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

3 Rocks Engineering & Surveying

CaƱon City, CO

Colorado Civil, Structural, & Land Surveying Experts

WebsitePhone3 offices9 projects2 leadersSize Estimate: 11-50 employeesUpdated Jun 2026

Project: Love's Travel Stop & RV Park Designs

Service: Civil EngineeringService: Residential and Commercial Site DevelopmentService: Oil and Gas Civil SupportIndustry: CommercialIndustry: ResidentialType: Civil Engineering+28 more

5D Architecture & Engineering, PLLC

Lynbrook, NY

Full-Service Architecture & Engineering Design

WebsitePhone1 office9 projects2 leadersFounded 2009Updated Jun 2026

Project: Eastern Mirage Hotel & Medical Center

Service: Architectural DesignService: Programming and Master PlanningService: Zoning Compliance and ExpeditingIndustry: ResidentialIndustry: Multifamily ResidentialType: Architecture & Engineering+22 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

A2H

Memphis, TN

Full service planning and design.

Website5 offices5 projects16 leaders2 credentialsFounded 2022Updated Jun 2026

Project: Pacific Industries Manufacturing Facility

Service: ArchitectureService: Interior DesignService: Master PlanningIndustry: HealthcareIndustry: EducationType: Architecture & Engineering+60 more

ABP Engineering

Omaha, NE

Precision in Practice

WebsitePhone1 officeUpdated Jun 2026

Service detail: Process Engineering

Service: Process EngineeringService: Process Design and ModelingService: Process SimulationIndustry: Biomass & BioenergyIndustry: MiningType: Structural Engineering+32 more

ADC Engineering

Hanahan, SC

ADC's Track Record Speaks for Itself

WebsitePhone3 offices17 projectsUpdated Jun 2026

Project: CHS Taxiways Repair

Service: Civil EngineeringService: Site PlanningService: Site Selection and Property Data ReportIndustry: AviationIndustry: CommercialType: Aviation Engineering+66 more

AEPC Group, LLC

Santa Clarita, CA

We build confidence

WebsitePhone1 office1 projects4 leadersUpdated Jun 2026

Project: Offset Success for Aviation Client

Service: ArchitectureService: Schematic and Conceptual Design DevelopmentService: Construction Documents and SpecificationsIndustry: AerospaceIndustry: AviationType: Architecture & Engineering+40 more

AHBL, Inc.

Tacoma, WA

Shaping Stronger Communities

WebsitePhone4 offices14 projects8 leaders27 credentialsFounded 1969

Project: Carla Peperzak Middle School

Service: Civil EngineeringService: Site Development SolutionsService: Stormwater Management SystemsIndustry: EducationIndustry: HealthcareType: Civil Engineering+41 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

AMG, Inc.

Dayton, OH

Industrial Facility Engineering

WebsitePhone1 office12 projects1 leaders2 credentials2 publications

Project: Calcium Carbonate Production Plant

Service: Process EngineeringService: PFD and P&ID DevelopmentService: Material and Energy Balance SimulationIndustry: ChemicalsIndustry: Food & BeverageType: Automation & Controls+73 more

ANS

Scotch Plains, NJ

Engineering with integrity & purpose.

WebsitePhone1 office7 projects12 leadersSize Estimate: 100-300 employeesUpdated Jun 2026

Project: The Virginia Vanguard

Service: Civil, Site & Land DevelopmentService: Site Development & PermittingService: Regulatory Coordination & RepresentationIndustry: Renewable EnergyIndustry: SolarType: Civil Engineering+57 more

ANZ Consulting Engineering

New York, NY

Engineering The Future

Website1 office1 credentialsUpdated Jun 2026

Service detail: MEP & Fire Protection Engineering

Service: MEP & Fire Protection EngineeringService: Mechanical SystemsService: Electrical SystemsIndustry: CommercialIndustry: ResidentialType: MEP+19 more

ATOKA, Inc.

Hot Springs, AR

Engineering and Environmental Consultants

WebsitePhone2 offices1 projects7 leadersFounded 1994Updated Jun 2026

Project: ATOKA Bioremediation Project

Service: Civil EngineeringService: Strategic Planning and Land UseService: Infrastructure DevelopmentIndustry: Environmental & RemediationIndustry: GovernmentType: Civil Engineering+42 more

Abonmarche Consultants, Inc.

