Company lists · Data refreshed September 2026
Top 25 Security infrastructure contractors based in the United States
RevenueBase identified 3,747 company matches for security infrastructure contractors associated with the United States as of September 2026 and tracks 80,564 professional contacts across them, including 20,668 with verified work emails. New York is the largest hub.
This list covers company matches for security infrastructure contractors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 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 infrastructure contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,707 contacts → | ||||
Exact match “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 4,038 contacts → | ||||
Exact match “Excelsior Defense is a security and investigations company based out of St.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 3,592 contacts → | ||||
Exact match “U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 2,678 contacts → | ||||
Exact match “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 2,045 contacts → | ||||
Exact match “Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 1,949 contacts → | ||||
Exact match “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 1,406 contacts → | ||||
Exact match “As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 1,287 contacts → | ||||
Exact match “Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 1,138 contacts → | ||||
Exact match “At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 1,120 contacts → | ||||
Exact match “Per Mar Security Services is the largest full-service security solutions provider in the Midwest.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 1,118 contacts → | ||||
Exact match “Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 849 contacts → | ||||
Exact match “Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 839 contacts → | ||||
Exact match “Securitas knows Security.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 799 contacts → | ||||
Exact match “ADT Commercial, LLC was acquired by GTCR and is now Everon, LLC.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 564 contacts → | ||||
Exact match “Ford AV designs, installs, and services professional and commercial sound, audio-video, network infrastructure, and security surveillance systems for organizations including…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 545 contacts → | ||||
Exact match “At Indiana Technical Installations we provide IT Services/Networking, Home & Business Security/Surveillance Services, Custom Audio/Video and more.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 427 contacts → | ||||
Exact match “NAPCO Security Technologies (NASDAQ: NSSC) is one of the world's leading manufacturers of technologically advanced electronic security equipment including intrusion and fire alarm…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 406 contacts → | ||||
Exact match “Since we opened our doors in 1963, relationships have been are our strength by putting people before products.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 389 contacts → | ||||
Exact match “Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 343 contacts → | ||||
Exact match “ComNet Communications is a national network infrastructure integrator delivering large-scale, mission-critical deployments across the United States.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 324 contacts → | ||||
Exact match “Headquartered in Nashville, TN, with branches throughout the Southeastern United States, ADS Security, a Vector Security company, is the 20th largest electronic security company…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 310 contacts → | ||||
Exact match “As a premier technology solution provider, we design, build, and maintain best-of-breed systems, including networks, security, data center, wireless, cloud, audiovisual, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 302 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 275 contacts → | ||||
Exact match “Welcome to Doyle Security Services (DSS) where a team of responsive security professionals stands ready to meet your needs in this ever-changing business environment.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 263 contacts → | ||||
Exact match “Northland Controls designs, installs, manages and harmonizes physical security systems across the globe with unparalleled services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “security infrastructure contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 3,747 security infrastructure contractors based in the United States
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Security infrastructure contractors based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,747 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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
- Company records associated with the United States whose business descriptions match “security infrastructure contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 20,668 professional contacts with verified work emails across the full matched dataset. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Security infrastructure contractors by metro
- Security infrastructure contractors in New York77
- Security infrastructure contractors in Houston64
- Security infrastructure contractors in Dallas50
- Security infrastructure contractors in Miami49
- Security infrastructure contractors in Los Angeles44
- Security infrastructure contractors in Atlanta32
- Security infrastructure contractors in Austin29
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security infrastructure contractors are there based in the United States?
RevenueBase identified 3,747 company matches for security infrastructure contractors associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Convergint tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most security infrastructure contractors?
