Hours of Operation: Mon - Fri 8:00am - 8:00pm

"Marc and his team are extremely professional and can handle any investigation. I have used his services in the past multiple times to the great satisfaction of my clients. Highly recommended."

Katharine Tremblay Beck
Tremblay Beck Law, APC.

"Marc is the absolute best. I have worked with many investigators throughout the state, and Marc is the top among all of them....He is our go-to investigator and I highly recommend him."

Adam Hepburn
Partner & Attorney-At-Law
HHJ Trial Attorneys

"I have used Marc at GRI Investigations on many of my personal injury cases for a number of assignments. He is always professional and prompt on his turnaround time. His background in law enforcement makes him superb at what he does and is an asset to anyone who hires him." 

Jillian Hayes
Hayes Law, APC.

"Marc at GRI Investigations handles all of our difficult investigations. Marc is efficient, responsive and successful with all of our requests. HHJ Trial Attorneys highly recommends GRI Investigations."

Shelby Cardoza
Senior Litigation Paralegal
HHJ Trial Attorneys

"GRI Investigations are professional, experienced and efficient private investigators. I have used their services on many of my legal cases. I highly recommend their investigative services. "

Jose Orozco
Orozco Law Firm

"Thank you for the investigative report. Your efforts assisted me in obtaining a decision in my client's favor. The judge also made positive comments about your experience and background."

Mark Nelson, Esq.
Family Law Attorney

"The staff is always very responsive. They have helped me and many of my clients out. I would highly recommend people to use the services of GRI Investigations."  

Laura Talamantes
Talamantes Law Firm

"Whether our office has a civil dispute, divorce case or immigration matter, GRI Investigations is the first call we make when we are in need of information and evidence."

Ed Perez
Law Offices of Ed Perez

"Marc is a consummate professional. With his prior background in law enforcement, he is able to most effectively assist people with their legal matters, including Spanish-speakers. I am an attorney and he has assisted both my immigration and criminal defense clients with obtaining necessary documentation to put them in the best position possible. Highly recommended..."  

-Winston S., Attorney-at-Law

I wish I could give 10 Stars, I was referred to this company by a very good friend of mine & they did not disappoint. Marc's customer service was A1 & I will be recommending anyone in need of these type of services to contact Marc & his team. The turn around time is unbelievable! I appreciate you Marc & wish you well on all of your future endeavors."

-Tina Marie S., Private Client

"GRI Investigations saved me from making a 60K investment that would've went south and been a huge financial stressor during challenging times..."  

-Benjamin Landry, Business Owner

".....the court ruled entirely in my favor. We presented a strong case. Thank you once again for your excellent and professional support."

-A.Ballon, Private Client

"I was referred to Marc, and this man did not disappoint.  He provided the information I needed to help me make a legal decision that dragged on for years.  His investigation work was provided in a timely manner and has been very professional and detailed oriented in the information he provided me."

-Omar Braddick, Private Client

"I own a litigation support company. At times I need to locate individuals for service of process and other legal issues. Whenever I need to find someone, I go to GRI for their services. If you need someone found, they will find them."

-J. Sanchez, Business Owner

"I needed help representing myself in a case, Pro Per. I hired Marc to investigate some claims, gather some statements under oath and file the paperwork with the court...because I live 2 states away. Marc went above and beyond. He worked fast and communicated very well. Marc reminded me of legal deadlines and made sure we got all our papers submitted in time. Highly recommended."

-B.B., Private Client

"I can’t recommend GRI enough. He helped me with a harassment situation. It was confidential and I definitely felt safer knowing I had GRI on my side. The law enforcement background is a plus as it can be helpful in many aspects of any investigation. True professionals! You won't regret hiring GRI."

-A. Hernan., Private Client