
1st Self Consulting, LLC
Loves Park, ILSustainable Transportation Engineering Planning & Design
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Sustainable Transportation Engineering Planning & Design
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.

Your Energy Use Simplified

Civil & Structural Engineering, Design Services, General Contracting, and Construction Management
Specialized electrical engineering for aviation, transportation, and facilities projects

Innovative Solutions, Exceptional Performance
AKT Peerless Environmental Services is an environmental consulting and redevelopment firm with more than 35 years of experience and offices across the Midwest, Southeast, and coasts. It serves developers, real estate professionals, financial institutions, government agencies, industrial and manufacturing clients, and petroleum companies. AKT Peerless delivers environmental due diligence, brownfield redevelopment, storage tank compliance, vapor intrusion assessment, environmental remediation, construction loan monitoring, industrial hygiene, sustainability services, and economic development incentive consulting. Its tank services division, AKT Tank Services, focuses on underground and aboveground storage tank work for fuel companies and transportation clients across the Northeast and Midwest.
Professional mechanical engineering, machine design, and forensic analysis
Taking Your Transit and Transportation Programs to the Next Level
A solution-oriented international organization experienced in engineering and IT services.

Leading the pavement consulting industry

Engineering Together

Making the automation & packaging world a better place.
We engineer & design systems for the reliability of the power grid.
Andrews Engineering Inc. is a full-service, multi-disciplinary engineering organization serving clients in Illinois, Indiana, and Missouri for more than 40 years. Integrity, commitment, and quality are at the core of every engagement, and the firm delivers innovative, practical, and cost-effective solutions across geotechnical, environmental, civil, water resources, and remediation engineering disciplines. Andrews Engineering operates five offices across the Midwest: Springfield and Pontiac and Lombard in Illinois, Indianapolis in Indiana, and Warrenton in Missouri.

Authentic partnerships are the best way to design and deliver projects that create lasting value.

Confidence and Clarity

APTech: a full-service pavement engineering firm.

Clear Thinking
Water & Life

Quality and responsive civil engineering, land surveying, and landscape design

Building a Greener Future Together.

Innovate, Empower, and Collaborate
We create solutions for the built environment.