Company lists · Data refreshed September 2026
Top 25 Security companies based in Chicago, United States
This directory lists 102 security companies based in Chicago, United States, with 2,581 contacts and 484 email addresses for business research and outreach. As of September 2026, New York is the single most-represented city among the companies on the list.
Security companies provide services, systems, or products that protect people, property, facilities, data, networks, or other assets from security threats. This list covers companies that provide security products or services, including physical security, cybersecurity, monitoring, access control, risk management, and related protection solutions. Ranked by team size, largest first. Data current as of September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest security companies based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,138 | ||||
“At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 240 | ||||
“AGB is the largest black-owned, award winning security firm that opened in Chicago in 2001 and has grown to 1300+ employees.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 142 | ||||
“Incorporated in 1996, S3: Safety Service Systems, Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 61 | ||||
“Prudential Defense Solutions is a full‑service security provider offering professional guard services, door staff, and government‑contractor.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 45 | ||||
“Our mission at MFort Security Services is simple: to provide high-quality service and build partnerships.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 36 | ||||
“Extrity Services provides top-notch security professionals in Philadelphia, Chicago, and Nashville.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 29 | ||||
“Chicago Fire Protection LLC is a full service, fire sprinkler/alarm contractor, signatory with Local 281 Sprinkler Fitters and IBEW Local 134 Electricians.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 27 | ||||
“Trusted protection and investigative services with a commitment to excellence.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Benford Protection GroupIndirect evidence | 25 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Kinetic GlobalStrong evidence | 20 | |||
“Kinetic Global is a global duty of care and security company operating in more than 175 countries.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 19 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 18 | ||||
“Halo Security Group is a Chicago-based professional security services company providing comprehensive and reliable protection for businesses, residential communities, and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 | ||||
“Universal Security, founded by retired Chicago Police Officer Mark Lundgren in August 1992, proudly carries a legacy of security excellence.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 | ||||
“Inner Valor is a premier provider of White Glove Security℠ and corporate investigation services, offering elite and personalized solutions to protect your assets, people, and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Skynet Security SystemsStrong evidence | 11 | |||
“SkyNet Security Systems was founded by a group of highly experienced and innovative security professionals who care about their clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Valle ServicesIndirect evidence | 10 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Mccarthy ByrnesStrong evidence | 10 | |||
“Security Consulting | Private Investigations | Law Enforcement Consulting | McCarthy Byrnes is a trusted security, investigations, and public safety advisory firm providing…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 | ||||
“We are Chicago's only veteran owned and staffed security contractor.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Vintech Systems INCStrong evidence | 9 | |||
“Established in 2006, VinTech is a Chicago-based, full-service, electronic security solutions provider.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 | ||||
“Full Service Security Provider, Alarm Response, Patrol, Armed Security, Unarmed Security, Off Duty Police, Alarm Installation and Monitoring, CCTV Cameras, Access Control.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Tribe SecurityStrong evidence | 5 | |||
“Illinois only Native American owned and operated security company.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 | ||||
“E’CLAT offers a comprehensive range of intelligent security services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | RigilityIndirect evidence | 4 | |||
“At Rigility, We install, maintain, and repair commercial surveillance camera systems nationwide ranging from 4K surveillance cameras for small businesses to enterprise-grade…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | TOP Tier Safety INCStrong evidence | 4 | |||
“Top Tier Safety Inc is a security and investigations company based out of E Wacker, Chicago, Illinois, United States.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Ashland Lock And Security SolutionsIndirect evidence | 2 | |||
“You can depend on Ashland Lock for comprehensive and responsive service and support throughout the Chicago metropolitan area.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 102 security companies based in Chicago, United States
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Security companies based in Chicago, United States at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 102 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Chicago, United States whose own description of what they do matches “security companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security companies, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 484 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security companies by metro in the United States
- Security companies in New York224
- Security companies in Los Angeles187
- Security companies in Houston184
- Security companies in Miami154
- Security companies in Chicago102
- Security companies in Atlanta99
- Security companies in Dallas99
- Security companies in Austin84
- Security companies in Phoenix84
- Security companies in Las Vegas67
- Security companies in Orlando66
- Security companies in San Antonio59
- Security companies in Tampa59
- Security companies in Charlotte56
- Security companies in Denver56
- Security companies in San Diego55
- Security companies in Indianapolis46
- Security companies in Sacramento46
- Security companies in San Francisco45
- Security companies in San Jose45
- Security companies in Jacksonville44
- Security companies in Seattle44
- Security companies in Baltimore42
- Security companies in Nashville37
- Security companies in Fort Lauderdale36
- Security companies in Columbus34
- Security companies in Memphis34
- Security companies in Portland34
- Security companies in Washington34
- Security companies in Philadelphia32
- Security companies in Raleigh32
- Security companies in Columbia31
- Security companies in Fort Worth31
- Security companies in Cincinnati30
- Security companies in Brooklyn29
- Security companies in Louisville28
- Security companies in Wilmington28
- Security companies in Albuquerque26
- Security companies in Richmond26
- Security companies in Riverside26
- Security companies in Springfield26
- Security companies in Boca Raton25
- Security companies in Boston25
- Security companies in Colorado Springs25
- Security companies in Irvine25
Frequently asked
How many security companies are based in Chicago, United States?
RevenueBase counts 102 security companies based in Chicago, United States on this list.
How many contacts and email addresses are available for security companies?
The list includes 2,581 contacts and 484 email addresses for security companies.
Which city has the most security companies on the list?
New York is the single most-represented city among the companies on the list.
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Security companies by geography
- Security companies based in the United States
- Security companies based in the United Kingdom
- Security companies based in Brazil
- Security companies based in France
- Security companies based in Canada
- Security companies based in Germany
- Security companies based in Italy
- Security companies based in Australia
- Security companies based in the Netherlands
- Security companies based in Mexico
- Security companies based in South Africa
- Security companies based in Spain
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.