At Terrier Claims Services we are committed to providing our clients with the most efficient, effective claims handling your company has ever experienced. Terrier Claims Services provides full service insurance investigations, trial preparation, surveillance, and property adjustments.

Since 1996 our system of aggressive result oriented investigations has made us the fastest growing independent company in the northeast.


Founded in 1996 by brothers, Dan and Edward Sullivan, TCS is a full service claims investigation firm dedicated exclusively to insurance defense, third party administrators, defense attorneys and government agencies.

The company’s mission is a simple one.

  • Deliver a consistent, high-quality service at a fair price.
  • Maintain the highest ethical standards.

Over the years, TCS has taken on several partners and become the northeast’s largest full service independent firm. TCS has grown to a staff of over 100. All of our investigators and property specialists are licensed, bonded, seasoned, full-time professionals. Each associate is required to pass both written and field exams designed in-house. TCS prides itself in the ability to keep staff current regarding any changes to insurance law and legal issues.

Our investigations are customized to suit your specific needs and are aggressively pursued to an economical and efficient disposition. Our extensive experience insures creative solutions to even the most challenging investigations and claims. Our services are available 24 hours a day, seven days a week.

Our state of the art claims management system is now available.  Submit a claim directly from the Submit Claim tab on this website.  Customers can receive reports and video in the traditional manner or connect directly to the claims management system to download reports, photos and enclosures as they become available.  Streaming and downloading of video  and other large files provide fast access to critical information.  These features along with our SOC2 Type 2 security certification enable TCS and clients to communicate securely in real time. 

Terrier Claims Service was established to create a new model of effectiveness, efficiency and excellence in an industry where adequate performance is not enough. We separate ourselves from other firms by combining cutting-edge computer tracking and processing technology with aggressive instinct to produce the ultimate end product–results. Terrier Claims is excited at the prospect of demonstrating our abilities and exceeding your highest expectations.

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