Hunt Investigations
- Provides personal injury investigations, insurance claims and fraud, process service, and background checks.
- http://www.huntinvestigations.com/

Associated Research & Investigations, Ltd.
- Investigation services for insurance, legal, corporate and business, workers' compensation fraud and attorneys. Based in Newtown.
- http://www.associated-research.com/

DataTrack Resources, LLC
- Glastonbury-based firm that provides computer investigations and data recovery services for individuals, companies, the legal profession and law enforcement agencies.
- http://www.datatrackllc.com

Hettrick, Cyr & Associates, Inc.
- Safety and risk management, OSHA compliance, special investigations, and background screening services. Located in East Hartford.
- http://www.hettrickcyr.com/

Diogenes, LLC
- Southbury-based agency providing investigative services for theft and fraud, pre-employment screening, undercover, cold case files, surveillance and insurance claims, among other practice areas.
- http://www.diogenesllc.com/

Intelex, Ltd.
- Business intelligence and due diligence services for the financial community.
- http://www.intelexltd.com

John R Spencer Investigations
- Ashford agency offers services to legal and the private sector.
- http://www.ctprivateye.com/