| A Farini | A. Carl Anger | A. Giraud & Son | A. Lanternier | A. Lanternier & Co | A. Pillivuyt & Son | A. Radford Pottery | A. Vignaud | A. Z. Antonio Zen | A.B & R.P. Daniell | A.B. Jones & Son | A.B.Jones & Sons | A.E. Gray & Co Ltd | A.E. Hull Pottery Co. | A.E. Jones/Palissy Pot | A.G. Harley Jones | A.G. Richardson & Co L | A.T. Finney & Sons (Lt | A.T. Safronoff Factory | A.W. Buchan & Co | A.W. Fr. Kister | Abbeydale New Bone Chi | Abingdon Pottery (Abin | Achille Bloch | Ackerman & Fritze | Adderleys Ltd. | Adolf Persch |
| Adolphe Porquier | Adrien Dalpayrat | Adue Tosin | Agnes Benson | Agostinelli - Dal Pra | Akron China Co | Alan Brough | Alan Caiger-Smith | Albert & Jones (Longto | Albert Jacob Thewalt | Albert Potteries Ltd | Alboth & Kaiser | Alcock, Lindley & Bloo | Alexander Balfour & Co | Alexander Lauder (Laud | Alfred Bruno Schwartz | Alfred Colley & Co | Alfred Fenton & Sons | Alfred Hache & Co. | Alfred Meakin Ltd | Alfred Stellmacher Imp | Alicium Ceramics | Alka-Kunst Alboth & Ka | Allander Pottery | Allertons Ltd | Allman, Broughton & Co | Altenkunstadt Porcelai |
| Alton Towers Handcraft | Altrohlau Porcelain Fa | Amedee Lambert | American Art China | American Art-Ceramic C | American Bellekk Porce | American China Co | American Chinaware Cor | American Crockery Co | American Encaustic Til | American Limoges | American Pottery Manuf | American Terra Cotta & | American/Edgerton Art | Amphora | Amphora Work Reissner | Amstel | Amstelhoek | Anchor Porcelain | Anchor Pottery | Andre Francois | Andre Giraud Brousseau | Andre Metthey | Andre Prevot | Andrew Stevenson | Andy Titcomb | Angelo Minghetti & Son |
| Animal Friends | Anna Perenna, Inc. | Annaburg Earthenware F | Anthony Shaw & Co. | Anton Fischer | Anton Lang | Antonio Folco | Apollo Ceramics | Arabia Porcelain Facto | Arc-en-Ciel | Arch Pottery | Ardalt Inc | Arequipa Pottery | Aristocrat Florals & F | Arita Tabletop Co | Arkinstall & Sons | Arklow Pottery Ltd | Armand Marseille | Arnart Imports | Arnhemsche Faience Fac | Arno Apel | Arno Fischer Porcelain | Arte Della Ceramica | Arthur Bowker | Arthur J Wilkinson | Arthur J. Mountford | Arthur Wood & Son Ltd. |
| Artists Of The World ( | Arzberg Porcelain Fact | Ashby Potter's Guild | Ashstead Potters Ltd | Atanford Pottery | Atlan Ceramic Art Club | Atlas China Co | Augarten Porcelain Fac | August Haas | August Nowotny | August Saeltzer | Auguste Delaherche | Ault & Tunnicliffe Ltd | Auma Porcelain Work VE | Avalon Pottery | Avon Art Pottery Ltd | Avon Pottery | Axe Vale Pottery (Devo | Aylesford Priory Potte | Aynsley China Ltd | B. Bloch & Co. | B. Nassonoff Factory | B. Nassonoff Factory. | B.J. Brock & Co. | B?ttgersteinzeug | Baehr & Proeschild | Baggerley & Ball |
| Bailey Potteries Ltd | Baker & Chetwynd & Co | Baker, Bevans & Irwin. | Bancroft & Bennett | Banko Pottery | Barettoni gia Antonibo | Bareuther & Co Porcela | Barker & Son. | Barker Bros Ltd | Barker Pottery Co. | Barkers & Kent Ltd. | Barn Pottery Ltd | Barny, Rigoni, Langle | Baron's Pottery | Baroni Giovanni | Barrat's of Staffordsh | Barrie Alexander Ceram | Barrow & Co. | Barry Huggett | Basil Matthews | Batenin Porcelain Mfg. | Bates & Bennett | Bates Elliott & Co. | Bathwell & Goodfellow. | Batkin, Walker & Broad | Bauscher Bros. Porcela | Bawo & Dotter |
| Beardmore & Edwards. | Beaver Falls Art Tile | Beech & Hancock. | Belfiore | Bell Cook & Co. | Bell'Europa | Belle Vue Pottery. | Belleek Fine China | Benedikt Bros. | Benedikt Hasslacher | Benedikt Knaute | Benjamin E Godwin | Bennett Pottery | Bennington Potters, In | Berlin Porcelain Manuf | Bernard Leach, CBE | Bernard Moore | Bernardaud & Co. | Beswick Ltd. | Beth Blik | Beyer & Bock | Biloxi Art Pottery (Ge | Biltons (1912) Ltd | Biltons Tableware Ltd | Bing & Grondahl | Birks Brothers & Seddo | Birks, Rawlins & Co. |
| Bishop & Stonier | Black Forest Earthenwa | Blair & Co | Blair Ceramics, Inc. | Blairs Ltd | Blakeney Pottery Ltd | Blanchard Bros. | Bloch & Co | Block China Co. | Blue John Pottery Ltd | Blyth Porcelain Co. Lt | Boch & Buschmann | Boch Freres | Boch Freres Pottery | Bodley & Co | Bohemia Ceramic Works | Boisbertrand & Dorat | Bolingey Pottery | Booths | Booths & Colcloughs Lt | Boscastle Pottery (Cam | Boulton, Machin & Tenn | Bourdois & Bloch/Achil | Bourne & Leigh (Ltd) | Bourne, Baker & Bourne | Bovey Pottery Co Ltd | Bradleys |
| Brameld & Co (Rockingh | Branksome Ceramics/E. | Braunton Pottery Co. L | Bremer & Schmidt Porce | Brenner & Liebmann/Edu | Bretby Stoneware Co. L | Brewer Brothers | Bridgett & Bates | Bridgwood & Clarke | Britannia China Co. | Britannia Pottery Co. | British Anchor | British Art Pottery Co | Brockman Pottery Co | Bros. Metzel Porcelain | Brown & Steventon Ltd. | Brown-Westhead, More & | Brownfields Guild | Brownhills Pottery Co. | Brunt Bloor Martin & C | Brusch? Ceramics | Brush Pottery | Brush-McCoy Pottery Co | Brux Porcelain Manufac | Buckau Porcelain Manuf | Buckfast Abbey Pottery | Buen Retiro |
