Company lists · Data refreshed September 2026
Top 8 Security contractors based in Sacramento, United States
RevenueBase identified 30 security contractors headquartered in Sacramento, United States as of September 2026 and tracks 337 professional contacts across them, including 23 with verified work emails. New York is the largest hub.
This list covers security contractors headquartered in Sacramento, 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 21, 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 8 largest security contractors based in Sacramento, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 48 contacts → | ||||
Indirect evidence “Guardian Protection Force is based in the Northern California & greater Sacramento area, however we serve clients wherever duty calls.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 24 contacts → | ||||
Partial evidence “Crime Alert Security has been providing complete security services for homes and businesses since 1994.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 17 contacts → | ||||
Partial evidence “We are a fully licensed and insured private security company founded and operated by leadership with over 30 years of executive law enforcement and security experience.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 10 contacts → | ||||
Indirect evidence “Join forces with us to enjoy the peace of mind that comes with partnering with a reliable and trustworthy team.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 10 contacts → | ||||
Partial evidence “MSC Integration is a leading security service provider in the Greater Sacramento area.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 6 contacts → | ||||
Partial evidence “CCAT Security is a Bay Area, California-based private security corporation that focuses on providing an effective solution to your security needs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5 contacts → | ||||
Partial evidence “Armor Bearer Protective Services is a minority-owned, concierge-level firm that designs, develops, and delivers custom security strategies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2 contacts → | ||||
Partial evidence “he vision of Signal 88 Security of Sacramento is to provide a full suite of world-class and industry-leading security services for residential, commercial, retail and…” Source: RevenueBase Database · checked Sep 21, 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 contractors. 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 contractors.
- Partial evidence
- Its own public description names part of security contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security contractors. 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 8 of 30 security contractors based in Sacramento, United States
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Security contractors based in Sacramento, United States at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Sacramento, so it is reported there. Company counts and contact totals on this page are exact for Sacramento, over 30 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 contractors, 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 Sacramento, United States whose own description of what they do matches “security contractors”. 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 contractors), 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 contractors, and records with no verified work email. Companies headquartered outside Sacramento 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, 23 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 21, 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 contractors by metro in the United States
- Security contractors in New York163
- Security contractors in Los Angeles142
- Security contractors in Houston128
- Security contractors in Miami99
- Security contractors in Chicago73
- Security contractors in Atlanta66
- Security contractors in Dallas66
- Security contractors in Austin58
- Security contractors in Phoenix54
- Security contractors in Las Vegas52
- Security contractors in Orlando42
- Security contractors in Denver41
- Security contractors in Tampa41
- Security contractors in San Diego37
- Security contractors in San Antonio36
- Security contractors in Baltimore32
- Security contractors in Washington32
- Security contractors in Charlotte30
- Security contractors in Sacramento30
- Security contractors in San Francisco29
- Security contractors in Nashville28
- Security contractors in San Jose28
- Security contractors in Seattle27
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 contractors, 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 contractors are there based in Sacramento, United States?
RevenueBase identified 30 security contractors headquartered in Sacramento, 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?
Guardian Protection Force INC, headquartered in Sacramento, tops this list with the largest team on record.
Which city has the most security contractors?
New York leads with 163 headquartered companies, followed by Los Angeles (142) and Houston (128).
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 23 verified decision-maker contacts tracked across these 30 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 21, 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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