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
WebsitePhone1 office1 leadersFounded 2009Updated Jun 2026
Service detail: Air Quality and Environmental Compliance
Service: Air Quality and Environmental ComplianceService: Air Quality Permitting SupportService: Regulatory Review and ComplianceIndustry: TransportationIndustry: Water SupplyType: Civil Engineering+25 more
Specialists in applied fluvial geomorphology and stream restoration
Website7 projects3 leadersFounded 2015Updated Jun 2026
Project: Riverby Ranch Mitigation Site
Service: Geomorphic Assessment and Stream Restoration DesignService: Watershed Assessment and Gage AnalysisService: Geomorphic Survey of Fluvial SystemsIndustry: Environmental & RemediationIndustry: Water ResourcesType: Environmental Engineering+15 more
Environmental, Cultural, and Water Resources Engineering
Website4 offices5 leadersUpdated Jun 2026
Service detail: Environmental Engineering
Service: Environmental EngineeringService: Environmental Clearance and PermittingService: Construction Site Environmental ServicesIndustry: FederalIndustry: Power GenerationType: Environmental Engineering+14 more
Service: Water ResourcesService: Hydraulic AnalysisService: Municipal Water Well Planning and DesignIndustry: GovernmentIndustry: TransportationType: Civil Engineering+44 more
WebsitePhone2 offices1 credentialsFounded 1981Size Estimate: 25-100 employeesUpdated Jun 2026
Service detail: Civil Engineering
Service: Civil EngineeringService: Land/Site DevelopmentService: Canal Bank StabilizationIndustry: WastewaterIndustry: Water SupplyType: Civil Engineering+40 more
Leaders in professional engineering for over 40 years
WebsitePhone1 office1 projects1 leadersFounded 1974Updated Jun 2026
Project: Passamaquoddy Water Treatment Plant
Service: EngineeringService: Water Systems DesignService: Wastewater Systems DesignIndustry: GovernmentIndustry: UtilitiesType: Civil Engineering+31 more
Service: Engineering and Design ServicesService: Geotechnical and Geological EngineeringService: Civil and Site EngineeringIndustry: AirportsIndustry: CommercialType: Civil Engineering+41 more
WebsitePhone1 office9 projects2 leadersFounded 2012Updated Jun 2026
Project: Naval Air Station North Island Soil Investigation
Service: Environmental ServicesService: Phase I and Phase II Environmental Site AssessmentsService: Underground Storage Tank Assessment and ClosureIndustry: FederalIndustry: DefenseType: Architecture & Engineering+39 more
AECOM is a trusted global infrastructure firm delivering professional services spanning cities, transportation, buildings, water, new energy, and the environment. Founded in 1990, with predecessor firms dating back over 120 years, AECOM is ranked #1 in general building, transportation, and water by Engineering News-Record (2025), listed at #259 on the Fortune 500, and generated $16.1 billion of revenue in fiscal year 2024. AECOM delivers planning, design, engineering, consulting, and program and construction management services throughout the full project lifecycle.
Website3 credentialsFounded 1990Updated Jun 2026
Service detail: Planning and Design
Service: Planning and DesignService: Program and Construction ManagementService: Advisory and ConsultingIndustry: TransportationIndustry: InfrastructureType: Architecture & Engineering+13 more
Project: WSLP-105 and WSLP-108 Drainage Structures, Levees and Floodwalls
Service: Civil EngineeringService: Streets and RoadwaysService: Water InfrastructureIndustry: GovernmentIndustry: FederalType: Civil Engineering+32 more
WebsitePhone1 officeFounded 1996Size Estimate: 600+ employeesUpdated Jun 2026
Service detail: Civil Engineering
Service: Civil EngineeringService: Site Design & GradingService: UtilitiesIndustry: InfrastructureIndustry: Land DevelopmentType: Civil Engineering+35 more
Service: Land SurveyingService: GPS and Total Station SurveyingService: UAV and Aerial Survey and MappingIndustry: Oil & GasIndustry: GovernmentType: Civil Engineering+27 more
WebsitePhone3 offices2 projects1 leaders1 credentialsUpdated Jun 2026
Project: Brighton Beach Shoreline Restoration
Service: Ports and HarborsService: Waterfronts and MarinasService: Coastal and RiverineIndustry: GovernmentIndustry: FederalType: Civil Engineering+18 more
Service: Civil EngineeringService: New Parcel InvestigationService: Site Planning and ComplianceIndustry: ResidentialIndustry: CommercialType: Civil Engineering+31 more
WebsitePhone1 office9 projects2 leadersFounded 2013Updated Jun 2026
Project: 1400 Chestnut Street Apartments
Service: Civil Engineering & Site DesignService: Site Layout, Grading & DrainageService: Roadway and Intersection DesignIndustry: Land DevelopmentIndustry: ResidentialType: Civil Engineering+45 more
WebsitePhone1 office1 credentialsFounded 2013Updated Jun 2026
Service detail: Project Staffing
Service: Project StaffingService: Construction SuperintendentsService: Site Safety and Health OfficersIndustry: FederalIndustry: DefenseType: Environmental Engineering+24 more
Service: Civil EngineeringService: Site & Land DevelopmentService: Hydrology & Stormwater ManagementIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+19 more
Service: Civil Design and EngineeringService: Site Master Planning and LayoutService: Underground Utilities DesignIndustry: WastewaterIndustry: EducationType: Materials Testing+31 more
Geotechnical, Civil, and Structural Engineering Across California and the Western States
WebsitePhone1 office10 projects2 leadersFounded 2004Updated Jun 2026
Project: LA Metro Gold Line - MSE Wall
Service: Geotechnical EngineeringService: Site Investigation and Subsurface ExplorationService: Foundation Design and Lateral Earth Pressure AnalysisIndustry: CommercialIndustry: IndustrialType: Civil Engineering+39 more