This is a incomplete list of tractor development over time. The list is to include notable models by year of introduction, as an index to other articles. (these were not always a commercial success)
| Year of introduction | Model name | Manufacturer | Country of origin | Significance | class="unsortable"; Image | Notes |
|---|---|---|---|---|---|---|
| 1892 | Froelich tractor | John Froelich | America | credited as 1st Internal combustion engine tractor by some. | 
|
Froelich went on to found the Waterloo Gasoline Engine Company, which became John Deere & Co.s tractor division. |
| 1908 | Marshall 60 hp | Marshall, Sons & Co. | England | Move to engine power from steam |
|
Designed to compete with US-built machines for Export |
| 1910 | Saunderson Universal Model G | Saunderson | England | Royal patronage, one ordered by King George V in 1916 |  |
Early British model |
| 1920s | Fordson Model F | Fordson | USA & Ireland | Designed for mass production |  |
Pioneered Unit construction |
| 1935 | Ferguson-Brown | David Brown / Harry Ferguson JV | British | Innovative light design with Ferguson linkage system |  |
Ferguson JV agreement with Ford |
| 1939 | Ford-Ferguson | Ford / Harry Ferguson JV | American | Light mass produced with PTO & Linkage |  |
evolution from the Ferguson-Brown Model A]] |
| 1950s | Ferguson TE20 | Ferguson | Britain | Harry Fergusons reply to split with Ford |  |
Similar to Ford N series |
| 1963 | County Sea Horse | County | British | Floating tractor |  |
Set a record by crossing the English channel |
| 1977 | Versatile Bi-directional | Versatile | Canada | An innovative design were the driver could operate it back to front for use as a loader |
|
Some similar European designs |
| 1990 | JCB Fastrac Range | JCB | Britain | An high speed tractor design |  |
More versatile as a tractor than the German Unimog |