| # | Company name | Role | # of projects |
|---|---|---|---|
| 221 | Foster, Jacobs & Johnson Inc. | MEP engineering | 3 |
| 222 | Francis Associates | MEP engineering | 2 |
| 223 | Frank Leverone Consultants | MEP engineering | 3 |
| 224 | Frank Shannon, P.E. | MEP engineering | 1 |
| 225 | Franyie Engineers, Inc. | MEP engineering | 62 |
| 226 | Fredensborg VVS Teknik A/S | MEP engineering | 1 |
| 227 | Fritzson VVS-teknik AB | MEP engineering | 1 |
| 228 | Fryda Dorne & Associates Pty Ltd. | MEP engineering | 1 |
| 229 | Fudo Construction Co., Ltd. | MEP engineering | 7 |
| 230 | Fulcrum Consulting | MEP engineering | 5 |
| 231 | G. Bunel | MEP engineering | 1 |
| 232 | Garber & Cohen | MEP engineering | 1 |
| 233 | Gatter & Diehl, Inc. | MEP engineering | 1 |
| 234 | GE & Asociados S.L. | MEP engineering | 1 |
| 235 | GEA PLLC | MEP engineering | 1 |
| 236 | George Blake Long | MEP engineering | 1 |
| 237 | George E. Wells | MEP engineering | 1 |
| 238 | George Langer Associates | MEP engineering | 7 |
| 239 | Gésys | MEP engineering | 2 |
| 240 | GHR Engineers & Associates, Inc. | MEP engineering | 4 |