EOR LIQ Database Firms listed (in alphabetical order) have submitted LIQ packets in accordance with the PBC’s open call for Letters of Interest and Qualifications. For more information, check out our Engineers page. ABNA EngineeringAECOM Technical Services, Inc.Alpha Commissioning Engineers, Inc.APEX Consulting EngineersAtlas Engineering GroupBloom Companies, LLCCannon DesignCDM SmithCivCon Services, Inc.David Engineering, LLCDavid Mason & Associates of Illinois, Ltd.DB Sterlin Consultants, Inc.Delta Engineering, Inc.Dynacept Inc.ECS Midwest, LLCEnvironmental Design International, Inc.exp U.S. Services Inc.FIX ConsultingGhafari Associates, LLCGlobetrotters Engineering Corp.Gloger Engineers LimitedGRAEF – USA, Inc.GSG Consultants, Inc.Harry O. Hefter Associates, Inc.HBK Engineering, LLCHenneman Engineering, Inc.IBC Engineering ServicesInfrastructure Engineering, IncorporatedKaltsouni Mehdi Inc.Knight E/A, Inc.Larson Engineering, Inc.Melvin Cohen & AssociatesMEP Infrastructure SolutionsMilhouse Engineering & ConstructionNASHnal Soil TestingPrimera Engineers, Ltd.Raths, Raths & JohnsonRubinos & Mesia Engineers, Inc.SDIENGR CorpSimpson Gumpertz & HegerSINGH + AssociatesSkidmore, Owings & Merrill LLPSolved EngineeringSPAAN Tech, Inc.SSRCxTechknow EngrTerra Engineering, Ltd.Walker Restoration ConsultantsWJE (Wiss, Janney, Elstner Associates, Inc.) Sign up for PBC Alerts!your direct connection to the Public Building CommissionPBC Alerts is a free email service that notifies you each time contracts are offered for bid or professional qualifications are sought. Click here to sign upLIQ Quick Links The Architects of Record Database can be found here. Questions about this list? View our Frequently Asked Questions or contact us at firstname.lastname@example.org. Is there an error in your firm’s information? If so, please fill out a Contact Details Update Form and send it to email@example.com.