| 1910 | C 35 (I 65) | Completed |
| 1910 | C 36 (I 66) | Completed |
| 1915 | E 53 | Laid Down |
| 1915 | E 54 | Laid Down |
| 1916 | E 41 | Completed |
| 1916 | W 3 | Completed |
| 1917 | WWI | German 'unrestricted' submarine warfare begins. |
| 1917 | E 48 | Completed |
| 1917 | K 2 | Completed |
| 1917 | K 6 | Completed |
| 1917 | K 7 | Completed |
| 1917 | K 11 | Completed |
| 1918 | E 50 | Mined and sunk in the North sea |
| 1942 | Thunderbolt (N 25) | HMS Thunderbolt torpedoes and sinks the Italian merchant Absirtea about 6 nautical miles off Cape Dukato, Greece. |
| 1943 | Turbulent (N 98) | HMS Turbulent torpedoes and sinks the Italian merchant Pozzuoli off Cape San Vito, Sicily, Italy. |
| 1943 | Una (N 87) | HMS Una damages two sailing vessels with gunfire in the Gulf of Hammamet, Tunisia. Una had to break off the attack due to gunfire from shore batteries |
| 1943 | Subtle (P 251) | Laid Down |
| 1945 | Spark (P 236) | HMS Spark sinks a Japanese coaster and a barge that this coaster is towing and a Japanese tug with gunfire in the western part of the Java Sea. Also another coaster is forced ashore on Panjang Island. |
| 1945 | Tantalus (P 318) | HMS Tantalus sinks a Japanese tug and three barges in the southern part of the South China Sea. |
| 1953 | Sirdar (P 226) | Sirdar was swamped by floods while in dry dock at the naval dockyard at Sheerness, Kent, and later sank. |
| 1954 | Sidon (P 259) | Transferred to 5th Submarine Squadron pending refit. |
| 1962 | Otus (S 18) | Laid Down |
| 1993 | Vengance (S 31) | Laid Down |