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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18 Grados Corp

San Juan, PR

18 Grados Design is a multidisciplinary design-build architecture and engineering practice based in Puerto Rico, specializing in contemporary design and comprehensive project development. Founded in 2013, the practice delivers a diverse range of services encompassing architecture, civil and structural engineering, permitting, and construction management. It supports projects across multiple sectors, ranging from custom single-family residences to complex retail expansions and mixed-use developments. By integrating design and construction under a single collaborative framework, 18 Grados Design streamlines the execution of both small-scale renovations and large-scale commercial developments.

Website1 office6 projects3 leaders
Service: ArchitectureService: DesignIndustry: ResidentialType: Architecture & Engineering+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 projects
Service: MEP Systems DesignService: HVACIndustry: PharmaceuticalType: MEP+42 more

AEPC Group, LLC

Santa Clarita, CA

We build confidence

WebsitePhone1 office1 projects
Service: ArchitectureService: Schematic and Conceptual Design DevelopmentIndustry: AerospaceType: Architecture & Engineering+42 more

AMG, Inc.

Dayton, OH

Industrial Facility Engineering

WebsitePhone1 office12 projects
Service: Process EngineeringService: PFD and P&ID DevelopmentIndustry: ChemicalsType: Automation & Controls+75 more

ANRON

New York, NY

Founded in 1965, ANRON is a privately owned, full-service HVAC manufacturing, installation, and maintenance organization serving metropolitan New York, including the five boroughs of New York City and Nassau and Suffolk Counties on Long Island. Operating through specialized units ANRON Air Systems, Inc. and ANRON Mechanical Services, Inc., it provides vertically integrated sheet metal fabrication, mechanical installation, and ongoing maintenance. The organization serves premier construction managers and facility owners across diverse sectors, including commercial offices, retail centers, healthcare facilities, educational campuses, research laboratories, and correctional institutions.

Website1 office32 projects1 leaders
Service: HVAC InstallationService: Commercial and Institutional HVAC ConstructionIndustry: CommercialType: Mechanical Engineering+13 more

AT Engineering Services

Long Beach, CA

AT Engineering Services is a California consulting engineering practice providing mechanical, process, oil and gas, energy, petrochemical, chemical, pharmaceutical, industrial, and power engineering services. AT Engineering Services has operated since 1993 and supports clients with technical engineering design and consulting.

WebsitePhone1 officeFounded 1993
Service: Mechanical and Plumbing EngineeringService: Process EngineeringIndustry: Oil & GasType: Mechanical Engineering+12 more

AVH Technology Partners

Boston, MA

Your Partners in Technology.

WebsitePhone3 offices8 leaders
Service: Audiovisual StrategyService: Return-to-Work StrategiesIndustry: CommercialType: Telecom / RF Engineering+16 more

AccuTec Services, Inc.

Lee's Summit, MO

Precision commissioning, testing, and cleanroom certification services nationwide.

WebsitePhone1 office2 leaders
Service: Building Systems CommissioningService: Design Phase Commissioning & ReviewIndustry: HealthcareType: MEP+24 more

Acoustical Systems Inc

Dayton, OH

More Than 45 Years Experience in Noise Control

WebsitePhone1 office3 credentials
Service: Acoustical Consulting and EngineeringService: Architectural Acoustics ConsultingIndustry: CommercialType: Acoustic Consulting+18 more

Acropolis Engineers

Raleigh, NC

Engineering. Delivered.

WebsitePhone2 offices1 projects
Service: Equipment Optimization & MaintenanceService: Equipment Installation & CommissioningIndustry: Automation & ControlsType: Automation & Controls+16 more

Advance Design Consultants Inc

San Jose, CA

Experience. Passion. Excellence.

WebsitePhone1 office7 projects
Service: Architecture & PlanningService: Architectural DesignIndustry: CommercialType: Architecture & Engineering+40 more

Advanced Creative Industries

Evansville, IN

Customer-guided and self-directed engineering and design-build services

WebsitePhone1 office7 projects
Service: Industrial Machinery & EquipmentService: Process Skid EngineeringIndustry: ManufacturingType: Process Engineering+28 more

Advanced Integration Group, Inc.

McKees Rocks, PA

Be in Control.

