| 1914 | Pandora 1902 - 1939 | SS Seti purchased from Russia |
| 1915 | E 26 | Launched |
| 1915 | E 43 | Launched |
| 1916 | K 13 (K 22) | Launched |
| 1921 | Rosario 1898 - 1921 | Sold in Hong Kong for breaking up |
| 1930 | Regent (N 41) | Completed |
| 1939 | Seal (N 37) | HMS Seal departed Portsmouth for her 4th war patrol. She was to provide ocean escort for convoy O.A. 33 together with HMS Cachalot |
| 1942 | Unbeaten (N 93) | HMS Unbeaten attacked and sunk in error by RAF Wellington of No.172 Squadron, Coastal Command. All hands lost. On patrol in Bay of Biscay for German raiders, supply ships and U-boats on passage |
| 1942 | Turbulent (N 98) | HMS Turbulent torpedoes and sinks the German auxiliary submarine tender Bengasi about 10 nautical miles north-east of Capo Carbonara, Sardinia, Italy. |
| 1942 | Ursula (N 59) | HMS Ursula attacks but misses the German submarine U-73 off Cabo de Gata, Spain. |
| 1942 | Stubborn (P 238) | Launched |
| 1943 | Voracious (P 78) | Launched |
| 1944 | Venturer (P 68) | Torpedoed and sank the German submarine U-771 in the Andfjord near Harstad, Norway. |
| 1944 | Tantalus (P 318) | HMS Tantalus sinks the Japanese coaster Palang Maru with gunfire of the east coast of Malaya. |
| 1951 | Sidon (P 259) | Paid off into Reserve Group "F" attached to 5th Submarine Flotilla Devonport pending refit. |
| 1967 | Repulse (S 23) | Launched |
| 2009 | Trafalgar (S 107) | HMS Trafalgar sailed into its Devon base for the final time prior to decommissioning. Its return was marked with a flypast by a navy Merlin helicopter. |