Client-Recommended Attorneys, Adjusters and Experts
Client-Recommended Attorneys, Adjusters and Experts

Sotter Engineering Corporation

Safety Direct America

Best's Recommended Expert Service Providers - Slip & Fall

26705 Loma Verde, Mission Viejo, California 92691-6055

Established: 1989

California License #3028, Chemical Engineer

Certified by the City of Los Angeles for Pedestrian Slip Resistance Testing

About Us

Sotter Engineering Corporation is Licensed by the State of California Board for Professional Engineers and Land Surveyors. We have been testing flooring slip resistance for more than 24 years. We are the foremost slip testing firm in the Americas. Certified by City of Los Angeles for testing floor slip resistance. Consultant to major cruise ship companies. Dr. J. George Sotter, P.E. has testified 35 times in depositions, arbitrations (2), and trials (9) since 1994. Defense and plaintiff. Not a full-time professional witness.

Services Rendered

  • Slip/Trip and Fall Investigations
  • Phone for courtesy claimant questionnaire.


More than 30 years as a consultant including 90 publications. Conducted landmark research in occupational slip causes. Trial, deposition, and arbitration experience. Author, Stop Slip and Fall Accidents! 2000, Slip prevention consultant to two major cruise ship companies.

Professional Memberships

  • American Society for Testing and Materials
  • Chair, Ceramic Tile Institute of America's Slip Resistance Committee
  • United Kingdom Slip Group and five relevant U.S. Committees.

Service Area

United States, Canada, Guam and Bermuda

Personnel Information

Firm Members

J. George Sotter, P.E., Ph.D.

  • The Pennsylvania State University, B.S. (with honors), 1961
  • University of Sheffield, Ph.D., 1964

John C. Sotter

Senior Technician
  • University of California, San Diego, B.A., 1992


Floor Slip Resistance

Establishing Safe slip resistance by George Sotter

High Profile Cases

$1,000,000 recovery from client's flooring contractor on outdoor mall slip and fall.

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