| Kima Environmental LLC | Royersford | PA | $622K |
| North Wind Environmental Consulting Services, LLC | Idaho Falls | ID | $620K |
| Shipley Group, Inc. The | Farmington | UT | $620K |
| Srivastava, Vinod | Export | PA | $617K |
| Sequoia Ecological Consulting, Inc. | Walnut Creek | CA | $610K |
| Db Ecological Services Inc. | Micco | FL | $608K |
| Edwards-pitman Environmental Inc. | Atlanta | GA | $605K |
| Boggs Environmental Consultants, Inc. | Middletown | MD | $596K |
| Compass Resource Management Ltd. | Vancouver | BC | $587K |
| Biophilia LLC | Ontonagon | MI | $573K |
| Float Partners II LLC | Kaneohe | HI | $573K |
| Kestrel Tellevate LLC | Decatur | GA | $569K |
| Wildwood Environmental Credit Company, LLC | Tyler | TX | $565K |
| Bajada Ecology LLC | Ridgecrest | CA | $553K |
| Dh Environmental, Inc. | Seattle | WA | $553K |
| Allied Pacific Environmental Consulting | Hagatna | GU | $551K |
| Pacific Engineering And Consulting, Inc. | Fresno | CA | $548K |
| Viva Environmental Health & Safety LLC | Philadelphia | PA | $547K |
| Mount Hood Environmental, LLC | Sandy | OR | $542K |
| Global Biosurvey | Corvallis | OR | $538K |
| Phycotech, Inc. | Saint Joseph | MI | $535K |
| Environmental Health And Safety Solutions, LLC | Parkton | MD | $535K |
| True Wind Collaborative LLC | Gig Harbor | WA | $525K |
| Zimmetry Environmental Management, Corp. | Bayamon | PR | $523K |
| Cih Services Inc. | Pittsburgh | PA | $518K |
| Conference For The Model Aquatic Health Code, Inc. | Maricopa | AZ | $514K |
| Capa Strategies, LLC | Portland | OR | $513K |
| Aces, LLC | Anchorage | AK | $513K |
| Aspen CRM Solutions, Inc. | Santa Fe | NM | $508K |
| Advanced Eco-solutions, Inc. | Newman Lake | WA | $506K |
| 374water, Inc. | Morrisville | NC | $502K |
| Alaska Ecoscience | Fairbanks | AK | $502K |
| Ocean Metrics LLC | Saint Petersburg | FL | $500K |
| Icf Environmental, Inc. | Reston | VA | $499K |
| B & B Nurseries, Inc. | Riverside | CA | $497K |
| CFC Anlagen- Und Umweltsicherheit GMBH | Ellerstadt | | $492K |
| Electro- Analytical, Inc. | Mentor | OH | $488K |
| Lark Environmental Inc. | Evansville | WY | $485K |
| Mountain G Enterprises Inc. | Folsom | CA | $483K |
| Bionomics, Inc. | Oak Ridge | TN | $482K |
| Wetland Resolutions, LLC | Roswell | GA | $474K |
| Aloterra Restoration Services, Inc. | Boulder | CO | $468K |
| Geogreen21 Co. Ltd. | Seoul | | $465K |
| Socio-ecological Concepts LLC | Montrose | CO | $465K |
| Jasco Applied Sciences (canada) Ltd. | Dartmouth | NS | $462K |
| Ash Creek Forest Management, LLC | Hillsboro | OR | $461K |
| Design For Health Environmental Education Center, Pacific Rim Division, Inc. | San Diego | CA | $460K |
| Terraphase Engineering Inc. | Oakland | CA | $454K |
| Voneco | Incheon | | $453K |
| Sijora Enterprises LLC | Tamarac | FL | $444K |
| Waterborne Environmental, Inc. | Leesburg | VA | $439K |
| Mary Claire Kier | Mckinleyville | CA | $438K |
| JWJ Consulting, LLC | Rock Hill | SC | $438K |
| Susan L Santos | Medford | MA | $432K |
| Smru, LLC | Friday Harbor | WA | $431K |
| Eureka Aquatic Research LLC | Ann Arbor | MI | $424K |
| Apex Environmental Management, Inc. | Mauldin | SC | $422K |
| Environmental Law Institute, The | Washington | DC | $419K |
| Brownfields Development LLC | Louisville | KY | $419K |
| CDM Smith-tigerbrain, A Joint Venture | Fairfax | VA | $417K |
| Ecological Associates, Inc. | Jensen Beach | FL | $415K |
| Oyo Corporation | Chiyoda-ku | TOKYO | $414K |
| Geographic Consulting LLC | Christiansted | VI | $413K |
| Conservation Metrics, Inc. | Santa Cruz | CA | $411K |
| Gaia Ai, Inc. | Somerville | MA | $410K |
| Alta Archaeological Consulting LLC | Santa Rosa | CA | $403K |
| Green 2 Green Consulting LLC | Alexandria Bay | NY | $398K |
| Kapur Energy Environment Economics, LLC | Charlottesville | VA | $396K |
| Juniper Environmental LLC | Alton | IL | $393K |
| The Alc Group, LLC | New York | NY | $385K |
| Terry L. Schulze, PHD, Inc. | Perrineville | NJ | $384K |
| Southern California Coastal Water Research Project Authority | Costa Mesa | CA | $382K |
| Public Health Analytics LLC | West Newton | MA | $381K |
| Highland Economics LLC | Portland | OR | $376K |
| Peter Klug | Gammelshausen | | $374K |
| RJS Guam LLC | Asan | GU | $370K |
| Atc Group Services LLC | Lafayette | LA | $365K |
| Hydrodata GMBH | Oberursel | | $365K |
| Aquatechnex, LLC | Centralia | WA | $364K |
| Bainbridge Environmental Consultants, Inc. | La Mirada | CA | $359K |
| John E. Gourley | Saipan | MP | $355K |
| Robbwaterpartners LLC | New York | NY | $344K |
| E & S Environmental Chemistry, Inc. | Corvallis | OR | $343K |
| Coastal Conservation Group LLC | St Augustine | FL | $338K |
| Alan Tate Herlihy | Corvallis | OR | $337K |
| Fred Phillips Consulting, LLC | Ridgway | CO | $337K |
| Bb Environmental Radiation Consultants LLC | Overland Park | KS | $336K |
| Creative Resource Strategies, LLC | Salem | OR | $335K |
| Environmental Systems Analysis, Inc. | Crofton | MD | $329K |
| Carter Dr J H III & Associates Inc. | Southern Pines | NC | $329K |
| Ramboll US Consulting, Inc. | Arlington | VA | $326K |
| Wra, Inc. | San Rafael | CA | $326K |
| The Converse Professional Group | Monrovia | CA | $319K |
| Blackhawk Environmental Inc. | San Diego | CA | $312K |
| Terwilliger Consulting, Inc. | Locustville | VA | $310K |
| Kr Environmental Services Inc. | Fountain Valley | CA | $309K |
| Leonard Rice Consulting Water Engineers LLC | Denver | CO | $303K |
| Environmental Design, Inc. | Pennsauken | NJ | $299K |
| Enviro Safety Compliance Alternative Inc. | San Juan | PR | $298K |
| Intermountain Aquatics Inc. | Driggs | ID | $298K |
