Experience Meets Innovation

For more than 60 years Reitz & Jens has provided engineering services for public agencies, private industry, architects, engineers, contractors, and other private owners.

Clients rely on Reitz & Jens for quality advice and engineering solutions on a wide array of infrastructure challenges — often trusting our team of experienced consulting engineers with their most ambitious and unique projects.

Company History

Formed in l963, Reitz & Jens, Inc. began as a partnership between two well-established and experienced St. Louis engineers: Henry M. Reitz, an expert in soil mechanics, foundations, and hydrology; and Stifel W. Jens, an expert in hydrology, hydraulics and drainage. Consolidating their extensive knowledge and expertise, Reitz & Jens has become a regional leader in geotechnical and water resources engineering, helping to develop large portions of St. Louis and the surrounding region.

Today Reitz & Jens continues to help clients thrive, with a long-established commitment to client-focused service resulting in strong and lasting partnerships with a diverse range of esteemed clients.

Consulting Services

With a cross-disciplinary and collaborative approach to engineering problems, challenges and solutions, Reitz & Jens provides expert consulting services on the most sophisticated engineering projects, including:

  • Evaluation and Management of Existing Infrastructure & Property Assets
  • Site Evaluations & Planning
  • Feasibility Studies
  • Geotechnical Investigations
  • Foundation Design
  • Construction Document Preparation & Cost Estimating
  • Pre-construction Bidding & Contract Finalization
  • Construction Engineering & Quality Control

Collaborative, Client-Focused Solutions

As one of the oldest geotechnical engineering firms in the Midwest, Reitz & Jens offers a breadth of depth and experience for many types of engineering projects.

Reitz & Jens’ clients benefit from the trust and consistency created from working with a flexible team possessing deep institutional knowledge and intricate familiarity with their sophisticated projects. At Reitz & Jens over 75% of employees have a minimum of 10 years hands-on experience, while over 50% of staff also have master’s degrees. This combination of practical experience and advanced learning provides Reitz & Jens with the experienced professionals, technological capabilities and personal commitment needed to deliver intelligent, pragmatic solutions on projects of all sizes and complexities.

Contact Reitz & Jens

Contact Reitz & Jens for more information about the services and solutions we provide.

Contact Reitz & Jens

Team Members

Learn more about the Reitz & Jens leadership team and staff.

Leadership