| Lno Inc. | Evans | GA | $28.8M |
| Advanced Project Consulting, LLC | Miramar Beach | FL | $28.8M |
| Gnostech, LLC | Warminster | PA | $28.8M |
| Technologist Inc. | Vienna | VA | $28.8M |
| KNK Engineering Consulting Corp. | Tampa | FL | $28.7M |
| Technical Systems Integration, Inc. | Williamsburg | VA | $28.7M |
| Vision Centric Inc. | Madison | AL | $28.7M |
| Lufburrow And Company, Inc. | Aberdeen | MD | $28.6M |
| Fni Cowi & CDM Smith JV | Fort Worth | TX | $28.6M |
| Otie-merrick JV LLC | Milwaukee | WI | $28.6M |
| RLF & Cn JV | Orlando | FL | $28.6M |
| Jimenez Engineering Solutions, LLC | Edinburg | TX | $28.6M |
| Tehama-llc And HDR Joint Venture LP | Kansas City | MO | $28.6M |
| TSM LLC | Centreville | VA | $28.5M |
| Peraton Services & Solutions Inc. | Herndon | VA | $28.4M |
| Terasense, Inc. | Havre De Grace | MD | $28.3M |
| Gei Consultants Inc. | Wakefield | MA | $28.3M |
| Aes Group Inc. | Parker | CO | $28.3M |
| A&b Foundry, LLC | Franklin | OH | $28M |
| Schnabel-hdr Joint Venture | Chadds Ford | PA | $27.9M |
| Bristol-bb&e JV LLC | Anchorage | AK | $27.9M |
| Sain Engineering Associates, Inc. | Birmingham | AL | $27.9M |
| Dmaero, LLC | Warner Robins | GA | $27.7M |
| Cardinal Engineering, LLC | Washington | DC | $27.7M |
| Thornton Tomasetti, Inc. | New York | NY | $27.6M |
| Integrity Federal Services, Inc. | Beachwood | OH | $27.4M |
| Knight Federal Solutions Inc. | Orlando | FL | $27.3M |
| Aesus Design Group LLC | Tempe | AZ | $27.3M |
| Mosaic Atm, Inc. | Leesburg | VA | $27.2M |
| Dowl, LLC | Billings | MT | $27.2M |
| Delon Hampton & Associates, Chartered | Washington | DC | $27.2M |
| HDR Gei Joint Venture | Folsom | CA | $27.1M |
| Alex-alternative Experts, LLC | Marshall | VA | $27.1M |
| Purvis Systems Inc. | Queens Village | NY | $27.1M |
| Princeton Hydro LLC | Trenton | NJ | $27M |
| Kunwon-ch2m Hill PMC, LLC | Pyeongtaek-si | GYEONGGI-DO | $26.9M |
| Blair Remy Merrick Mp Joint Venture, LLC | Oklahoma City | OK | $26.9M |
| Ffe Environmental Services Inc. | Blue Ash | OH | $26.8M |
| MSMM Engineering, LLC | New Orleans | LA | $26.8M |
| Ata Engineering, Inc. | San Diego | CA | $26.7M |
| PPT Solutions, LLC | Huntsville | AL | $26.6M |
| Applied Technical Systems, Inc. | King George | VA | $26.6M |
| Mb Design Consultants, LLC | Baton Rouge | LA | $26.5M |
| Pacific Science & Engineering Group, Inc. | San Diego | CA | $26.5M |
| Gomez Research Associates Inc. | Huntsville | AL | $26.5M |
| Design Alaska, Inc. | Fairbanks | AK | $26.5M |
| Kentco Corporation | Herndon | VA | $26.4M |
| 4M Research, Inc. | Huntsville | AL | $26.3M |
| Austin Brockenbrough & Associates LLC | Richmond | VA | $26.3M |
| Ah Environmental Consultants, LLC | Newport News | VA | $26.1M |
| Jacobs And Architects Hawaii Joint Venture | Honolulu | HI | $26.1M |
| Accura Rosser 8a JV LLC | Atlanta | GA | $26M |
| Rodelco Electronics Corp. | Ronkonkoma | NY | $26M |
| WSP E&is - HDR Joint Venture | Raleigh | NC | $26M |
| Cci Energy And Construction Services, LLC | Garden Ridge | TX | $26M |
| Linde Engineering North America LLC | The Woodlands | TX | $26M |
| Huitt-zollars Mason & Hanger Joint Venture | Dallas | TX | $25.9M |
| Advent SVCS LLC | Lynn Haven | FL | $25.9M |
| A. Harold And Associates LLC | Jacksonville | FL | $25.7M |
| Multi-mac Joint Venture | San Diego | CA | $25.6M |
| MSMM Huitt-zollars A Joint Venture LLC | New Orleans | LA | $25.6M |
| Greystones Consulting Group, LLC | Washington | DC | $25.5M |
| S2 Corporation | Bozeman | MT | $25.5M |
| Croft And Associates, Inc. | Kennesaw | GA | $25.5M |
| Urs-smithgroup Joint Venture | Louisville | KY | $25.5M |
| HDR Engineering, Inc. | Folsom | CA | $25.4M |
| Baskerville Donovan Inc. | Mobile | AL | $25.4M |
| Vista Technology Services, Inc. | Arlington | VA | $25.3M |
| Cobec, Inc. | Washington | DC | $25.2M |
| Oes-pond JV II LLC | Milwaukee | WI | $25.2M |
| L3 Technologies, Inc. | Herndon | VA | $25.2M |
| Baird-stantec Joint Venture | Madison | WI | $25.2M |
| Linfield, Hunter & Junius, Inc. | Metairie | LA | $25.2M |
| Rpi Group, Inc. | Fredericksburg | VA | $25.1M |
| Lloyd Collins JV | Bellaire | TX | $25.1M |
| Elevan LLC | San Antonio | TX | $25M |
| Alaire Technologies Inc. | Alexandria | VA | $25M |
| Analytic Designs Inc. | Columbus | OH | $25M |
| Yulista Gan Technology Services, LLC | Anchorage | AK | $25M |
| Aecom HDR Galveston JV | Houston | TX | $24.9M |
| Environmental Science Corporation | Chiyoda-ku | | $24.9M |
| Raymond Pond Enterprise Solutions JV LLC | Conyers | GA | $24.9M |
| Black & Veatch - Gei JV | Overland Park | KS | $24.9M |
| Acela Architects + Engineers PC | Allentown | PA | $24.8M |
| Genco Systems Inc. | Herndon | VA | $24.8M |
| Adc Engineering Inc. | Hanahan | SC | $24.8M |
| Collins Engineers, Incorporated | Chicago | IL | $24.8M |
| Redwire Space Solutions, LLC | Longmont | CO | $24.7M |
| Acqcentric, Inc. | Huntsville | AL | $24.7M |
| Marine Acoustics Inc. | Middletown | RI | $24.6M |
| Storm Services Engineering, LLC | Tallahassee | FL | $24.6M |
| Resource Management Associates, Inc. | Davis | CA | $24.6M |
| S&B Christ Consulting, LLC | Las Vegas | NV | $24.2M |
| Anautics, Inc. | Oklahoma City | OK | $24.1M |
| Edison Welding Institute Inc. | Columbus | OH | $24.1M |
| Invictus Associates, LLC | Roseland | VA | $24M |
| Versar National Security Solutions LLC | Washington | DC | $24M |
| Ohio Aerospace Institute | Brookpark | OH | $23.9M |
| Identification Technology Partners Inc. | Germantown | MD | $23.9M |
| Arcadis U.S., Inc. | Chattanooga | TN | $23.9M |
