The following alphabetical list includes known firms that have operated in the East Liverpool area since 1839.

Acme Artware Corp. (1941-ca. 1945)
Acme Craftware, Inc. (ca. 1945-1970)
Adamant Porcelain Co. (ca. 1909-ca. 1924)
Agner Foutts and Co. (1863-1883)
Agner and Gaston (1883-1884)
Alcock and Shields (1882)
American Ceramic Art Co. (1902)
American Chinaware Corp. (1929-1931)
American Decorating Co. (1923)
American Mug and Stein (2009 - present)
American Porcelain Co. (1914-1932)
American Vitrified Products Co. (ca. 1910-ca. 1968)
Anchor-Hocking, Inc. (1972-1982)
Anderson, Curry and Co. (1878)
Anderson Porcelain Co. (1903-1915)
Ardyth Arts (ca. 1945-ca. 1961)
Artistic China Co. (undetermined)
Babcock and Wilcox (ca. 1921-ca. 1930)
Baggott Brothers (1853-ca. 1897)
Ball and Morris (1846-1856)
Barnhart Pottery Co. (ca. 1955)
James H. Baum [decorator 1883-1884](1888-1896)
A. B. Beck (1879)
Belman Pottery Co. (undetermined)
Belmonte China (ca. 1952)
Bel-Mar (1950)
BelMar China Co. (1912)
Bel-Mar Pottery Co. (ca.1932-1935)
James Bennett (1839-1841)
Bennett Brothers (1841-1844)
Benty Brothers [Oakwood Art Pottery](1900-1906)
Bisc Novelty Manufacturing Co. (1917-1919)
A. C. Blair China Studios (1945-1960)
William Bloor (1860-1862)
John Boch (1907-ca. 1919)
Boch and Metsch Porcelain Co. (ca. 1919-undetermined)
Emanuel Booth (1873-1876)
Booth Brothers (1854-ca. 1865)
Boulton and Co. (1882-1883)
Brunt and Bloor (1848-1853)
Brunt, Bloor, Martin and Co.(1875-1882)
G. F. Brunt Porcelain Co. (ca. 1900-1914)
Henry Brunt and Son (undetermined)
Wm. Brunt and Bros. (1856-1859)
Wm. Brunt and Co. (ca. 1885)
Wm. Brunt Jr. and Co. (1860-1877)
Wm. Brunt Pottery Co. (1892-1911)
Wm. Brunt Sr. 1859 (undetermined)
Wm. Brunt Sr. and Son [Great Western] (ca. 1868-1874)
Wm. Brunt Son and Co. (1878-1892)
Bulger, Starkey and Co. (1877)
Bulger, Worcester and Co. (1877-1880)
Bullock and Anderson (1850)
Bullock and Garner (1847)
W. C. Bunting Co. (1947-1914)
Burford Bros. Pottery Co. (1879-1904)
Burgess and Co. (1890-1893)
Burgess, Webster and Viney (1867-1869)
William Burton (undetermined)
Burton and Williams (ca. 1901)
George Buxton (1884-1891)
California Pottery Co. (1898)
Cameo China Co. (ca. 1949-ca. 1952)
Cardinal Stoneware Co., Inc. (ca. 1975)
Cartwright Bros. Company (1896-1927)
Cartwright Bros. Pottery Co. (1880-1896)
Ceramic Specialties Co. (ca. 1933-ca. 1944)
Chester China Co. (1920)
Chic Pottery Co. (1937-1945)
China and Vitreous Products Corp. (undetermined)
William Colclough (ca. 1850/1879-1881)
The Colonial Co. (1903-1929)
Columbia China Co. (1910)
Continental Kilns (1944-ca. 1953)
Albert Corns (ca.1898)
Corns China Co. (1928-1932)
Craven Art Pottery Co. (1905-ca. 1910)
F. R. Cross and Co. (1884)
Croxall and Cartwright (1856-1888)
Croxall Brothers (1844-1852)
J. W. Croxall and Sons (1888-1898)
Croxall Pottery Co. (1898-1914)
Curby, Starkey and Co. (1875)
Davidson - Stevenson Porcelain Co. (1914-1932)
Joseph Dennis (1875-1886)
Dennis and Outrim (1879-1880)
Douds and Barnes (ca. 1851)
Douds and Foutts (ca. 1872)
Douds and Moore (1866)
Douds and Sebring (1857-1860)
Douds and Welch (1869)
Dovey, Webster and Co. (1848)
Dresden Pottery Co. (1925-1927)
East End China Co. (1908-1909)
East End Pottery Co. (1894-1901/1903-1907)
East Liverpool Art China (1898-ca. 1908)
East Liverpool China Co. (1947-present)
East Liverpool China and Enamel Co. (ca. 1910)
East Liverpool Crockery Co. (ca. 1911)
East Liverpool Electric Porcelain Co. (1903-ca. 1918)
East Liverpool Encaustic Tile Co. (1878)
East Liverpool Pottery Co. (1894-1901)
East Liverpool Potteries Co. (1901-1907[1933])
East Liverpool Railway Co.
