Private Investigation   |   Contract Security    |   Process Service   |   Background Checks   |   Mystery Shopping   |   Products Phone: 866-524-0711 Home Services Products About us Join Our Team Contact us Private Investigations Workers Compensation Fraud, Criminal and Domestic Investigations Contract Security Licensed Security and Loss Prevention   Process Service Civil Process and Subpeona Service   Background Checks Comprehensive Background and Pre-employment Services Mystery Shopping Unbiased Evaluations of Your Business Operations   Featured Product   Photoblocker Spray     Professional Tools CSI Case Management Log In CSI Process Server Toolbox Log In Welcome to Capital Security & Investigations Capital Security & Investigations, founded in 1998, has been providing professional, confidential and discreet investigative services to insurance companies, law firms, individuals and corporations of all sizes. Our broad range of services includes private investigation, surveillance, background checks, civil process service, executive protection, mystery shopping, loss prevention and security guard contracting. CSI carries a unique line of security products for families, homes and businesses. Our cutting-edge products give parents new options in monitoring their child’s movements and activities. Our products have been field tested and proven effective by CSI investigators. Our exclusive line of merchandise has been specifically chosen by law enforcement and security professionals. During these times of exceptional uncertainty, accurate information is critical to your decision-making process. Let CSI reduce your company’s exposure to threats and protect your employees and assets. At CSI, our commitment is to provide our clients with the most comprehensive information possible to make informed decisions. Please take a moment to browse our website to learn how CSI can assist you with your security concerns. Contact us for a confidential case analysis at 866-524-0711. Licensed Private Investigator, IL PI: 117-001004, IL Guard: 122-000781, WI: 16483-062, CA: 24898 Testimonials   I wanted to take this opportunity to say what a pleasure it was working with your staff at the 2008 Chicagoland Fall Home Show. Your employees were courteous, friendly, prompt, and very professional. I appreciate all the hard work they put in helping make the show a success. I look forward to doing business with your company in the future. Thanks again! “Sincerely, John, Glen Ellyn, IL"   From start to end, working with the awesome office staff and your excellent security professionals… Capital Security & Investigations is our #1 choice for security service in the Chicagoland area. “Shelly, Holt, MI" Regarding your process service, WOW. Speedy! “Thanks!!!! Ingrid, Ontario, Canada"   read more Affiliations www.asisonline.org www.napps.org www.PINow.com www.ServeNow.com State Certifications and Licensing © 2008 Capital Security & Investigations, Inc. All rights reserved.