Human Factors in Safety

Since 1994


Our Work

Error Analysis, Inc. is a consultancy based in the greater San Diego, California region of the United States. Our work involves forensic consultations, expert witness assignments in litigation, and projects. Law firms, insurance companies, municipal corporations, and businesses rely on our specialized knowledge and experience. 

Our qualifications and rates are available upon request.


Litigation & Claims

We routinely review evidence and perform safety and human analysis in personal injury claims and litigation. This typically involves:
  • Inspecting and documenting sites, scenes, facilities, operations, products, equipment, and/or tools
  • Studying the contribution of behavioral and environmental factors to accidents such as falls, crashes, collisions, and exposures
  • Research about human capabilities and limitations and individual differences


Joseph Cohen testified as an expert witness during trial proceedings in the Superior Court of Maricopa County, Arizona.

H. Harvey Cohen was elected as Treasurer of the Foundation for Professional Ergonomics.

Joseph Cohen was named Chair of the Alliance for Professional Practice in Human Factors/Ergonomics.

Other Services

Error Analysis engages in projects such as:
  • Workplace solutions
  • Standards development
  • Education and training
  • Writing and speaking
  • Safety research
  • Start-ups
Contact us for more information.

Mailing Address

Error Analysis, Inc.
5173 Waring Road, Suite 157
San Diego, CA 92120-2705


Office Location (No Mail)

Grossmont Professional Building
9001 Grossmont Boulevard, Suite 603
La Mesa, CA 91941


(Direct all inquiries and mail to the Waring Road address)