2IM Group, LLC is a Chicago-based civil, environmental, and transportation engineering practice. Now part of MacKay, it continues to deliver technical solutions across highways, roads, streets, aviation, rail, transit, utilities, and stormwater management systems while offering expanded resources and broader geographic reach.
WebsitePhone1 office5 projects8 leadersFounded 2005Updated Jun 2026
Project: O'Hare Terminal 3, Concourse L Expansion
Service: Highways, Roads, and StreetsService: Roadway geometryService: Drainage systemsIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+29 more
Service: Water ResourcesService: Hydraulic AnalysisService: Municipal Water Well Planning and DesignIndustry: GovernmentIndustry: TransportationType: Civil Engineering+44 more
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.
Project: Western Butler County Authority Administration Building
Service: Building CommissioningService: Design and Submittal AnalysisService: Controls and Checklist FormulationIndustry: GovernmentIndustry: CommercialType: MEP+40 more
Alliance Technical Group is a full-service environmental services company founded in 2000 in Decatur, Alabama, with over 2,200 employees and more than 60 testing and laboratory locations across the United States and Canada. Alliance helps industrial, manufacturing, energy, and government clients achieve environmental compliance through on-site testing and monitoring, laboratory testing and analysis, and regulatory consulting. The company operates 110-plus mobile laboratories and delivers services across stack testing, LDAR, ambient air monitoring, CEMS, and environmental consulting.
WebsitePhone1 office4 leadersFounded 2000Updated Jun 2026
Alta Southwest is a multi-discipline engineering and environmental consulting firm with offices in Tempe, Tucson, Florence, and Sierra Vista, Arizona. Alta Southwest provides environmental services, land surveying, geotechnical engineering, construction materials testing, and civil engineering to residential, commercial, government, institutional, and industrial clients throughout the Southwest.
Service: Water EngineeringService: Filtration/Treatment PlantsService: Distribution SystemsIndustry: Water SupplyIndustry: WastewaterType: Water / Wastewater Engineering+63 more
Apex EHS is an environmental, health, and safety (EHS) consulting and compliance firm incorporated in 2005 and serving businesses across the southeastern United States and 15-plus states. With over 50 years of combined EHS experience on staff, Apex EHS helps clients meet OSHA, EPA, and other regulatory standards through monthly inspections, risk assessments, drone inspections, and environmental project reviews. Apex EHS also provides a digital platform for managing EHS inspections, documents, reports, and training.
Website1 office6 projects13 leadersSize Estimate: 50-100 employeesUpdated Jun 2026
Project: Boise Airport New Fuel Facility
Service: Engineering and DesignService: Programming and PlanningService: Facility DesignIndustry: AviationIndustry: DefenseType: Environmental Engineering+37 more
Website2 offices9 projects15 leaders4 credentialsFounded 1975Updated Jun 2026
Project: IH-35 Waco 4B
Service: Construction ManagementService: Contractor & Subcontractor ManagementService: Field InspectionsIndustry: CommercialIndustry: GovernmentType: Civil Engineering+61 more
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
Project: Austin Bergstrom International Airport ConRAC Facility
Service: Engineering and Water ResourcesService: BMP ServicesService: National Flood Insurance Program RegulationsIndustry: EducationIndustry: HealthcareType: Chemical Engineering+83 more
Bethel Engineering & Consulting is an environmental consulting and engineering subsidiary of the Bethel Native Corporation (BNC), an Alaska Native Corporation founded in 1973. Operating as part of BNC's integrated family of companies, Bethel Engineering provides a broad range of professional consulting services in environmental science and engineering, including environmental assessment and investigation, environmental compliance, and environmental engineering. It serves federal clients including the FAA, US Air Force, US Army, US Navy, US Coast Guard, Army and Air National Guard, and Bureau of Land Management. BNC subsidiaries are headquartered in Anchorage, Alaska with strategic presences in San Diego and Seattle, and operate throughout North America and select locations in Asia and Europe.
Website4 officesFounded 1973Updated Jun 2026
Service detail: Engineering & Environmental Consulting
Service: Master PlanningService: It Provides Planning Services From The Initial Stages Of A Project To Define Long-term GoalsService: Ensure Efficient SolutionsIndustry: Land DevelopmentIndustry: GovernmentType: Civil Engineering+32 more
CJSeto Support Services, LLC is an environmental compliance, safety, information technology, logistics, and workforce training firm headquartered in Ventura, California. Founded in 1999, CJSeto holds ISO 9001:2015 certification and serves federal agencies, educational institutions, healthcare providers, and commercial clients. Its environmental practice covers hazardous waste management, EPA and RCRA compliance, NEPA documentation, spill prevention planning, environmental monitoring and remediation, and asbestos and lead monitoring. Its safety and industrial hygiene practice encompasses OSHA compliance audits, indoor air quality testing, chemical inventory management, respiratory protection, and hazard assessments. Additional service areas include IT infrastructure, cybersecurity and information assurance, logistics and inventory management, and professional training including HAZWOPER, OSHA, and EPA compliance courses. Federal clients include the U.S. Navy, Department of Homeland Security, NASA, and the Veterans Administration.
WebsitePhone1 office1 credentialsFounded 1999Updated Jun 2026
Service detail: Environmental Compliance
Service: Environmental ComplianceService: Hazardous Waste ManagementService: Environmental Monitoring and SamplingIndustry: FederalIndustry: DefenseType: Environmental Engineering+22 more
Service: Program & Construction ManagementService: Program ManagementService: Construction ManagementIndustry: AirportsIndustry: CommercialType: Architecture & Engineering+37 more
WebsitePhone2 offices2 credentialsFounded 2014Size Estimate: 50-75 employeesUpdated Jun 2026
Service detail: Stormwater Engineering
Service: Stormwater EngineeringService: Flood Study and Downstream AssessmentsService: Dam Breach AnalysisIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+34 more
Service: Air QualityService: Civil EngineeringService: One Of Cec's Four Founding PracticesIndustry: ManufacturingIndustry: MiningType: Civil Engineering+31 more
Commonwealth Engineers & Consultants, Inc. (CE&C) is a multi-disciplinary professional civil engineering practice founded in 1987 and based in Providence, Rhode Island. It provides a single source of professional services to public and private clients throughout Rhode Island and Massachusetts. Its capabilities include transportation and structural engineering, site development, utility design, construction services, and environmental permitting.
