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.

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303rd Engineering Group, LLC

St. Louis, MO

Successful Partnerships, Successful Projects

WebsitePhone1 office5 projects1 leaders1 credentialsFounded 2005

Project: Airmen's Dormitories, Scott Air Force Base

Service: Electrical EngineeringService: Fire Alarm SystemsService: Energy ConservationIndustry: GovernmentIndustry: FederalType: MEP+18 more

A.P. Consulting Engineers, DPC

Elmont, NY

MEP, Lighting, Energy, and Life Safety Engineering

WebsitePhone2 offices8 credentialsUpdated Jun 2026

Service detail: MEP Services

Service: MEP ServicesService: Mechanical DesignService: Electrical DesignIndustry: Arts & CultureIndustry: ResidentialType: MEP+18 more

ACC & Engineering

Anaheim, CA

Plans Design | Calculation Reports | Prime G.C.

Website1 office6 projects6 credentialsUpdated Jun 2026

Project: Saddleback College Quad Access Road

Service: Engineering Plans DesignService: Architectural Plans DesignService: Civil Engineering DesignIndustry: EducationIndustry: GovernmentType: Civil Engineering+30 more

Advantus Engineers

Pittsburgh, PA

Advantus Engineers is a Pittsburgh-based engineering consulting practice founded in 2004, specializing in building commissioning, sustainability consulting, MEP assessments, construction quality assurance, and environmental compliance. It serves public, institutional, and commercial clients across the Pittsburgh region. Over more than two decades, the practice has supported LEED certifications, water quality programs, and on-call MEP engineering for clients including the Pittsburgh Water and Sewer Authority and the David L. Lawrence Convention Center.

WebsitePhone1 office7 projects9 leaders3 credentialsFounded 2004

Project: Western Butler County Authority Administration Building

Service: Building CommissioningService: Design and Submittal AnalysisService: Controls and Checklist FormulationIndustry: GovernmentIndustry: CommercialType: MEP+40 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

Alban Engineering, Inc.

Hunt Valley, MD

Engineering a New MEP

WebsitePhone1 office5 projects2 leadersUpdated Jun 2026

Project: Bay Brook Elementary/ Middle School

Service: Mechanical EngineeringService: Sustainable HVAC and Energy DesignService: Electrical EngineeringIndustry: EducationIndustry: ReligiousType: MEP+13 more

Allen Consulting Inc.

Norman, OK

Partner with Leaders in MEP Engineering

WebsitePhone1 office6 projects3 leaders1 credentialsFounded 1979

Project: Francis Tuttle - New Danforth Campus

Service: Mechanical EngineeringService: HVAC DesignService: Central Plant DesignIndustry: EducationIndustry: HealthcareType: MEP+19 more

Alliant Systems

Portland, OR

Alliant Systems is an integrated mechanical engineering and construction firm headquartered in Portland, Oregon, with offices in Eugene and Bend, Oregon, and Seattle, Washington. Founded approximately 25 years ago, Alliant provides in-house mechanical systems engineering, mechanical construction, HVAC and plumbing service, building automation, and energy consulting for commercial, institutional, and light-industrial clients across Oregon and Washington. The firm is known for a true design-build process that integrates engineers, project managers, and field personnel from concept through commissioning, and all principal engineers are LEED-certified.

WebsitePhone4 offices1 leadersUpdated Jun 2026

Service detail: Mechanical Systems Engineering

Service: Mechanical Systems EngineeringService: Design-Build Mechanical EngineeringService: BIM & Virtual Design and Construction (VDC)Industry: CommercialIndustry: HealthcareType: MEP+11 more

Allied Engineering Group

Tulsa, OK

Allied Engineering Group is a consulting engineering firm located in downtown Tulsa, Oklahoma, providing mechanical, electrical, plumbing, and medical gas engineering services for a wide variety of project types. Founded in 1999, AEG brings together decades of MEP industry experience and has served state military facilities, commercial buildings, and educational institutions including Tulsa Public Schools.

Website1 officeFounded 1999Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC Systems DesignService: Ground-Source Geothermal SystemsIndustry: DefenseIndustry: CommercialType: MEP+11 more

Alter Engineers

Oakland, CA

Fostering healthy, comfortable, and energy-conscious spaces for the Oakland and Bay Area community.

WebsitePhone1 office4 projectsUpdated Jun 2026

Project: UC Berkeley Hildebrand Hall HVAC Modernization

Service: Mechanical, Plumbing, and Fire Protection EngineeringService: Mechanical and Plumbing Engineer of RecordService: Design Drawing CreationIndustry: EducationIndustry: Research FacilitiesType: Mechanical Engineering+23 more

Amodu Engineering Solutions, LLC

St. Louis, MO

Building Relationships through Affordable Engineering Excellence

WebsitePhone1 office1 leaders17 credentialsFounded 2007Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: HVAC Load Calculation ServicesService: Energy Modeling and AnalysisIndustry: HealthcareIndustry: EducationType: MEP+27 more

Arco Engineering PC

Lyndhurst, NJ

Architectural Engineering Services

WebsitePhone2 offices6 projects2 leadersFounded 2006Updated Jun 2026

Project: 209 Mt Pleasant

Service: Mechanical, Electrical & Plumbing (MEP)Service: Electrical Systems DesignService: Mechanical HVAC DesignIndustry: CommercialIndustry: ResidentialType: Architecture & Engineering+27 more

