This is a list of companies that formerly manufactured and / or sold tractors. Some tractor and / or agricultural machinery companies have discontinued manufacturing, or were bought out or merged with other companies, or their company names may have changed.

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• Aaron David Co. (Denmark)
• Abega (Germany)
• Abenaque (USA)
• Acam (Denmark)
• Acason
• Accord (Greece)
• ACME (USA)
• ACO (South Africa)
• Acremaster (Australia)
• Adams-Farnham (USA)
• Adams Husker (USA)
• Adams Sidehill (USA)
• ADN (France)
• Adriatica (Italy)
• Advance (USA) – purchased by Rumely
• Advance-Rumely (USA) – purchased by Allis-Chalmers
• Aecherli (Switzerland)
• AF France (France)
• AGCO (USA) – discontinued
• AGCO-Allis (USA) – renamed AGCO and discontinued; still built in Argentina
• Agcostar (USA) – part of AGCO Corporation formed from McConnell
• Agricultural & General Engineers (AGE) (England, UK)
• Ager (Italy)
• Agil (Austria)
• Agra Farmer (Canada)
• Agracat (USA) – imported
• Agrale-Deutz (Brazil) – just Agrale now
• Agria GmbH (Germany)
• Agrifull (Italy) – purchased by Fiat
• Agrimeca (Argentina)
• Agrimotor (USA)
• Agrip (France)
• Agri-Power (USA)
• AGRISA-Bungartz (Brazil) – became Agrale
• Agritec (Argentina)
• Agromed (Turkey)
• Agromet (Poland)
• A.H. McDonald & Co. (Australia)^[1]
• Ahlborn
• Aion (Australia)
• Ajax (USA)
• Aktivist (Germany)
• Albaugh-Dover Square Turn (USA)
• Albion-Cuthbertson – James A. Cuthbertson (Scotland, UK)
• ALFA (Spain)
• Alfa Romeo (Italy)
• Allaeys
• Alldays & Onions (England, UK)
• Allgaier (Germany)
• Alliance
• Allis-Chalmers (USA) – purchased by AGCO Corporation
• Allmand (USA)
• Almacoa (France)
• Allwork (USA)
• Alpenland (Germany)
• Alpina (Switzerland)
• Alpina-Oekonom (Switzerland)
• Alu-Trac
• Amepic
• American (USA)
• American (American Tractor Corporation) (USA) – purchased by J.I. Case
• American-Abell (Canada)
• American Harvestor (USA)
• American Steel (USA)
• American Tractor (USA)
• Amiot (France)
• Amog (Italy)
• Andrews (USA)
• Andrews-Kinkade (USA)
• Anfibio (Brazil)
• Anglo-Thai New Holland (Thailand)
• Ansaldo-Fossati (Italy)
• Antigo (USA)
• Anton Schlüter München (Germany)
• Apache (Argentina) – now Apache-Solis
• Appleton (USA)
• Arator
• Argo (Italy)
• Armington, A.P. (USA)
• Armstrong Siddeley (England, UK)
• Arnold-Sandberg (USA)
• ASHTZ (Russia)
• Assembled
• Asso
• Astoa (Spain)
• Aston Martin (England, UK)
• Atlas (USA)
• Aulendorf (Germany)
• Aulson (USA)
• Aultman (USA)
• Aultman & Taylor (USA)
• Austin (USA)
• Austin (France / England, UK)
• Austin-Leyland (Turkey) (BMC Sanayi)
• Austrak (Australia)
• Austro (Austria)
• Austro-Pimus (Austria)
• Auto Tractor (USA)
• Automotive (USA)
• Auto-Tiller (USA)
• AutoTrac (Canada)
• Avance (Sweden) – merged into Munktell
• Aveling – Marshall (England, UK)
• Aveling & Porter (England, UK)
• Aveling-Barford (England, UK)
• Avery (USA) – purchased by Minneapolis-Moline
• Avia (Spain)
• Astoa (Spain)
• Agria (Spain)
• Agrimont Group
• Tractors.ae