New York leads with 77 company records, followed by Houston (64) and Dallas (50).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 20,668 professional contacts with verified work emails tracked across these 3,747 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,747 security infrastructure contractors based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Security infrastructure contractors by geography
- Security infrastructure contractors based in Melbourne, Australia
- Security infrastructure contractors based in Sydney, Australia
- Security infrastructure contractors based in Rio De Janeiro, Brazil
- Security infrastructure contractors based in Sao Paulo, Brazil
- Security infrastructure contractors based in Calgary, Canada
- Security infrastructure contractors based in Montreal, Canada
- Security infrastructure contractors based in Toronto, Canada
- Security infrastructure contractors based in Paris, France
- Security infrastructure contractors based in Bangalore, India
- Security infrastructure contractors based in Mumbai, India
- Security infrastructure contractors based in Pune, India
- Security infrastructure contractors based in Auckland, New Zealand
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security infrastructure contractors based in Melbourne, Australia
- Security infrastructure contractors based in Sydney, Australia
- Security infrastructure contractors based in Rio De Janeiro, Brazil
- Security infrastructure contractors based in Sao Paulo, Brazil
- Security infrastructure contractors based in Calgary, Canada
- Security infrastructure contractors based in Montreal, Canada
Company intelligence · public preview
Top 25 security infrastructure contractors based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 3,747 matching company records for security infrastructure contractors based in the United States, with 80,564 tracked contacts and 20,668 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 security infrastructure contractors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Convergintconvergint.comHQ: Hoffman Estates, IL, United StatesReported employees: 10001+ | Hoffman Estates, IL, United States | 10001+ | Exact match | 5,707 contacts → |
“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Unemployedexcelsiordefense.com HQ: St. Petersburg, FL, United StatesReported employees: Not recorded | St. Petersburg, FL, United States | Not recorded | Exact match | 4,038 contacts → |
“Excelsior Defense is a security and investigations company based out of St.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  U.S. Security Associates, INCussecurityassociates.comHQ: Roswell, GA, United StatesReported employees: 10001+ | Roswell, GA, United States | 10001+ | Exact match | 3,592 contacts → |
“U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Automated Systems Design, INCasd-usa.comHQ: Alpharetta, GA, United StatesReported employees: Not recorded | Alpharetta, GA, United States | Not recorded | Exact match | 2,678 contacts → |
“Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Everoneveronsolutions.comHQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 2,045 contacts → |
“Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Paragon Systems INCparasys.comHQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,949 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Protection 1 Security Solutionsprotection1.comHQ: Romeoville, IL, United StatesReported employees: 1,001-5,000 | Romeoville, IL, United States | 1,001-5,000 | Exact match | 1,406 contacts → |
“As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Vector Securityvectorsecurity.comHQ: Warrendale, PA, United StatesReported employees: 1,001-5,000 | Warrendale, PA, United States | 1,001-5,000 | Exact match | 1,287 contacts → |
“Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Titan Security Grouptitan-security.comHQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 1,138 contacts → |
“At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  PER MAR Security Servicespermarsecurity.comHQ: Davenport, IA, United StatesReported employees: 1,001-5,000 | Davenport, IA, United States | 1,001-5,000 | Exact match | 1,120 contacts → |
“Per Mar Security Services is the largest full-service security solutions provider in the Midwest.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,118 contacts → |
“Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Security 101security101.comHQ: West Palm Beach, FL, United StatesReported employees: 501-1,000 | West Palm Beach, FL, United States | 501-1,000 | Exact match | 849 contacts → |
“Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Securitas Electronic Security, INCsecuritases.comHQ: Uniontown, OH, United StatesReported employees: 10001+ | Uniontown, OH, United States | 10001+ | Exact match | 839 contacts → |