| Buffalo Pottery Co. | Burford Bros. | Burgau Porcelain Manuf | Burgess & Leigh | Burgess Bros. | Burmantofts | Burroughs & Mountford | Burslem Pottery Co Ltd | Burslem School of Art | Busano Francesco | Bwthyn Pottery | Byrdcliffe Pottery | C & E Carstens Porcela | C .J. C. Bailey | C. & J. Shaw (Junior) | C. & W, K. Harvey | C. H. Levy & Co | C. Teichert Stove & Po | C. Tielsch & Co | C.C. Puhlmann & Son | C.C.Thompson Pottery C | C.E. & F. Arnoldi | C.G. Schierholz & Son/ | C.H. Brannam | C.J. Mason | C.J. Mason & Son | C.L. & H.A. Poillon Po |
| C.M & C.J. Mason/G.L. | C.M.Hutschen-Reuther P | C.T. Maling & Sons | California Faience | Camark Pottery Co | Cambrian Pottery | Cambridge Art Pottery | Camille Naudot & Co | Camille Tharaud | Campbellfield Pottery | Canonsburg Pottery Co | Cardinal China Co | Carl Auvera | Carl Hans Tuppack | Carl Knoll | Carl Krister Porcelain | Carl Schumann Porcelai | Carl Spitz | Carl Thieme Saxonian P | Carn Pottery | Carrollton Pottery Co. | Carstens-Uffrecht | Carter & Co. Ltd. | Carter, Stabler & Adam | Cartwright & Edwards ( | Cartwright Bros. Co. | Cash Family Pottery |
| Castleton China, Inc | Catalina Pottery/Gladd | Cauldon Ltd | Cauldon Potteries Ltd | Cellar Pottery | Celtic Pottery | Ceralene | Ceramic Art Co. | Ceramic Art Ltd (1905) | Ceramic Workshop Co-op | Ceramica Briantea | Ceramics Hispania | Chabrol Freres & Poire | Challinor & Mayer | Chamberlain & Co | Chapmans Longton Ltd | Charles Ahrenfeldt | Charles Allerton & Son | Charles Amison (& Co L | Charles Bone A.R.C.A. | Charles Cazin | Charles Collinson & Co | Charles Field Haviland | Charles Ford | Charles Graham | Charles Heathcote & Co | Charles Hobson (& Son) |
| Charles James Mason | Charles L Dwenger | Charles Meakin | Charles Meigh | Charles Meigh & Son | Charles Pillivuyt | Charles Reboisson | Charles Vyse | Charles W. McNay & Son | Charles Waine | Charles-Jean Avisseau | Chastagner | Chatres-sur-Cher | Chauffriasse & Rougeri | Chelsea China Co. | Chelsea Keramic Art Wo | Chelsea Pottery | Cherry Blossom | Chesapeake Pottery | Chessell Pottery (IOW) | Chester Nicodemus | Chester Pottery | Chesworth & Robinson | Chetham & Robinson & S | Chicago Terra-cotta Wo | Chikusa | Chr. Carstens |
| Christian Fischer | Christian Nonne | Christian Seltmann | Christian Seltmann Por | Christie & Beardmore | Christophe Windisch | Christopher Dresser | Chugai China | Cincinnati Art Pottery | City Pottery Co. | Clayware Factory Schwa | Clement Massier | Clementson & Young | Clementson Bros. | Cleminson Pottery | Clermont and Chainaye | Clewell Ware | Clifton Art Pottery | Clinchfield Pottery/So | Cloughs Royal Art Pott | Cmielow Porcelain & Ce | Co-operative Wholesale | Coalport Porcelain Wor | Cochran & Fleming | Cockson & Harding | Cockson & Seddon | Colclough & Co/Stanley |
| Colclough China Ltd/Bo | Collingwood & Greatbat | Colonial Co. | Columbian Art | Continental Kilns | Cook Pottery Co | Coors Porcelain | Copeland & Garrett | Cork & Edge | Cork, Edge & Malkin | Corning Glass Works | Corns China Co. | Coronation China Co. | Coultry Pottery | Count Thun's Porcelain | Country Lane Pottery | Cowan Pottery | Coxon & Co. | Coxon Pottery | Craemer & Heron Porcel | Creidlitz Porcelain Fa | Creil & Montereau | Crescent Pottery | Cripplesease Pottery | Cronin China Co | Crooksville China Co. | Crowan Pottery |
| Crown China Crafts Ltd | Crown Derby Porcelain | Crown Devon Ltd | Crown Dorset Pottery | Crown Potteries Co | Crown Pottery Co | Crown Staffordshire Po | Crystal Porcelain Pott | Cumbow China Co. | Cunningham & Pickett | Cybis Porcelains | D. Beckley | D. F. Haynes & Son (Ch | D.E.McNicol Pottery Co | D.F. Haynes & Co (Ches | D.J. Evans & Co | Dagobert Peche | Dahl-Jensen Porcelain | Dai Nippon | Daison Pottery | Dallas Pottery | Dalton Pottery | Dartmouth Pottery Ltd. | David Johnston et Cie | David Leach | David Lockhart & Sons | David McBirney & Co |
| David Methven & Sons | David Wilson (& Sons) | Dayton Porcelain Works | Deacon Pottery | Deakin & Bailey | Deakin & Son | Dedham Pottery | Delan Cookson | Delaware Pottery Co. | Della Robbia Co Ltd | Demeuldre Establishmen | Denby Tableware | Denver China Pottery C | Derby Porcelain Works | Desert Sands Pottery | Devonmoor Art Pottery | Devonshire Potteries L | Dillwyn & Co | Dimmock & Smith | Dinky Art Co | Don Pottery | Dora Barrett | Dora May Billington | Doric China | Dornheim Koch & Fische | Dorothy Ann Floral Chi | Doulton & Co |
| Doulton & Watts | Dr. Widera & Co Porcel | Dresden | Dresden Earthenwarewor | Dresden Porcelain Co | Dresden Pottery Works | Dressel, Kister & Co | Ducal Brunswick Porcel | Duchcov Porcelain | Dudson Brothers | Dudson, Wilcox & Till | Dummler & Breiden | Dunn Bennett & Co (Ltd | Dura Porcelain Co | Duraline Hotel Ware | Durant Kilns | Dux Porcelain Manufact | E & A Muller Porcelain | E & C Challinor | E Brain & Co Ltd | E Hughes & Co. | E. Baggaley Ltd | E. Challinor & Co | E. Jacquemin | E. M. Blensdorf | E. Swasey & Co | E. T. Troutbeck |
