Public engineering firm directory

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Code Consultants Inc

El Segundo, CA

Experts Responsive Solutions

WebsitePhone5 offices1 leaders4 credentialsFounded 1973Updated Jun 2026

Service detail: Fire Protection and Life Safety

Service: Fire Protection and Life SafetyService: Code ConsultationService: Fire and Egress ModelingIndustry: CommercialIndustry: RetailType: Fire Protection Engineering+48 more

Keith Engineering Design Inc

Peoria, IL

All Systems Go.

WebsitePhone4 offices17 leadersSize Estimate: 51-200 employeesUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Heating, Ventilation, and Air Conditioning (HVAC)Service: Energy Modeling and AnalysisIndustry: AviationIndustry: CommercialType: MEP+42 more

McGuire Engineers, Inc.

Chicago, IL

Excellence by Design, Sustainability by Commitment

WebsitePhone1 office15 projects3 leaders17 credentialsFounded 1986

Project: The Momentary

Service: MEP Engineering DesignService: Mechanical EngineeringService: Electrical EngineeringIndustry: CommercialIndustry: Arts & CultureType: MEP+45 more

Mechanical Services Associates

Crystal Lake, IL

Innovative Engineering Solutions

WebsitePhone1 office4 projects8 leadersFounded 1972Updated Jun 2026

Project: Shedd Aquarium Oceanarium Redevelopment

Service: Mechanical EngineeringService: HVAC SystemsService: Boiler SystemsIndustry: EducationIndustry: CommercialType: MEP+35 more

RJN Group, Inc.

Downers Grove, IL

Celebrating 50 Years of Engineering Intuition, Innovation, & Insights for Water Infrastructure

WebsitePhone1 office2 projects1 credentialsFounded 1974Size Estimate: 100-500 employees

Project: Klefstad Lift Station and Force Main Design

Service: WastewaterService: Sewer collection system planning and designService: Lift station and force main designIndustry: GovernmentIndustry: UtilitiesType: Water / Wastewater Engineering+55 more

Robinson Engineering, Ltd.

Frankfort, IL

Beyond Engineering

WebsitePhone1 office14 projectsFounded 1937Size Estimate: 100-499 employeesUpdated Jun 2026

Project: Downtown Streetscape

Service: Municipal EngineeringService: Infrastructure Master PlanningService: Financing & Grant AssistanceIndustry: GovernmentIndustry: TransportationType: Civil Engineering+50 more

Telgian Engineering & Consulting

Atlanta, GA

Engineering, Consulting & Risk Management

WebsitePhone8 offices8 leaders10 credentialsFounded 1985Size Estimate: 100-999 employees

Service detail: Fire Protection Engineering & Consulting

Service: Fire Protection Engineering & ConsultingService: Fire Sprinkler System DesignService: Fire and Building Plan ReviewIndustry: CommercialIndustry: Freight & LogisticsType: Fire Protection Engineering+21 more

The Fire Protection International Consortium, Inc.

Woodridge, IL

Professional fire protection, life safety, and security engineering consulting

WebsitePhone4 offices2 leadersFounded 2001Updated Jun 2026

Service detail: Fire Protection Engineering

Service: Fire Protection EngineeringService: Smoke Control IntegrationService: Fire Sprinkler IntegrationIndustry: AirportsIndustry: CommercialType: Fire Protection Engineering+37 more

Webb Engineering Services, Inc.

St. Louis, MO

Webb Engineering Services (WES) is a mechanical, electrical, plumbing, and fire-protection engineering design firm founded in 1999 in St. Louis, Missouri. WES added plumbing and fire-protection disciplines to its original mechanical, electrical, and civil scope, and in 2018 acquired an engineering firm in Champaign, Illinois, doubling its size and establishing a second office in central and northern Illinois. WES serves public and private sector clients in healthcare, aviation, commercial, higher education, K-12, and governmental markets.

Website2 offices1 leadersFounded 1999Updated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Low/Medium Voltage Systems DesignService: Emergency System DesignIndustry: HealthcareIndustry: AviationType: Fire Protection Engineering+23 more