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Capital Security & Investigations
Phone: 866-524-0711
Private Investigations
Private Investigations
Workers Compensation Fraud, Criminal and Domestic Investigations
Contract Security
Contract Security
Licensed Security and Loss Prevention
Process Service
Process Service
Civil Process and Subpeona Service
Background Checks
Background Checks
Comprehensive Background and Pre-employment Services
Mystery Shopping
Mystery Shopper
Unbiased Evaluations of Your Business Operations
Featured Product
Photoblocker Spray
Featured Product Featured Product
Professional Tools
Semen and Sperm Detection
CSI Privacy Notice
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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
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"
Capital Security & Investigations, Inc. is a BBB Accredited Investigator in Roselle, IL
State Certifications and Licensing
© 2016 Capital Security & Investigations, Inc. All rights reserved.
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