• B.F. Avery (USA)
• Babcock & Wilcox (Spain)
• Babiole (France)
• Backus (USA)
• Badley (USA)
• Baikonur IMT (Kazakhstan)
• Bailor (USA)
• Baird (USA)
• Bajaj Tempo (India) – divested off and renamed Force Motors
• Baker, A.D. (USA)
• Baldwin (Australia)
• Balilla (Italy)
• Balmar
• Balram (India)
• Bambi
• Bambia
• Bantam (USA)
• Banting Machine Co.
• Barford & Perkins (England, UK)
• Bariole (France?)
• Barreiros (Spain)
• Baskent (Turkey)
• Bates (USA)
• Bates Steel Mule (USA)
• Bauche (France)
• Bautz (Germany)
• Bear (USA)
• Bearcat (USA)
• Beaver (USA)
• Beeman (USA)
• Belazerus (Belarus)
• Bell, Robert (USA)
• Belleville (USA)
• Beltrail (USA)
• Ben (Italy)
• Benz-Sendling (Germany)
• Berliot (France)
• Bernardin (Argentina)
• Bertolini (Italy)
• Besser (USA)
• Best (USA) – purchased by Holt; became Caterpillar Inc.
• Bethlehem (USA)
• Bettinson (United Kingdom) – Ford conversions
• Bi.Som.Trac (France)
• Big Bud (USA)
• Big Bull (USA)
• Big Four (USA)
• Big Lizzie (Australia)
• Bima (France)
• Birrell (USA)
• Bischoff (Germany)
• Bison (France)
• BJR (Spain)
• Blackstone & Co (England, UK)
• Blanc-Plaiche (France?)
• Blaw-Knox (England, UK)
• Blumberg (USA)
• BM Volvo (Sweden) – evolved into the current Valtra, part of AGCO Corporation
• BMB (England, UK) (British Motor Boats)
• BMC (England, UK) – from merger of Austin and Nuffield; later became Leyland, finally Marshall (Tractors)
• Bobbette (USA)
• Boenker (USA)
• Bofors (Sweden)
• Bohrer
• Bolgar (Bulgaria)
• Bolinder (Sweden) – merged with Munktell to become Bolinder-Munktell
• Bolinder-Munktell (Sweden) – merged with Volvo to become BM Volvo / Volvo BM
• Bolte (USA)
• Bori (Slovenia)
• Boring (USA)
• Borsig (Germany)
• BOS Hydro-Trac (Netherlands)
• Boyett (USA)
• Bradley (USA)
• Brandt (France)
• Brasitalia (Brazil)
• Braud (France)
• Braun (Germany)
• Bray (England, UK)
• Bready (USA)
• Breda (Italy)
• Breed (USA)
• Bristol (England, UK)
• British-Canadian (USA)
• British Wallis (United Kingdom)
• Brockway (USA)
• Brons (Netherlands)
• Brown (Australia)
• Brown (USA)
• Bruff – Ford conversions
• Brummer
• Bryan (USA)
• BTG (Germany)
• BTW
• Bubba (Italy)
• Bücher (Switzerland)
• Buckeye (USA)
• Buffalo
• Buffalo-Pitts (USA)
• BUKH (Denmark)
• Bührer (Switzerland)
• Bull (USA)
• Bull Dog (USA)
• Bulldawg
• Bull-Madison (USA)
• Bullock (USA)
• Bulltra
• Bungartz (Germany)
• Bungartz & Peschke (Germany)
• Bunton
• Burn-Oil (USA)
• Burrell (England, UK)
• Busatto (Italy)
• BWS