| E.H. Sebring China Co. | E.J.D Bodley | Earthenware Factory VE | Earthenware Works AG | East End Pottery Co | East Liverpool Pottery | East Morrisania China | East Palestine Pottery | East Trenton Pottery C | Ebeling & Reuss Co. | Edelstein Porcelain Fa | Edge Malkin & Co | Edge, Barker & Co | Edgerton Pottery Co | Edme Samson | Edmond Lachenal | Edmund Kruger Porcelai | Eduard Haberlander Por | Eduard Josef Wimmer | Eduard Kick | Edward & George Philli | Edward (Meakin) Pearso | Edward Asbury & Co. | Edward Bay | Edward Bingham | Edward Challinor | Edward Clark & Co |
| Edward Corn | Edward F. Bodley & Son | Edward Lycett | Edward Marshal Boehm | Edward Marshall Boehm | Edward Walley | Edwin Bennett Pottery | Edwin M Knowles | Edwin M Knowles China | Egersund Pottery Facto | Eichhorn & Bandorf | Eisenberg Special Porc | Elektra Porcelain Co L | Elijah Cotton | Elijah Jones | Elizabethan Fine Bone | Elkin, Knight & Bridgw | Elkin, Knight & Co | Elkins & Co | Eloury-Porquier | Elsmore & Forster | Elton Pottery | Emil Fischer | Emile Decoeur | Emile Galle | Empire Porcelain Co | Empire Pottery |
| Enoch Plant | Enoch Wedgwood Ltd. | Enoch Wood & Sons | Enterprise Pottery Co. | Epiag | Epiag Branch Altrohlau | Era Art Pottery Co | Erdmann Schlegelmilch | Eric & Meira Stockl | Ernest Carriere | Ernst Bohne & Sons | Ernst Dorfner & Co | Ernst Teichert GMBH | Ernst Wahliss Alexandr | Etienne Moreau-Nelaton | Etruria Pottery (OTT & | Evans & Glasson | Eversberg Porcelain Fa | F & R Pratt & Co | F B Beerbower & Co | F. Grosvenor (& Son) | F. Hancock & Co | F. Thomas Porcelain Fa | F. Winkle & Co | F.A. Reinecke | F.A. Schumann | F.J. Lenz & Burger |
| Fabrique de L'Imperatr | Faience Manufacturing | Faiencerie de la Grand | Fasold & Stauch | Fell & Thropp Co | Figer & Co. Porcelain | Fine Arts Porcelain Lt | Fine Ceramics Company | First Bayreuth Porcela | Fischer & Co Porcelain | Fischer & Meig | Fischer & Reichenbach | Fischer, Bruce & Co | Fish Pye Pottery | Flintridge China Co | Floral China Co. Ltd | Florentine Pottery | Ford & Challinor | Ford & Pointon, Ltd. | Ford & Riley | Ford & Sons (Ltd) | Ford China Co. | Fordy, Patterson & Co | Fortune de Monestrol | Fosters Pottery | Fowey Pottery | Fr. Bohme Porcelain Fa |
| Fr. Pfeffer | Frackelton Pottery | Francis Dillon | Francis Gardner Porcel | Francis Glanville Coop | Francis Morley (& Co) | Frank Beardmore & Co | Frank Haviland | Franklin Mint | Frankoma Pottery | Franz Anton Mehlem Ear | Franz Heinrich | Franz Josef Mayer | Franz Lang | Franz Lehnert | Franz Manka | Franz Neukirchner Porc | Franz Prause | Franz Urfuss | Fraureuth Porcelain Fa | Freakley & Farrell | Frederick Christian Gr | Frederick Jones (& Co) | Frederick Malkin | Freiberg Porcelain Fac | French China Co. | French Saxon China Co |
| Friedrich Carl Muller | Friedrich Egidius Henn | Friedrich Goldscheider | Friedrich Kaestner Por | Friedrich Schwab | Friedrich Thomin | Friedrich Wilhelm Wess | Frisia Varel Porcelain | Fukagawa | Fulham Pottery & Cheav | Fulper Pottery | Furnivals Ltd | Furstenberg Porcelain | G L Ashworth & Bros | G. Popoff Factory | G. Robrecht | G. W. Turner & Sons | G.H. & E.E. Champion | G.L.A. & Bros | Galluba & Hofmann | Gater, Hall & Co /Barr | Gefle Porcelainworks | Geijsbeek Pottery | Geitner & Stierba | Gelson Bros | Georg Schmider | George Borgfeldt & Co |
| George C. Murphy Potte | George Clews & Co. | George Fishley Holland | George Frederick Bower | George Grainger (& Co) | George Hobson | George Jones (& Sons L | George Mladenk & Co | George Morley & Sons | George Phillips | George Proctor & Co (L | George S. Harker & Co | George Scott & Sons Po | George Thomas Mountfor | George Townsend | George Wade & Son Ltd | George Wooliscroft (& | Georges Boyer | Georges Serre | Gerard, Dufraisseix & | Gerold & Co. New Porce | Geyer, Koerbitz & Co | Gibson & Sons | Gien | Gildea, Walker & Co | Gille Jeune | Gilman & Co |
| Ginnie Bamford Pottery | Ginnie Harrison Potter | Giuseppe Carlo Galvani | Giuseppi Tagliariol (T | Gladding, McBean & Co | Glasgow Pottery Co (Jo | Glidden Pottery Co. | Globe Pottery Co | Gloria Anton Weidl Por | Gmundner Keramik | Godwin Hewitt | Goldscheider Pottery L | Gonder Ceramic Art Co. | Goodwin & Bullock | Goodwin & Ellis | Goodwin Pottery Co | Goodwin, Bridgwood & H | Goonhilly Pottery | Gosse | Gotthelf Freiner/G. Gr | Gottlob Nathusius | Goumont-Labesse | Govancroft Potteries L | Graf & Krippner | Grand Ducal Majolica M | Grand Feu Art Pottery | Granit |
| Green & Clay | Green Dene Pottery | Greenwood Pottery | Greiner & Holzapfel | Greiner's Widow & Leer | Grenville Pottery Ltd | Griffen, Smith & Hill | Griggs Forge Pottery | Grimwade Bros | Grimwades Ltd | Grindley Hotel Ware Co | Grose & Co | Grossherzog's Ceramic | Grove & Stark | Grueby Faience Co | Grunstadt Earthenware | Guerin-Pouyat-Elite | Guernsey Pottery Ltd | Guillaume Lambert (& C | Gundrun Baudischewittk | Gustafsberg | Gustave Revol | H. Aynsley & Co (Ltd) | H. Hutschenreuther | H. Lange Porcelain Fac | H. Schmidt Porcelain F | H. Wehinger & Co |
