Winquist Investigations | About Us - Winquist Investigations

About Us

Over 25 Years of Investigative Service

Rose Winquist Company is a Seattle based full-service investigative agency assisting clients worldwide. Since 1988 we have served the legal, insurance and business communities, as well as private parties.

Our founder, Rose Winquist is an established leader in the profession. She has earned the respect of attorneys, experts, and investigators worldwide.


Experienced Professionals

The investigators on staff are seasoned professionals with decades of experience, and many are retired law enforcement officers. They have the experience, resources and professional pride that guarantees the best possible outcome for your investigation.

Our team maintains a well deserved professional reputation as a results oriented full-service agency. We are committed to due diligence, creative resources and tenacity on behalf of our clients.


Licensed, Bonded, Insured

We are members of the Washington Association of Legal Investigators and the Pacific Northwest Association of Investigators. Rose Winquist Co., Inc. is a licensed private investigative agency headquartered in Washington State.

Our UBI business license number is 6011614693. We are bonded and insured for $2,000,000 U.S. Dollars.


Ready to Help You

Investigative work is a specialty service that requires experience, a knowledge of the law, an understanding of technical information avenues, a certain tenacity and a fair amount of intuition. Most of the work we do is in support of attorneys, but we also assist regularly with insurance agencies, business owners and private parties.