• C. & G. Cooper (USA)
• C.L. Best (USA)
• C.O.D. (USA)
• Caldwell (Australia) – became Caldwell Vale
• Caldwell Vale (Australia)
• Calmescri (Brazil)
• Calsa (Spain)
• Cameco (USA) – sold to John Deere
• Cameron (USA)
• Camisa
• Campagnolo (Italy)
• Canadian (Canada)
• Canadian-American (Canada / USA)
• CanTRAN
• Canycom
• Carter
• Case Corporation (USA) – purchased by Tenneco, and later merged with International Harvester to become Case IH
• Case New Holland (India)
• Case, J.I (USA) – was purchased by Massey-Harris
• Cassani (Italy)
• CAST (Italy)
• Caterpillar (USA) – sold tractor business to AGCO Corp.
• Cayuga (USA)
• CBT – Companhia Brasileira de Tratores (Brazil)
• CDHL (USA)
• Centaur (USA)
• Centenario
• Century (USA)
• Ceres (France)
• Ceres (India) – brand of International Tractors (Sonalika)
• Certified (USA)
• Chamberlain (Australia) – purchased by Deere & Company
• Champ (Thailand)
• Champion (USA)
• Champion (France)
• Chase (USA, 1908–1918; Canada, 1919-1921)
• Chaseside (England, UK)
• Chery (China) – became Detank, now Zoomlion
• Cherry (Japan)
• CIDEF (Argentina)
• CIMAC (Italy)
• Citroen (France)
• Claeys (Belgium)
• Clarktor
• Clayson (England, UK)
• Clayton & Shuttleworth (England, UK)
• Cleveland Tractor Company/Cletrac (USA) – purchased by the Oliver Corporation in 1944
• CMC (Argentina)
• CNC (France)
• Cobey (USA)
• Cockshutt Plow Company (Canada) – purchased by White Farm Equipment
• Cockshutt Hart-Parr (Canada)
• Codem (The Netherlands)
• Coleman (USA)
• Colpron (Canada) – rebadged Landini's
• Colt (USA)
• Common Sense (USA)
• COMPACT Junior (Austria)
• Conord
• Consolidated (USA)
• Continental (USA)
• Co-op (USA)
• Co-op (National Farm Machinery) (USA)
• Co-op Implements (Canada)
• Cooper
• Corbitt (USA)
• Corliss (USA)
• County (England, UK)
• Crawley Agrimotor (England, UK)
• Crystal Zetor (Czech)
• Csepel (Hungary)
• CTM
• Cultivac
• Cultor (USA)
• Custom (USA)
• Cutherbertson – James A. Cuthbertson (Scotland, UK)

• Daimler (Germany)
• Daimler-Benz (Germany)
• Dammann (USA)
• Danhorse (Denmark)
• Davey Paxman & Co. (England, UK)
• David Bradley (plowman) (USA)
• David Brown Ltd. (England, UK) – purchased by Tenneco and renamed Case
• DECA (Argentina)
• Deering (USA) – merged with other manufacturers to form International Harvester
• Defaut (France)
• Dongfeng (China) – DFAM
• Detank (China) – now Zoomlion
• Detroit (USA)
• Deuliewag (Germany)
• Deutz (Germany) – merged with Fahr
• Deutz-Allis (Germany / USA) – formed when Deutz-Fahr bought Allis-Chalmers; purchased by AGCO and became AGCO-Allis
• Dexheimer (Germany)
• DF (China)
• Diana (Greece)
• DongFangHong (China) – now YTO
• Doppstadt (Germany)
• Dragon (USA)
• Drexler (Austria)
• Dromson (Germany)
• Dufuat
• Durany (Argentina)^[2]
• DUTRA (Hungary)
• DUTRA Steyr (Hungary)

• Eagle (USA)
• Ebro (Spain)
• Ebro-Kubota (Spain)
• Eclipse (USA)
• Edwin Alber
• Eicher (Germany)
• Eicher Goodearth (India) – became just Eicher
• Ekip (Turkey) – became Fatih Traktor
• El Chiquito (Argentina)
• EMCO (USA) – later Power Horse
• Emerson (Canada)
• Emerson-Brantingham (USA)
• Empire (USA)
• Enter (Turkey)
• Enti (The Netherlands)
• Epple-Buxbaum (Austria)
• Erickson (USA)
• Escanuela (Argentina)
• Euro-Trac (India)

• Fageol (USA)
• Fahr (Germany) – merged with Deutz to become Deutz-Fahr
• Falke-trac (Germany)
• Farm Ette (USA)
• Farm System
• Farmall (USA) – by International Harvester
• Farmár (Czech)
• Farmaster (USA)
• Farmcrest (USA)
• Farmer's Union Co-op (USA)
• FarmHandy (USA)
• Farmliner Daedong (Australia) – built in South Korea
• Farmobile (USA)
• Farmwell (England, UK)
• Farquhar, A. B. (USA) – merged into the Oliver Corporation
• Fatsia (England, UK) – formerly B.Welsh agri
• Favias (Spain)
• FBW (Switzerland)
• FengShou (China) – now Jiangling, part of Mahindra
• Ferguson (Ireland)
• Ferguson-Brown (England, UK)
• Fiat OM
• Fiat Someca (France)
• Fiat-Agrifull (Italy)
• Fiatagri (Italy)
• Fiat-Goldstar (South Korea) – now LS-New Holland
• Field Marshall (England, UK) – became Marshall
• Finn Ursus
• FNM (Brazil)
• Foden (England, UK)
• Ford SAF
• Ford (USA) – Ford tractor division bought Sperry-New Holland and became Ford-New Holland, now New Holland, part of CNH Industrial
• Ford-Ferguson (USA)
• Fordson tractor (USA / England, UK) – by Ford
• Fordzon-Putilovec (Russia)
• Forma (Romania)
• Fortschritt (East Germany)
• Foton (China) – now Lovol
• Four Drive (USA) – also known as Fitch Four Drive
• Four Wheel Traction (England, UK)
• Fowler (England, UK)
• Frick (USA)
• Froehlich (USA) – purchased by Deere & Company
• Fundinoza (Argentina)^[3]
• Fujian (China)
• Futian (China) – changed to Foton, now Lovol
• Futian Leopard (China) – now Foton or Foton Leopard
• Futian Oubao (China) – changed to Foton, now Lovol
• Fuyang Tractor (China)
  • Benniu
• FWD Wagner (USA)

