Public engineering firm directory

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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

ARM Group LLC

Hummelstown, PA

Precise. Responsive. Solutions.

WebsitePhone1 office1 projects8 credentialsFounded 1998Size Estimate: 250-500 employees

Project: Annapolis Landfill Solar

Service: Civil Engineering & Land SurveyingService: Site Planning & EntitlementService: Site Plan DesignIndustry: CommercialIndustry: RetailType: Automation & Controls+52 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

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

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 detail: Front-End Loading / FEED Engineering

Service: Front-End Loading / FEED EngineeringService: Engineering Design ServicesService: EPC Transition SupportIndustry: Oil & GasIndustry: ChemicalsType: Process Engineering+5 more

Apex Engineering, PLLC

Calvert City, KY

Apex Engineering, PLLC is a full-service multi-discipline engineering firm headquartered in Calvert City, Kentucky, incorporated in 1974. Through its family of companies - Apex Controls Specialists and Apex Modular Extrusion Systems - it provides engineering, automation, and design-build services for industrial clients. Clients include major producers of specialty chemicals, polymers, refrigerants, nonferrous metals, coal, aggregates, electric power, rubber, elastomer products, pulp, and paper.

WebsitePhone2 officesFounded 1974Updated Jun 2026

Service detail: Specialty Engineering

Service: Process EngineeringService: Civil EngineeringService: Structural EngineeringIndustry: ChemicalsIndustry: MetalsType: Civil Engineering+35 more

BIOFerm Energy

Madison, WI

Your Renewable Energy Partner

WebsitePhone1 office4 projectsFounded 2007Updated Jun 2026

Project: Rosendale Dairy Anaerobic Digester

Service: Anaerobic Digestion SystemsService: CSTR DigesterService: Dry Fermentation SystemIndustry: AgricultureIndustry: WastewaterType: Process Engineering+12 more

BSI Engineering

Customer Centric. Industry Experts. Inspired Solutions.

Website5 projectsSize Estimate: 250+ employeesUpdated Jun 2026

Project: Transforming Aviation Testing Facilities for Enhanced Performance

Service: Process EngineeringService: Process OptimizationService: DebottleneckingIndustry: ChemicalsIndustry: PharmaceuticalType: Process Engineering+22 more

Black & Veatch

Building a World of Difference®

WebsiteSize Estimate: 13,000 employeesUpdated Jun 2026

Service detail: Fuels

Service: Infrastructure AdvisoryService: ConstructionService: Power GenerationIndustry: Power GenerationIndustry: Power Transmission & DistributionType: EPC+22 more

CAT Technologies, LLC

Willoughby, OH

Turnkey Industrial Dust Collection and Vacuum Systems

WebsitePhone1 officeUpdated Jun 2026

Service detail: Air Pollution Control and Environmental Systems

Service: Air Pollution Control and Environmental SystemsService: Industrial Dust Collection SystemsService: Air Filtration and Mist EliminationIndustry: MetalsIndustry: ManufacturingType: Process Engineering+24 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

Campos EPC, LLC

Denver, CO

The Leader In Energy Infrastructure

WebsitePhone20 offices1 projects11 leaders3 publicationsFounded 2005

Project: 350MW Data Center Power Generation & Substation Facility

Service: EngineeringService: Pipeline EngineeringService: Transmission And Midstream Pipeline DesignIndustry: Oil & GasIndustry: UtilitiesType: EPC+51 more

Century 3 Inc.

Greer, SC

Century 3 Inc. (C3) is an industrial engineering and construction company founded in 1977 in Greer, SC. C3 delivers engineering design, procurement, self-perform industrial construction, construction management, facility relocation, and maintenance services to clients in the food and beverage, pharmaceutical and life science, advanced manufacturing, automotive, chemical, high-tech, mission-critical, and general industrial markets. With 1,500 or more engineering and construction professionals, C3 holds professional engineering licenses and unlimited general contractor licenses throughout the United States, as well as trade-specific electrical, mechanical, plumbing, and piping contractor licenses. US offices are in Greer SC, Augusta GA, Pittsburgh PA, and Phoenix AZ, with additional international entities in China and Europe.

