If you're looking for the best private investigation agency for lawyers and businesses, you've come to the right place. Interstate Investigation Agency has been serving attorneys and businesses throughout Massachusetts since 1979. The agency has built its reputation by providing professional service with exceptional results,often within challenging time frames.

Interstate Investigation Agency, LLC has the experience that can only be acquired through performing thousands of civil and criminal defense investigations. It is this experience that enables our clients to make more informed decisions. Our experienced and bonded investigators will handle your case with the confidentiality you deserve.

2 Summer Street, Suites #7 and #8
Natick, MA 01760