East Liverpool Sanitary Manufacturing Co. (1913-undetermined)
N. J. Eisenhuth Novelty Works (1903)
The Empire Company (ca. 1850)
Enterprise Art China Company (1896-undetermined)
"Etruria works"
Ferro (1954 - 2000?)
Hermann Feustal (ca. 1900)
Fiesta Tableware Company (formerly HLC) (2021 - present)
Flentke, Harrison and Co. (1877-1884)
William Flentke (1882-1886)
Flentke, Worchester and Co. (1874-1877)
Foster and Garner (ca. 1856-1859)
Foster and Rigby (ca. 1866-1868)
Foster and Rowley (1860-ca. 1866)
Fowler and O'Connor (1871-1872)
E. Fox and Co. (1880)
Frederick, Shenkle, Allen and Co. (1881-1888)
French China Co. (1898-1929)
French - Saxon China Co. (1935-1964)
Fritz, McClure and Co. (1869)
Gamble and Surles (ca. 1878)
General Porcelain Co. (ca. 1912-ca. 1916)
George Garner (ca. 1846)
Ephraim Gaston (1881)
Globe Pottery Co. (1888-1901/1907-1912)
Godwin and Flentke (1878-1882)
John Goodwin (1843-1853/1863-1865)
John Goodwin and Sons (1872-1875)
Goodwin Brothers Pottery Company (1875-1893)
Goodwin Pottery Co. (1893-1913)
Goodwin Pottery Co. ([different] 1936-1940)
Gotham and Locke and Co. (1903)
Thomas Haden (1874-1888)
Hayden and Lycett (1879)
Hall China Co. (1903-2021)
Benjamin Harker (1840-1846)
Harker, Taylor and Co. (1846-1851)
Geo. S. Harker and Co. (1854-1890)
Harker Pottery Co. (1890-1972)
Harker and Smith (1853-1855)
Benjamin Harker and Sons [Wedgewood](1877-1881)
Harker, Thompson and Co. (1851-1854)
Richard Harrison and Co. (ca. 1853)
Harvey, Green and Co. (1851-1853)
Henderson Pottery (ca. 1849-ca. 1854)
William Higginson (ca. 1897)
Hill, Brunt and Co. (1867-ca. 1869)
Hilton China Co. (ca. 1915)
Horton Specialty Co. (ca. 1932-1938)
Hoyt China Co. (1919-undetermined)
Hoyt Brothers China Co. (1919)
George F. Humrickhouse (1877-ca. 1883)
Humrickhouse and Gallagher (1881)

Jackson Bros. (1868-1870)
Johnson China Co. (1931-1937)
Jones Pottery (1867-1880)
Kass China Co. (ca. 1935-1972)
Kenilworth Tile Co. (1921)
Keramos Pottery Co. (ca. 1921)
Keystone China Co. (ca. 1946-1954)
Edwin M. Knowles China Co. (1900-1963)
Knowles and Harvey (1854-ca. 1865)
Isaac Knowles (ca. 1865-1870)
Knowles, Taylor and Knowles (1870-1929)
Lamond and Jones (1870)
Larkin Bros. (ca. 1848-1861)
Larkins, Newell and Co. (1853)
Laughlin Bros. (1873-1877)
Homer Laughlin (1877-1896)
Homer Laughlin China Co. (1896-2021)
Less Work Manufacturing Co. (1914)
The Limoges China Co. (1900-1949)
The American Limoges China Co. (1949-1955)
Louthan Manufacturing Co. (1901-1954 see Ferro)
Manley and Cartwright (1864-1880)
Manley, Surles and Gamble (1881)
Manton and Albright (ca. 1892)
A. J. Marks and Co. (1866-1871)
Mayer and Geon (1865)
Mayer, Ross and McDevitt (1864)
William McCullough (undetermined)
McDevitt, Cochran and Co. (1868-1870)
McDevitt, Moore and Curby (1872-1874)
McDevitt and Moore (1874-ca. 1900)
McDonald Decorating Shop (ca. 1945)
McGillvray and Moore (1855-1857)
McGillvray and Orr (1855)
McNicol, Burton and Co. (1869-1892)
D. E. McNicol Pottery Co. (1892-1954)
T. A. McNicol Pottery Co. (ca. 1913-1929)
McNicol-Smith Co. (1889-1911)
McNicol-Corns China Co. (1912-1928)
McQuillkan and Curry Porcelain Co. (ca. 1905)
Meric Art Studios (ca. 1931-1939)
Metsch Refractories Co. (1922-present)
Miles and McClain (1888)
Miles Porcelain Co. (1923)
T. V. Milligan Porcelain Co. (1915-1929)
Monarch Dinnerware Co. (1937-1972)
George Monroe and Co. (1880)
Morley and Company (1878-1884)
George Morley and Son (1884-1891)
Morley, Godwin and Co. (1874-1878)
Morley, Godwin and Flentke (1855-1874)
Mountford and Co. (1891-1897)
George C. Murphy Pottery Co. (1897-1901/1903-1904)
National China Co. (1899-1911)
Nentwick and Larkin (ca. 1886)
Newell, Larkins and Co. (1848-ca.1852)
Novelty Clay Forming Co. (ca. 1907-ca. 1918)