• Galloway (USA)
• Gambles Farmcrest (USA)
• Gardner (England or Belgium)
• Garner (England, UK)
• Garrett (USA)
• Garrett (England, UK) – steam tractors and showmen's engines
• Gaar-Scott (USA)
• GBT (USA)
• GEDA (Romania)
• GeDe (The Netherlands)
• Geiser (USA)
• General (USA)
• General (England, UK)
• George (USA)
• Giaguaro (Italy)
• Gibbons & Robinson
• Gibson Mfg. (USA)
• Gilson (Canada)
• Glasgow (England, UK)
• Global (USA)
• GMW (Sweden)
• GoldStar (South Korea) – later LG; now LS
• Graham-Bradley (USA)
• Gray Tractor Manufacturing Co. (USA)
• Greaves (India) – later SAME Greaves
• Greyhound (USA)
• Griffin (USA)
• Grissly
• Grossi (Argentina) – now T&M Grossi
• Grossi Migra (Argentina) – now T&M Grossi
• Gualdi (Italy)
• Güldner (Germany) – later part of Linde
• Gulliver (Italy) – now SEP
• Guthelfer (Spain)

• Haas (USA)
• Hahn-Eclipse (USA)
• Hanomag (Germany)
• Hanomag-Barreiros (Spain)
• Hanzi (China)
• Happy Farmer (USA)
• Harrison Machine Works (Belleville, Illinois, USA)
• Hart-Parr (USA) – merged into the Oliver Farm Equipment Company in 1929; purchased by Oliver Corporation
• Hattat Agricultural Engines (Turkey)^[4]
• Hatz (Germany)
• Hefty (USA)
• Heider (USA)
• HELA (Germany)
• HEMOS
• Herriau
• Hesston (USA) – tractors were part of Fiat; hay equipment and name purchased by AGCO
• Highlander (England, UK) – specialist forestry conversions
• Hindustan (India) – now MGTL
• Hinomoto (Japan) – acquired by Hitachi and renamed Tierra
• Hitachi (Japan)
• Hittner (Croatia)
• HMT (India)
• Hofherr HSCS (Germany)
• Hofherr-Schrantz (Hungary)
• Holder GmbH (Germany)
• Holt Manufacturing Company (USA) – merged with Best to form the Caterpillar Tractor Company
• Homesteader (USA) – Clinton, AR – garden tractors
• Homier Farm-Pro (USA)
• Honda (Japan)
• Richard Hornsby & Sons (England, UK)
• Horwood Bagshaw (Australia)
• Howard (Australia) – tractor, rotavators and rotary tillers
• Howard Farmers (England, UK)
• HOYO (Romania) – assemble Tai Shan
• HSCS (Hungary)
• Huber (USA)
• Hume (USA)
• Hydratiller (USA)
• Hyundai (South Korea)

• IAR (Romania)
• IFA (Germany)
• Illinois (USA)
• IMA (Argentina)
• Imor (Brazil)
• Imperial Machine Co. – established 1902 (Minnesota, USA)
• Imperial (Australia)
• Imperial Super Drive (Canada)
• Indo Farm (India)
• Industrija Motora Rakovica (IMR) (Serbia)
• Intercontinental (USA)
• International Harvester (Australia)
• International Harvester (USA) – agriculture division sold to Tenneco and merged with Case to form Case IH in 1985
• International TOE (Turkey) – licensed IH
• Is Bora (Turkey) – Shibauara
• Ishikawajima-Harima (Japan) – now Shibaura
• Isoto (Turkey) – license Tuber
• ITC (USA)
• Ivel (England, UK) – invented by Dan Albone

