Rocky Mountain Laboratories - Expert scientific analysis and testimony in the areas of toxicology, fire causation, and gunshot residue (GSR).

Computer Audio Engineering - Forensic audio services for criminal and civil litigation, including advanced digital signal processing, enhancement, authenticity analysis, dialogue decoding, and sound analysis.

Formedecon, Ltd. - Offering consultation and expert testimony for forensic science matters in the United Kingdom.

SIMEF - Private forensics consultants in Reggio Calabria, Italy. DNA testing, firearms identification, toxicology, and other testing for medical and legal purposes.

Keith Borer Consultants - Forensic consultancy company based in the UK, dealing with both civil and criminal cases.

American Forensic Technologies - Forensic science and engineering services, products, and books.

Materials and Chemistry Laboratory, Inc. - Industrial forensics, materials characterization, process optimization, and environmental chemistry.

B. J. Gerlitz Forensic Consulting - Providing consulting services for civil and criminal litigation, primarily involving alcohol consumption.

Clue Finders, Inc - Forensic consultants.

Michael J. Sweedo, CLPE - Certified senior crime scene expert, certified latent print examiner and bloodstain pattern analyst.

Fingerprints and Forensic Services Ltd - New Zealand based company, specialising in fingerprint practice, serving public and private clients, domestically and internationally.

Hawkins and Associates Ltd. - Established 1980 to investigate fires, explosions, road traffic accidents and engineering problems, with offices in four cities in England.