| H.A. Balleroy | H.A. Wain & Sons Ltd | H.F. Coors Co. | H.J. Colclough | H.J. Wood Ltd | H.J.Wood | H.M.Williamson & Sons | H.R. Wyllie China Co. | Haagsche Plateelbakker | Haas & Czjzek | Hackefors Porcelain AB | Hackwood | Hackwood & Keeling | Haeger Potteries | Hael Workshops for Art | Haga Pottery | Halcyon Art Pottery | Hall China Co | Hammann Family | Hammersley & Co | Hampshire Pottery (J.S | Hampson & Broadhurst | Hancock & Wittingham | Hanley China | Hanley Porcelain Co | Hanns Graf | Hanover Pottery |
| Hans Neuerer | Harding & Cockson | Hardtmuth | Harker Pottery Co | Harker, Taylor & Co | Harrop & Burgess/ Thom | Hart & Moist Pottery | Hartley, Greens & Co. | Hautin & Boulanger | Haviland & Co | Haviland Bros. & Co./H | Haviland SA | Hawley Bros | Hawley, Webberly & Co. | Haynes, Bennett & Co ( | Healacraft China Ltd | Heath & Blackhurst | Heath Ceramics | Heber & Co Porcelain F | Heinrich & Co | Heinrich Baensch | Heinrich Porcelain | Heinrich Schumann | Heinrich Winterling Po | Heinzl & Co. | Helena Wolfsohn | Henneberg Porcelain Ve |
| Henri Ardant & Co. | Henri D'Arceau-Limoges | Henri Fouque | Henriot Quimper (Dumai | Henry & Richard Daniel | Henry Alcock & Co (Ltd | Henry Burge | Henry Meakin | Henry Mills | Henshall & Co | Herculaneum Pottery | Herend | Herman Scholz Successo | Hermann Ohme Porcelain | Hermann Voigt Porcelai | Hertel Jacob & Co GMBH | Hertha Bucher | Hertwig & Co | Heubach Bros | Heubach, Kampfe & Sont | Hewitt & Leadbeater/He | Hibel Studio | Hicks & Meigh | Hicks, Meigh & Johnson | Hilditch & Son | Hines Bros. | Hinrichs & Co |
| Hochst Porcelain Manuf | Hoganas Ceramics | Holdcroft, Hill & Mell | Holland & Green | Hollinshead and Griffi | Hollinshead and Kirkha | Homer Laughlin China C | Honiton Pottery Ltd | Hoods Ltd | Hope & Carter | Horn Bros. | Hornsea Pottery Co Ltd | Howard Pottery Co. | Hubbe Brothers | Hubel & Co. | Hudson & Middleton Ltd | Hugo F Kirsch | Hull Pottery Co. | Hull-House Kilns | Hulse & Adderley | Hulse, Nixon & Adderle | Humphrey Palmer | Hutschenreuther AG | Hyalyn Cosco | Hyalyn Porcelain | Iden Pottery | Illinois China Co. |
| Ilmenau Porcelain Fact | Imperial Factory, Alex | International Pottery | Interspace Corporation | Iron Mountain | Iroquoisch China Co. | Isaac & Thomas Bell. | Isaac Davis (Prospect | Isaac Thomas & Sons | Isaac Wilson & Co | Isidore de Rudder | Isle of Wight Pottery | Ivora | J & G Meakin Ltd | J & MP Bell & Co | J Dimmock & Co | J. Boyer | J. Fryer & Son | J. Goodwin Stoddard & | J. Huttner & Co. | J. Kronester | J. O. Nilson | J. Plant & Co | J. Poppauer | J. Pouyat | J. T. Close & Co. | J. Uffrecht & Co |
| J. Vieillard & Cie | J. W. Pankhurst (& Co) | J.B. Owens Pottery | J.B. Wood & Co | J.F. Walford | J.G. Paulus/Luise Grei | J.H. & J. Davis | J.H. Cope & Co | J.H. Heath Ltd. | J.H. Middleton (& Co)/ | J.H. Walton | J.H. Weatherby | J.H.Middleton | J.J. Scharvogel | J.J. Schmidt | J.N. Van Recum & Heirs | J.S. Maier & Co | J.W Mijnlieff | J.W. McCoy Co | Jabez Blackhurst | Jackson & Gosling | Jackson & Gosling Ltd | Jackson Vitrified Chin | Jacob & Mardochee Peti | Jacob & Thomas Furniva | Jacob Ferdinand Lenz | Jacob Furnival & Co |
| Jacob Petit | Jacob Scholl | Jacob Zeidler & Co. | Jaeger & Co | Jakob Ferdinand Lenz & | James & Ralph Clews | James & Thomas Edwards | James Beech. | James Broadhurst & Son | James Edwards | James F Wileman | James Gildea | James H. Baum | James Hadley & Sons Lt | James Keeling | James Kent (Ltd) | James Macintyre & Co | James Pearson Ltd. | James Reeves | James Sadler & Sons (L | James Smith | Japanese A A Vantine & | Japanese Ardalt | Japanese Arita | Japanese Bibi | Japanese C. P. C. | Japanese Cherry Blosso |
| Japanese Hira | Japanese Hirado | Japanese Imura | Japanese Izumi (Nichi | Japanese Kitagawa Toge | Japanese Maruku | Japanese Maruto Ware | Japanese Moriyama | Japanese N & C Nagoya | Japanese Nichi Hon | Japanese Nippon | Japanese Nippon Yoko B | Japanese Okayama | Japanese S.P.P. | Japanese Samurai | Japanese Sango | Japanese Seiei & CO | Japanese Seto | Japanese Shibata | Japanese T.M.K. | Japanese Takahashi Com | Japanese Takito | Japanese Tashiro Shote | Japanese Unidentidied | Jean Haviland | Jean Pouyat | Jerome & Delphin |
| Jerome Massier | Jersey City (American) | Jersey Pottery Ltd | Joachim Langlois | Job & John Jackson | Job Meigh (& Son) | Job Ridgway | Johann Anton Hladik | Johann Haviland | Johann Heinrich Koch | Johann Moehling | Johann Seltmann | John & George Alcock | John & Karl Hartmuth | John & Richard Riley | John & Robert Godwin | John & William Ridgway | John Alcock | John Aynsley & Sons | John Beswick (Ltd) | John Bevington | John Bordeaux Pottery | John Carr & Co (& Sons | John Dan | John Davenport | John Denton Baxter. | John Edwards (& Co) |
