Public engineering firm directory

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120 Degreez

Los Angeles, CA

Redefining Technical Excellence

Website1 officeUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Electrical EngineeringService: Plumbing EngineeringIndustry: CommercialIndustry: HospitalityType: MEP+7 more

186 Engineering, LLC

Atlanta, GA

Electrical Forensic Engineering, Infrared Inspections, and Design

WebsitePhone1 office5 projects1 leaders5 credentialsUpdated Jun 2026

Project: Washington Harbour Flood Electrical Damage Assessment

Service: Electrical Forensic EngineeringService: Investigation Of Electrical SystemsService: ComponentsIndustry: CommercialIndustry: IndustrialType: Electrical Engineering+28 more

20/10 Engineering Group, LLC

Sustainable Designs | Better Engineering Vision

Website9 projectsUpdated Jun 2026

Project: Trinity International University - New Waybright Student Center

Service: Mechanical, Electrical, and Plumbing EngineeringService: HVAC and Climate Control SystemsService: Plumbing and Process Piping DesignIndustry: EducationIndustry: HealthcareType: MEP+26 more

29E6, LLC

Beaufort, SC

Collaborative structural engineering for architects and contractors.

WebsitePhone1 office2 projectsFounded 2017Size Estimate: 1-9 employeesUpdated Jun 2026

Project: Hilton Head Island Recreation Center Enhancement & Expansion

Service: Commercial EngineeringService: Residential Structural EngineeringService: Industrial New ConstructionIndustry: CommercialIndustry: ResidentialType: Structural Engineering+9 more

3 Phase Associates LLC

Chattanooga, TN

Electrical Engineering and Consulting Services

Website1 office2 credentialsFounded 2016Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Power System CalculationsService: Arc Flash AnalysisIndustry: UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+31 more

360 Engineering Group

Tulsa, OK

360 Engineering Group is a structural engineering firm with offices in Tulsa and Oklahoma City, Oklahoma, Manhattan, Kansas, and Dallas, Texas, holding professional engineer licenses in 49 states and Washington D.C. Its licensed engineers deliver structural design and analysis, BIM coordination, structural evaluation and rehabilitation, shop drawing preparation, peer reviews, and expert witness services for a broad range of building types and market sectors.

WebsitePhone4 offices4 projects6 leadersUpdated Jun 2026

Project: Block 34

Service: Structural Design and AnalysisService: Building Information ModelingService: Structural Evaluation and RehabilitationIndustry: CommercialIndustry: RetailType: Structural Engineering+15 more

3D Innovations, LLC

Honolulu, HI

Developing Ideas From Concept To Product

WebsitePhone1 office5 projectsFounded 2007Updated Jun 2026

Project: The BabyToon Silicone Baby Spoon

Service: Product Design & EngineeringService: 3D CAD Design & VisualizationService: 3D EngineeringIndustry: AerospaceIndustry: DefenseType: Mechanical Engineering+14 more

7 Oaks Engineering

Silverton, OR

Harmonizing the built environment with the natural.

WebsitePhone2 offices4 leaders3 credentialsSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Land Development

Service: Land DevelopmentService: Due Diligence and Feasibility StudiesService: Entitlement and Conceptual DesignIndustry: CommercialIndustry: ResidentialType: Civil Engineering+24 more

907 Architecture LLC

Palmer, AK

Straight-forward realist architecture and highly integrated client services.

WebsitePhone1 office1 leaders1 credentialsFounded 2015Updated Jun 2026

Service detail: Architectural Design Services

Service: Architectural Design ServicesService: ProgrammingService: Feasibility StudiesIndustry: CommercialIndustry: Multifamily ResidentialType: Architecture & Engineering+23 more

A & M Engineering and Environmental Services, Inc.

