Business Details
44 Years
experience
Emergency
services
Professional Private Investigators in Denver
Divirgilio Anthony has served the legal and business community in Denver, Colorado since 1982. Under the leadership of Anthony DiVirgilio, a retired Police Division Commander with over 40 years of investigative experience, and Paige Dreier, an experienced criminal defense investigator, we provide nationwide investigative services tailored to legal professionals, corporations, and business entities. Our team combines decades of law enforcement expertise with specialized knowledge in federal sentencing guidelines, asset searches, and complex case investigations. We maintain strict confidentiality while delivering results through a network of seasoned professionals and advanced investigative techniques. Our commitment to integrity, discretion, and professionalism has established us as a trusted partner for legal and business professionals nationwide.We specialize in criminal defense investigations, personal injury accident investigations, surveillance operations, witness interviews, nationwide background checks, and asset searches. Our investigators hold advanced degrees in criminal justice and sociology, ensuring comprehensive analysis of complex cases. We work exclusively for attorneys to preserve attorney-client privilege while providing strategic support throughout all stages of legal proceedings. Our legacy of excellence spans four decades, with a proven track record of delivering actionable intelligence and courtroom-ready evidence. We maintain active partnerships with forensic experts, medical professionals, and legal consultants to provide multidisciplinary solutions for our clients.
Services
Criminal Defense Investigations
Federal Sentencing Analysis
Nationwide Asset Searches
Surveillance Operations
Witness Interviews
Personal Injury Investigations
Corporate Internal Investigations
Sexual Assault Investigations
Pretrial Investigations
Background Checks
Details
- Year established: 1982
Highlights and features
- We offer 40+ years of investigative experience in law enforcement and legal investigations
- Our team includes former federal probation officers and police commanders
- We maintain nationwide investigative capabilities with local expertise in Colorado
- We guarantee strict confidentiality and attorney-client privilege protection
- We provide multidisciplinary support with access to forensic and legal experts
What people say
Extremely valuable insights
Nationwide network of contacts
Thorough and knowledgeable
Extensive legal knowledge
Professional and reliable
Services
Criminal Defense Investigations
We provide comprehensive criminal defense investigation services for state and federal cases. Our team conducts detailed case analysis, witness interviews, and evidence collection to support defense strategies. With expertise in federal sentencing guidelines and complex case management, we help attorneys build strong defense cases through thorough investigation and expert consultation.
Federal Sentencing Analysis
Our federal sentencing specialists analyze sentencing guidelines and conduct mitigation investigations for criminal cases. We prepare detailed reports on defendant backgrounds, identify mitigating factors, and coordinate expert testimony to support sentencing negotiations and court proceedings in federal cases.
Nationwide Asset Searches
We conduct comprehensive asset searches across the United States using advanced investigative techniques. Our services include identifying real estate holdings, financial accounts, business interests, and other valuable assets through public records research and database analysis for legal and financial matters.
Surveillance Operations
Our licensed investigators perform discreet surveillance operations for legal cases and insurance investigations. We use advanced equipment to document activities, verify claims, and gather evidence while maintaining strict ethical and legal standards throughout the surveillance process.
Witness Interviews
We conduct professional witness interviews and location services for legal cases. Our investigators use proven techniques to locate witnesses and obtain detailed statements that support case development while maintaining proper documentation and chain of custody protocols.
People
Anthony DiVirgilio
President and Co-Founder
Retired Police Division Commander with 40+ years of investigative experience. Specializes in federal white collar cases, homicide investigations, and complex criminal defense matters. Holds a degree in Sociology and Police Science.
Paige Dreier
Investigator
Criminal justice graduate with expertise in sexual assault investigations and Title IX cases. Conducts witness interviews and background investigations while organizing discovery materials for complex legal cases.
Jessica White
Investigator
Criminal justice master's graduate specializing in witness interviews, asset searches, and personal injury accident investigations. Combines academic expertise with practical investigative experience for legal cases.
Michael Martinez
Investigator
Former United States Probation Officer with 20+ years of corrections experience. Specializes in pretrial investigations, presentence reports, and federal sentencing guideline analysis for complex legal cases.
Richard Vaccaro
Investigator
Former Federal Probation Officer with expertise in sentencing mitigation and offender supervision. Provides consultation on federal sentencing procedures and conducts comprehensive mitigation investigations for criminal defense cases.
Questions
What types of investigative services do you offer?
We provide criminal defense investigations, federal sentencing analysis, asset searches, surveillance operations, witness interviews, and nationwide background checks for legal and business clients.
How do you ensure confidentiality in investigations?
We maintain strict confidentiality protocols and work exclusively for attorneys to preserve attorney-client privilege throughout all investigative processes.
Do you handle cases outside Colorado?
Yes, we offer nationwide investigative services with a network of contacts and investigators across the United States.
What experience do your investigators have?
Our team includes former police commanders, federal probation officers, and investigators with advanced degrees in criminal justice and sociology.
How do you support legal professionals?
We provide courtroom-ready evidence, expert witness coordination, and strategic case support throughout all stages of legal proceedings.
What sets you apart from other investigators?
Our 40+ years of experience, law enforcement expertise, and multidisciplinary approach create unique value for legal and business clients.
Reviews (2)
Dianne Noah
Dec 12, 2019
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Our law firm has used Tonys services for many years. We know we can count on him to be thorough and extremely knowledgeable which makes him an asset on any case . He has an extensive knowledge of the law and we know that he will do everything he can to help our clients.
Jeralyn Merritt
Jun 18, 2019
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Tony has been my "go to" investigator for complex federal cases for more than 20 years. He is well-versed in all aspects of the criminal case and provides invaluable assistance at all stages, from bond hearings to managment of e-discovery, conducting witness interviews, locating the right expert witness for my issue, challenging wiretap and search warrant affidavits, developing impeachment evidence on the government's witnesses for trial, and if need be, gathering mitigation evidence for sentencing.
Tony also creates an excellent rapport with my clients and they trust him. His top-notch staff
Tony also creates an excellent rapport with my clients and they trust him. His top-notch staff