“Securitas knows Security.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  ADT Commercialadt.comHQ: Boca Raton, FL, United StatesReported employees: Not recorded | Boca Raton, FL, United States | Not recorded | Exact match | 799 contacts → |
“ADT Commercial, LLC was acquired by GTCR and is now Everon, LLC.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Ford Audio-Videofordav.comHQ: Oklahoma City, OK, United StatesReported employees: 501-1,000 | Oklahoma City, OK, United States | 501-1,000 | Exact match | 564 contacts → |
“Ford AV designs, installs, and services professional and commercial sound, audio-video, network infrastructure, and security surveillance systems for organizations including…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  ITIititech.bizHQ: Bluffton, IN, United StatesReported employees: Not recorded | Bluffton, IN, United States | Not recorded | Exact match | 545 contacts → |
“At Indiana Technical Installations we provide IT Services/Networking, Home & Business Security/Surveillance Services, Custom Audio/Video and more.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Napco Security Technologiesnapcosecurity.comHQ: Amityville, NY, United StatesReported employees: 501-1,000 | Amityville, NY, United States | 501-1,000 | Exact match | 427 contacts → |
“NAPCO Security Technologies (NASDAQ: NSSC) is one of the world's leading manufacturers of technologically advanced electronic security equipment including intrusion and fire alarm…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Tech Electronicstechelectronics.comHQ: St. Louis, MO, United StatesReported employees: 201-500 | St. Louis, MO, United States | 201-500 | Exact match | 406 contacts → |
“Since we opened our doors in 1963, relationships have been are our strength by putting people before products.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Guardian Alarmguardianalarm.comHQ: Southfield, MI, United StatesReported employees: 501-1,000 | Southfield, MI, United States | 501-1,000 | Exact match | 389 contacts → |
“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Comnet Communicationscomnetcomm.comHQ: Bethel, CT, United StatesReported employees: 201-500 | Bethel, CT, United States | 201-500 | Exact match | 343 contacts → |
“ComNet Communications is a national network infrastructure integrator delivering large-scale, mission-critical deployments across the United States.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  ADS Securityadssecurity.comHQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 324 contacts → |
“Headquartered in Nashville, TN, with branches throughout the Southeastern United States, ADS Security, a Vector Security company, is the 20th largest electronic security company…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Vectorusavectorusa.comHQ: Torrance, CA, United StatesReported employees: 201-500 | Torrance, CA, United States | 201-500 | Exact match | 310 contacts → |
“As a premier technology solution provider, we design, build, and maintain best-of-breed systems, including networks, security, data center, wireless, cloud, audiovisual, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  AFA Protective Systems, INCafap.comHQ: Syosset, NY, United StatesReported employees: 201-500 | Syosset, NY, United States | 201-500 | Exact match | 302 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 |  Doyle Security Services, Inc. DSSdoylesecurityservices.comHQ: Rockville Centre, NY, United StatesReported employees: 1,001-5,000 | Rockville Centre, NY, United States | 1,001-5,000 | Exact match | 275 contacts → |
“Welcome to Doyle Security Services (DSS) where a team of responsive security professionals stands ready to meet your needs in this ever-changing business environment.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Northland Controlsnorthlandcontrols.comHQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 263 contacts → |
“Northland Controls designs, installs, manages and harmonizes physical security systems across the globe with unparalleled services.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,747 company matches
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Security infrastructure contractors: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,742 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,747 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security infrastructure contractors by metro
- Security infrastructure contractors in New York77
- Security infrastructure contractors in Houston64
- Security infrastructure contractors in Dallas50
- Security infrastructure contractors in Miami49
- Security infrastructure contractors in Los Angeles44
- Security infrastructure contractors in Atlanta32
- Security infrastructure contractors in Austin29
Questions about this company list
What does Exact match mean for security infrastructure contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security infrastructure contractors did RevenueBase find based in the United States?
