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.

Filters2

AMG, Inc.

Dayton, OH

Industrial Facility Engineering

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

ATSI, Inc.

Amherst, NY

Changing the World Since 1977

WebsitePhone1 officeFounded 1977
Service: Front-End Engineering & Design (FEED)Service: FEL-1: Conceptual Engineering & FeasibilityIndustry: Renewable EnergyType: Process Engineering+41 more

AdvanceBio LLC

Milford, OH

Biofuels and biochemical industry consultants

WebsitePhone1 office1 leaders
Service: Commercial Bio-Based Process EngineeringService: General Project ConsultingIndustry: Biomass & BioenergyType: Owner's Engineer+15 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 Cryogenics, Ltd

Tavernier, FL

Optimizing CO2 Management for Sustainability and Success

WebsitePhone1 office1 leaders
Service: CO2 Source EvaluationService: Technical Source AssessmentIndustry: Carbon CaptureType: Process Engineering+20 more

Airflow Sciences Corporation

Livonia, MI

Engineered CFD Solutions

WebsitePhone1 officeFounded 1975
Service: Computational Fluid Dynamics (CFD) ModelingService: Combustion ModelingIndustry: Emissions ControlType: Mechanical Engineering+55 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

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 1974
Service: Process EngineeringService: Civil EngineeringIndustry: ChemicalsType: Civil Engineering+37 more

Apex PetroConsultants LLC

Where Deep Ethylene Expertise Meets Strategic Decision-Making

Website7 projects1 leaders2 publications
Service: Project Development and Execution OversightService: Independent Technology SelectionIndustry: PetrochemicalType: Chemical Engineering+22 more

Applied Chemical Technology, Inc.

Florence, AL

Applied Chemical Technology (ACT) is a one-stop engineering, research and development, and fabrication firm founded in 1981 and headquartered in Florence, Alabama. ACT specializes in chemical process scale-up, providing integrated engineering, laboratory and pilot plant R&D, and custom equipment fabrication for clients in the chemical, fertilizer, agriculture, and mining industries. Its 84,500-square-foot Florence campus includes office, laboratory, fabrication, and pilot plant facilities, and its ASME VIII Div 1 pressure vessel shop supports design and build of custom reactors and process systems.

WebsitePhone1 office1 credentials
Service: EngineeringService: Process EngineeringIndustry: ChemicalsType: Chemical Engineering+23 more

Aura Engineering, LLC

Pearland, TX

A Leading Innovator in Engineering and Design Services

WebsitePhone1 office5 projects
Service: Storage Terminal EngineeringService: Storage and Transfer Facility DesignIndustry: PetrochemicalType: Automation & Controls+38 more

BCP Engineers & Consultants

Metairie, LA

Bridging the Gap Between Design and Operations

WebsitePhone1 office12 leaders
Service: Engineering & Project ManagementService: Engineering ConsultingIndustry: NuclearType: Power & Utility Engineering+27 more

BSI Engineering

Customer Centric. Industry Experts. Inspired Solutions.

Website5 projectsSize Estimate: 250+ employeesUpdated Jun 2026
Service: Process EngineeringService: Process OptimizationIndustry: ChemicalsType: Process Engineering+24 more

Beacon Engineers

Bothell, WA

Multi-discipline industrial engineering and owner's representation services

WebsitePhone1 officeFounded 1999
Service: Engineering Design ServicesService: Civil and Structural DesignIndustry: IndustrialType: Civil Engineering+23 more

Becht

Liberty Corner, NJ

The Complete Central Engineering Partner

WebsitePhone1 office5 leaders
Service: Electrical, Instrumentation and ControlsService: Mechanical Integrity and ReliabilityIndustry: ChemicalsType: Automation & Controls+27 more

Benz Technology International, Inc.

Clarksville, OH

Quality Is Less Expensive Than Downtime

WebsitePhone1 office1 leaders
Service: Fluid Agitation ConsultingService: Vendor Bid EvaluationIndustry: Biomass & BioenergyType: Process Engineering+14 more

Bio-Process Group

West Lafayette, IN

Process Design and Improvement for Biorefinery Systems

Website1 office3 projects2 leaders
Service: Contract Research & DevelopmentService: Lab Scale ValidationIndustry: AgricultureType: Process Engineering+20 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: Plan & DesignService: EngineeringIndustry: IndustrialType: Industrial Engineering+29 more

C&I Engineering

Louisville, KY

Your Engineering Partner

Website6 offices6 projects3 leaders
Service: Multi-Discipline EngineeringService: Civil and structural engineeringIndustry: Oil & GasType: Industrial Engineering+47 more

C-P Systems

Vadnais Heights, MN

Building Resilient Industrial Processes

WebsitePhone1 office1 projects
Service: Engineering ConsultingService: Process EngineeringIndustry: ChemicalsType: Process Engineering+15 more

CAT Technologies, LLC

Willoughby, OH

Turnkey Industrial Dust Collection and Vacuum Systems

WebsitePhone1 officeUpdated Jun 2026
Service: Air Pollution Control and Environmental SystemsService: Industrial Dust Collection SystemsIndustry: MetalsType: Process Engineering+26 more

CSD Engineers, LLC

Pittsburgh, PA

Engineering & Management Solutions

WebsitePhone1 office2 leaders
Service: Project Management and ControlsService: Project ManagementIndustry: Oil & GasType: Civil Engineering+39 more

CSMI

Schaumburg, IL

Integrating innovative solutions for manufacturing clients

WebsitePhone1 office1 credentials
Service: Process EngineeringService: Packaging Line Integration EngineeringIndustry: Food & BeverageType: Process Engineering+19 more