| abstract
| - Key: '~' indicates a manufacturer for whom no known products survive.
* Advance Thresher Co.– later merged with the M. Rumely Co. to create Advance-Rumely Thresher Co.
* Advance-Rumely Thresher Co.
* ~Althaus Ewing & Co.
* ~American Engine Co.
* American-Abell Engine & Thresher Co.
* Ames Iron Works
* ~Atlas Engine Works
* Aultman Co.
* Aultman-Taylor Machinery Co.
* Avery Power Machinery Co.
* Baker, A.D. Co.
* Best Manufacturing Company (merged with Holt to form Caterpillar)
* Birdsall Engine Co.
* Blumentritt Co.
* Buffalo-Pitts Steam Roller Co.
* ~Byron, Jackson Machine Works
* Case, J.I. Co.
* Colean Mfg. Co.
* C & G Cooper & Co's.
* Crowel Mfg. Co.
* ~D. June & Co.
* ~Davidson & Rutledge
* Farquhar, A.B. Co.
* Fishkill Landing Machine Co. (New York Steam Engine Association)
* Frick & Co.
* Gaar Scott & Co.
* Geiser – makers of the Peerless line of steam tractors, later bought out by Emerson-Brantingham
* ~George W. Morris
* ~George Page & Co.
* George White & Sons Co. Ltd., London and Brandon, Canada. ( Photo of a George White engine in the UK )
* Greyhound, Banting Mfg. Co.
* Groton, Charles Perrige & Co.
* ~Hagerstown Steam Engine & Machine Co.
* ~Harrisburg Car Mfg. Co.
* Harrison Machine Works (Jumbo)
* Heilman Machine Works
* ~Holt Manufacturing Company (merged with Best to became Caterpillar Inc.)
* ~Hooven, Owens &Rentscler Co.
* Huber Manufacturing Co.
* Illinois Thresher Co.
* ~Jacob Price
* ~James Means & Co.
* John Goodison Thresher Co. Ltd.
* ~J.M. Ross & Sons
* Keck-Gonnerman Co.
* O.S. Kelly Co.
* Kitten, Ferdinand Foundry Co.
* ~Koppes W.M. & Co.
* Lang & Button Co.
* Lansing Iron Works Co.
* Leader, Marion Mfg. Co.
* MacDonald Thresher Co., Stratford, Ontario, Canada
* McNamer Co., Newark, Ohio
* ~Merritt & Kellogg, Battle Creek, Michigan
* ~Messinger Mfg. Co., Tatamy, Pennsylvania
* Minneapolis Threshing Machine Co., Hopkins, Minn.
* ~Morningstar Mfg. Co. (Napoleon), Napoleon, Ohio
* ~Muncy Traction Engine Co., Muncy, Pennsylvania
* New-Giant, Northwest Thresher Co., Stillwater, Minn.
* New Hamburg Mfg. Co. Ltd., New Hamburg, Ontario, Canada
* Nicholas & Shepard Co., Battle Creek, Michigan
* ~Ohio Engine & Thresher Co., Upper Sandusky, Ohio
* ~Owens, Lane & Duyer Co., Hamilton, Ohio
* Peerless, Geiser Mfg. Co., Waynesboro, Pennsylvania
* Peterson N. C. & Sons, Sarnia, Ontario, Canada
* Port Huron Engine & Thresher Co., Port Huron, Mich.
* Reeves & Co., Columbus, Indiana
* ~Remington Co., Woodburn, Oregon
* Robert-Bell Engine & Thresher Co., Seaforth, Ontario, Canada
* ~Roberts & Dean Co., Sacramento, California
* Robinson & Co., Richmond, Indiana
* M Rumley Co., LaPorte, Indiana – later merged with the Advance Thresher Co. to create Advance-Rumely Thresher Co.
* Russell & Co., Massillon, Ohio
* ~Ryan & McDonald, Waterloo, New York
* Sawyer-Massey & Co. Ltd., Hamilton, Ontario, Canada after merger with Harris to form Massey-Harris later became Massey-Ferguson )
* Scheidler, R. Co., Newark, Ohio
* Stevens, A. W. & Son Co., Auburn, New York
* Stevens, A. W. Co., Marinette, Wisconsin
* Twentieth Century Mfg. Co., Marinette, Wisconsin
* ~Union-Iron Works (Walker), Newark, Ohio
* Upton Mfg. Co., Port Huron, Michigan
* Waterloo Mfg. Co. Ltd., Waterloo, Ontario, Canada later taken over by John Deere & Company
* Waterous Engine Works Co. Ltd., Bradford, Ontario, Canada
* Watertown Engine Company, Watertown, New York
* Westinghouse Co., Schenectady, New York
* Wood Brothers Thresher Co., Des Moines, Iowa
* Wood, S.W. & Son Co., Clyde, New York
* Wood, Taber & Morse Co., Eaton, New York
|
![[RDF Data]](/fct/images/sw-rdf-blue.png)