| John Goodwin | John Hall (& Sons) | John Hawley (& Co) | John Hawthorn | John Heath Davis | John Holland | John Hulme & Sons | John King Knight | John Leach | John Maddock | John Maddock & Sons Lt | John Meir & Son | John Mortlock | John Phillips & Co | John Pratt & Co Ltd | John Ridgway & Co | John Rogers & Son (Spe | John S. Maddock (Ltd) | John Steventon & Sons | John Tams (& Sons) (Lt | John Thomson | John Turner | John Venables & Co | John Wardle & Co | John Wedg Wood | John Wedge Wood | John Wyllie & Son |
| Johnson Bros Ltd | Johnson China Co | Jonroth Studios | Jos. Ant. Hussl | Josef Bock Porcelain M | Josef Hoffman | Josef Mayer | Josef Palme | Josef Rieber & Co Porc | Josef Strnact | Joseph Bourne & Son Lt | Joseph Burn & Co | Joseph Cheret | Joseph Clementson | Joseph Fouque/Jean-Fra | Joseph Genella | Joseph Heath | Joseph Holdcroft | Joseph Robinson | Joseph Schachtel | Joseph Stubbs | Joseph Twigg (& Brothe | Josiah Spode | Josiah Wedgwood & Sons | Jules Morlent | Jules-Joseph-Henri Bri | Julien Ballerroy & Co |
| Julius Dietl Porcelain | Julius Dressler | Julius Griesbach Porce | Julius Hering & Son | Julius Rother | Justin Tharaud & Son/P | K. Steinmann | K.Kriegl & Co. | Kahla Porcelain Factor | Kahla Porcelain Factor | Kaiser Porcelain | Kalk Porcelain Factory | Kampfe & Heubach | Kandern Pottery | Karl Ens Porcelain Fac | Karl Nehmzow Porcelain | Karl Schaaff | Karlskrona Porcelain F | Katharine Pleydell-Bou | Keeling & Co | Keller & Guerin | Kenneth Quick | Kensington Fine Art Po | Kensington Pottery Ltd | Kenton Hills Porcelain | Kera Dea | Kerafina |
| Keramos | Kern Collectibles | Kernewek Pottery | Kerr & Binns (Worceste | Keystone China Co. | Keystone Pottery Compa | Keystone Pottery Ltd. | Kinjo Nippon | Kiriakoff Factory | Kirkhams Ltd. | Kirkland & Co | Klaus & Peter Muller | Kloster Veilsdorf Porc | Knight's of Tintagel | Knight, Elkin & Co (al | Knowles Taylor & Knowl | Kokura | Kolo Moser | Konigszelt Porcelain F | Koninklyk Factory (Gou | Konstanz Porcelain Man | Koppelsdorf United Por | Kornilov | Kornilov Factory | Kozloff Factory | Kranichfeld Porcelain | Krautheim & Adelberg P |
| Kristen Roth | Krister Porcelain Manu | Kurlbaum & Schwartz | Kusnetzoff Factory | Kuznetsov | L. Bernardaud & Co. | L. de la Riva & Co. | L. Hutschenreuther Por | L. Lourioux | L. Michelaud | L. Parant (La Pepinier | L. Texeraud | L.A. Berks & Co. | L.B. Beerbower & Co | La Ceramique (Jean Pou | La Solana Potteries | Lake's Cornish Pottery | Lancaster & Sons/Lanca | Lands End Pottery | Langenthal Porcelain F | Langewiesen Factory | Latrille Brothers | Laughlin Bros | Laviolette | Leach Pottery (St Ives | Leaper (Newlyn Pottery | Leboeuf & Milliet |
| Leeds Pottery | Legrand & Co | Lehmann & Sohn | Leigh Pottery | Leningrad State Factor | Lenox Inc | Leon Sazerat, Blondeau | Lerosey | Les Faienceries de Qui | Lesme | Lettin Porcelainwork V | Lewis Straus & Sons | Ley & Weidermann | Lichtenstern Bros | Liddle, Elliott & Son | Limbach Porcelain Fact | Limoges China Co. | Limoges-Castel | Limoges-Elite | Limoges-Turgot | Lindner Porcelain Fact | Linthorpe Pottery | Lippert & Haas | Livesley, Powell & Co | Lladro | Locke & Co. | Locker & Co |
| Lockett & Hulme | Lockhart & Arthur | Longpark Pottery Co (L | Longton Hall Porcelain | Longton Porcelain Co L | Longton Pottery Co Ltd | Longwy Faience Co. | Lonhuda Pottery | Looe Pottery | Los Angeles Potteries | Losanti (Mary Louise M | Lovatt & Lovatt | Lovatt's Potteries, Lt | Low Art Tile Works | Lowe, Ratcliffe & Co. | Lowesby Pottery | Lubtheen Porcelain Fac | Lucie Rie | Ludwig Wessel | Ludwigsburg Porcelain | Lyman, Fenton & Co | M. Green & Co | M.A. Hadley Pottery | M.E. Bulmer | M.W. Reutter | Machin & Potts | Maddock & Gater |
| Maddock & Seddon/John | Maddock Pottery | Mafra & Son | Maling Pottery | Malkin, Walker & Hulse | Manifattura Di Signa | Mansfield Bros. | Manuel Alvarez & Hijos | Manufacture de Porcela | Manufacture Nouvelle d | Marazion Pottery | Marblehead Pottery | Markham Pottery | Marktschwaben Ceramics | Marple, Turner & Co | Martial Redon & Co. | Martin & Nephew/Charle | Martin Bros. | Maryland Pottery | Marzolf & Co | Mas Laeuger (Kandern P | Mask Pottery | Mason's Ironstone Chin | Mathilde Flogl | Matt Morgan Pottery | Mavaleix & Granger | Maw & Co |
| Maximilien-Joseph Bett | Mayer & Elliot | Mayer & Newbold | Mayer & Sherratt | Mayer China Co | Mayer Potteries Co Ltd | McNeal & Co. | McNicol- Smith Co./McN | Meissen Stove & Porcel | Mekus & Moest Porcelai | Mellor Venables & Co | Mellor, Taylor & Co | Menzl & Co. Porcelain | Mercer Pottery Co | Merkelbach & Wick | Merkelsgrun Porcelain | Merlin-Lemas | Merrimac Pottery Co | Metlox Potteries | Metzler & Ortloff | Miantre, Raynaud & Co. | Michael Ambrose Cardew | Michael Casson | Michael Mezer | Michael Powolny | Michel Aaron | Middle Lane Pottery/Br |
| Middlesbrough Pottery | Midwinter | Mikasa | Miles Mason | Millington, Astburg & | Minton | Miss Margaret Leach | Mitterteich Porcelain | Moira Pottery Co Ltd | Moller & Dippe | Monmouth Pottery Co. | Moore (Bros) | Moravian Pottery & Til | Moreau Aine & Co | Morgan Belleek | Morimura Bros. | Moritz Fischer | Moritz Zdekauer | Morley & Ashworth | Morley & Co | Morley, Fox & Co Ltd | Mosa Porcelain & Tile | Mosaic Tile Co | Mosanic Pottery Max Em | Moser Brothers Britann | Mountainside Art Potte | Mousehole Pottery |
