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What distinguishes Clandestine Investigation service from other agencies is the fact that we offer superior skills and experience we have gathered and brought to this agency, from both the private sector and state and federal agencies.

We are a second generation Private Investigation firm.


Reviews (3)

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8 March 2019

Great job and really good advice for Corporate theft problems.

23 July 2018

CIS is a second generation PI agency and a member of Licensed Private Detectives of Massachusetts. They have a nationwide network of Investigators and agencies that can assist with your particular needs.

They also have access to experts from all areas ....

Put the Power of Their Investigation to Work For You!


5/5 stars Process Serving Verified Review

THUMBTACK - Gold profile

The Best

Joe was very prompt, professional and courteous. I recommend him highly.

Deirdre L. on March 7, 2017
5/5 stars

Would have been lost with your help..

Thanks for pulling us through a tough situation.. we didn't like what we found out.. but you kept with it
We can move to the next step.
Joe was very good to us on pricing and spent a great amount of time walking us through our experience.
Thank you for everything..

Ed L. on February 18, 2017
5/5 stars

Understanding and insightful

Joe provided consultation on a very sensitive issue with potential legal implications for our Organization. His insight and perspective were very helpful and lead us to make the best possible decision for all concerned.

Peter B. on December 19, 2016

27 December 2017

No non sense tells it straight to you and isn't all about the money

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The sense of accomplishment. Knowing that we've answered the questions our client's have and that will make a difference for them.

My Dad was a Police Officer. Retired Sgt Detective and we began this agency together. I knew I wanted to be a "P.I." since the days of Rockford, Cannon and Magnum PI

We are locally owned with personalized service. We are not a huge national agency with an endless case file of Worker's Comp and Insurance work. You are not a "file number".

I meet with and know every client by name and what their story is. We are not about volume here, we are about quality of service.



We are CPCS certified with the Commonwealth of Massachusetts If you have a Pubic Defender we can be your Investigator as well, and bill to the state.