Public engineering firm directory

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ARCHÉ Consulting Group, LLC

Springfield, VA

The Best Team for Project Success

WebsitePhone2 offices1 leadersFounded 2017Updated Jun 2026

Service detail: Program and Project Management

Service: Program and Project ManagementService: Construction ManagementService: Architecture and EngineeringIndustry: GovernmentIndustry: FederalType: Owner's Engineer+31 more

ARGO Systems, LLC

Baltimore, MD

Innovative Construction Solutions

WebsitePhone6 offices1 credentialsFounded 2004Size Estimate: 50-100 employeesUpdated Jun 2026

Service detail: Program and Project Management

Service: Program and Project ManagementService: Project Planning and SchedulingService: Budget and Cost ControlIndustry: GovernmentIndustry: DefenseType: Electrical Engineering+26 more

Alpha Sieger Engineering Services

Gaithersburg, MD

Expert Transportation Engineering & Construction Management Services

WebsitePhone1 office2 projects1 leadersFounded 2014Updated Jun 2026

Project: DDOT Federal-Aid Citywide Pavement Restoration IDIQ Contract

Service: Transportation, Traffic, and Safety StudiesService: Vision Zero StudiesService: Highway Safety Improvement Program (HSIP) StudiesIndustry: Highways & RoadsIndustry: TransportationType: Transportation Engineering+11 more

Apex Project Solutions LLC

Westminster, MD

Apex Project Solutions LLC provides program, project, design, and construction management support to clients planning, designing, and building mission critical facilities. Its experienced technical staff manages the full project lifecycle from inception to completion, handling budgets, schedules, design coordination, stakeholder communication, construction liaison, and scopes to deliver complex facilities on time and within budget.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Program and Project Management

Service: Program and Project ManagementService: Design ManagementService: Construction ManagementIndustry: Mission Critical FacilitiesIndustry: GovernmentType: Owner's Engineer

Engineering Design Technologies, Inc.

Marietta, GA

Engineering Design Technologies (EDT) is a fully integrated engineering and design-build firm founded in 1993 and headquartered in Marietta, Georgia. EDT delivers multi-discipline engineering, architecture, construction, and program management across federal, municipal, commercial, healthcare, aviation, and transportation markets from seven offices spanning the Southeast, Mid-Atlantic, and US Virgin Islands. Its four divisions cover engineering, architecture (EDT-THA), construction (EDT Constructors), and development (EDT Development).

WebsitePhone7 offices6 projects1 credentialsFounded 1993Size Estimate: 50-200 employees

Project: CDC Emergency Operations Center

Service: Civil EngineeringService: Stormwater drainage assessment and modelingService: Transportation engineeringIndustry: DefenseIndustry: FederalType: Architecture & Engineering+47 more

Hayat Brown LLC

Washington, DC

Experience. Precision. Integrity. Delivered

WebsitePhone5 offices5 projects6 leadersUpdated Jun 2026

Project: DC Power Line Undergrounding (DC PLUG)

Service: Engineering ServicesService: Design & EngineeringService: Construction Management & InspectionIndustry: GovernmentIndustry: FederalType: Civil Engineering+15 more

Merrick & Company

Greenwood Village, CO

Engineering, Architecture, Geospatial.

WebsitePhone28 offices8 projects2 leaders1 credentialsFounded 1954

Project: Frozen Food Production Facility Master Planning

Service: EngineeringService: Civil EngineeringService: Structural EngineeringIndustry: AerospaceIndustry: Power GenerationType: Architecture & Engineering+46 more

OAASYS, Inc.

Bethesda, MD

Delivering Excellence in Engineering, IT & Management

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Engineering & Management Services

Service: Engineering & Management ServicesService: Systems EngineeringService: Construction ManagementIndustry: GovernmentIndustry: FederalType: Software Engineering+10 more

Point Blank Technologies Inc

Ellicott City, MD

We hit your objectives. Every time.

WebsitePhone1 office7 leaders1 credentialsFounded 2011Updated Jun 2026

Service detail: Systems and Software Engineering

Service: Systems and Software EngineeringService: Cybersecurity and Systems Vulnerability AnalysisService: RF and Wireless TechnologiesIndustry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+19 more

WarFighter LLC

Patuxent River, MD

Digital Transformation

Website1 officeUpdated Jun 2026

Service detail: Engineering

Service: EngineeringService: Decision EngineeringService: Digital EngineeringIndustry: DefenseIndustry: FederalType: Defense Engineering+9 more

Wave Civil Llc

Alexandria, VA

Client-centric, cost-effective civil engineering design and construction management

WebsitePhone2 offices9 projects1 leadersFounded 2019Updated Jun 2026

Project: Potomac River Tunnel Design-Build Project

Service: Program and Project ManagementService: Water and Sewer Program ManagementService: Staff AugmentationIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+21 more