| # | Company name | Role | # of projects |
|---|---|---|---|
| 981 | FSinn + Andrews Pte Ltd. | Consultancy | 0 |
| 982 | Fugro-mcclelland | Consultancy | 0 |
| 983 | Furness Partnership | Consultancy | 2 |
| 984 | G A Mattern & Associates | Consultancy | 0 |
| 985 | G A Nicoli And Associates | Consultancy | 1 |
| 986 | G C Mapping Service | Consultancy | 3 |
| 987 | G J Thelen & Associates | Consultancy | 0 |
| 988 | G M B Engineering Inc. | Consultancy | 1 |
| 989 | G.J. Sweeney Associates | Consultancy | 0 |
| 990 | G&W Engineers Inc. | Consultancy | 1 |
| 991 | G3 Quantity Surveying | Consultancy | 0 |
| 992 | Gabinete de Estudios Ambientales | Consultancy | 1 |
| 993 | Gabriele Development Services | Consultancy | 1 |
| 994 | Gaisiner Asher Engineering Consultants | Consultancy | 1 |
| 995 | GAKO AB | Consultancy | 10 |
| 996 | Galloway & Company | Consultancy | 0 |
| 997 | Galson Corporation | Consultancy | 1 |
| 998 | Gambert Engineering Consulting & Decoration | Consultancy | 1 |
| 999 | Gannett Fleming | Consultancy | 0 |
| 1,000 | Garden Reproductions | Consultancy | 0 |