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Sine Qua Non | Absolutely Essential

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About SQN Associates
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- The SQN Team
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Services
Our Work
About SQN Associates
- Culture, Mission, and Values
- The SQN Team
Careers

UTILITIES

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Our Work

Nick B CDWM PD Repair Project Milling Crew 1

CDWM Private Drain Repair Program

Learn More about CDWM Private Drain Repair Program

Nick B CDWM NW Highway Sewer Improvement 1

CDWM Northwest Highway Sewer Improvement

Learn More about CDWM Northwest Highway Sewer Improvement

Project 6390 85th and 87th St. Sewer Improvement 11

CDWM 85th & 87th Street Sewer Improvement

Learn More about CDWM 85th & 87th Street Sewer Improvement

Project 7359 FOREST PRESERVE SEWER IMPROVEMENT

CDWM Forest Preserve Sewer Improvement

Learn More about CDWM Forest Preserve Sewer Improvement

Project 7274 Laramie and Lamon Sewer Improvement 10

CDWM Lamon & Laramie Avenue Sewer Improvement

Learn More about CDWM Lamon & Laramie Avenue Sewer Improvement

SQN is certified as a Disadvantaged Business Enterprise (DBE) in GA/IL/IN/MA/UT/WI, Minority Business Enterprise (MBE), Women’s Business Enterprise (WBE), and Women-Owned Small Business (WOSB).

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134 North LaSalle Street, Suite 700, Chicago, IL 60602

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