Setting the standard

for engineering excellence

About Us

The Firm primarily practices in the disciplines of Mechanical and Electrical engineering, but has extensive experience in the administration of Architectural, Structural, Civil, and Environmental projects as the prime professional. Members of the firm hold professional registration, collectively, in 12 states throughout the United States.

Our Mission

To set the standard for engineering excellence by providing innovative and cost-effective professional services to value-conscious clients in government and private industry.

Contact Info

Telephone: 405-840-1901 x3007

4323 NW 63rd Street, Suite 120

Oklahoma City, OK 73116


See what we can do for you!

Brief History

PSA CONSULTING ENGINEERS, INC. is a professional corporation founded in 1971 by Paul F. Sprehe that has been continuously engaged in the private practice of professional engineering since that time. PSA began with a total staff of three, primarily providing mechanical services for Architectural clients. In the late 1970’s, PSA expanded into a full-service firm providing mechanical, electrical, and plumbing services.


In 1995 Mr. Sprehe left the firm and the firm began to aggressively expand its marketing area throughout the United States. Since 1995, PSA has been managed by the current partners. At present PSA is licensed in and practices in many states with the majority of our work in the States of Oklahoma, Texas and Arkansas.


The services offered by PSA include building systems design, building studies including acoustical/noise analyses, code compliance, computerized energy analyses, building condition reports, design peer reviews, value engineering studies, preparation of construction documents and providing construction observation for all phases of mechanical and electrical engineering. PSA has worked on projects of all types, including aircraft hangers, broadcast facilities, health-care facilities, housing facilities, low- and high-rise office buildings, medical office buildings, museums, performing arts centers and auditoriums, research laboratories, schools (from kindergarten through collegiate), sports arenas and complexes, and recreational facilities.