| 1 | | Primary 2525 Warren Drive | Rocklin |  US | | Environmental Consulting | N/A | Mark Kessler | SEO/SEM Marketing |
| 2 | | Primary | Berkeley | US | | Environmental Consulting and Equity-Based Solutions | N/A | Nahal Ghoghaie Ipakchi | Advocate and Bridge-Builder for Equitable Water and Climate Policy and Planning |
| 3 | | Primary 5 Old Dock Road | Yaphank | US | | Environmental Consulting, Engineering and Remediation | N/A | john buhagiar | Chief Financial Officer |
| 4 | | Primary 404 Wyman St | Waltham | US | | Environmental Consulting & Engineering Services | N/A | Payson Whitney | Vice President, Water & Coastal Engineering; Submarine Cable Project Manager at ESS Group, Inc. |
| 5 | | Primary 2500 N 11th. Street | Enid | US | | Civil Engineering and Environmental Consulting | N/A | Jimmy Stallings | President and CEO at Envirotech Engineering and Consulting, Inc. |
| 6 | | Primary 4 Blanchard Road | Cumberland | US | | Civil and Environmental Consulting Engineering | N/A | Sandra Wyman | Senior Chemical Engineer at Sevee and Maher Engineers |
| 7 | | Primary 8502 SW Kansas Ave | Stuart | US | | A Marine Environmental Consulting Firm | N/A | Tony Martin | Infrastructure Director at CSA Ocean Sciences Inc. |
| 8 | | Primary 1401 Branding Avenue Suite 315 | Downers Grove | US | | Experienced Environmental Consulting Professionals | N/A | Hank Mittelhauser | Principal at St.John-Mittelhauser & Associates |
| 9 | | Primary 209 Shafter Street | Islandia | US | | Environmental Consulting & Management | N/A | Marc Scarcella | N/A |
| 10 | | Primary 47 Junction Square Drive | Concord | US | | Strategic Environmental Consulting | N/A | Amlan Saha | Energy and Environmental Economist and Public Policy Adviser |
| 11 | | Primary 611 TX-78 132 | Wylie | US | | Texas-Based Environmental Consulting Firm | N/A | LaCretia White, REM | Project Manager at Elm Creek Environmental LLC |
| 12 | | Primary 310 E Buffalo Street | Milwaukee | US | | Environmental Consulting and Construction Services | N/A | Christine (Tina) Reese | President at The Reese Group, LLC |
| 13 | | Primary 25 Nashua Rd | Bedford | US | | Environmental Consulting, Research, and Technology | N/A | robert varney | President |
| 14 | | Primary 14731 Pebble Bend Drive | Houston | US | | Environmental Consulting and Engineering | N/A | James Callahan | Data Scientist at InControl Technologies |
| 15 | | Primary | Lagos |  NG | | Environmental Consulting & Advisory Firm | N/A | N/A | N/A |
| 16 | | Primary | Kellogg | US | | Environmental Consulting | N/A | Ronald Mackin | Environmental Consulting |
| 17 | | Primary 20-22 Wenlock Road | London |  GB | | Environmental Consulting | N/A | JOSE RAMON CARBAJOSA | International Recycling / Circular Economy Consultant. International trade in recycled raw materials. |
| 18 | | Primary 8750 Holgate Crescent | Milton |  CA | | Environmental Consulting, Surety Consulting | N/A | Michael J. Cugino | P.Geo., QPESA, P.Geol., Principal Geoscientist, EVP |
| 19 | | Primary 69 Newell Rd | Yarmouth | US | | Environmental Consulting and Field Services | N/A | Michael Sears | Business Development Manager - Fish Passage and Tracking Consulting Services |
| 20 | | Primary 590 Menlo Drive, Suite 5 | Rocklin | US | | Environmental Consulting, Planning, Landscape Architecture | N/A | Marisa Brilts | Biologist and Resource Assessment Specialist |
