Vredenburgh and Associates, Inc.
- Human factors and safety experts. Consumer product safety, design and warnings. Medical device labeling. Workplace issues: OSHA, ADA, harassment, descrimination.
- http://www.vandainc.com

Pressure Vessel & Tank Consulting
- John Mooney, an experienced consultant engineer in mechanical specification, design, failure analysis, inspection and expert witness work on pressure vessels and storage tanks
- http://www.pressurevessels-tanks.com/

Accident Inspection Specialists, Inc.
- Consulting in accidents, engineering in boiler and machinery, and safety engineering.
- http://www.accidents-inspections.com/

Proctor Engineering
- Forensic engineering services in crash reconstruction, failure analysis, fire and explosion cause and origin, human factors engineering, and hazardous materials management.
- http://www.perc.com/

Continental Hoisting Consultants
- Specializing in the elevator and escalator industry.
- http://www.chcelevator.com/

Charles A. Buckman, CEI, CSS
- Elevator and escalator safety specialist.
- http://www.elevator-expert.com/

Brosz & Associates
- Electrical experts and forensic engineers, investigating electric accidents, injury, electrocutions, and power equipment failures.
- http://www.expertwitness-electric.com/

Abrahamson & Associates
- Professional civil engineering firm, located in Amarillo, Texas, providing accident reconstruction, structural and civil investigations, land planning, and land surveying services.
- http://www.aaeps.com