Company lists · Data verified August 2026

Top 25 Bank security services based in the United States

Name: Bank security services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 341 companies tracked

There are 341 bank security services headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 17,275 professional contacts across them, including 2,517 with verified work emails and 4,255 with mobile numbers. New York is the largest hub.

This list covers bank security services headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

341Companies

17,275Contacts tracked

2,517Verified emails

4,255Mobile numbers

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The 25 largest bank security services based in the United States

Ranked by team size

Top 25 of 341 bank security services based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Loomis	Houston, TX	10001+	5,892	868
2	Unemployed	St. Petersburg, FL	n/a	4,055	2
3	Titan Security Group	Chicago, IL	1,001-5,000	1,133	219
4	Mainstreet Bank	Middleburg, VA	51-200	364	107
5	Cook Solutions Group	Corona, CA	201-500	311	183
6	Doyle Security Services, Inc. DSS	Plantation, FL	1,001-5,000	273	40
7	American Momentum Bank	Orlando, FL	201-500	263	33
8	Wittenbach	Hunt Valley, MD	201-500	247	111
9	Alarm Detection Systems	Louisville, CO	201-500	225	81
10	Central Defense Security, LLC	Nashville, TN	501-1,000	208	5
11	CBSI	Cumming, GA	51-200	186	27
12	Aegis Protective Services	Akron, OH	201-500	163	31
13	Federal Protection, INC	Springfield, MO	201-500	142	75
14	Dunbar	Vienna, VA	201-500	121	22
15	Mountain Alarm	Nampa, ID	201-500	107	37
16	Universal Atlantic Systems	Paoli, PA	51-200	103	54
17	Premier Security Solutions	Burton, MI	1,001-5,000	95	11
18	Bass Security Services	Bedford Heights, OH	51-200	83	32
19	Peak Alarm Company. INC	St George, UT	201-500	73	10
20	Am-Gard, INC	Pittsburgh, PA	201-500	73	5
21	Fleenor Security Systems	Johnson City, TN	51-200	61	30
22	Andover Bank	Jefferson, OH	51-200	54	27
23	STS Group INC	Madison, AL	51-200	54	24
24	Safeguard Security & Surveillance, INC	Windsor Locks, CT	51-200	48	3
25	KR Contracting, INC	Springfield, VA	501-1,000	46	19

Showing 25 of 341 bank security services based in the United States

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Bank security services based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 9 HQs

4,255Contacts with mobile numbers

15Emails re-verified in last 30 days

Companies by employee count

1-10

110

11-50

134

51-200

201-500

501-1,000

1,001-5,000

10001+

Bank security services by metro

Metro	Companies
Bank security services in New York	9
Bank security services in Chicago	8
Bank security services in Los Angeles	6
Bank security services in Salt Lake City	4
Bank security services in Orlando	4
Bank security services in Phoenix	4
Bank security services in Clinton	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “bank security services”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 15 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many bank security services are there based in the United States?

There are 341 bank security services headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Loomis, headquartered in Houston, tops this list with the largest team on record.

Which city has the most bank security services?

New York leads with 9 headquartered companies, followed by Chicago (8) and Los Angeles (6).

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 2,517 verified decision-maker contacts tracked across these 341 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.