George Ripsom Associates
- Biomechanical consulting and traffic collision reconstruction.
- http://www.ripsomassociates.com/

Cummings Scientific, LLC
- Cummings Scientific, LLC, is a consulting firm specializing in biomechanics, accident reconstruction, and animation preparation for civil plaintiff and defense attorneys, criminal prosecutors, criminal defense attorneys, and insurance companies.
- http://cummingssci.com/

forensic accident analysis
- Forensic accident analysis of trips slips and falls. Sciences of biomechanics and applied anatomy are used to analyse accident events and provide expert witness testimony.
- http://www.accidentanalysis.biz

Human Performance and Wellness
- Expert witness and consultants for biomechanics based design, testing and evaluation.
- http://www.hpw.net

Medical-Legal Consultants, Inc.
- An interdisciplinary medical-engineering group providing expert biomechanical, forensic and medical analysis of accidental injury causation and prevention.
- http://expertwitness-biomech.com/

Hayes and Associates, Inc.
- Experts and consultants in biomechanics, providing litigation support and testimony for injury reconstruction and failure analysis.
- http://www.hayesassoc.com/