| Spitz (Wolfpack of U Boats) |
 U-203  | U-225 |
| U-260 | U-356  |
| U-406 | U-440 |
| U-659 | U-662 |
| U-664 | U-123  |
| Ungestum (Wolfpack of U boats) |
| U-336 | U-373 |
| U-409 | U-435 |
| U-441 | U-455 |
| U-591 | U-615 |
| U-628 |
| ONS 154 |
 Fidelity  | Melrose Abbey |
 Toward |  Norse King |
Président Francqui  |  Soekaboemi |
| Advastun | Baron Cochrane |
Calgary  | Debrett |
| Dundrum Castle | Empire Geraint |
| Empire Union | Empire Wagtail |
| Esturias | Fanan |
| J.M. Bartelmi | Jasper Park |
| King Edward | Lynton Grange |
| Maltheas | Melmore Head |
 Scottish Heather | Ungeni |
| Veni | Ville de Rouen |
| Zarian | Empire Shackleton |
 E.G. Suebert |
| Windeyer (Canadian Escort Group C1) |
 Saint Laurent | Battleford  |
| Chilliwack | Kenogami |
| Napanee | Shediac |
| Reinforcement for the convoy escort. Arrive on the 30th |
 Meteor | Milne |
 Saint Francis | Viceroy  |
| Other vessels sent to reinforce the convoy. They arrive after the battle |
Cole  | Dallas |
| Fame | Arrowhead |
| Chicoutini | Prescott |
| Woodstock | Digby  |