• J & H Howard
• Jackson (USA)
• JDS (Germany)
  • Eicher
    • Valtra Eicher
• Jeep (USA)
• Jela
• Jelbart (Australia)
• Jiangling (China)
• John Blue (USA)
• John Deere Hattat (Turkey)
• John Deere Lanz (Germany) – formerly Heinrich Lanz AG, originally Heinrich Lanz Company
• Johnston (Sweden / France)
• Juling (China)
• Jumbo (USA)
• June (Sweden)
• JWD (United Kingdom)

• Kaelble (Germany)
• Karl Blank (Germany)
• KBZ (Russia)
• Keck-Gonnerman
• Kelkel (Germany)
• Kelly & Lewis (Australia)
• Kelpie (England, UK)
• Kemna
• KHD (Austria)
• Kínai
• Kirloskar (India)
• Kirov Plant (Russia)
• Kirschmann (USA)
• Kitten (USA)
• Kiva (France)
• Knudson (USA)
• Kodiak (USA)
• Kögel (Germany)
• Kolomenec (Russia)
• Komatsu (Japan)
• Komatsu International (Japan)
• Kommunar (USSR)
• Komnick (Germany)
• Koni
• Köpfli (Switzerland)
• Koyker
• Kramer (Germany) – merged with Neuson, who then merged with Wacker AG
• KTMCO (Iran / Kurdistan) – subsidiary of ITMCO
• Krasser (Austria)
• Kuhnhausen (Germany)
• Kullervo (Finland)
• Kullmo (Sweden)
• Kulmus (Germany)
• Kumiai (Japan)
• Kunow (USA)

• L&T – John Deere (India) – joint venture, bought out by Deere & Company
• Labourier (France)
• Lamborghini (Italy) — tractors were the original product of the current Lamborghini supercar company
• Landhope (Japan) – by Iseki
• Landleader (Japan) – by Iseki
• LandTrac (USA) – by Long
• LANZ (Germany) – original brand name of Heinrich Lanz AG, bought out in 1956 by John Deere owner Deere & Company
• Latil (France)
• Lauer (Germany?)
• Lauson (USA)
• Le Percheron (France)
• Le Pratique (France)
• Le Robuste (France)
• Legras (France)
• Lehr's Big Boy (USA)
• Lely Multipower (USA)
• Lely (The Netherlands)
• Lenar
• Leo Rumely (USA)
• LeRoi (USA)
• LESA (Italy)
• LeTourneau (USA)
• Leyland (England, UK) – later Marshall
• LG (South Korea) – now LS
• LG-Fiat (South Korea) – now LS-New Holland
• LG Montana (USA) – now Montana
• LG-New Holland (South Korea) – now LS-New Holland
• LHB (Germany)
• Liaz (Czech)
• Liberty (USA)
• Lightforce Deluxe
• Lightforce Tractore
• Linn maker of the Linn tractor – Republic Motor Truck Company (USA)
• Lioness (England, UK)
• Lister (England, UK)
• Li-Trac (Germany)
• Little Giant (USA)
• Loiseau (France)
• Loko-Mobil
• Long (USA)
• LongAgri (USA)
• LS Mtron (South Korea)
• LTS (Germany)
• Luoyang Fiat (China)
• LUX-TRAC (Luxembourg)
• Luzhong (China)

