Since our founding in 1974, Engineering Enterprises, Inc. has been committed to quality, service, and value as we perform civil engineering and land surveying services for both public and private sector clients in northern Illinois.

Larson & Darby Group is an award-winning, full-service architecture, engineering and interior design firm.

Chastain is a professional engineering firm providing a wide variety of engineering services from simple location of lot pins to multi-million dollar design and construction projects.

Fehr Graham is more than an engineering and environmental consulting firm. We are a team of experts across many disciplines who work together to solve problems and improve the quality of life in the communities in which our clients live, work & play