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