• M.R.S. (USA)
• MacLaren
• Macrosa (Argentina)
• Madson (USA)
• Mahindra & Manhindra (India)
• Malkotsis (Greece)
• Malcus (Sweden)
• Malves (Brazil)
• Malyshev Factory (USSR)
• MAN (Germany)
• Mancini (Argentina)
• Mann's Patent Steam Cart and Wagon Company (England, UK)
• MAP (France)
• Marshall, Sons & Co. (England, UK) – builders of Field Marshall brand
• Marshall Tractors (England, UK) – formerly Leyland tractors
• Martin (Germany)
• Martin Diesel (Slovak)
• Massey-Harris (Canada)
• Massey-Harris-Ferguson (Canada)
• Matbro (England, UK)
• Mathis-Moline (France)
• Maverick (USA)
• Maxion (Brazil) – backhoes still built using name
• Maxitrac
• McConnell (Canada) – sold to AGCO Corporation, later AgcoStar
• McCormick (USA) – merged with others to form International Harvester
• McCormick-Deering (USA) – by International Harvester
• McCormick TOE (Turkey) – licensed IH
• McDonald (Australia)
• McKee Ebro (Canada)
• McLaren (England, UK) – see J&H McLaren & Co.
• MDW-Fortschritt (East Germany)
• Mecavia (France)
• Medved (Russia)
• MeMo (USA)
• E. Meili Traktorenfabrik (Switzerland)
• Mercer (USA)
• Metis (Slovak)
• MIAG (Germany)
• Millennium (USA)
• Minneapolis (USA) – merged with Moline Plow to form Minneapolis-Moline
• Minneapolis-Moline (USA) – purchased by White Farm Equipment
• Minneapolis-Moline Türk Traktör (Turkey)
• Minnesota (USA)
• Moffett (Ireland)
• Mogul (USA)
• Moline Plow Company (USA) – merged with Minneapolis to form Minneapolis-Moline
• Monarch (USA) – purchased by Allis-Chalmers
• Montana (USA)
• Montana LS (Brazil)
• Montana Solis (Brazil)
• Morris-Leyland (Turkey)
• Motocultores Pasquali (Spain)
• Motoyuyera (Argentina)
• Motrac Werke AG. 1937–1969 (Switzerland)
• Motransa (Spain)
• Mountain State (USA)
• Mt. Super (Slovakia)
• MTW (Germany) – Ritscher
• Muir-Hill (England, UK)
• Müller (Brazil)
• Munktell (Sweden) – merged with Bolinder to form Bolinder-Munktell
• MVM (Russia)
• MWM (Motoren Werke Mannheim AG) (Germany)
• Myth-Holm (England, UK) – formerly Muir-Hill

• Nallahay
• NanYue (China)
• Naughton (Australia)
• Nedalo (Netherlands) – Ford conversions
• Nelson (USA)
• New Holland Agriculture (USA)
• New Holland Tractors (India)
• Newman (England, UK)
• Nibbi (Italy)
• Nichols & Shepherd (USA) – merged to form Oliver Farm Equipment Company in 1929
• Nordtrak (Germany)
• Normag (Germany)
• North Land (USA)
• Northrop (England, UK)
• Northwest (USA)
• Nuffield (England, UK) – later Leyland, and then Marshall Tractors
• Nuffield Morris (Turkey)

• O&K / Orenstein and Koppel (Germany)
• Oliver (USA)
  • Oliver Farm Equipment Company (USA)
  • Oliver Corporation (USA) – purchased by White Farm Equipment
  • Oliver Cletrac (USA)
  • Oliver Hart-Parr (USA)
• OM (France)
• OMP (Italy)
• One Man Motor Plow (Canada)
• Orsi (Italy)
• Oak Tree Appliances (OTA) (England, UK)
• OTO (Odero Terni Orlando) (Italy)
• Ottawa (USA)
• OUTZ

• PAL (USA)
• Panda
• Panther (India)
• Panzer (USA)
• Paramount (USA)
• Parca
• Parrett (USA)
• Pasco (Brazil)
• Pavesi (Italy)
• Pavesi-Tolotti (Italy)
• Peerless (USA)
• Perkis (Turkey) – based on Ursus
• Perl (Austria)
• Petropoulos (Greece)
• PGS (Italy)
• Phillips (Australia)
• Phoenix (Australia)
• Pillman (South Africa)
• Pioneer (China)
• Planet, Jr (USA)
• Platten (Germany)
• Plymouth (USA) – became Silver King
• PMA (Algeria) – now Cirta
• Pöhl (Germany)
• Pollack (Argentina)
• Polytrac (Switzerland)
• Porsche (Germany)
• Port Huron (USA)
• Power Track
• Power-Horse (USA)
• Power King (USA)
• President (England, UK) – designed by BMB (British Motor Boats)
• Price (USA)
• Primul (USSR)
• Primus (Germany)
• Profintern (USSR)
• PTZ (Kazhakistan)
• Punjab (India)

• Quaker Mule (USA)
• Quattrino
• Quincy (USA)