Website4 offices6 leadersFounded 1977Size Estimate: 1,500+ employeesUpdated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Self-Perform Industrial ConstructionService: ProcurementIndustry: Food & BeverageIndustry: PharmaceuticalType: Industrial Engineering+12 more

Clear Process Engineering & Technology

Covington, LA

Boiler, combustion, thermal, and steam systems engineering.

WebsitePhone1 office4 projects9 leadersFounded 2015Updated Jun 2026

Project: BFB boiler for high-moisture biomass - South America

Service: Energy AuditsService: Boiler Efficiency EvaluationService: Loss and Opportunity RankingIndustry: Power GenerationIndustry: Biomass & BioenergyType: Process Engineering+74 more

Denali Engineering Services LLC

Denver, CO

Bringing Innovation to Today's Technical Challenges

WebsitePhone1 officeUpdated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Structural EngineeringService: Electrical EngineeringIndustry: ManufacturingIndustry: NuclearType: Mechanical Engineering+30 more

ENGlobal Corporation

Houston, TX

Delivering Innovation

WebsitePhone3 officesUpdated Jun 2026

Service detail: Project Management

Service: Project ManagementService: Program ManagementService: Front-End Engineering and Design (FEED)Industry: Oil & GasIndustry: PetrochemicalType: EPC+26 more

Gliasis

Piscataway, NJ

Intelligent Engineering Solution

WebsitePhone1 officeFounded 2021Updated Jun 2026

Service detail: Engineering and Design

Service: Engineering and DesignService: Detailed EngineeringService: Planning and Construction SupportIndustry: Power GenerationIndustry: ChemicalsType: Process Engineering+28 more

Hargrove Engineers & Constructors

Mobile, AL

The right people. The right place. The right time.

WebsitePhone18 offices1 credentialsSize Estimate: 2,700 employeesUpdated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Conceptual and Front End StudiesService: Capital Projects EngineeringIndustry: AgricultureIndustry: ChemicalsType: EPC+27 more

IAC

Industrial EPC and engineered systems.

WebsiteUpdated Jun 2026

Service detail: Industrial EPC and Turnkey Delivery

Service: Industrial EPC and Turnkey DeliveryService: Engineering and DesignService: Procurement, Fabrication, and ConstructionIndustry: IndustrialIndustry: ManufacturingType: EPC+18 more

Isomer Project Group

Greenville, SC

Built Different. Better Results.

WebsitePhone1 office6 projects5 leadersSize Estimate: 25-45 employeesUpdated Jun 2026

Project: Anson County Landfill RNG Facility

Service: Front-End Engineering & Design (FEED)Service: FEL-1 Project FeasibilityService: FEL-2 Alternative EvaluationIndustry: Biomass & BioenergyIndustry: ChemicalsType: EPC+33 more

Jedson Engineering

Your Capital Project Delivery Partner

Website17 leadersUpdated Jun 2026

Service detail: Engineering

Service: EngineeringService: Feasibility (FEL-1)Service: Conceptual Design (FEL-2)Industry: Consumer ProductsIndustry: Life SciencesType: EPC+44 more

Kesco Solutions

Fort Mill, SC

Dry Bulk Processing Solutions

WebsitePhone1 officeFounded 2001Updated Jun 2026

Service detail: Consulting

Service: ConsultingService: Process Inefficiency IdentificationService: Return on Investment EvaluationIndustry: IndustrialIndustry: ManufacturingType: Process Engineering+16 more

Lauren Engineers & Constructors

Designing and Building Success

WebsiteUpdated Jun 2026

Service detail: EPC / EPCM

Service: EPC / EPCMService: EPC Project ManagementService: Front End Engineering Design (FEED)Industry: Oil & GasIndustry: PetrochemicalType: EPC+30 more

LoopCalTech LLC

Engineering Tomorrow

Website1 leaders1 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Instrumentation and Control Systems

Service: Instrumentation and Control SystemsService: Distributed Control Systems (DCS) design and integrationService: Process automation and SCADA systemsIndustry: Oil & GasIndustry: PetrochemicalType: Automation & Controls+80 more