Public engineering firm directory

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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 & M Engineering and Environmental Services, Inc.

Tulsa, OK

Providing Quality Services for Over 30 Years

WebsitePhone4 offices5 projects2 credentialsFounded 1984Updated Jun 2026

Project: Cumberland Levee Repair at Lake Texoma

Service: Construction & Remediation ServicesService: Landfill ConstructionService: Impoundments & Water StructuresIndustry: Environmental & RemediationIndustry: FederalType: Environmental Engineering+72 more

A.T.E. Solutions, Inc.

El Segundo, CA

When All Systems Must be Ready to Go

WebsitePhone2 offices1 projects3 credentialsUpdated Jun 2026

Project: US Navy High-Speed I/O Test Solution Demonstration

Service: Test Engineering ConsultingService: Automated Test Equipment SelectionService: Test Program DevelopmentIndustry: ElectronicsIndustry: GovernmentType: Electrical Engineering+23 more

A.W. Schultz Inc.

Shawnee, KS

Trusted Engineering and Integration Since 1977

WebsitePhone1 office3 credentialsFounded 1977Updated Jun 2026

Service detail: Process Control and SCADA Systems

Service: Process Control and SCADA SystemsService: Process Visualization & HMI/OITService: PLC ProgrammingIndustry: Water SupplyIndustry: WastewaterType: Automation & Controls+25 more

AE Works

Sewickley, PA

We Make Building Projects a Better Value

WebsitePhone2 offices15 projects1 leaders23 credentials3 publications

Project: Bay Pines VA Medical Center, Electronic Health Records Modernization

Service: Architecture & Interior DesignService: Programming and Test FitsService: Master Planning and Space ConsolidationIndustry: CommercialIndustry: Multifamily ResidentialType: Architecture & Engineering+46 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

AIRTEC, Inc.

California, MD

Global Airborne Mission Solutions

WebsitePhone1 office3 leaders14 credentialsUpdated Jun 2026

Service detail: ISR Operations

Service: ISR OperationsService: Aircraft ModificationService: Aircraft Maintenance, Repair, and Overhaul (MRO)Industry: DefenseIndustry: FederalType: Aviation Engineering+15 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

ARRO Consulting, Inc.

Lititz, PA

Your trusted partner for municipal engineering.

WebsitePhone13 offices8 projects4 leadersFounded 1946Size Estimate: 100-300 employees

Project: Upper Uwchlan Township Municipal Authority Administrator

Service: Civil & MunicipalService: Appointed Engineer representationService: Roadway and Infrastructure RehabilitationIndustry: GovernmentIndustry: UtilitiesType: Civil Engineering+50 more

ASG Solutions Corporation

San Diego, CA

ASG Solutions Corporation is a San Diego-based professional services provider supporting critical federal and military missions globally. It specializes in delivering tailored solutions across engineering, construction management, environmental services, information technology, and defense logistics.

WebsitePhone1 office10 projects1 leadersFounded 2005Updated Jun 2026

Project: Technical Support Services for NAVFAC SE DCBL/DC 4

Service: Engineering ServicesService: Electrical EngineeringService: Engineering TechniciansIndustry: DefenseIndustry: FederalType: Defense Engineering+23 more

ASI Industrial

Billings, MT

Build On Our Experience

Website1 office1 projectsUpdated Jun 2026

Project: KSU Grain Science Project

Service: Engineering & DesignService: Process EngineeringService: Civil Engineering & DraftingIndustry: AgricultureIndustry: IndustrialType: Process Engineering+14 more

ASR Engineering Inc.

Portland, ME

Precision Industrial Control and Automation Engineering

WebsitePhone1 office1 credentialsUpdated Jun 2026

Service detail: Industrial Control Automation Engineering

Service: Industrial Control Automation EngineeringService: PLC and PAC ProgrammingService: HMI DevelopmentIndustry: Food & BeverageIndustry: Renewable EnergyType: Automation & Controls+26 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

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

Adaptive Management and Engineering, LLC

Baton Rouge, LA

Geotechnical Solutions for a Sustainable Future

WebsitePhone2 offices2 projects3 credentialsFounded 2019Size Estimate: 5-30 employees

Project: Caminada Headland Back Barrier Marsh Creation (BA-171) Project

Service: Site ExplorationService: Geotechnical Drilling, CPT Soundings and Field TestingService: Soil SamplingIndustry: IndustrialIndustry: CommercialType: Coastal Engineering+34 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

Allgeier, Martin and Associates, Inc.