WebsitePhone1 office2 projects
Service: Control Systems Design and ImplementationService: PLC ProgrammingIndustry: Power GenerationType: Automation & Controls+39 more

Advanced Professional Engineering Consultants

Corona, CA

Built for real world project delivery

WebsitePhone1 office5 credentials
Service: Mechanical Engineering & HVAC DesignService: HVAC System Design and Air DistributionIndustry: CommercialType: MEP+48 more

Aerospace Technical Services LLC

Boston, MA

Best-in-Class Data Science Solutions for Aerospace, Energy, and Health Systems

Website4 offices7 projects5 leaders
Service: Data ScienceService: Machine LearningIndustry: AerospaceType: Aerospace Engineering+13 more

Affiliated Engineers, Inc.

Madison, WI

Affiliated Engineers, Inc. (AEI) provides engineering leadership for complex projects, supporting clients who improve lives and protect the future. From better medicines, climate-sensitive energy supply, and sustainable utilization to cutting-edge paradigm technologies and education at the highest level, our mission drives us to find unique solutions to solve our clients’ challenges. In so doing, we are an integral element of innovation, positively impacting society.

WebsitePhone2 offices1 leaders
Service: Electrical and Energy SystemsService: All-Electric DesignIndustry: HealthcareType: Electrical Engineering+14 more

Ahavah Automation

Dallas, TX

Turnkey Installation & System Integration

WebsitePhone1 office7 projects
Service: Electrical EngineeringService: Electrical DesignIndustry: ManufacturingType: Automation & Controls+27 more

Akiva AI, LLC

Leesburg, VA

Committed to Excellence

Website1 office3 projectsFounded 2019
Service: AI EngineeringService: Multi-Agent SystemsIndustry: SoftwareType: Software Engineering+54 more

AlfaTech

Harmonizing Relationships, Sustainability and Innovation

Website10 projects13 leadersUpdated Jun 2026
Service: MEP EngineeringService: Mechanical Engineering DesignIndustry: CommercialType: MEP+67 more

Ambitech Engineering Corporation

Ambitech Engineering Corporation is a full-service provider of engineering design services with deep expertise in Front-End Loading (FEL/FEED) work. For clients wanting an integrated delivery model, Ambitech's position as part of Zachry Group gives clients the option to transition from FEED into a fully integrated, construction-led EPC model. It has 35 years of experience serving the Energy & Chemical, Food & Beverage, Pharma & Biotech, and Manufacturing industries.

WebsiteUpdated Jun 2026
Service: Front-End Loading / FEED EngineeringService: Engineering Design ServicesIndustry: Oil & GasType: Process Engineering+7 more

Amodu Engineering Solutions, LLC

St. Louis, MO

Building Relationships through Affordable Engineering Excellence

WebsitePhone1 office1 leaders
Service: Mechanical EngineeringService: HVAC Load Calculation ServicesIndustry: HealthcareType: MEP+29 more

AnSight LLC

Ann Arbor, MI

Insights Through Analysis

WebsitePhone1 office3 projects
Service: HVAC and Building Systems OptimizationService: HVAC Performance OptimizationIndustry: Data CentersType: Mechanical Engineering+36 more

Anguil Environmental Systems

Milwaukee, WI

Innovative Pollution Control Technologies

WebsitePhone1 office3 credentials
Service: Air Pollution ControlService: Regenerative Thermal Oxidizers (RTOs)Industry: ManufacturingType: Environmental Engineering+24 more

Applied Engineering Group P.S.C.

Rio Piedras, PR

Applied Engineering Group P.S.C. is a professional engineering firm established in 2006 in San Juan, Puerto Rico, providing design, construction, and project compliance solutions to a broad range of industries. It specializes in high-compliance projects for regulated sectors including pharmaceutical, petrochemical, hospitality, and federal government clients. Applied Engineering Group offers services spanning project development, construction management, electrical systems assessment and inspection, ADA/UFAS compliance, cGMP audits, and validation and regulatory compliance support. It also operates subdivisions for electrical and general construction (Applied Construction) and laboratory products distribution (Novateq).

WebsitePhone1 office5 leaders
Service: Project DevelopmentService: Construction ManagementIndustry: PharmaceuticalType: Civil Engineering+12 more