Public engineering firm directory

Find engineering consulting firms by capability and location.

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A & S Engineers, Inc.

San Francisco, CA

Full-service Mechanical, Electrical, Plumbing Engineering and Commissioning Firm

Website1 office6 leadersUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC & Hydronic SystemsService: Energy Modeling & AnalysisIndustry: Multifamily ResidentialIndustry: Data CentersType: MEP+18 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

AK Consulting Services, Inc.

Jackson Heights, NY

Multidisciplinary Engineering, Special Inspections & Expediting Services

WebsitePhone1 officeUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Structural Design and AnalysisService: Cast-in-Place ConcreteIndustry: CommercialIndustry: RetailType: MEP+81 more

AKS Engineering & Forestry

Tualatin, OR

Practical Solutions. Designed to Last.

WebsitePhone1 officeFounded 1996Size Estimate: 600+ employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Site Design & GradingService: UtilitiesIndustry: InfrastructureIndustry: Land DevelopmentType: Civil Engineering+35 more

Aillet, Fenner, Jolly & McClelland, Inc.

AFJMc is a consulting engineering firm with more than 55 years of experience delivering civil, structural, mechanical, electrical, and transportation engineering services. Its portfolio includes roadways, bridges, utility and site design, industrial process systems, higher education facilities, healthcare facilities, government buildings, sports and recreation facilities, and commercial projects.

Website3 projectsUpdated Jun 2026

Project: Jimmie Davis Bridge (LA 511) Replace/Rehab

Service: Civil EngineeringService: Site PlanningService: Stormwater ManagementIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+37 more

Algebra AEC, LLC

Cleveland, OH

MEP & Sustainability Consulting

WebsitePhone1 office18 projects1 leadersFounded 2014Size Estimate: 5-30 employees

Project: Cleveland Clinic / CWRU - Health Education Campus

Service: MEP EngineeringService: HVAC EngineeringService: Plumbing EngineeringIndustry: HealthcareIndustry: EducationType: MEP+33 more

Allen + Shariff

Columbia, MD

Engineering Together

WebsitePhone7 offices3 projects9 leadersUpdated Jun 2026

Project: Wallops Mission Operations Command Center

Service: MEP EngineeringService: Mechanical EngineeringService: Electrical EngineeringIndustry: CommercialIndustry: ResidentialType: MEP+34 more

Alpha Commissioning Engineers, Inc.

Expert commissioning and MEP engineering solutions delivering precise building performance and sustainable design.

Website15 projects2 leadersFounded 2014Updated Jun 2026

Project: Mt. Greenwood - Annex II

Service: Commissioning ServicesService: New Building CommissioningService: Re-CommissioningIndustry: CommercialIndustry: GovernmentType: Mechanical Engineering+18 more

Andrews, Hammock & Powell, Inc.

Macon, GA

MEP engineering, commissioning, and construction administration services

WebsitePhone1 office3 projects6 leaders1 credentialsFounded 1988

Project: Arena at Southlake

Service: Mechanical EngineeringService: HVAC DesignService: Central Utility PlantsIndustry: CommercialIndustry: EducationType: MEP+29 more

Arris Engineering Group Ltd.

Plains, PA

Complete MEP Design Firm

WebsitePhone1 officeFounded 1996Updated Jun 2026

Service detail: Building Systems Engineering

Service: Building Systems EngineeringService: Building HVAC DesignService: Building Plumbing SystemsIndustry: EducationIndustry: HealthcareType: MEP+17 more

Aspire Engineering

Fairfax, VA

Aspire Engineering is a consulting engineering practice located in the Washington, DC metropolitan area that provides mechanical, electrical, plumbing, and fire protection engineering services. Project types include commercial, educational, healthcare, institutional, retail, recreation, residential, government, religious, and retrofits. In addition to design services, it provides construction administration services, sustainable and LEED design, energy and life cycle cost analysis, lighting analysis, existing building system evaluations, master planning, commissioning, BIM design, and peer review. It also offers educational and instructional seminars to clients to increase awareness and knowledge of the engineering design process, available systems, and design choices for projects to improve overall building efficiencies.

WebsitePhone1 office6 projects2 leadersFounded 2012Updated Jun 2026

Project: Episcopal High School Dormitory Buildings

Service: Mechanical EngineeringService: Heating, Ventilation, and Air Conditioning (HVAC) SystemsService: Energy Management Control SystemsIndustry: CommercialIndustry: RetailType: Mechanical Engineering+39 more

Astral Engineers P.C.

