| Galt Group Inc. | West Palm Beach | FL | Subcontractor |
| Galvanic Engineering LLC | Littleton | CO | Subcontractor |
| Gannett Fleming, Inc. | Owings Mills | MD | $0 |
| Ganymede Corporation | Austin | TX | Subcontractor |
| Gap Services Inc. | Huntsville | AL | Subcontractor |
| Garabedian Associates | Helotes | TX | Subcontractor |
| Garcia & Wright Consulting Engineers, Inc. | San Antonio | TX | Subcontractor |
| Garg Consulting Services Inc. | Rocky Hill | CT | $0 |
| Garness Engineering Group, Ltd. | Anchorage | AK | $0 |
| Gaston Engineering & Surveying, P.C | Bozeman | MT | Subcontractor |
| Gas Turbine Services LLC | Salem | NH | $0 |
| Gatekey Engineering Inc. | Groveport | OH | $0 |
| Gayner Engineers | San Francisco | CA | Subcontractor |
| Gaztransport & Technigaz North America, Inc. | Houston | TX | $0 |
| Gb Tech, Inc. | Houston | TX | Subcontractor |
| Gc Engineering Inc. | Pearland | TX | Subcontractor |
| Gdi Engineers LLC | Okinawa City | | Subcontractor |
| GDS Associates, Inc. | Marietta | GA | $0 |
| Gdsprouse7consult LLC | Midlothian | VA | Subcontractor |
| Gemini Engineering & Sciences Inc. | Jacksonville | FL | Subcontractor |
| General Drafting & Design, Inc. | North Haven | CT | $0 |
| General Dynamics Government Systems Overseas Corporation | Falls Church | VA | Subcontractor |
| General Dynamics Information Technolgy, Inc. | Sierra Vista | AZ | Subcontractor |
| General Dynamics Information Technology Inc.Hampton, VA · UEI DMTMU8R7TJQ5 | Hampton | VA | $0 |
| General Dynamics Information Technology Inc.Orlando, FL · UEI F6PXXE6117Z2 | Orlando | FL | Subcontractor |
| General Dynamics Information Technology Inc.Herndon, VA · UEI KJW9HKY3NZN1 | Herndon | VA | Subcontractor |
| General Dynamics Information Technology, Inc.Colorado Springs, CO · UEI CLMYED43HGN9 | Colorado Springs | CO | Subcontractor |
| General Dynamics Information Technology, Inc.Chula Vista, CA · UEI E714CSZ9KG87 | Chula Vista | CA | Subcontractor |
| General Dynamics Information Technology, Inc.Falls Church, VA · UEI EHK1G7LW2378 | Falls Church | VA | Subcontractor |
| General Dynamics Information Technology, Inc.Dayton, OH · UEI EUBEPS8E6F88 | Dayton | OH | Subcontractor |
| General Dynamics Information Technology, Inc.Springfield, VA · UEI L37ML9LA3RR5 | Springfield | VA | $0 |
| General Dynamics Information Technology, Inc.Beavercreek, OH · UEI L7BCP6N3NPT6 | Beavercreek | OH | Subcontractor |
| General Dynamics Information Technology, Inc.Columbia, MD · UEI MDZ2JCBZ6BK8 | Columbia | MD | Subcontractor |
| General Dynamics Information Technology, Inc.Chesapeake, VA · UEI SAQWEFY1VK17 | Chesapeake | VA | Subcontractor |
| General Dynamics Information Technology, Inc.Fairview Heights, IL · UEI ZM65JQJZTVS5 | Fairview Heights | IL | Subcontractor |
| General Dynamics Mission Systems Inc.El Segundo, CA · UEI Q2PELL6LTKJ3 | El Segundo | CA | Subcontractor |
| General Dynamics Mission Systems Inc.Fort Wayne, IN · UEI XLKRB3RSLVM1 | Fort Wayne | IN | Subcontractor |
| General Dynamics Mission Systems, Inc. | National City | CA | Subcontractor |
| General Dynamics Network Systems, Inc. | Needham | MA | $0 |
| Genesis Integrated Systems LLC | Laceys Spring | AL | Subcontractor |
| Geocim, Inc. PSC | Guaynabo | PR | Subcontractor |
| Geocon Consultants Inc. | Livermore | CA | Subcontractor |
| Geocon West, Inc. | San Diego | CA | Subcontractor |
| Geodesign, Inc. | Wilsonville | OR | $0 |
