| 1905 | B2 | Completed |
| 1905 | C7 | Laid Down |
| 1914 | E13 | Completed |
| 1915 | E24 | Launched |
| 1936 | Seal (N37) | Laid Down |
| 1939 | Union (N56) | Laid Down |
| 1939 | Urchin (N97) | Laid Down |
| 1941 | Porpoise (N14) | HMS Porpoise torpedoes and heavy damages the Italian passenger/cargo ship Sebastiano Venier about 5 nautical miles south of Navarino. The Sebastiano Venier is transporting more then 1800 Allied POW's. Despite the bad weather almost 1700 of these are rescued. |
| 1942 | Umbra (P35) | HMS Umbra torpedoes and sinks the German merchant Süllberg south of Hammamet, Tunesia. |
| 1943 | Surf (P239) | HMS Surf torpedoes and sinks the German merchant Sonia south of Lemnos Island, Greece. |
| 1944 | Porpoise (N14) | HMS Porpoise lays minefield ML 019 with 50 mines off Penang. |
| 1944 | U-387 | HMS Bamborough Castle sinks U-387 off Murmansk |
| 1944 | Scotsman (P243) | Completed |