Rancho Cucamonga, CA

Professional Engineering Services - Mechanical, Electrical, Plumbing, Technology, Fire Protection

WebsitePhone2 offices11 projects3 leaders1 credentials1 publications

Project: Mohs & GI Procedure Room Renovation

Service: Mechanical EngineeringService: Air Handling Unit DesignService: Central Utility PlantsIndustry: HealthcareIndustry: FederalType: MEP+51 more

Axon Engineering Services LLC

Garfield, NJ

MEP engineering you can trust

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Electrical Systems

Service: Electrical SystemsService: Electrical Power Distribution SystemsService: Interior/Exterior Lighting SystemsIndustry: EducationIndustry: HealthcareType: MEP+23 more

BD Engineering, LLC

Farmingdale, NJ

Driving the Stupid Out of Construction

WebsitePhone1 office6 projects2 leaders1 credentialsUpdated Jun 2026

Project: Baldor Produce

Service: Electrical EngineeringService: Electrical DistributionService: Lighting DesignIndustry: Food & BeverageIndustry: IndustrialType: MEP+20 more

Batson Inc.

Little Rock, AR

MEP, Industrial, and Energy Engineering Services

WebsitePhone1 office3 leaders4 credentialsFounded 1984Size Estimate: 11 employees

Service detail: MEP Engineering

Service: MEP EngineeringService: Mechanical EngineeringService: Electrical EngineeringIndustry: CommercialIndustry: IndustrialType: MEP+13 more

Bell Engineering and Commissioning, LLC

Specialized MEP Technical Support, Commissioning, and Energy Consulting

Website10 projects2 leaders2 credentialsUpdated Jun 2026

Project: Google Washington DC Office Commissioning

Service: MEP Technical SupportService: Central Plant AssessmentsService: Air Distribution and Pumping SystemsIndustry: CommercialIndustry: FederalType: MEP+20 more

Building Energy Solutions

Nedrow, NY

Customized MEP design and construction services under one roof.

WebsitePhone1 office8 projects1 leaders6 credentialsFounded 2002

Project: Gordon Science Center Commissioning

Service: MEP EngineeringService: HVAC and MEP Engineering ServicesService: MEP Construction Documents Design and PreparationIndustry: EducationIndustry: HealthcareType: MEP+44 more

CJL Engineering, Inc.

Shelton, CT

Results you can count on

WebsitePhone1 office1 leaders2 credentialsFounded 1987Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Design Of HeatingService: VentilationIndustry: CommercialIndustry: RetailType: MEP+44 more

CSI Engineering

Portsmouth, NH

CSI Engineering is an MEP/FP engineering design practice based in Portsmouth, New Hampshire. Founded in 1996, CSI Engineering began by supporting general and mechanical contractors with coordination drawings, as-built drawings, and design-build projects. In 2007, CSI Engineering expanded into full MEP/FP engineering services for architects, contractors, developers, municipalities, and the military. The three principal engineers are involved directly in every project, bringing construction-background perspective to building systems design. CSI Engineering's primary service area is New England, with completed projects extending to other US states and internationally.

WebsitePhone1 office3 leadersFounded 1996Updated Jun 2026

Service detail: HVAC Design

Service: HVAC DesignService: New construction systemsService: Existing system renovationsIndustry: EducationIndustry: HealthcareType: MEP+27 more

Campbell Spellicy Engineering

Gainesville, FL

Full-service mechanical, electrical, and plumbing engineering for commercial, educational, and municipal projects across Florida.

WebsitePhone2 offices3 projects3 leaders2 credentialsFounded 2001

Project: Queen of Peace MEP Design

Service: Mechanical DesignService: HVAC & Chilled Water SystemsService: Building AutomationIndustry: CommercialIndustry: EducationType: MEP+11 more

Columbia Engineering Group

Washougal, WA

Engineering Excellence with Comprehensive Full Service Solutions

WebsitePhone1 office6 projects5 leadersUpdated Jun 2026

Project: Forensic Services Unit Chiller Replacement

Service: Mechanical EngineeringService: HVAC System DesignService: Building AutomationIndustry: CommercialIndustry: RetailType: MEP+70 more

Con'eer Engineering, Inc.

Billings, MT

Mechanical/Electrical Professional Engineers.

WebsitePhone1 office4 projects2 leaders6 credentialsFounded 1964

Project: Marathon Oil Operations Center

Service: Mechanical EngineeringService: HVAC Systems DesignService: Plumbing Systems DesignIndustry: CommercialIndustry: RetailType: MEP+28 more

Constantine Engineering Associates, LLC

Charleston, SC

Mechanical, Electrical, Plumbing, and Fire Protection Engineering Design Services

WebsitePhone2 offices5 projects4 leaders1 credentialsUpdated Jun 2026

Project: Owens-Thomas House HVAC System Upgrades

Service: Mechanical EngineeringService: HVAC Systems EngineeringService: Building Commissioning SupportIndustry: CommercialIndustry: EducationType: MEP+23 more

Crenshaw Consulting Engineers, Inc.

Raleigh, NC

Committed to Customer Satisfaction through Quality Engineering

WebsitePhone2 offices1 projects1 leadersFounded 1995Size Estimate: 44 employees

Project: The Eastern (North Hills Tower IV)

Service: Mechanical, Electrical & Plumbing EngineeringService: Mechanical DesignService: Heating, cooling, and ventilation systemsIndustry: CommercialIndustry: RetailType: MEP+66 more