The saved snapshot records 3,747 matching company records, 80,564 tracked contacts and 20,668 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security infrastructure contractors by geography
- Security infrastructure contractors based in Melbourne, Australia
- Security infrastructure contractors based in Sydney, Australia
- Security infrastructure contractors based in Rio De Janeiro, Brazil
- Security infrastructure contractors based in Sao Paulo, Brazil
- Security infrastructure contractors based in Calgary, Canada
- Security infrastructure contractors based in Montreal, Canada
- Security infrastructure contractors based in Toronto, Canada
- Security infrastructure contractors based in Paris, France
- Security infrastructure contractors based in Bangalore, India
- Security infrastructure contractors based in Mumbai, India
- Security infrastructure contractors based in Pune, India
- Security infrastructure contractors based in Auckland, New Zealand
Cite this list
RevenueBase Data Team. Top 25 security infrastructure contractors based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/security-infrastructure-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security infrastructure contractors based in Melbourne, Australia
- Security infrastructure contractors based in Sydney, Australia
- Security infrastructure contractors based in Rio De Janeiro, Brazil
- Security infrastructure contractors based in Sao Paulo, Brazil
- Security infrastructure contractors based in Calgary, Canada
- Security infrastructure contractors based in Montreal, Canada
Company intelligence · public preview
Top 25 security infrastructure contractors based in the United States
RevenueBase records 3,747 matching company records for security infrastructure contractors based in the United States, with 80,564 tracked contacts and 20,668 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 security infrastructure contractors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Convergintconvergint.com HQ: Hoffman Estates, IL, United StatesReported employees: 10001+ | Hoffman Estates, IL, United States | 10001+ | Exact match | 5,707 contacts → |
“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Unemployedexcelsiordefense.com HQ: St. Petersburg, FL, United StatesReported employees: Not recorded | St. Petersburg, FL, United States | Not recorded | Exact match | 4,038 contacts → |
“Excelsior Defense is a security and investigations company based out of St.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | U.S. Security Associates, INCussecurityassociates.com HQ: Roswell, GA, United StatesReported employees: 10001+ | Roswell, GA, United States | 10001+ | Exact match | 3,592 contacts → |
“U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Automated Systems Design, INCasd-usa.com HQ: Alpharetta, GA, United StatesReported employees: Not recorded | Alpharetta, GA, United States | Not recorded | Exact match | 2,678 contacts → |
“Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Everoneveronsolutions.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 2,045 contacts → |
“Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Paragon Systems INCparasys.com HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,949 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Protection 1 Security Solutionsprotection1.com HQ: Romeoville, IL, United StatesReported employees: 1,001-5,000 | Romeoville, IL, United States | 1,001-5,000 | Exact match | 1,406 contacts → |
“As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Vector Securityvectorsecurity.com HQ: Warrendale, PA, United StatesReported employees: 1,001-5,000 | Warrendale, PA, United States | 1,001-5,000 | Exact match | 1,287 contacts → |
“Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Titan Security Grouptitan-security.com HQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 1,138 contacts → |
“At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | PER MAR Security Servicespermarsecurity.com HQ: Davenport, IA, United StatesReported employees: 1,001-5,000 | Davenport, IA, United States | 1,001-5,000 | Exact match | 1,120 contacts → |
“Per Mar Security Services is the largest full-service security solutions provider in the Midwest.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,118 contacts → |
“Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Security 101security101.com HQ: West Palm Beach, FL, United StatesReported employees: 501-1,000 | West Palm Beach, FL, United States | 501-1,000 | Exact match | 849 contacts → |
“Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Securitas Electronic Security, INCsecuritases.com HQ: Uniontown, OH, United StatesReported employees: 10001+ | Uniontown, OH, United States | 10001+ | Exact match | 839 contacts → |
“Securitas knows Security.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ADT Commercialadt.com HQ: Boca Raton, FL, United StatesReported employees: Not recorded | Boca Raton, FL, United States | Not recorded | Exact match | 799 contacts → |
“ADT Commercial, LLC was acquired by GTCR and is now Everon, LLC.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ford Audio-Videofordav.com HQ: Oklahoma City, OK, United StatesReported employees: 501-1,000 | Oklahoma City, OK, United States | 501-1,000 | Exact match | 564 contacts → |
“Ford AV designs, installs, and services professional and commercial sound, audio-video, network infrastructure, and security surveillance systems for organizations including…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | ITIititech.biz HQ: Bluffton, IN, United StatesReported employees: Not recorded | Bluffton, IN, United States | Not recorded | Exact match | 545 contacts → |
