Insights

Mid-sized Security Provider Capital Security & Investigations operates with a staff of 51 to 200 employees, indicating a focus on scalable security solutions that can appeal to medium-sized organizations seeking comprehensive investigative and security services.

Diverse Service Portfolio The company's broad range of offerings—including private investigations, surveillance, background checks, executive protection, and security products—creates multiple touchpoints for upselling and cross-selling security and investigation services to various client segments.

Technology Integration Utilizing technology platforms like WordPress, MySQL, and PHP, the company shows an openness to digital solutions, which can facilitate targeted digital marketing campaigns and online lead generation efforts for sales outreach.

Appealing to Niche Markets Their exclusive line of security products for families, homes, and businesses, tested and endorsed by law enforcement professionals, positions them strongly in niche markets focused on personal and asset protection, offering growth potential through targeted product promotions.

Competitive Positioning With revenue estimates up to 10 million and operations aligned among industry giants like Allied Universal and G4S, CS&I has opportunities to differentiate through personalized services, emphasizing confidentiality and specialized investigation expertise to attract clients seeking high-touch security solutions.

Similar companies to Capital Security & Investigations

Capital Security & Investigations Tech Stack

Capital Security & Investigations uses 8 technology products and services including Amazon Web Services, MySQL, Microsoft 365, and more. Explore Capital Security & Investigations's tech stack below.

  • Amazon Web Services
    Cloud Hosting
  • MySQL
    Database
  • Microsoft 365
    Email
  • Google Fonts API
    Font Scripts
  • yepnope.js
    Javascript Frameworks
  • SWFObject
    Miscellaneous
  • Nginx
    Web Servers
  • Apache
    Web Servers

Media & News

Capital Security & Investigations's Email Address Formats

Capital Security & Investigations uses at least 1 format(s):
Capital Security & Investigations Email FormatsExamplePercentage
FLast@capitalsi.comJDoe@capitalsi.com
38%
First.Last@capitalsi.comJohn.Doe@capitalsi.com
12%
FLast@capitalsi.comJDoe@capitalsi.com
38%
First.Last@capitalsi.comJohn.Doe@capitalsi.com
12%

Frequently Asked Questions

Where is Capital Security & Investigations's headquarters located?

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Capital Security & Investigations's main headquarters is located at 806 West Lake Street, Suite 608 Roselle, Illinois 60172, US. The company has employees across 3 continents, including North AmericaAfricaEurope.

What is Capital Security & Investigations's phone number?

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You can contact Capital Security & Investigations's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Capital Security & Investigations's official website and social media links?

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Capital Security & Investigations's official website is capitalsi.com and has social profiles on LinkedIn.

What is Capital Security & Investigations's SIC code NAICS code?

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Capital Security & Investigations's SIC code is 7381 - Detective, Guard, and Armored Car Services NAICS code is 5616 - Investigation and Security Services.

How many employees does Capital Security & Investigations have currently?

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As of October 2025, Capital Security & Investigations has approximately 77 employees across 3 continents, including North AmericaAfricaEurope. Key team members include Owner: B. W.Owner: L. S.Senior Operations Manager: S. R.. Explore Capital Security & Investigations's employee directory with LeadIQ.

What industry does Capital Security & Investigations belong to?

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Capital Security & Investigations operates in the Security and Investigations industry.

What technology does Capital Security & Investigations use?

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Capital Security & Investigations's tech stack includes Amazon Web ServicesMySQLMicrosoft 365Google Fonts APIyepnope.jsSWFObjectNginxApache.

What is Capital Security & Investigations's email format?

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Capital Security & Investigations's email format typically follows the pattern of FLast@capitalsi.com. Find more Capital Security & Investigations email formats with LeadIQ.

When was Capital Security & Investigations founded?

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Capital Security & Investigations was founded in 1998.

Capital Security & Investigations

Security and InvestigationsUnited States51-200 Employees

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.

Section iconCompany Overview

Headquarters
806 West Lake Street, Suite 608 Roselle, Illinois 60172, US
Phone number
SIC Code
7381 - Detective, Guard, and Armored Car Services
NAICS Code
5616 - Investigation and Security Services
Founded
1998
Employees
51-200

Section iconMedia & News

Section iconFunding & Financials

  • $1M$10M

    Capital Security & Investigations's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    Capital Security & Investigations's revenue is estimated to be in the range of $1M$10M

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