Tulsa, OK

Providing Quality Services for Over 30 Years

WebsitePhone4 offices5 projects2 credentialsFounded 1984Updated Jun 2026

Project: Cumberland Levee Repair at Lake Texoma

Service: Construction & Remediation ServicesService: Landfill ConstructionService: Impoundments & Water StructuresIndustry: Environmental & RemediationIndustry: FederalType: Environmental Engineering+72 more

A Squared Plus Engineering Support Group, LLC

Finksburg, MD

A Squared Plus Engineering Support Group, LLC (A2+ESG) is an engineering practice that specializes in mechanical, electrical, plumbing, and information transportation system design. It delivers planning, engineering support, system analysis, and inspections for commercial, residential, industrial, and institutional facilities, including specialized experience in public safety and correctional environments.

WebsitePhone1 office11 projects2 leadersUpdated Jun 2026

Project: Corola EMS Paramedic - Station 1

Service: MEP DesignService: Sustainable DesignService: HVAC DesignIndustry: ResidentialIndustry: CommercialType: MEP+25 more

A&J Consulting Engineering Services, P.C.

Clifton, NJ

A&J Consulting Engineering Services, P.C. is a full-service MEP consulting engineering practice headquartered in Clifton, New Jersey. Founded in 1988 by Jay Agarwal, P.E., A&J delivers mechanical, electrical, and plumbing systems design, pharmaceutical validation and commissioning, construction administration, sustainable design, and high-technology systems consulting. Clients span the pharmaceutical, biotechnology, commercial, educational, governmental, industrial, and religious sectors across the New York-New Jersey region.

WebsitePhone1 office5 projects1 leadersFounded 1988Updated Jun 2026

Project: Validation of an Aseptic Vial Filling Line

Service: MEP Systems DesignService: HVACService: Electrical SystemsIndustry: PharmaceuticalIndustry: Life SciencesType: MEP+40 more

A&R Engineering

Marietta, GA

A&R Engineering is a civil engineering firm specializing in traffic and transportation engineering, headquartered in Marietta, Georgia. A&R has served clients across Georgia, South Carolina, and Alabama for over 20 years, guiding projects from due diligence through construction completion. The team works with developers, architects, attorneys, and public agencies on retail, residential, industrial, mixed-use, educational, and medical developments, delivering traffic impact studies, intersection and signal design, permitting support, construction oversight, and expert witness services.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Traffic Studies

Service: Traffic StudiesService: Traffic Impact StudiesService: Intersection Control Evaluation StudiesIndustry: TransportationIndustry: Land DevelopmentType: Civil Engineering+22 more

A-Tech/Northwest, Inc.

Get an unbiased answer! Our only business is Roof Consulting

Website10 credentialsFounded 1976Updated Jun 2026

Service detail: Roof Consulting

Service: Roof ConsultingService: Visual Roof InspectionsService: Roof Problem AnalysisIndustry: GovernmentIndustry: CommercialType: Materials Testing+14 more

A.M. Structural Engineering

A.M. Structural Engineering is a consulting structural engineering firm providing services for residential, commercial, institutional, industrial, government, and religious structures. Founded by David Wagner, P.E., its engineers have served as engineer-of-record on thousands of projects, ranging from residential deck additions to multi-story historic building renovations and additions. The team of three licensed structural engineers and one technician brings more than 50 years of combined consulting experience and holds licensure in Minnesota, Wisconsin, Colorado, Iowa, South Dakota, Wyoming, and North Dakota.

Website1 leadersSize Estimate: 4 employeesUpdated Jun 2026

Service detail: Existing Structure Services

Service: Existing Structure ServicesService: Evaluation of building conditionsService: Design and planning of repair programsIndustry: CommercialIndustry: ResidentialType: Structural Engineering+17 more

A.S. Engineering Services

New York, NY

Structural Engineering & Design

WebsitePhone3 offices6 projects1 leaders2 credentialsUpdated Jun 2026

Project: Nightingale School

Service: Structural EngineeringService: Residential Structural EngineeringService: Commercial Structural EngineeringIndustry: CommercialIndustry: ResidentialType: Structural Engineering+6 more

A.W. Schultz Inc.