| Mouzin Lecat & Co | Mt. Fujiyama Nippon | Mueller Mosaic Tile Co | Muhlbach Porcelain Fac | Muller & Co | Muncie Pottery | Myott, Son & Co | Myott-Meakin | N. Dickinson | N.V. Pottery Schoonhov | Nantgarw China Works | Nardon & Lafarge | Nashville Art Pottery | Nast | National China Co | National Potteries Inc | Nautilus Porcelain Co. | Neale & Co | Nelson McCoy Pottery | New Castle Pottery | New Chelsea Porcelain | New Devon Pottery Ltd | New England Pottery Co | New Hall Pottery Co Lt | New Milford Pottery Co | New Orleans Art Potter | New Porcelain Factory |
| New Wharf Pottery Co. | New York & Rudolstadt | New York City Pottery | Newcomb Pottery | Newlyn Harbour Pottery | Newport Pottery Co. | Nic Harrison Ceramics | Nicholas Vergette | Nicholas Villeroy | Niderviller Faience Fa | Niloak Pottery | Nippon | Nippon Tokusei (Japan | Nitto | Nittsjo Earthenware Fa | Norah Braden | Noritake | Norman Rockwell Museum | Norse Pottery | North Dakota School of | North Staffordshire Po | Northwestern Terra Cot | Northwestern Terra Cot | Norton Pottery | Nove | Novyki Brothers Factor | Nymolle Ceramic Factor |
| Nyon | Occupied Japan | Oepiag | Ohio China Co | Ohio Valley China Co | Okura Art China (Norit | Old Hall Ltd | Oldest Volkstedt Porce | Oliver China Co. | Onondaga Pottery Co | Optat Milet | Orange Tree Pottery | Orion | Oscar & Edgar Gutherz | Oscar Schaller & Co | Oscar Schaller & Co Su | Oscar Schlegelmilch | Oscar Schlegelmilch (R | Oscar Schlegelmilch Po | Ospag Austrian Sanitar | Overbeck Pottery | P. Donath Porcelain Fa | P.Donath Silesian poce | P.H.Leonard | P.T. Fomin Factory | Pablo Picasso | Paden City Pottery Co. |
| Palissy Pottery Ltd | Paragon China Co | Paraoutaud Freres | Paris Bros | Patterson & Co (George | Paul A. Straub | Paul Dachsel | Paul Muller Porcelain | Paul Rauschert | Paul Rauschert kg | Paul Revere Pottery | Paula Humphris | Pauline Pottery | Pauline Thompson | Pearl China Co | Pearl Pottery Co | Pearson & Co | Pearson, Farrall & Mea | Peggy Cherniavsky | Pemberton & Oakes | Pen-Lyn Pottery | Penderleath Pottery | Pendley Pottery | Pennsylvania Museum & | Pensbury Pottery | Penzance Pottery | Peoria Pottery Co |
| Percy Brown | Perlee Inc | Peter G. Arnold | Peter Holdcroft & Co | Peter Holdsworth | Petrograds State Facto | Petrus Regout | Pewabic Pottery | Pfaltzgraff Co | Pfeffer Bros | Pfeiffer & Lowenstein | Pfluger Brothers & Co | Philidelphia City Pott | Philip Gardiner Potter | Philip Rosenthal & Co. | Philip Rosenthal & Co. | Phillip Aigner | Phillips Pottery | Phoenix Pottery, Kaoli | Pickard China Co | Pickard Inc | Pierre Vignaud (Jamaul | Piesau Porcelain Facto | Pigory | Pilkington's Tiles Ltd | Pillivuyt & Co | Pinder, Bourne & Co |
| Pioneer Pottery Co | Pisgah Forest Pottery | Pitcairns Ltd | Plankenhammer Porcelai | Plant Bros | Plant Brothers Crown P | Plastographic Co | Plaue Porcelain Manufa | Plazuid Factory (Gouda | Plymouth Pottery Ltd | Podmore China Co | Podmore, Walker & Co | Pohl Bros Porcelain Fa | Poillon Pottery | Pointon & Co Ltd | Pollwitz Porcelain Fac | Poole Pottery Ltd | Pope-Gosser China Co | Porcelain Factory Neum | Porcelain Figurines VE | Porcelain Fles | Porcelain Union United | Porcelaine de Paris | Porcelaine Limousine | Porcelaines Limoges Ca | Porcelainiere de Limog | Porsgrund Porcelain Fa |
| Portheim & Sons | Porthmeor Pottery | Portland Pottery Ltd | Portmeirion Potteries | Possil Pottery | Potters Co-Operative C | Pottery Guild | Pountney & Allies | Pountney & Co Ltd | Pountney & Goldney | Powell & Bishop/Powell | Powell, Bishop & Stoni | Poxon China Co/Vernon | Pratt & Simpson | Price & Kensington Ltd | Price & Kensington Pot | Price Bros (Burslem) L | Prince-Electoral Porce | Probstzella Porcelain | Prospect Hill Pottery | Prykernow Pottery | Purbeck Pottery Ltd | Purinton Pottery | Queen Anne | R Davies & Co | R Woilfinger Porcelain | R. Bloch Porcelain of |
| R. C. Noritake | R. Cochran & Co | R. Delinieres & Co. | R. Dodd | R. Hodier | R. M. Krause | R. Stevenson & William | R.H. & S.L. Plant (Ltd | R.H. Plant & Co. | R.J. Ernst Enterprises | Ralph Hall (& Son or & | Ralph Hammersley (& So | Ralph Malkin | Ralph Stevenson (somet | Ram | Raschkin Factory | Rathbone Smith & Co | Rau Porcelain Factory | Raymond Laporte | Raynaud & Co | Read & Clementson | Red Wing Pottery | Red Wing Stoneware | Redfern & Drakeford | Regency China Ltd | Regina Art Pottery | Reginald Fairfax Wells |
| Reginald Wells | Reichenbach Porcelainw | Reid & Co | Reinhold Merkelbach | Reinhold Schlegelmilch | Reinhold Schlegelmilch | Reinhold Schlegelmilch | Reinhold Schlegelmilch | Reinhold Schlegelmilch | Reinhold Schlegelmilch | Reinhold Schlegelmilch | Rene Frugier | Retsch & Co | Rhead Pottery | Rheinsberg Porcelain F | Ribes | Richard Alcock & Co | Richard Eckert & Co Po | Richard Kampf Porcelai | Richard Klemm | Richard Mutz | Richard Vernon Wildblo | Richter, Fenkl & Hahn | Ridgewood China | Ridgway & Abingdon | Ridgway & Morley | Ridgway Potteries Ltd |
