Company lists · Data refreshed September 2026
Top 25 Security system integrators based in Indianapolis, United States
RevenueBase identified 42 security system integrators headquartered in Indianapolis, United States as of September 2026 and tracks 1,510 professional contacts across them, including 546 with verified work emails. Houston is the largest hub.
This list covers security system integrators headquartered in Indianapolis, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 system integrators based in Indianapolis, United States
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Partial evidence | 834 contacts → | |||
“Koorsen Fire & Security is a family-owned operation that has kept homes and businesses safe for more than 70 years.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Partial evidence | 302 contacts → | |||
“Sonitrol is the industry leader in verified electronic security and provides customers with a single source of integrated security solutions for intrusion, video, access and fire.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Partial evidence | 50 contacts → | |||
“Fairchild Communications is a leader in systems integration, thanks to the people putting those systems to work.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Strong evidence | 47 contacts → | |||
“Jackson Control is a leading national distributor and systems integrator of building technologies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Strong evidence | 36 contacts → | |||
“Commercial and Residential Security system design and installation, including camera surveillance and 24/7 monitoring of all doors and windows.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Partial evidence | 17 contacts → | |||
“iTech Digital Security Solutions designs customized video surveillance solutions based on your unique business challenges to help you reduce risk, enhance safety, and maximize…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Strong evidence | 16 contacts → | |||
“Security Automation Systems, Inc.(SAS) specializes in providing and installing electronic safety & control systems for correctional and other government facilities.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Indirect evidence | 16 contacts → | |||
“With over 25 years of experience, Millennium Sounds has earned a reputation for excellence in designing and integrating cutting-edge audiovisual and smart technology solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Strong evidence | 15 contacts → | |||
“SiteWise provides high-quality, value-driven communications, audio-visual and building security systems in the Midwest and across the United States to meet our customers' needs.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Partial evidence | 11 contacts → | |||
“Since 1991, Nelson Alarm has delivered “Only the Best” in security solutions for homes and businesses throughout Indianapolis.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Partial evidence | 11 contacts → | |||
“Hoosier Security Solutions is a Nationally Certified MBE.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Strong evidence | 9 contacts → | |||
“BTI offers a wide range of services, including the installation of digital signage systems, interactive projectors, physical security systems, audio solutions, interactive flat…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Indirect evidence | 8 contacts → | |||
“It’s our attention to details, scheduling of timelines and project management that makes APTEK stand out from the rest.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Strong evidence | 4 contacts → | |||
“Secure Marketing Solutions, established in February, 2010, offers a dedicated professional sales team with a combined 50+ years of experience in security systems sales and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Partial evidence | 3 contacts → | |||
“System integration, multi-platform controls and engineering, and a fully owned UL508A control panel facility, we can help you with your control projects, bringing your processes…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Strong evidence | 3 contacts → | |||
“Security Data Systems is a central Indiana company based out of Indianapolis, serving the technology needs of like-minded businesses.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Indirect evidence | 3 contacts → | |||
“From one-off projects and applications to immediate and on-going initiatives, BDIS can augment your existing technology team or serve as your de facto professional service…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Indirect evidence | 3 contacts → | |||
“At USA Alarm Service, we believe that your property and loved ones deserve the highest level of protection.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Partial evidence | 3 contacts → | |||
“CK2 Technologies helps schools, hospitals, arenas, and public spaces protect their communities with modern, frictionless weapons detection systems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Partial evidence | 2 contacts → | |||
“Welcome to AV Designers, your premier Audio, Video, Data Network, Automation, and Closed Circuit Security contractor in the commercial marketplace.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Strong evidence | 2 contacts → | |||
“Founded in 1976, Multiguard Corporation provides electronic security and life-safety systems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Indirect evidence | 1 contacts → | |||
“Ready for a service provider to exceed expectations on your next technology project?” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Indirect evidence | 1 contacts → | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Partial evidence | 1 contacts → | |||
“ProTECHt your local Brinks Home SecurityTM Authorized Partner has been in the security business for over a decade servicing residential and commercial customers!” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Indirect evidence | 1 contacts → | |||
“SHS is Indiana's top local ADT Authorized Dealer.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security system integrators. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security system integrators.
- Partial evidence
- Its own public description names part of security system integrators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security system integrators. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 42 security system integrators based in Indianapolis, United States
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Security system integrators based in Indianapolis, 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 Indianapolis, over 42 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 system integrators, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Indianapolis, United States whose own description of what they do matches “security system integrators”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security system integrators), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among security system integrators, and records with no verified work email. Companies headquartered outside Indianapolis 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 its RevenueBase Smart Search 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, 546 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 system integrators by metro in the United States
- Security system integrators in Houston136
- Security system integrators in New York119
- Security system integrators in Miami79
- Security system integrators in Los Angeles73
- Security system integrators in Dallas70
- Security system integrators in Atlanta59
- Security system integrators in Austin48
- Security system integrators in Phoenix48
- Security system integrators in Chicago43
- Security system integrators in Indianapolis42
- Security system integrators in Tampa42
- Security system integrators in Las Vegas41
- Security system integrators in San Antonio38
- Security system integrators in San Diego37
- Security system integrators in Charlotte35
- Security system integrators in Denver33
- Security system integrators in Brooklyn29
- Security system integrators in Orlando29
- Security system integrators in San Jose29
- Security system integrators in Raleigh28
- Security system integrators in Irvine27
- Security system integrators in Jacksonville27
- Security system integrators in Scottsdale26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security system integrators, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many security system integrators are there based in Indianapolis, United States?
RevenueBase identified 42 security system integrators headquartered in Indianapolis, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Koorsen Fire And Security, headquartered in Indianapolis, tops this list with the largest team on record.
Which city has the most security system integrators?
Houston leads with 136 headquartered companies, followed by New York (119) and Miami (79).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 546 verified decision-maker contacts tracked across these 42 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
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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 Smart Search, 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.
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