Shifrin & Associates

Advance Environmental Services (AES) is a full-service, woman-owned small business based in St Charles, MO. Specializing in environmental contracting, AES offers a comprehensive range of services including tank cleaning, facility decontamination, waste management, and hazmat response. With a focus on technical expertise, attention to detail, and customer satisfaction, AES is committed to providing quality and safety in all their environmental solutions. Their experienced staff and top-of-the-line equipment make them a trusted partner for clients of all sizes in Central Texas.Generated from the website

Shannon and Wilson Inc. is a geotechnical and environmental consultant firm located in St. Louis, Mo. Founded in 1954, the firm provides services for the design and construction of transportation facilities, buildings, civil-work structures, military facilities, industrial plants, infrastructure components and energy generators. It specializes in arctic engineering, geographic information systems, hydrogeology, laboratory testing, seismic and tunneling. The firm also works for the projects in transportation, waterfront facilities, rail and property development for both the public and private sector.

Terracon, based in Saint Louis, is a leading consulting firm offering specialized services in environmental, facilities, geotechnical, and materials engineering. Their team of experienced engineers and scientists provide expert consulting services to clients seeking solutions in various engineering disciplines. Generated from their website's infomation