Colorado Special Investigations initiates every relationship or Domestic infidelity Investigation case using state-of-the-art video and/or digital pictures with audio recording devices to determine if your significant other is being unfaithful. We provide a wide range of surveillance services for a number of situations including verification or confirmation of cheating.

Cases investigated by our Fraud Unit most often involve civil acts including automobile property/personal injury, and residential/commercial property claims. Some examples of the types of insurance fraud that are investigated by us include:
• Automobile Collision
• Automobile Property
• Medical
• Life
• Workers' Compensation
• Fire
• Property
• Healthcare

Colorado Special Investigations process service is about quality, not quantity as we serve with reasonable care! Due diligence is a huge part on how we conduct our business: The liability of serving is with us, not with the client!

Highlights, Specialties & Features

  • BBB of Southern Colorado
  • Denver/Boulder Better Business Bureau

Professional Associations & Certifications

  • Colorado Criminal Defense Bar
  • Colorado Alternate Defense Counsel Investigator Verified
  • Greater Colorado Springs Chamber of Commerce

Serviced Areas

  • Colorado Springs Colorado, Denver Colorado, Boulder Colorado, Aurora Colorado, Pueblo Colorado, Canon City Colorado, Woodland Park Colorado, Castle Rock Colorado

Payment Options

  • Money Orders, Discover, Personal Checks, Debit Cards, MasterCard, VISA

Contact Details

  Person Sean Moncalieri
  City Colorado Springs , CO
  Zip Code 80903
  Address 408 South Tejon Street, Ste. 202
  Phone Number (719) 473-8882
  Tollfree 888-661-8882
  Fax 719-434-4460

Business Representative

Sean Moncalieri

Chief Investigator

Professional Experience

2008 to present: Colorado Special Investigations, Inc., Colorado, Private Investigations Firm, CEO-Chief Investigator (2008-Present)

2007: Colorado Technical University, CTU, Colorado Springs, CO, Criminal Justice Division Adjunct Professor/Instructor (Dean-Louis Velez)

2006 to present: National Security Investigative Service, Ltd.: d/b/a Colorado Special Investigations, Colorado Springs, CO and Sacramento, CA, Private Investigations Firm, Vice-President (2006-2008) CEO (2008-Present)

2005 to 2008: Pikes Peak Community College, PPCC, Colorado Springs, CO, BSBS Criminal Justice Adjunct Professor (Chair-Ken Morris)

2005 to 2008: Regional Law Enforcement Academy, PPCC, Colorado Springs, CO, Instructor

2001 to 2007: El Paso County Sheriff’s Office, EPSO, Patrol Division, Colorado Springs, CO, Deputy Sheriff/Detentions/Patrol/S.W.A.T. Operator-Sniper

2001: Department of Justice, Federal Bureau of Prisons, Florence, CO, United States Penitentiary (USP), Correctional Officer

1993-2009: United States Armed Forces


B.A., Criminal Justice with Honors, American Military University (Graduated September 2004).

B.S., Criminology/Sociology, Colorado State University-Pueblo (May 2002-July 2004).

A. A. S., Criminal Justice, Patrol Option, PPCC, (Graduated May 2002).

A. A. S., Criminal Justice, Investigations Management, PPCC, (Graduated May 2002).

Professional Education-Year Completed

USAF Security Police Academy-1993

U.S. Customs Enforcement-1994

USAF NCO Ground Combat Skills Level II Course-1997

USAF Airmen Leadership School-1997

U.S. Army Correctional Correspondent Course-1999

USAF Security Forces Craftsman Course-2000

U.S. Customs Enforcement Course-2000

Colorado Regional Law Enforcement Academy-2001

Federal Law Enforcement Training Center-2001

El Paso County Sheriff’s Office Academy-2001-Called for active duty for 9/11

El Paso County Sheriff’s Office Academy-2003

Advanced Marksmanship/Observer Course (Sniper School)-2005

EPSO Basic SWAT Course - 2005

Photo Book