Our Philosophy

Summit Geoengineering Services (SGS) was formed in 2010 to furnish clients in the northeast with a wide range of geotechnical engineering services. The co-owners, Bill Peterlein, P.E. and Craig Coolidge, P.E. bring over 35 years of combined experience to the civil engineering industry. 

We are committed to providing high quality geotechnical services focused on answering the specific questions posed by the design team on the project.  By focusing on the specific questions, we are able to provide answers quickly and efficiently.  - BIll Peterlein, P.E.

This philosophy allows SGS to be competitive and meet the needs of clients and their projects.

Above all, the SGS professionals recognize that we are a service company and our success is wholly dependent on the quality of our services. SGS employees are selected based on their technical knowledge, communication skills, and ability and willingness to serve others. We firmly believe that this is the key to our success.