| Ridgway, Morley, Wear | Ridgways (Bedford Work | Ridgways, Sparks & Rid | Rising Sun Nippon | Risler & Co | River Shore Ltd | Robert Hanke Porcelain | Robert Haviland & C. P | Robert Heron (& Son) | Robert Persch Porcelai | Robertson Art Tile Co. | Robertson Pottery | Robineau Pottery | Robinson & Leadbetter | Robinson & Sons | Robinson & Wood | Robinson Ransbottom Po | Robinson, Wood & Brown | Robj | Roblin Art Pottery | Rockingham Works | Roger Guerin | Roland Vuichon | Rondeleux Fils Aine & | Rookwood Pottery Co | Roper & Meredith | Rorstrand AB |
| Rorstrand Porcelain Fa | Rose Valley Pottery | Rosenthal Glass & Porc | Rosenthal Porcelain AG | Roseville Pottery Co | Rosina China Co | Roslyn China | Rosudgeon Pottery | Rothemund, Hager & Co | Rouse & Turner | Rowland & Marsellus Co | Royal Aller Vale & Wat | Royal China Co. | Royal Copenhagen Porce | Royal Crown Derby | Royal Devon | Royal Dragon Nippon | Royal Fabrique Fonteba | Royal Grafton Bone Chi | Royal Kaga Nippon (Plu | Royal Kinran Crown Nip | Royal Longpark Pottery | Royal Nishiki Nippon | Royal Porcelain Gmbh | Royal Porcelain Manufa | Royal Porcelain Manufa | Royal Porcelain Manufa |
| Royal Saxe Corporation | Royal Tormohun Pottery | Royal Winton | Royal Worcester Spode | Royally Privileged Por | Rozenburg | Rubelles | Rudolf & Eugen Haiding | Rudolf Kammer | Rudolstadt Porcelain F | Ruskin Pottery | Russian Imperial Porce | Rye Pottery | S Fielding & Co | S.W. Dean | Sabin Industries Inc | Saint-Cricq-Cazeaux/Le | Salem China Co | Salisbury Crown China | Salt & Nixon Ltd | Sampson Bridgwood & So | Sampson Hancock (& Son | Sampson Smith Ltd | Samson & Co | Samual& John Rathbone | Samuel Alcock & Co | Samuel Barker & Son |
| Samuel Ford & Co. | Samuel Ginder & Co | Samuel Johnson Ltd | Samuel Keeling & Co | Samuel Radford (Ltd) | Sandizell Porcelain Fa | Santa Anita Pottery | Sara Lee Mallory | Sargadelos | Sarreguemines | Sauer & Roloff Earthen | Saxon China Co. | Saxonian Porcelain Fac | Schafer & Vater Porcel | Scheibe-Alsbach Porcel | Schiller & Gerbing | Schirnding Porcelain F | Schmelzer & Gerike | Schmid | Schmidt & Co. Porcelai | Schmidt & Greiner/F. K | Schneider & Co. | Schoelcher | Schoenau & Hoffmeister | Schoenau Bros | Schonwald Porcelain Fa | Schramberger Majolica |
| Schumann & Schreider | Schumann China Corp | Schutzmeister & Quendt | Schwandorf Pottery Fac | Schwarzburg Workshop f | Sebastian Schmidt/Eber | Sebring Pottery Co | Sefton & Brown | Serpaut | Sevres | Sevres (Vincennes) | Sevres China Co | Shaubach-Kunst Licht-W | Shawnee Pottery | Shawsheen Pottery | Shelley Potteries Ltd. | Shenango China Co | Shirnding Porcelain Fa | Shore, Coggins & Holt | Shorter & Son | Silbermann Bros. | Silver Springs Florida | Simon Peter Gerz | Simpson (Potters) Ltd | Sipiagin | Sir Edmund Elton | Sir James Duke & Nephe |
| Sitzendorf Porcelain M | Slama & Co | Smith & Binnall | Smith & Ford | Smith-Phillips China C | Societa Ceramica Itali | Societa Ceramica Richa | Societe Ceramique | Societe Limousine de P | Societe Porcelainiere | Soho Pottery | Sommer & Matschak | Sontag & Sons (Royal B | Sorau Porcelain Factor | South Holland Pottery | Southern Potteries Inc | Spechtsbrunn Porcelain | Spode | Springer & Co | St Agnes Pottery | St Eriks Earthenware F | St Nectan's Pottery | Stadtilm Porcelain Fac | Stadtlengsfeld Porcela | Standard Pottery Co. | Stanford Pottery | Stangl Pottery |
| Stanley Pottery Co | Stanley Pottery Ltd | Star China | Star Encaustic Tile Co | Star Pottery | State Porcelain Factor | State's Porcelain Manu | State's Porcelain Manu | State's Porcelain Manu | Steinwiessen Porcelain | Steninge Ceramic AB | Sterling China Co | Stern Porcelain Manufa | Stetson China Co | Steubenville Pottery C | Stevenson & Hancock | Stevenson, Sharp & Co | Stockhardt & Schmidt-E | Stockton Art Pottery | Stouffer China | Striegauer Porcelain F | Strobel & Wilken | Stubbs & Kent | Stubbs Bros | Studio Szeiler | Susie Cooper Pottery L | Svend Jensen |
| Swansea Pottery | Swift & Elkin | Swillington Bridge | Swinnertons Ltd | Sylvan Pottery Ltd | Syracuse China Corp | Szeiler Studio Ltd | T & R Boote Ltd | T. & J. Bevington & Co | T. J. & J. Mayer | T. Rathbone & Co | T.A. & S.Green (Porece | T.A. McNicol Pottery C | T.G. & F. Booth | T.G. Green & Co (Ltd) | T.J. Wheatley & Co. | T.W. Barlow & Son | Takito | Taxile Doat | Taylor & Kent | Taylor Smith & Taylor | Taylor, Lee & Smith | Taylor, Smith & Taylor | Taylor, Tunnicliffe & | Tempest, Brockman & Co | Teplitz Technical | Tettau Porcelain Facto |
| Tharaud | The Longpark Pottery | The Sphinx (Petrus Reg | The Wick China Co. | Theodore Deck | Theodore Haviland & Co | Thomas & Benjamin Godw | Thomas & Co Porcelain | Thomas & Hohn Carey | Thomas & John Mayer | Thomas C Wild | Thomas China Co | Thomas Cone Ltd | Thomas Dean (& Son) (L | Thomas Dimmock (Jnr) & | Thomas Edwards | Thomas Fell (& Co) (Lt | Thomas Forester & Sons | Thomas Forester Son & | Thomas Furnival & Sons | Thomas G. Booth | Thomas Godwin | Thomas Goodfellow | Thomas Green | Thomas Heath | Thomas Hughes & Son (L | Thomas Hulme |
