Detectives in Washington, DC

Comprehensive list of private detective agencies and investigators servicing Washington, DC.

Business Listings

Our main goal is to supply our clients with all the information they need to make the correct decisions about critical issues. We provide discreet private investigation services to clients in Los Angeles, Beverly Hills, San Diego, San Francisco, Houston, Denver, New York City, Washington DC and Virginia USA and the World. Do you suspect your spouse, partner, business associate or employees is being

  • "I am pleased to have a very positive and productive relationship with Morgan Turner Freeman

Prince Security Services has experience working in many industries. Prince Security Services. supplies professional uniformed guard services across the Washington Metropolitan area. With over 25 years of professional service and experience, we're committed to delivering superior guard solution for all of our customers.


Capitol Process Services. was established in 1981 with a vision to supply comprehensive services to the Washington Metropolitan legal community and the nation. We have since grown to become the biggest firm of our kind in the area with a roster of customers that includes most of the main companies in the Metropolitan area as well as many others around the country.



William G. Barry has unparalleled knowledge in the area of residential and international security. Mr. Barry has consulted on investigative security matters in the Unted States, Northern Ireland, the Middle East, and Eastern Europe. A long-time Special Agent and Supervisor with the Federal Bureau of Investigation, Mr. Barry was primarily responsible for residential security issues including investigations


Headquartered in Washington, DC, The Siroff Group is a complete service agency specializing in smart investigative strategies and detailed research solutions. Our capability to acquire critical information and provide outstanding results has gained our agency the recognition and respect of our customers, as well as our peers.


Miltec Security Corp. is a private security & investigative company that assists leading firms and government agencies secure critical facilities in the US and abroad. Our recruitment of active U.S. Military Personnel and residential law enforcement specialists has led to our reputation of operational excellence.


IGI is a preeminent private investigation and corporate intelligence company that has honed its world-class fact finding skills in a huge range of complex legal, financial and governance situations spanning twenty-five years. IGI's record of rising to challenging assignments while adhering to the best ethical standards has established an unsurpassed reputation for professional excellence in the corporate,


Additionally, SJ Investigative Services supplies honest and professional investigative services, using the soundest, most ethical techniques available. Each customer is delivered with a comprehensive, thorough and comprenhensive report at the conclusion of every investigation.