• RÁBA (Hungary)
  • RÁBA-Steiger
• Randi (Italy)
• Ransomes, Sims & Jefferies (England, UK)
• Rapid (Spain)
• RATAR (Yugoslavia)
• Rayes (USA)
• Raygo Wagner (USA)
• Record (Greece)
• Red Star
• Reeves (USA)
• Rein Drive (Canada)
• Remington (USA)
• Renault Agri (France) – purchased by Claas in 2003
• Renault Sonalika International (RSI) – (Mauritius / India)
• Rhino International (USA)
• Rice (USA)
• Richard Continental (France)
• Richter (Australia)
• RIMAS (Denmark) – Ford conversions
• RIP (France)
• Rite (USA)
• Ritscher (Germany)
• Roadless (England, UK)
• Robey (England, UK) – steam tractors
• Rock Island (USA) – purchased Heider, was then purchased by Case
• Rockol (USA)
• Rogers (USA)
• Rogowski (Brazil)
• Rohff (France)
• Röhr (Germany)
• ROLA (Sweden)
• Rollo (Denmark)
• Rombel (Romania)
• Rome (USA)
• Ronaldson Tippett (Australia)
• Roux
• Rotania (Argentina)
• Roths Industries (USA)
• Royal (Germany)
• Rubine (Italy)
• Rumely (USA)
• Ruris (Romania)
• Ruston (England, UK)
• Ruslan (Argentina)
• Russell & Company (Steam Tractor) - American(USA)
• Ruston & Hornsby (England, UK)
• Ruston, Proctor and Company (England, UK) – steam tractors
• RYCSA (Argentina)

• S.A.M.A. Renault (Spain)
• S.W.Wood (USA)
• Sabatier (France)
• SAME (Italy) – taken over by Deutz-Fahr
• SAME Greaves (India) – a joint venture, wholly purchased by Same Deutz-Fahr
• Samson (USA)
• Sandusky (USA)
• Santa Matilde (Brazil)
• Satoh (Japan) – merged with Mitsubishi
• Saukville (USA)
• Saunderson (England, UK)
• SAVA-Nuffield (Spain)
• Savatrac (Iran)
• Scemia (France)
• Schilter (Switzerland)
• Schindler (Germany)
• Schluter (Germany)
• Schneider
• Schramm (USA)
• Scott (USA)
• Scientific Farming Machinery Company (USA)
• Selene (Italy)
• Sepa (Italy)
• Shakti (India)
• Shaw (USA)
• Shire
• Siaco (Italy)
• SIFT (France)
• Silvatec (Denmark)
• Silver King (USA)
• SIMAR-Bodenfräse (Switzerland)
• Simpac Trak (Italy)
• Simpson Jumbo (USA)
• Sirio (Italy)
• Škoda (Czech)
• SLC – John Deere (Brazil) – a joint venture, wholly purchased by Deere & Company
• SM
• Smallholder (England, UK)
• Société Française de Vierzon (France) – purchased by Case
• Solis Brasil (Brazil) – now just Solis
• Someca (France) – purchased by Fiat
• Sonalika International (India)
• Speedy
• Squire (Australia)
• Steiger (USA) – purchased by Case
• Steinbock (Austria)
• Sterling (Canada)
• Steyr-Nigeria (Nigeria)
• Store (Yugoslavia)
• Stotz (Belgium)
• Strong
• Sultan (Turkey)
• Sunshine (Australia)
• Sunshine (Kubota) (Japan)
• Sunshine Massey Harris (Scotland, UK / Australia)
• Superson
• Sutcliff
• Svedala (Sweden)
• Svoboda (Czech)
• Swed-Trac (Sweden)
• Standard (India)

