Canadian-based company. See also Pratt & Whitney

| Models | ||
|---|---|---|
| Hybrid-Electric propulsion | ||
| PT6 | ||
| PT6B-37A | 1002 | a119 , aw119kx , aw119t |
| PT6C-67A | 2000 | aw609 |
| PT6C-67C | 1679 | aw139 , aw139m |
| PT6C-67C1 | 1100 | mh-139 |
| PT6C-67D | 1400 | |
| PT6C-67E | 2000 | ec175 , H175M |
| PT6T-3BE | 1800 | ab212 , ab212asw , 212 , 412ep , ch-146 |
| T400-CP-400 | 1800 | ah-1j , UH-1N |
| PW200 | ||
| PW206B | 431 | ec135p1 |
| PW206B2 | 447 | ec135p2 , ec135p2+ , EC635P2 |
| PW206B3 | 708 | ec135p3 |
| PW206C | 561 | ab412hp , aw109e |
| PW206E | 646 | md900 , md969 |
| PW207C | 572 | aw109n , aw109s , trekker , aw109sp , AW109 TrekkerM |
| PW207D | 572 | 427 |
| PW207D1 | 625 | 429 |
| PW207E | 572 | md902 |
| PW207V | 600 | VRT500 |
| PW207K | 630 | Ansat |
| PW210 | 1000 | aw169 , s-76d |
