| Enviroquest, Inc. | Sagamihara-shi | KANAGAWA | $1.14M |
| Allstar Ecology LLC | Fairmont | WV | $1.14M |
| Industrial Hygiene Resources, Ltd. | Boise | ID | $1.1M |
| Spectrum Pem JV LLC | Loganville | GA | $1.1M |
| Bldi, LLC | Grand Rapids | MI | $1.1M |
| Hydro-environmental Technologies, Inc. | Acton | MA | $1.1M |
| Catherine Anne Schnurrenberger | Truckee | CA | $1.08M |
| RMS Nicklaus JV II LLC | Ventura | CA | $1.08M |
| Acr Consultants, Inc. | Sheridan | WY | $1.08M |
| William M Kier | San Rafael | CA | $1.07M |
| GCM Services, Inc. | Butte | MT | $1.07M |
| Natures Capital LLC | Boise | ID | $1.05M |
| Atlas Environmental Consulting, LLC | Vacaville | CA | $1.03M |
| Pacific Rim Environmental, Inc. | Seattle | WA | $1.02M |
| Terran Corp. | Beavercreek | OH | $1.02M |
| Forensic Environmental Services Inc. | Exton | PA | $1.02M |
| Andrea Rabe | Klamath Falls | OR | $1.01M |
| Semper Environmental LLC | Sandy | UT | $1.01M |
| Honua Consulting, LLC | Wailuku | HI | $1.01M |
| Hartgen Archeological Associates, Inc. | Rensselaer | NY | $992K |
| Sound Science LLC | Boise | ID | $984K |
| Great Basin Bird Observatory | Reno | NV | $966K |
| Paua Marine Research Group, LLC | Long Beach | CA | $962K |
| Occu-tec Inc. | Kansas City | MO | $950K |
| William W Walker Jr | Harpswell | ME | $935K |
| Zara Environmental LLC | San Marcos | TX | $932K |
| Advanced Monitoring Methods LLC | Castle Pines | CO | $932K |
| Derosa Environmental Consulting Inc. | Rowley | MA | $930K |
| Mclellan Integrated Professional Services LLC | Dallas | TX | $928K |
| Walker Environmental Research LLC | Brunswick | ME | $925K |
| All Environmental Compliance Inc. | Rocky Point | NY | $923K |
| West Fork Environmental, Inc. | Tumwater | WA | $921K |
| Al Department Environmental Management | Montgomery | AL | $920K |
| Panamerican Consultants Inc. | Memphis | TN | $916K |
| Sse Ayuda JV, LLC | San Antonio | TX | $913K |
| Salus Resources Inc. | Gainesville | FL | $909K |
| Matt Low & Associates L.L.C. | Washington | DC | $901K |
| Highlands Environmental Solutions, Inc. | Raleigh | NC | $900K |
| Terra Soil & Environmental Solutions LLC | Livingston | MT | $884K |
| Geomar Environmental Consultants, Inc. | Cocoa | FL | $882K |
| Southwest-environmental Planning JV | Charlottesville | VA | $881K |
| Grand River Archaeological Inc. | Grand Junction | CO | $881K |
| Sacramento River Ranch LLC | Rocklin | CA | $875K |
| Southwest Wx Inc. | Branford | CT | $859K |
| Marine Taxonomic Services, Limited | San Marcos | CA | $853K |
| Thunderbird-hrp JV LLC | Clinton | CT | $848K |
| Enviroscience Inc. | Stow | OH | $842K |
| Environmental Solutions Er2m LLC | Mill Creek | WA | $838K |
| MTC Consulting LLC | White Plains | GA | $827K |
| Pyramid Botanical Consultants, Inc. | Twin Bridges | CA | $825K |
| Waseyabek-cti Environmental Services JV LLC | Grand Rapids | MI | $819K |
| Boes Wendy L | Nevada City | CA | $818K |
| QTS Group LLC | Charlotte | NC | $817K |
| Tetra Tech, Inc.Irvine, CA · UEI EW34JPNUQK84 | Irvine | CA | $815K |
| Phase Associates LLC | Livingston | NJ | $813K |
| Rna - Ricerca Natura Api S.R.L. | Pisa | PI | $813K |
| Redstart, Inc. | Bradford | VT | $813K |
| Jensen Ecology LLC | Madison | WI | $804K |
| Coosa Fish And Wildlife Initiative, LLC | Hayesville | NC | $801K |
| Msensafe 8a-jv, LLC | Orlando | FL | $801K |
| Mclane Environmental, LLC | Princeton | NJ | $793K |
| Bluacres LLC | Williamsburg | PA | $791K |
| Rock Leaf Water Environmental LLC | Blaine | MN | $790K |
| Terra Mar Applied Sciences, LLC | Easton | MD | $790K |
| M. B. Main Enterprise LLC | Gainesville | FL | $782K |
| Diane Skipworth | Desoto | TX | $779K |
| Qeda Consulting LLC | Seattle | WA | $776K |
| Westwater Engineering, Inc. | Grand JCT | CO | $776K |
| Nortech, Inc. | Fairbanks | AK | $774K |
| Pacific Western Technologies, Ltd. | Wheat Ridge | CO | $768K |
| Eocene Environmental Group, Inc. | West Des Moines | IA | $754K |
| Blue Latitudes, LLC | Laguna Beach | CA | $750K |
| JRP Historical Consulting, LLC | Davis | CA | $745K |
| Silvestrum Climate Associates LLC | San Francisco | CA | $735K |
| Ecolab Inc. | Horsham | PA | $733K |
| Environmental Health & Safety Services, Inc. | Vega Baja | PR | $728K |
| Indewater LLC | Albuquerque | NM | $723K |
| Point Reyes Bird Observatory | Petaluma | CA | $717K |
| Onterris USA, Inc. | North Little Rock | AR | $709K |
| Advanced Resource Solutions, Inc. | Shingle Springs | CA | $709K |
| Harris Environmental Group Inc. | Lake Oswego | OR | $708K |
| San Francisco Estuary Institute | Richmond | CA | $706K |
| All Consulting, LLC | Tulsa | OK | $703K |
| Environnemental Network Consulting | Rabat | | $701K |
| Cih Support LLC | Cocoa Beach | FL | $691K |
| Pax Environmental, LLC | Ojai | CA | $681K |
| John W Lemons | Fruitland | WA | $677K |
| Encon International, Inc. | El Paso | TX | $671K |
| Chef Menteur Credit Co. LLC | Baltimore | MD | $666K |
| Devereux Consulting, Inc. | Silver Spring | MD | $664K |
| Engineering & Environment, Inc. | Virginia Beach | VA | $658K |
| Environmental Consulting Group, Inc. | Elmhurst | IL | $658K |
| Tetra Tech, Inc.Lafayette, CA · UEI LDKKMTYMENU6 | Lafayette | CA | $651K |
| Thunderbird Environmental, LLC | Clinton | CT | $643K |
| Dki808 LLC | Honolulu | HI | $641K |
| Ams-rhea JV | Leonardtown | MD | $640K |
| Arndt Consulting Services | Livermore | CA | $638K |
| Aquatic Environment Consultants, Inc. | Chambersburg | PA | $637K |
| Desert Archaeology, Inc. | Tucson | AZ | $633K |
| Okinawa Environmental Analysis Center Co. Ltd. | Ginowan City | | $630K |