• TAISSA (Spain)
• Takra (Finland)
• TAS (USA / Germany) – also sold as MeMo
• Tasker
• Taylor (USA)
• Terra Power
• Terratrac (USA) – crawler tractors built by American Tractor Company; purchased by J.I. Case
• TESA (Spain)
• Thieman (USA)
• Thomas-Bilt (USA) – renamed Tuff-Bilt
• Thorobred (USA)
• TianTuo (China)
• Tidaholms (Sweden)
• Tiger (USA)
• Tiger (China)
• Tiger (Ranger) (Japan)
• TigerTrac (USA)
• Tirador (Argentina)
• Titan (USA)
• Titan (Steiger) (USA)
• Titano (Italy)
• Titus (Germany)
• TMO (Brazil)
• Tobatta (Brazil)
• Toft (Australia)
• Tolpar (Russia)
• Tom Moore (USA)
• Toma Vinković (Croatia) – now TTB
• Toos (Iran)
• Torpedo (Croatia)
• Torpedo Deutz (Croatia)
• Tortone (Argentina)
• TracZa (Argentina)
• Track Marshall (England, UK)
• trac-technik (Germany)
• Tractocoop (France)
• Tractomade (Argentina) – licensed by Pauny ^{[permanent dead link]}
  • TMZ Zanello (Argentina)
  • Zanello (Tractomade)
• Tractor Supply Co. (USA)
• Tractormobile (USA)
• Tratoretto (Brazil)
• Tractors and Farm Equipment limited [TAFE] (India)
• Tractorul UTB (Romania) – in receivership in 2007
  • Titan
  • Universal UTB
• Triunfo (Argentina)
• Trojan (USA)
• Trusty (England, UK)
• TTB (Croatia) – now Prima and Hittner
• TUR (Poland)
• Turf Boss
• TurkFiat (Turkey) – now New Holland
• Turner (England, UK)
• Twin City tractors (USA) – merged to become Minneapolis-Moline
• Twister (USA)

• U.T.B. (Romania) – now Universal UTB
• Uncle Sam (USA)
• Unigraf Lupo (Argentina)^[5]
• United (USA)
• UniTrak (Germany)
• Universal (USA) – built in Ohio
• UPD
• Upton (Australia)
• Ursus Hellas (Greece)
• Ursus Italtractor (Italy)
• Urtrak (Germany)
• Utos (Romania)
• Uzel (Turkey) ()

• Valmet (Finland) – now Valtra
• Valor (France)
• Valtra Valmet (Finland) – now Valtra
• Valtrac (France)
• Vandezande (Belgium)
• Vanguard (USA)
• Variotrac (France)
• Vassalli (Argentina)
• Vellino (Spain)
• Vendeuvre (France) – purchased by Allis-Chalmers
• Verion (Argentina)
• Versatile (Canada) – purchased by Ford, now owned by RostSelMash
• Vevey tractors (Switzerland)
• VeWeMa (Germany)
• Vick (Brazil)
• Victor (Japan)
• Vierzon (France) – purchased by Case
• Vittorio Cantatore (Italy)
• Vladimir Factory (Russia)
• Volgograd Tractor Factory (Russia)
• Volvo (Sweden) – merged with Bolinder Munktells, now Valtra
• Volvo BM (Sweden) – now Volvo Construction Equipment
• Volvo BM Valmet (Harvesters) (Sweden) – now Valtra

• WACO (Austria)
• Wagner (USA)
• Wallis (USA) – purchased by Massey-Harris
• Wallis & Stevens (USA)
• Wallis & Steevens (England, UK) – steam tractor (note odd spelling of name)
• Waltanna (Australia)
• Walter Barrett (USA)
• Wards (USA)
• Warrior (Italy)
• Waterloo Boy (USA) – purchased by John Deere owner Deere & Company
• Waterloo (Canada)
• Weber (USA)
• Webfoot (USA)
• Welte
• Werner (Germany)
• Wesseler (Germany)
• Western (USA)
• Wheel Ox (USA)
• White (USA) – purchased by AGCO Corporation
• White Oliver (USA)
• Whiting-Bull (USA)
• Wikov (Czech / USA) – certain products now manufactured by Wisconsin Engineering ()
• WildCat (USA)
• Williames (Australia)
• Winget (Australia)
• Winget (United Kingdom) – noted for site dumpers and plant (was part of Babcock & Wilcox for a time)
• Wisconsin (USA)
• Wm Allchin (England, UK)
• Wood Brothers (USA)
• Woods & Copeland (USA) – purchased by Rome
• Woody
• Worthington Mower Company (USA)
• Wright (South Africa)

• Xiamen Xiagong Group (China)
  • Sahm
  • Xiagong
• Xinhu (China)

• Yankee (USA)
• Yewers (Australia)

• Zadrugar (Yugoslavia)
• Zanello (Argentina)
• Zanello (Maquinarias) (Argentina) – now Zanello (CMZ)
• Zanello (Pauny) (Argentina) – now Pauny Rino
• Zaporozhec (Ukraine)
• Zebra (USA)
• Zetor (Czech) – with Zetor Crystal built in Poland by Ursus
• ZTS (Slovak)

• List of current tractor manufacturers
• List of traction engine and steam tractor manufacturers
• List of tractors built by other companies
• Agricultural engineering
• List of agricultural machinery
• Mechanised agriculture