Arium AE

Columbia, MD

Creative Vision Technical Precision

WebsitePhone2 offices5 projects3 leadersFounded 1988Updated Jun 2026

Project: CRISP Shared Services

Service: ArchitectureService: MEP EngineeringService: In-house MechanicalIndustry: GovernmentIndustry: DefenseType: Architecture & Engineering+19 more

Associated Technology, Incorporated

Fairfield, NJ

Engineering Design & Consulting

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Heating, Ventilation, and Air ConditioningService: Hydronic SystemsIndustry: CommercialIndustry: RetailType: MEP+55 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

Axis Infrastructure

Roswell, GA

We Create Cool Places Where People Want to Be

WebsitePhone1 office8 projectsUpdated Jun 2026

Project: MARTA Station Rehabilitation Program

Service: Technical Design and EngineeringService: Civil EngineeringService: Land Planning and Site DevelopmentIndustry: TransitIndustry: CommercialType: Architecture & Engineering+56 more

B2Q Associates

Andover, MA

Better Buildings. Impactful Results.

WebsitePhone1 office8 projects7 leaders4 credentialsFounded 2002

Project: Isenberg School of Management Addition

Service: Building DecarbonizationService: Carbon neutrality and net-zero designService: Electrification feasibility and designIndustry: EducationIndustry: LaboratoriesType: MEP+40 more

Bantam Engineering Inc.

Portland, OR

Bantam Engineering is a Portland, Oregon mechanical engineering and commissioning practice. It delivers HVAC design, plumbing design, and building commissioning for healthcare facilities, schools, government offices, airports, and semiconductor clean rooms. Owner Christine McKinley, PE holds licenses in Oregon, Washington, and California. Known for code fluency and a collaborative approach on construction sites and in permit negotiations, the practice specializes in radiant and dedicated outdoor air systems, clean-room mechanical design, and HVAC work within constrained existing buildings.

Website1 office7 projects1 leadersUpdated Jun 2026

Project: Behavioral Health Resource Center

Service: Mechanical EngineeringService: HVAC DesignService: Radiant HVAC DesignIndustry: HealthcareIndustry: EducationType: MEP+10 more

Barton Coe Vilamaa

Fort Wayne, IN

Spaces to Inspire

WebsitePhone1 office4 leaders4 credentialsFounded 1969Updated Jun 2026

Service detail: Architecture

Service: ArchitectureService: Architecture & Interior DesignService: Environmentally Conscious Planning & DesignIndustry: EducationIndustry: GovernmentType: Architecture & Engineering+44 more

Best Engineering, PLC

Roanoke, VA

High-performance HVAC experts.

Website1 office8 credentialsUpdated Jun 2026

Service detail: Building Commissioning

Service: Building CommissioningService: New Construction Commissioning (Cx)Service: Retro-Commissioning (RCx)Industry: EducationIndustry: HealthcareType: Mechanical Engineering+24 more

Breen Design Group

Torrance, CA

Breen Design Group is a Torrance, California-based multi-discipline firm providing architecture, structural, civil, and MEP engineering services under one roof. Established in 2001, its integrated teams deliver coordinated design for multifamily residential communities, affordable housing, mixed-use developments, schools, and civic facilities throughout Southern California. Completed projects include the Wilshire Grand, Jordan Downs Phase 3, Rogers Middle School, and Gardenhouse Beverly Hills.

WebsitePhone1 office4 projectsFounded 2001Updated Jun 2026

Project: Jordan Downs Phase 3

Service: ArchitectureService: Structural EngineeringService: Civil EngineeringIndustry: Multifamily ResidentialIndustry: Affordable HousingType: Architecture & Engineering+7 more

Bridgers & Paxton Consulting Engineers, Inc.

Albuquerque, NM

We make buildings come to life

WebsitePhone3 offices3 projects10 credentialsFounded 1951Updated Jun 2026

Project: Kirtland Air Force Base Microgrid Resiliency Project

Service: Mechanical EngineeringService: Heating, Ventilating, and Air Conditioning (HVAC)Service: Central Plant DesignIndustry: GovernmentIndustry: HealthcareType: MEP+45 more

Brittain Engineering, Inc.

Hickory, NC

Brittain Engineering, Inc. (BEI) is a multidisciplinary consulting engineering firm in Hickory, North Carolina, specializing in mechanical and electrical engineering for the construction industry. A registered professional corporation in North Carolina and South Carolina, BEI traces its practice to 1963 and provides professional engineering design services for military facilities, hospitals and medical centers, universities and schools, commercial buildings, correctional institutions, multifamily housing, industrial plants, churches, and airports. Additional services include life cycle cost studies, building performance modeling, energy analysis, fire protection design, and engineering studies.

WebsitePhone1 office3 leadersFounded 1963Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Electrical EngineeringService: Fire Protection EngineeringIndustry: DefenseIndustry: HealthcareType: MEP+9 more

Budlong

Glendale, CA

Budlong is a multi-disciplinary MEP engineering firm founded in 1958 and headquartered in Glendale, California. For over 65 years, Budlong has delivered mechanical, electrical, plumbing, fire protection, technology, and related engineering design services on renovation, new construction, and expansion projects across California. With offices in Glendale, Los Angeles, Camarillo, and Fremont, Budlong serves clients in healthcare, commercial, education, hospitality, industrial, multi-family residential, and public infrastructure markets, with LEED-accredited designers on staff.

Website4 offices12 leaders1 credentialsFounded 1958Updated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: InnovativeService: Sustainable HVAC Design Solutions For CommercialIndustry: HealthcareIndustry: CommercialType: MEP+17 more