The Machine Gun Corps was the first unit to use Tanks in the British Army. They later became the Tanks Corps.
| Battalion | Theatre | Date in theatre | Notes |
| "A" | France & Flanders | July 1917 | Later became No. 1 Tank Battalion |
| "B" | France & Flanders | July 1917 | Later became No. 2 Tank Battalion |
| "C" | France & Flanders | July 1917 | Later became No. 3 Tank Battalion |
| "D" | France & Flanders | July 1917 | Later became No. 4 Tank Battalion |
| "E" | France & Flanders | July 1917 | Later became No. 5 Tank Battalion |
| Egyptian Expeditionary Force | April 1917 | ||
| "F" | France & Flanders | July 1917 | Later became No. 6 Tank Battalion |
| "G" | France & Flanders | July 1917 | Later became No. 7 Tank Battalion |
| "H" | France & Flanders | September 1917 | Later became No. 8 Tank Battalion |
| "I" | France & Flanders | September 1917 | Later became No. 9 Tank Battalion |