Our History

Chastain & Associates was founded in the spring of 1954 by brothers, Homer and Edward Chastain. After being awarded a 909,000 square foot expansion project for Caterpillar's existing facility in Decatur, the brothers mortgaged everything they owned to meet the increased payroll and staffing demands of the project. Over the years, we have completed numerous projects for Caterpillar, and are proud to have them as a friend today. Chastain is headquartered in Decatur, Illinois.
In September 1954, the brothers were also involved in the early development of the Illinois State Toll Highway, formerly known as the Northern Illinois Toll Highway. Chastain was among several firms supporting Joseph K. Knoerle & Associates, Inc. of Chicago, Illinois in the preparation of the final feasibility report and construction cost to develop 481 lane miles of the proposed highway. To-date, Chastain has completed over 75 projects for the Illinois Tollway and maintains a strong relationship with the agency through open communication. Read more...
Our CultureAt Chastain, we believe teamwork matters. Not only is this apparent in the services we offer our clients, but how we treat one another. Our clients and staff flourish with our outward mindset! This means we genuinely see (and hear and listen to) others. We evaluate their needs, objectives and challenges rather than focusing on our own. This outward mindset gives us options that we could never have before, and we can focus on the collective result our clients and staff desire.
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Professional GrowthChastain maintains and develops the highest level of expertise and professionalism through the promotion and encouragement of continuing education, seminars, and educational programs. As such, Chastain maintains a 24/7 online university where staff has access to accredited courses to help maintain and develop their skill set.
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Our Diversity
Our Leaders
Jeremy Buening, P.E., S.E.,
Managing Principal |
Curtis Cook, P.E.,
Principal |
Kevin Meyers, P.E.,
Principal |