Pete Field
- Aviation expert witness, aircraft accident investigation and reconstruction - Pilot 40 years, former Director US Naval test pilot school.
- http://www.petefieldaviation.com/

Charles L. Culver and Associates
- Railroad operations consulting.
- http://www.culverassociates.com/

Apollo Aviation Advisory, Ltd.
- Experts for a full range of aviation subjects including licensing, operations and finance. Based in the United Kingdom.
- http://www.apollo-aviation.co.uk/

AirSafety Experts, Inc.
- Offering aviation expertise and consulting for attorneys and insurance industry. Based in Colorado.
- http://www.airsafetyexperts.com/

Transport Management Consultants, Ltd.
- Expertise in the field of tachograph legislation and accident investigation, plus advice on legal problems relating to training and general haulage. London, England.
- http://www.tmc-ltd.com

Raymond A. Syms & Associates
- Aeronautical consulting, research and litigation support services, for accidents, safety and regulatory issues. Based in New Jersey.
- http://www.syms.rotor.com/