Public engineering firm directory

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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 leadersFounded 2013Updated Jun 2026

Project: Mirador

Service: ArchitectureService: DesignService: Conceptual DesignIndustry: ResidentialIndustry: CommercialType: Architecture & Engineering+23 more

3Bears Technical Services

Hixson, TN

Experts in Nuclear Operations and Waste Management Solutions

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Engineering and Project Management

Service: Engineering and Project ManagementService: Mechanical EngineeringService: Electrical EngineeringIndustry: NuclearIndustry: Environmental & RemediationType: Environmental Engineering+31 more

A. G. Consulting Engineering, PC

New York, NY

A. G. Consulting Engineering, PC is an established MEP and construction management consulting practice. It offers mechanical, electrical, plumbing, fire protection, fire engineering, LEED consulting, special inspection, and construction management services for infrastructure, institutional, and public works projects.

WebsitePhone5 offices8 projects7 leaders13 credentialsFounded 1994

Project: NYCT Fulton Street Transit Center

Service: MEP EngineeringService: Mechanical and HVAC Systems DesignService: Electrical Systems EngineeringIndustry: TransitIndustry: RailType: MEP+17 more

AED Energy Services

Wyomissing, PA

Designing America's Energy Lifelines

WebsitePhone4 offices9 leaders4 credentialsFounded 1989Updated Jun 2026

Service detail: Chemical and Process Design

Service: Chemical and Process DesignService: Documentation and AnalysisService: Specialized CalculationsIndustry: Oil & GasIndustry: PetrochemicalType: Chemical Engineering+64 more

AES Group, Inc.

Parker, CO

Providing Engineering and Architecture Services Since 2002

WebsitePhone1 office4 projects5 leaders20 credentialsFounded 1988

Project: Pikes Peak National Cemetery Master Plan & Design

Service: Civil EngineeringService: Site DesignService: GradingIndustry: GovernmentIndustry: FederalType: Architecture & Engineering+38 more

AGRA Industries, Inc.

Merrill, WI

Design-build general contractor, steel fabricator, and equipment manufacturer for industrial agricultural facilities.

WebsitePhone1 office1 credentialsFounded 1962Updated Jun 2026

Service detail: Design and Engineering

Service: Design and EngineeringService: EPCM and Design-Build DeliveryService: Scheduling & ProcurementIndustry: AgricultureIndustry: Food & BeverageType: Industrial Engineering+22 more

ASD Consultants, Inc.

Austin, TX

Providing service with teamwork

WebsitePhone3 offices6 projects3 credentialsFounded 1994Updated Jun 2026

Project: Hays County Health Clinic Renovation

Service: Architecture and Engineering DesignService: Architectural DesignService: MEP EngineeringIndustry: GovernmentIndustry: EducationType: Architecture & Engineering+23 more

ATSI, Inc.

Amherst, NY

Changing the World Since 1977

WebsitePhone1 officeFounded 1977Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Front-End Engineering & Design (FEED)

Service: Front-End Engineering & Design (FEED)Service: FEL-1: Conceptual Engineering & FeasibilityService: FEL-2: Planning & Specification DevelopmentIndustry: Renewable EnergyIndustry: ChemicalsType: Process Engineering+39 more

Agarabi Engineering PLLC

New York, NY

Energy efficiency engineering and clean energy design for the built environment

WebsitePhone1 office3 projects2 leaders6 credentialsFounded 2014

Project: Domestic Hot Water and Pool Heating Systems Replacement Design

Service: MEP & Enclosure DesignService: Air-Source Heat Pump DesignService: Domestic Hot Water System DesignIndustry: Multifamily ResidentialIndustry: Affordable HousingType: Mechanical Engineering+30 more

Allen Construction Management Services Northwest, LLC

Portland, OR

Established in 2013 by Laurie Allen and Monique Allen, Allen Construction Management Services Northwest, LLC (ACMS Northwest) is an Oregon-based civil engineering and construction management practice. It provides professional services for public agencies and private-sector clients, with experience on major Pacific Northwest projects such as the City of Portland Secondary Treatment Expansion Program, Port of Portland PDXNEXT, and ODOT I-205 Abernethy Bridge.

WebsitePhone1 office3 projects7 leadersFounded 2013Updated Jun 2026

Project: Secondary Treatment Expansion Program

Service: Design-BuildService: Program ManagementService: Program SchedulingIndustry: GovernmentIndustry: FederalType: Civil Engineering+43 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

Alpha Terra Engineering

San Antonio, TX

Architecture Engineering Environment

WebsitePhone1 office5 projects1 leaders3 credentialsFounded 1997

Project: Overton-Brooks VAMC Parking Garage Addition

Service: Architectural and Engineering DesignService: Full-service Facility RenovationsService: New Construction DesignIndustry: GovernmentIndustry: FederalType: Architecture & Engineering+25 more

Bayside Engineering Group

Lynden, WA

Coker Automation and Safety By Design

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Coker Automation Technology

Service: Coker Automation TechnologyService: Bottom Unheading CartsService: Remote Top Unheading SystemsIndustry: Oil & GasIndustry: PetrochemicalType: Mechanical Engineering+17 more

Brown & Root Industrial Services, LLC

Baton Rouge, LA

Comprehensive engineering, construction, maintenance, turnarounds, and specialty services for industrial facilities.