Joplin, MO

It's not just business...it's personal.

WebsitePhone6 offices17 projects20 leaders39 credentialsFounded 1954

Project: Route 66 Bridge

Service: Civil EngineeringService: BridgesService: IntersectionsIndustry: GovernmentIndustry: WastewaterType: Civil Engineering+33 more

Alliance Automation & Control, Inc.

Rogersville, AL

No project too large, no requirement too detailed.

WebsitePhone1 office1 credentialsFounded 2000Updated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Electrical DesignService: Automation & ControlsIndustry: AutomotiveIndustry: ChemicalsType: Automation & Controls+12 more

Allied Companies L L C

Washington, DC

Program Integration for Complex Infrastructure at Scale.

Website2 offices1 leadersUpdated Jun 2026

Service detail: Environmental Consulting

Service: Environmental ConsultingService: Addressing Regulatory RequirementsService: Sustainability Challenges To Mitigate ImpactIndustry: WastewaterIndustry: Water SupplyType: Environmental Engineering+26 more

Allied Erecting & Dismantling Co., Inc.

Youngstown, OH

Allied Erecting & Dismantling Co., Inc. (AED) specializes in the selective and mass dismantling of complex industrial structures. Established in 1973 in Youngstown, Ohio, AED has completed some of the largest and most challenging industrial dismantling projects in the United States, pioneering techniques and equipment for heavy industrial decommissioning. It operates as a wholly owned subsidiary of Allied Consolidated Industries, Inc. (ACI) and draws on sister companies specializing in scrap processing, structural and civil engineering, mechanical engineering, industrial manufacturing, and heavy fabrication.

Website1 office8 credentialsFounded 1973Updated Jun 2026

Service detail: Industrial Dismantling

Service: Industrial DismantlingService: Selective DismantlingService: Mass Structural DismantlingIndustry: IndustrialIndustry: ManufacturingType: Industrial Engineering+10 more

Apex Engineering Group

Fargo, ND

Apex Engineering Group brings clarity and confidence to complex engineering projects.

WebsitePhone7 offices11 projects5 leaders18 credentialsFounded 2010

Project: City of Detroit Lakes, MN Municipal Engineering Services

Service: Water EngineeringService: Water wells and intake structuresService: On-site pilot plantsIndustry: GovernmentIndustry: Water ResourcesType: Civil Engineering+83 more

Arnold & Associates, Inc.

Roswell, GA

Arnold & Associates, Inc. (A&A) is an Operations and Maintenance (O&M) engineering consulting practice founded in 1988 and based in Roswell, Georgia. It provides professional engineering, training, technical O&M consulting, and staff support services. Its capabilities serve industrial and utility systems, steam and electric power generation, building HVAC systems, and similar facility operations. The practice specializes in the efficient management and utilization of personnel, energy, rotating equipment, boilers, steam and combustion turbines, and diesel-engine-driven components. It also offers technical recruiting, energy conservation surveys, and professional power engineering licensing preparation seminars.

Website1 office2 credentialsFounded 1988Updated Jun 2026

Service detail: Operations & Maintenance Consulting

Service: Operations & Maintenance ConsultingService: Procedures Review and UpdatingService: O&M Personnel EvaluationsIndustry: Power GenerationIndustry: Oil & GasType: Mechanical Engineering+29 more

Associated Engineers, Inc.

Madisonville, KY

Integrity - Experience - Growth, Since 1958

WebsitePhone3 offices5 credentialsFounded 1958Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Site Selection and DevelopmentService: Single and Multi-Family Residential DevelopmentIndustry: InfrastructureIndustry: MiningType: Civil Engineering+33 more

Aura Engineering, LLC

Pearland, TX

A Leading Innovator in Engineering and Design Services

WebsitePhone1 office5 projects2 leaders1 credentials11 publications

Project: Hayti, MO - Railcar to Marine Transfer Facility

Service: Storage Terminal EngineeringService: Storage and Transfer Facility DesignService: Project Feasibility StudiesIndustry: PetrochemicalIndustry: ChemicalsType: Automation & Controls+36 more