| Thomas Ingleby & Co | Thomas Lawrence (Longt | Thomas Maddock & Sons | Thomas Mayer | Thomas Morris | Thomas Nicholson & Co | Thomas Poole | Thomas Recknagel | Thomas Till & Sons | Thomas Twyford | Thomas Walker | Thomas Wood & Sons | Thomas, John & Joseph | Three Star Co | Thuringian Porcelain W | Thuringian Porcelainwo | Tiffany Pottery | Tinet | Tintagel Pottery | Tirschenreuth Porcelai | Tompkinson Bros & Co | Tooth & Ault | Tor Vale Pottery | Torii | Torquay Terra-cotta | Trecarne Pottery | Tregenna Hill Pottery |
| Trelowarren Pottery | Tremar Pottery | Trenle Blake China Co | Trenle China Co. | Trent Tile Co. | Trenton China Co. | Trenton Potteries Co | Tressemanes & Vogt | Triebner, Ens & Eckert | Triptis AG | Troika Pottery | Truro Pottery | Tucker & Hulme | Tucker China Co. | Turner & Tomkinson | Turner, Goddard & Co | U.S Zone Germany | UHL Pottery Company | Unger Schneider & Co./ | Union Ceramique | Union Co-operative Pot | Union Limousine | Union Porcelain Manufa | Union Porcelain Works | Union Porcelainiere | Union Potteries Co | United China & Glass C |
| United China and Glass | United Porcelain Facto | United States Ceramic | United States Encausti | United States Pottery | United States Pottery | Universal Potteries, I | University City Potter | Unterweissbach Porcela | Unwin, Holmes & Worthi | Upchurch Pottery | Upper Franconian Porce | Upper Hanley Pottery C | Upsala-Ekeby Ltd | Uriah Thomas & Co. | Utility Porcelain veb | Utzchneider & Co. | Valentien Pottery | Van Briggle Pottery | Vance/Avon Faience | Veneto Flair | Vernon | Vernon Kilns | Veuve Langlois | Victoria Porcelain Fac | Vienna Art Ceramic Wor | Vienna Ceramic |
| Vienna Porcelain Facto | Vienna Workshops (Wien | Viking Pottery | Viletta | Villeroy & Boch | Vista Alegre | Vodrey & Brothers Pott | Vodrey Pottery | Vohann of California | Voigt & Holand | Voigt Bros/Alfred Voig | Volkmar & Cory | Volkmar Ceramic Co. | Volkmar Kilns | Volkmar Pottery | Von Schierholz's Porce | W & E Corn | W & R Meigh | W F Murray & Co | W Moorcroft Ltd | W T Copeland (& Sons L | W. & G. Harding | W. Adams & Sons Ltd | W. Baker & Co Ltd | W. Davenport & Co | W. Goebel | W. H. Lake & Son (Ltd) |
| W. H. Robinson | W. Mannl Porcelain Fac | W. Schiller & Sons | W. W. Lorenz | W.B. Simpson & Sons | W.H. Grindley & Co. | W.M. Dell Pottery | W.S. George Co | W.T.H Smith Ltd | W.Wood & Co | Wachtersbach Earthenwa | Wade Potteries Ltd | Wade Ulster Ltd | Wade, Heath & Co. Ltd | Wagner & Apel | Waldershof Porcelain F | Waldsassen Porcelain F | Walk Porcelain "Rose" | Walker China Co. | Wallace & Chetwynd Pot | Wallendorf Porcelain F | Walley Pottery | Walrich Pottery | Walter Stephen | Walton Pottery Co. Ltd | Wannopee Pottery Co | Wardle & Co (Ltd) |
| Warner Keffer China Co | Warwick China Co | Watcombe Pottery Co | Wathen & Lichfield | WEDG | Wedgwood & Co | Weil Ceramic Co | Weiss, Kuhnert & Co. | Weller Pottery | Wellington Pottery Co | Wellsville China Co | Wenck & Zitzmann | Wenford Bridge Pottery | West End Pottery Co. | West Highland Pottery | Western Stoneware Co. | Wheatley Pottery Co. | Wheeling Pottery Co | White Pottery | Whitehaven Pottery | Whittaker & Co | Whittaker, Ford & Rile | Wick China Co. | Wick Works AG | Wienerberger Workshop | Wild & Adams (Ltd) | Wild Bros |
| Wildblood & Heath | Wildblood, Heath & Son | Wileman & Co | Wilhelm & Reinhold Bor | Wilhelm Diebener | Wilhelm Gerike & Co. | Wilhelm Jager Porcelai | Wilhelm Kutscher & Co. | Wilkinson & Wardle | Willaim Hulme | Willets Manufacturing | William & James Butter | William & Samuel Edge | William & Thomas Adams | William Adams & Sons L | William Alsagar Adderl | William Alsager Adderl | William Ault | William B. Dalton | William Bailey & Sons | William Barnes | William Bloor | William Bourne (Longto | William Brownfield & S | William Brunt Pottery | William Coenrad Brouwe | William De Morgan |
| William Fishley Hollan | William Gill (& Sons) | William Guerin | William H Lockitt | William Hackwood & Son | William Henry Goss (Lt | William Hudson | William Hulme | William Kent Ltd | William Kirk | William Mason | William Newland | William Ratcliffe | William Ridgway & Co | William Ruscoe | William Smith (& Co) | William Staite Murray | William Taylor | William Wood & Co | William Young & Sons | Wiltshaw & Robinson (L | Winfield Pottery | Winterling Fine Cerami | Winterling Porcelain F | Wood & Baggaley | Wood & Barker Ltd. | Wood & Brownfield |
| Wood & Challinor | Wood & Hawthorne | Wood & Sons | Wood & Sons Ltd | Wood, Rathbone & Co | Wood, Son & Co | Worcester Porcelain | Worcester Royal Porcel | Wurttemberg Porcelain | Yellowsands Pottery/Be | Yeoman Potters | Ynysmedw Pottery | Zacharia Boyle (and Co | Zane Pottery | Zeh, Scherzer & Co | Zenith Pottery Factory | Zettlitz Kaolin Works | Zsolnay | Zurich |