| # | Company name | Role | # of Projects |
|---|---|---|---|
| 1 |
|
landscape architect | 2 |
| 2 | 2.ink Studio | landscape architect | 1 |
| 3 | 3D Design Studio | landscape architect | 1 |
| 4 | Abbey Associates Inc. Landscape Architects | landscape architect | 0 |
| 5 | Abey Arnold Associates Inc. | landscape architect | 0 |
| 6 | ACLA Private Limited | landscape architect | 0 |
| 7 | Adler & Olesch Landschaftsarchitekten BDLA und Ingenieure | landscape architect | 2 |
| 8 | ADP Fluor Daniel | landscape architect | 0 |
| 9 | Adrienne Wong & Assoc | landscape architect | 4 |
| 10 | A Dye Design | landscape architect | 1 |
| 11 | A Grant Thornbrough & Associates | landscape architect | 12 |
| 12 | A. Gregory Catlow | landscape architect | 1 |
| 13 | ahbe landscape architects | landscape architect | 9 |
| 14 | Aitken Associates | landscape architect | 1 |
| 15 | ak AUSSENKONZEPTE | landscape architect | 1 |
| 16 | A & K Land Planning & Design Inc | landscape architect | 1 |
| 17 | A.K. Young & Associates | landscape architect | 2 |
| 18 | Alaback Design Associates | landscape architect | 5 |
| 19 | Alan D Holt ASLA Landscape Architect PA | landscape architect | 3 |
| 20 | Alan Whidby Landscapes | landscape architect | 1 |