| Geoengineering & Environment | Lexington | MA | Subcontractor |
| Geo-engineering, LLC | San Juan | PR | Subcontractor |
| Geo Engineering & Testing Inc. | Barrigada | GU | Subcontractor |
| Geoenvironmental Resources, Inc. | Virginia Beach | VA | Subcontractor |
| Geo-hydro Engineers, Inc. | Kennesaw | GA | Subcontractor |
| Geomat, LLC | Farmington | NM | Subcontractor |
| George Butler Associates Inc. | Kansas City | MO | $0 |
| George Cairo Engineering Inc. | Mesa | AZ | $0 |
| George E Roberts Jr. | Aurora | TX | Subcontractor |
| George, Miles & Buhr, LLC | Salisbury | MD | Subcontractor |
| George Sills Geotechnical Engineering Consultant LLC | Starkville | MS | $0 |
| Georgian Aerospace, LLC | Chesterfield | MO | Subcontractor |
| Geostock Sandia LLC | Houston | TX | Subcontractor |
| Geosynthetic Institute | Folsom | PA | $0 |
| Geotechnical Engineering Testing Inc. | Mobile | AL | $0 |
| Geotechnical & Environmental Consultants, Inc. | Macon | GA | Subcontractor |
| Geotechnical & Environmental Services Inc. | Las Vegas | NV | Subcontractor |
| Geotek Coring Inc. | Salt Lake City | UT | Subcontractor |
| Geotex Engineering LLC | Collinsville | TX | Subcontractor |
| Gerhart Cole Inc. | Midvale | UT | Subcontractor |
| Gers U.S.A. LLC | Weston | FL | Subcontractor |
| Gessner Engineering LLC | Bryan | TX | $0 |
| Gestra Engineering, Inc. | Milwaukee | WI | Subcontractor |
| Ge Vernova Hitachi Nuclear Energy Americas LLC | Castle Hayne | NC | $0 |
| Gewalt-hamilton Associates, Inc. | Vernon Hills | IL | Subcontractor |
| Gf Systems Analytics Inc. | Woodside | NY | Subcontractor |
| Ggfga Engineering, LLC | Stockbridge | GA | Subcontractor |
| GGT Energy Solutions Inc. | Greenfield | IN | Subcontractor |
| GHD Inc.Eureka, CA · UEI HL1PFDRQ5456 | Eureka | CA | Subcontractor |
| GHD Inc.Irvine, CA · UEI J6SPNCFFKJ43 | Irvine | CA | Subcontractor |
| GHD Inc.Middle River, MD · UEI L3RRZCWCHXM7 | Middle River | MD | Subcontractor |
| GHD Pty Ltd. | Canberra | | Subcontractor |
| GHD Services Inc.Bluffton, SC · UEI FRC2A5A3NRA9 | Bluffton | SC | Subcontractor |
| GHD Services Inc.Niagara Falls, NY · UEI QCFRL3JNNX55 | Niagara Falls | NY | Subcontractor |
| GHG Corp. | Webster | TX | Subcontractor |
| GHT Limited | Arlington | VA | Subcontractor |
| Gibbons Systems Inc. | San Mateo | CA | $0 |
| Gibbs & Cox, Inc. | New York | NY | Subcontractor |
| Gigengineer, Inc. | Georgetown | TX | $0 |
| Gillespie, Prudhon & Associates, Inc. | Clackamas | OR | Subcontractor |
| Gillham & Associates | Hagatna | GU | Subcontractor |
| Gilsanz Murray Steficek LLP Engineers And Architects | New York | NY | $0 |
| Gilson Engineering | Draper | UT | $0 |
| Ginn Technical Solutions Inc. | Huntsville | AL | Subcontractor |
| Gipe Associates Inc. | Easton | MD | $0 |
| Gky & Associates, Inc. | Chantilly | VA | $0 |
| Glanz Consulting LLC | Towson | MD | Subcontractor |
| Glasgow Labs Limited | Bradley Beach | NJ | Subcontractor |
| Glaus, Pyle, Schomer, Burns & Dehaven, Inc. | Akron | OH | Subcontractor |
| Glenn A. Rick Engineering & Development Company | San Diego | CA | Subcontractor |
| Global Build Collaborative Inc. | Media | PA | Subcontractor |
| Global Structural Services, LLC | Glen Allen | VA | Subcontractor |
| Global Technology Associates Ltd. | Southfield | MI | Subcontractor |
| Globetrotters Engineering Corp. | Chicago | IL | $0 |
| Globodon, LLC | Boulder | CO | Subcontractor |
| Glowacki Engineering Co. | Fleming Island | FL | Subcontractor |
