3Vi, Inc.
San Ramon, CAEngineering Excellence for a Sustainable Future
WebsitePhone3 offices1 leaders
Service: Systems Engineering & IntegrationService: SCADA and Control SystemsIndustry: TransitType: Electrical Engineering+20 more
Public engineering firm directory
Find engineering consulting firms by capability and location.
Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.
Filters2
State
City
Services
Industries
Firm types
87 results
Showing 1-24 of 87
ARRO Consulting, Inc.
Lititz, PAYour trusted partner for municipal engineering.
WebsitePhone13 offices8 projects
Service: Civil & MunicipalService: Appointed Engineer representationIndustry: GovernmentType: Civil Engineering+52 more
ATOLLO Technology Solutions, LLC
Fulton, MDSmarter Automation. Wider Integration. Smarter Decisions Made Quickly & Affordably.
WebsitePhone1 office4 leaders
Service: Strategic Planning (Security & Operations)Service: Systems Engineering & Technology InsertionIndustry: DefenseType: Automation & Controls+14 more
AULtec, Inc.
Gaithersburg, MDProfessional Civil Engineering and Land Surveying Services
Website1 office5 projects2 leaders
Service: Civil EngineeringService: Site & Land DevelopmentIndustry: GovernmentType: Civil Engineering+21 more
Accolade Technologies LLC
Annapolis Junction, MDEmpowering organizations through technology
Website1 office2 credentialsFounded 2019
Service: Software DevelopmentService: CybersecurityIndustry: GovernmentType: Software Engineering+28 more
Accura Engineering and Consulting Services, Inc.
Atlanta, GAProviding comprehensive engineering, construction, and construction management services.
WebsitePhone3 offices8 leaders
Service: Federal ServicesService: Defense Program SupportIndustry: FederalType: Civil Engineering+32 more
Ad hoc Research Associates LLC
Belcamp, MDAI You Can Trust When Failure Isn't an Option
Website2 offices6 projectsUpdated Jun 2026
Service: Digital Twin OperationsService: Mission & Network Digital TwinsIndustry: DefenseType: Software Engineering+17 more
Aegis
Silver Spring, MDKeeping Construction Projects on Track
WebsitePhone8 offices5 projects
Service: Planning & SchedulingService: CPM Schedule DevelopmentIndustry: InfrastructureType: Owner's Engineer+31 more
Akina Inc
Highland, MDSmart solutions for smarter business.
WebsitePhone1 office1 credentials
Service: Project ManagementService: EngineeringIndustry: Intelligence & National SecurityType: Software Engineering+10 more
Alban Engineering, Inc.
Hunt Valley, MDEngineering a New MEP
WebsitePhone1 office5 projects
Service: Mechanical EngineeringService: Sustainable HVAC and Energy DesignIndustry: EducationType: MEP+15 more
Apex Companies Llc Or
Rockville, MDShaping a safe, sustainable, and equitable future.
Website1 office1 credentialsFounded 1988
Service: EnvironmentalService: Health and SafetyIndustry: AerospaceType: Environmental Engineering+45 more
Artera Technologies LLC
Ellicott City, MDEmployee-first systems and software engineering serving the intelligence community
Website1 office1 credentialsFounded 2012
Service: Computer Network OperationsService: Embedded Systems DevelopmentIndustry: Intelligence & National SecurityType: Software Engineering+21 more
Arthur Engineering Services, LLC
Laurel, MDArthur Engineering Services (AES) is a Laurel, Maryland-based practice specializing in condition assessment of water and sewer infrastructure. AES performs closed-circuit television inspections, sewer system evaluation studies, infiltration and inflow investigations, flow monitoring, hydrant and valve testing, and GIS/GPS asset surveys for municipal clients. Its field teams hold NASSCO PACP/MACP/LACP certifications and deliver large-scale cleaning and inspection contracts for DC Water, the City of Baltimore, and WSSC across hundreds of thousands of linear feet of sanitary sewer and stormwater infrastructure.
WebsitePhone1 office4 projects
Service: Sewer and Water System InspectionService: Closed Circuit Television (CCTV) InspectionsIndustry: Water SupplyType: Water / Wastewater Engineering+20 more
Base10 Technology, LLC
Baltimore, MDPeople-Driven, Mission-Focused
Website1 officeUpdated Jun 2026
Service: Systems EngineeringService: Mission architecture supportIndustry: DefenseType: Defense Engineering+24 more
Brudis & Associates, Inc.
Columbia, MDInnovative, high quality, and responsive engineering solutions
WebsitePhone4 offices8 projects
Service: Highway & PlanningService: Roadway Geometrics, Widening, Reconstruction & ImprovementsIndustry: GovernmentType: Civil Engineering+72 more
C.C. Johnson & Malhotra, P.C.
Baltimore, MDProvide the Highest Level of Service to Our Clients While Delivering Value
WebsitePhone6 offices16 projects
Service: Buildings and FacilitiesService: HVAC Systems DesignIndustry: CommercialType: Civil Engineering+60 more
CGC Geoservices, LLC
Newark, DEGeotechnical drilling and engineering, led by engineers who know what engineers need.
WebsitePhone3 offices2 leaders
Service: Geotechnical Drilling and SamplingService: Rock CoringIndustry: TransportationType: Environmental Engineering+21 more
CSI Engineering
Laurel, MDCommon Sense In Engineering
Website2 offices4 leadersFounded 1987
Service: MEP Engineering DesignService: Mechanical EngineeringIndustry: FederalType: MEP+36 more
CYTRIC LLC
Columbia, MDOperation Technology Engineering and Management
WebsitePhone1 officeUpdated Jun 2026
Service: Commissioning, Controls & EnergyService: Building CommissioningIndustry: Electric UtilitiesType: MEP+28 more
Carlexson Consulting LLC
Pasadena, MDResilient solutions for the waters we call home.
WebsitePhone1 officeUpdated Jun 2026
Service: Program ManagementService: Coastal Restoration and EngineeringIndustry: Environmental & RemediationType: Coastal Engineering+14 more
Cartesian Science & Technology LLC
Fort Meade, MDAll knowledge are interdependent and form one idea.
Website2 officesUpdated Jun 2026
Service: Spectrum EngineeringService: Spectrum certification and assignmentIndustry: DefenseType: Telecom / RF Engineering+29 more
Celadon Technologies, LLC
Rockville, MDSolutions for Water, Wastewater, and Energy Efficiency
WebsitePhone1 officeUpdated Jun 2026
Service: Water Infrastructure EngineeringService: Small & Large Diameter Distribution MainsIndustry: Water SupplyType: Water / Wastewater Engineering+33 more
Compliance Corporation
Lexington Park, MDThe Mechanics of Business Technology
WebsitePhone1 officeFounded 1980
Service: Engineering & Logistics SupportService: Mechanical Products FabricationIndustry: DefenseType: Defense Engineering+17 more
DACCO SCI, INC.
Columbia, MDEngineering Solutions for a Sustainable Future
WebsitePhone1 office8 projects
Service: Corrosion EngineeringService: Cathodic Protection System Design and InstallationIndustry: Water SupplyType: Forensic Engineering+44 more