Many Disciplines One Team

Website2 projects10 credentials2 publicationsFounded 1979Size Estimate: 200-250 employeesUpdated Jun 2026

Project: Haven Hollow Park Improvements

Service: Civil EngineeringService: Stormwater ManagementService: Utility EngineeringIndustry: GovernmentIndustry: InfrastructureType: Architecture & Engineering+57 more

Above Group

Melbourne, FL

Above the Standard. Above Expectations.

WebsitePhone1 office4 projectsFounded 2014Updated Jun 2026

Project: Perry Point VA Campus Plaza Improvements

Service: Mechanical EngineeringService: HVAC System DesignService: Air Distribution SystemsIndustry: GovernmentIndustry: FederalType: MEP+33 more

Accurate Group, Inc.

Lincolnshire, IL

A solution-oriented international organization experienced in engineering and IT services.

Website1 office7 projectsFounded 1994Size Estimate: 25-100 employeesUpdated Jun 2026

Project: Grand Ave. Ramp Reconstruction

Service: Civil EngineeringService: Land Development and Real Estate SupportService: Infrastructure Planning and OversightIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+36 more

Adico, LLC

Friendswood, TX

Texas Civil Engineering Professionals

WebsitePhone1 office3 projectsUpdated Jun 2026

Project: Iowa Colony City Engineer

Service: Civil EngineeringService: Site DevelopmentService: Land Development & Master PlanningIndustry: EducationIndustry: CommercialType: Civil Engineering+40 more

Affinis

Overland Park, KS

Civil Engineering and Surveying for the Kansas City Region

WebsitePhone1 office4 projects11 leaders2 credentialsFounded 2001

Project: Cambridge Street and State Line Road Intersection Realignment

Service: Roadway EngineeringService: Residential Street DesignService: Thoroughfare Planning and DesignIndustry: GovernmentIndustry: FederalType: Civil Engineering+29 more

Akana

Portland, OR

Engineering, Design & Construction Services, Plus Advisory and Grant Support

WebsitePhone5 offices5 projects1 leadersUpdated Jun 2026

Project: New Taholah K-12 School

Service: Engineering ServicesService: Civil EngineeringService: Structural EngineeringIndustry: FederalIndustry: GovernmentType: Civil Engineering+34 more

Alan Gerwig & Associates, Inc.

Creating Beautiful Projects Since 1998

Website12 projects2 leaders1 credentialsFounded 1998Updated Jun 2026

Project: Bryant Park Seawall Replacement

Service: Civil EngineeringService: Site Development & Due DiligenceService: Water Resources & DrainageIndustry: GovernmentIndustry: EducationType: Civil Engineering+14 more

Allana Buick & Bers, Inc.

Palo Alto, CA

Making Buildings Perform Better

WebsitePhone1 office3 leaders14 credentials3 publicationsFounded 1987

Service detail: Building Envelope

Service: Building EnvelopeService: Curtain Wall & GlazingService: Roofing & WaterproofingIndustry: CommercialIndustry: ResidentialType: Architecture & Engineering+25 more

Alliance Engineers & Project Consultants

Beaumont, TX

Multidisciplined EPCM

WebsitePhone1 office5 projects1 leadersSize Estimate: 50-200 employeesUpdated Jun 2026

Project: Bringing Ground-Breaking Water-from-Air Technology to Market

Service: Project DevelopmentService: Phased Front-End LoadingService: Front-End Engineering DesignIndustry: Carbon CaptureIndustry: ChemicalsType: Automation & Controls+43 more

Alpha Corporation

Dulles, VA

Where Engineering Meets Adventure

WebsitePhone1 office3 projects6 leaders4 credentialsFounded 1979

Project: Hampton Roads Bridge-Tunnel (HRBT) Expansion Design-Build Project

Service: Engineering DesignService: Civil EngineeringService: Structural EngineeringIndustry: FederalIndustry: TransportationType: Civil Engineering+28 more