Shawnee, KS

Trusted Engineering and Integration Since 1977

WebsitePhone1 office3 credentialsFounded 1977Updated Jun 2026

Service detail: Process Control and SCADA Systems

Service: Process Control and SCADA SystemsService: Process Visualization & HMI/OITService: PLC ProgrammingIndustry: Water SupplyIndustry: WastewaterType: Automation & Controls+25 more

A1 Consulting Group, Inc.

Raleigh-Durham, NC

Leaders in Design, Construction, and Environmental Services

WebsitePhone1 office8 projects1 leaders5 credentialsFounded 1971

Project: RDU Airport Terminal 2 Expansion

Service: Engineering and Design ServicesService: Geotechnical and Geological EngineeringService: Civil and Site EngineeringIndustry: AirportsIndustry: CommercialType: Civil Engineering+41 more

AAB Engineering

Sand Springs, OK

AAB Engineering is a civil engineering and land surveying firm based in Sand Springs, Oklahoma, serving residential and commercial site development clients. Founded in 2011 by Alan Betchan, P.E., CFM, it focuses on helping clients develop their vision into a financially viable project. Alan brings more than 17 years of experience working with municipalities and developers on projects ranging from multimillion-dollar street rehabilitation to small business site designs and programmatic clients spanning four states.

WebsitePhone1 office1 leadersFounded 2011Updated Jun 2026

Service detail: Residential Site Design

Service: Residential Site DesignService: Commercial Site DesignService: Land SurveyingIndustry: ResidentialIndustry: CommercialType: Civil Engineering+7 more

AAI Environmental Corporation

Ashland City, TN

Professional environmental site assessments and due diligence services nationwide

WebsitePhone1 office6 projects1 credentialsFounded 1995Updated Jun 2026

Project: Windmill Farm Initial Planning Study

Service: Phase I Environmental Site Assessment (ESA)Service: Phase II Environmental Site AssessmentService: Phase III Environmental AssessmentIndustry: CommercialIndustry: ResidentialType: Environmental Engineering+34 more

AB Consultants, Inc.

Lanham, MD

Multidisciplinary engineering and support services in the Baltimore-Washington area

WebsitePhone2 offices1 projects1 credentialsFounded 1993Updated Jun 2026

Project: WMATA Bus System Renovations

Service: Land PlanningService: Zoning StudiesService: Land Use Feasibility StudiesIndustry: GovernmentIndustry: TransportationType: Civil Engineering+82 more

ABAM Engineers Inc.

Houston, TX

Driving Innovation and Digitization in Engineering

WebsitePhone2 officesUpdated Jun 2026

Service detail: Civil and Infrastructure Engineering

Service: Civil and Infrastructure EngineeringService: Site Analysis and DesignService: Site Master PlanningIndustry: CommercialIndustry: IndustrialType: Civil Engineering+38 more

ABD Engineering & Design

Grand Rapids, MI

Acoustics, noise, vibration & audio-visual systems

Website2 officesFounded 1962Updated Jun 2026

Service detail: Architectural Acoustics

Service: Architectural AcousticsService: Acoustical DesignService: Acoustical EngineeringIndustry: AgricultureIndustry: Arts & CultureType: Acoustic Consulting+20 more

ABD Engineers & Surveyors, LLP

Schenectady, NY

ABD Engineers & Surveyors, LLP is a civil engineering and land surveying firm founded in 1987 and headquartered in Schenectady, New York. Serving clients throughout Upstate New York and the Capital Region, it has built its reputation on residential, commercial, and municipal projects including subdivisions, site developments, senior housing, hotels, schools, correctional facilities, and commercial parks. ABD's partners bring deep expertise in the New York State permitting process, working with NYSDEC, NYSDOT, USACE, FEMA, and local municipal boards.

WebsitePhone1 office2 leadersFounded 1987Size Estimate: 15 employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Site Design & DevelopmentService: Stormwater Management & Drainage DesignIndustry: ResidentialIndustry: CommercialType: Civil Engineering+17 more