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M-F 8 a.m.- 7 p.m. Weekends 9 a.m.-3 p.m.
  • Disabled Services
Payment method
discover, visa, debit, master card
Downtown Denver, Central Business District
Private Investigators & Detectives
Other Information

Services: Disabled Services


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Provided by Citysearch - 
The agency above all investigation firms!

Although individual testimonials to Colorado Special Investigations' expertise and accomplishments along with providing accolades to this investigations firm could easily fill more pages than most would care to read; over the years we have been equally impressed with their ethical, direct and honest personalities.

The level of professionalism within this organization is impressive and very much appreciated. If you are in any need of any surveillance work, workers comp investigations, accident investigations, skip trace, or private investigation work in general, look no further as the agents at CSI are there to help you get you the evidence you need!

A thank you is inadequate to this firm.



The Top Colorado Detective Agency

We have searched long and hard for an investigator who was professional, tenacious, and trustworthy. We used a few investigators, and while a couple were good, I was not completely satisfied with the work product. An attorney I respected and now a State Representative recommended Sean Moncalieri. We have very high standards and Colorado Special Investigations meets those standards... they give 110% to every case! The equipment they use in their personal injury cases are of the latest technology and the reports are detailed and thorough. I hesitate to recommend Sean and Colorado Special Investigations for only one reason; I would never want to find him or his investigators working on behalf of opposing counsel. We cannot say enough about Sean Moncalieri and the people he has working for him at Colorado Special Investigations as they are the best in the business!

David McDivitt, Vice President

McDivitt Law Firm, Denver, CO



Great! Great! Great!

I have a lot of respect for this company and its owner. After meeting him after he donated thousands of dollars to the March of Dimes, I spoke to him and found out what he does. Although hesitant, I asked Sean for help. He kept it confidential and me informed every step of the way. Sean and his team of professionals know what they are doing, know who they are as professionals and get's the job done and done right! Look no further...this is "your investigations firm!"