“At Indiana Technical Installations we provide IT Services/Networking, Home & Business Security/Surveillance Services, Custom Audio/Video and more.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Napco Security Technologiesnapcosecurity.com HQ: Amityville, NY, United StatesReported employees: 501-1,000 | Amityville, NY, United States | 501-1,000 | Exact match | 427 contacts → |
“NAPCO Security Technologies (NASDAQ: NSSC) is one of the world's leading manufacturers of technologically advanced electronic security equipment including intrusion and fire alarm…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Tech Electronicstechelectronics.com HQ: St. Louis, MO, United StatesReported employees: 201-500 | St. Louis, MO, United States | 201-500 | Exact match | 406 contacts → |
“Since we opened our doors in 1963, relationships have been are our strength by putting people before products.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Guardian Alarmguardianalarm.com HQ: Southfield, MI, United StatesReported employees: 501-1,000 | Southfield, MI, United States | 501-1,000 | Exact match | 389 contacts → |
“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Comnet Communicationscomnetcomm.com HQ: Bethel, CT, United StatesReported employees: 201-500 | Bethel, CT, United States | 201-500 | Exact match | 343 contacts → |
“ComNet Communications is a national network infrastructure integrator delivering large-scale, mission-critical deployments across the United States.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | ADS Securityadssecurity.com HQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 324 contacts → |
“Headquartered in Nashville, TN, with branches throughout the Southeastern United States, ADS Security, a Vector Security company, is the 20th largest electronic security company…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Vectorusavectorusa.com HQ: Torrance, CA, United StatesReported employees: 201-500 | Torrance, CA, United States | 201-500 | Exact match | 310 contacts → |
“As a premier technology solution provider, we design, build, and maintain best-of-breed systems, including networks, security, data center, wireless, cloud, audiovisual, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | AFA Protective Systems, INCafap.com HQ: Syosset, NY, United StatesReported employees: 201-500 | Syosset, NY, United States | 201-500 | Exact match | 302 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Doyle Security Services, Inc. DSSdoylesecurityservices.com HQ: Rockville Centre, NY, United StatesReported employees: 1,001-5,000 | Rockville Centre, NY, United States | 1,001-5,000 | Exact match | 275 contacts → |
“Welcome to Doyle Security Services (DSS) where a team of responsive security professionals stands ready to meet your needs in this ever-changing business environment.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Northland Controlsnorthlandcontrols.com HQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 263 contacts → |
“Northland Controls designs, installs, manages and harmonizes physical security systems across the globe with unparalleled services.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,747 company matches
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Security infrastructure contractors: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,742 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,747 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security infrastructure contractors by metro
- Security infrastructure contractors in New York77
- Security infrastructure contractors in Houston64
- Security infrastructure contractors in Dallas50
- Security infrastructure contractors in Miami49
- Security infrastructure contractors in Los Angeles44
- Security infrastructure contractors in Atlanta32
- Security infrastructure contractors in Austin29
Questions about this company list
What does Exact match mean for security infrastructure contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security infrastructure contractors did RevenueBase find based in the United States?
The saved snapshot records 3,747 matching company records, 80,564 tracked contacts and 20,668 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security infrastructure contractors by geography
- Security infrastructure contractors based in Melbourne, Australia
- Security infrastructure contractors based in Sydney, Australia
- Security infrastructure contractors based in Rio De Janeiro, Brazil
- Security infrastructure contractors based in Sao Paulo, Brazil
- Security infrastructure contractors based in Calgary, Canada
- Security infrastructure contractors based in Montreal, Canada
- Security infrastructure contractors based in Toronto, Canada
- Security infrastructure contractors based in Paris, France
- Security infrastructure contractors based in Bangalore, India
- Security infrastructure contractors based in Mumbai, India
- Security infrastructure contractors based in Pune, India
- Security infrastructure contractors based in Auckland, New Zealand
Cite this list
RevenueBase Data Team. Top 25 security infrastructure contractors based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/security-infrastructure-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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