Oakwood China Co. (1912-ca. 1921)
Oakwood Pottery Co. (1900)
Edward O'Connor (ca. 1885-ca. 1894)
Ohio Brass Co. (ca. 1966-present)
Ohio Porcelain Co. (ca. 1908)
Oliver China Co. (1899-ca. 1908)
Olnhausen China Co. (1902)
Owen-Wilson Porcelain Co. (1927)
Pan-American Electric Porcelain Co. (1901)
John Patterson and Sons Pottery Co. (1882-1900)
Patterson Bros. Co. (1900-1907)
Patterson Refractories Co. (ca. 1930-1934)
Patterson, Russell and Co. (1882)
Peach Porcelain Co. (1931)
The Pearl China and Pottery Co. (1931-1960 as a pottery, 2009 as a retail store)
J. R. Phillip (1853)
R. G. Phillips (1852)
Pines Pottery Co. (ca. 1939-1953)
Pioneer Pottery Co. [Wellsville](1896-ca. 1900)
Pioneer Pottery Co. (1935-present)
Pittsburgh Tile Manufacturing Co. (1912-ca. 1922)
Porcelain Manufacturing Co. (1928)
Potter's Co-operative Co. (1882-1925)
Purinton Pottery Co. (1937-1942)
Reston Art Ware Co. (1928-ca. 1933)
T. Rigby and Co. (1868-187Salt and Mear (1842-ca. 1852/1856-ca. 1860)
Royal China Co. (1933-1986)
Sants and Barlow (1878)
Saxon China Co. (1911-1929)
Henry Schmidt (1901)
Ralph Scragg (ca. 1879-ca. 1887)
Scores China Co. (ca. 1907)
Sebring Pottery Co. (1887-ca. 1940)
E. H. Sebring China Co. (1908-1929)
Sevres China Co. (1900-1908)
Shields and Wilson (1882)
Simms and Ferguson (1872)
Simms and Starkey (1866-1868)
N. M. Simms and Co. (1868-1874)
Sinclair Art Pottery (1903-ca. 1905)
Smith, Foster and Co. (1857)
Smith-Phillips China Co. (1901-1929)
Smith, Plunkett and McClure (1881)
Specialty Porcelain Co. (ca. 1910-1949)
Sprucevale Pottery (ca. 1852-1859)
Standard Porcelain Co. (1923)
The Standard Pottery Co. (1886-1927)
Starkey and Ourby (ca. 1870-1872)
John F. Steele (1878-1891)
Sterling China Co. (1900-ca. 1902)
Sterling China Co. [Wellsville, Ohio](1917-circa 2006)
Taylor, Lee and Smith (1899-1901)
Taylor, Smith and Taylor (1901-1972)
R. Thomas and Sons (1873-1957)
Thomas China Co. (1900-1905)
C. C. Thompson and Co. (1870-1889)
C. C. Thompson Pottery Co. (1889-1938)
Thompson and Herbert (1868-1870)
Trenle Blake China Co. (ca. 1942-1966)
Trenle China Co. (1909-ca. 1942)
Trenle Porcelain Co. (1923)
Trentvale Pottery (ca. 1901)
Union Cooperative Pottery Co. (1894-1900)
Union Potteries Co. (1900-1905)
United China Co. (ca. 1921)
United States Decorating Co. (1922)
United States Pottery Co. (1898-1901 [1932])
Usona Art Pottery (ca. 1932-ca.1952)
A. Viney and Co. (1870)
Viney, Thompson and Co. (ca. 1868-1869)
Viney, Webster and Co. (1869-1872)
Vitreous Novelty Works (1901)
Vodrey Brothers (1857-ca. 1864)
Vodrey and Brother Pottery Co.(ca. 1864-1896)
Vodrey Pottery Co. (1896-1928)
Wallace Brothers (1856-ca. 1861)
Wallace and Chetwynd (1882-1901)
Wally Brothers [and Co.](1853)
Warner-Keffer China Co. (1908-1912)
A. Webster and Co. (1857-ca. 1864)
Elijah Webster (1858-ca. 1861)
Webster, Campbell and Co. (1881-1888)
Webster and Phillips (ca. 1848-1850)
Joseph Wells (ca. 1826-ca.1856)
Wellsville China Co. (1902-1959)
Wellsville Novelty Pottery Co. (undetermined)
West End Pottery Co. (1893-1938)
West, Hardwick and Co. (1867-1883)
White Brothers China (20th Century)
Henry Willot and Co. (1870-1872)
Woodward and Vodrey (1847-1848)
Woodward, Vodrey and Booth (1848)
Woodward, Blakely and Co. (1848-1857)
Worchester, Bulger and Son (1872-1884)
Worcester and Co. (1880-1882)
World Pottery and China Co. (ca. 1921-ca. 1934)
John Wyllie and Son (1874-1893)

William C. Gates, Jr., originally compiled the above list; it is maintained by the staff of MoC. Gates is the author of two books: The City of Hills and Kilns: Life and Work in East Liverpool, Ohio and, with Dana E. Ormerod, The East Liverpool, Ohio Pottery District: Identification of Manufacturers and Marks.