Website4 offices1 credentialsUpdated Jun 2026

Service detail: Plan & Design

Service: Plan & DesignService: EngineeringService: EstimatingIndustry: IndustrialIndustry: Oil & GasType: Industrial Engineering+27 more

Building Energy Solutions Provider LLC

Tempe, AZ

Energy Engineering Service Provider

WebsitePhone1 office1 leadersSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Energy and Water Audits

Service: Energy and Water AuditsService: Building Systems OptimizationService: Building Operational Usage AnalysisIndustry: EducationIndustry: GovernmentType: Mechanical Engineering+24 more

CMM Inc.

Hudson, OH

Premier Engineering Design, Construction Support, and Maintenance Services

WebsitePhone1 office8 leadersFounded 1998Updated Jun 2026

Service detail: Construction Management

Service: Construction ManagementService: Peer Review and DesignService: Constructability ReviewIndustry: IndustrialIndustry: CommercialType: Civil Engineering+65 more

CSD Engineers, LLC

Pittsburgh, PA

Engineering & Management Solutions

WebsitePhone1 office2 leaders4 credentialsFounded 2008Updated Jun 2026

Service detail: Project Management and Controls

Service: Project Management and ControlsService: Project ManagementService: Project Controls and SchedulingIndustry: Oil & GasIndustry: PetrochemicalType: Civil Engineering+37 more

Carpenter Associates

Old Town, ME

Carpenter Associates is a full-facility engineering practice based in Old Town, Maine, with more than 50 years of experience. It delivers mechanical, electrical, structural, and civil engineering alongside permitting and construction services for architects, municipalities, school departments, and private-sector clients across Maine and New England. Direct client engagement and careful attention to initial costs and long-term maintenance are central to every project.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Civil / Site Design

Service: Civil / Site DesignService: Site Selection AssessmentService: Phase I Environmental Site AssessmentIndustry: GovernmentIndustry: EducationType: Civil Engineering+66 more

Cleanera Technologies Inc

Naperville, IL

Engineering a Sustainable Future with Safe, Innovative Solutions

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Project Management

Service: Project ManagementService: Project Concept DevelopmentService: Pre-Feasibility Studies and ReportsIndustry: HealthcareIndustry: HospitalityType: Architecture & Engineering+75 more

Corrosion Probe, Inc.

Centerbrook, CT

Preserving Infrastructure, One Solution at a Time.

WebsitePhone13 offices6 credentialsUpdated Jun 2026

Service detail: Materials & Corrosion

Service: Materials & CorrosionService: Material SelectionService: Damage Mechanism IdentificationIndustry: Pulp & PaperIndustry: Water SupplyType: Materials Engineering+30 more

Corval Group

Saint Paul, MN

We Build Confidence

WebsitePhone1 office5 projects2 leaders12 credentialsFounded 1921

Project: ONEOK Rockies Midstream Compressor Station Program

Service: Project DevelopmentService: Early-phase FeasibilityService: Scope DefinitionIndustry: Power GenerationIndustry: Oil & GasType: EPC+29 more

Cottrell & Cottrell, LLC

Fully integrated engineering and business services for the offshore, inland, and marine industries.

Website8 projects1 leaders1 credentialsUpdated Jun 2026

Project: TLP Life Extension Cost Projection Study

Service: Naval Architecture & Marine EngineeringService: Naval ArchitectureService: Marine EngineeringIndustry: Oil & GasIndustry: MarineType: Naval Architecture+33 more

Currier & Company, Inc.

Los Angeles, CA

Reliable engineering and consulting services by experienced professionals.

Website2 offices1 leadersUpdated Jun 2026

Service detail: Engineering

Service: EngineeringService: Fuel Facility Design & ConstructabilityService: Aviation Fueling & Hydrant SystemsIndustry: AviationIndustry: AirportsType: Civil Engineering+37 more

DLZ Corporation

Columbus, OH

Innovative Ideas | Exceptional Design | Unmatched Client Service

WebsitePhone1 office9 projects3 leaders5 credentialsSize Estimate: 500+ employees

Project: SR 161 at Maple Canyon Avenue

Service: Transportation EngineeringService: Interchange and Highway DesignService: Bridge Design and RestorationIndustry: Highways & RoadsIndustry: TransportationType: Architecture & Engineering+73 more