Company lists · Data verified August 2026
Top 20 Dock security companies based in the United States
There are 71 dock security companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 1,053 professional contacts across them, including 116 with verified work emails and 311 with mobile numbers. Miami is the largest hub.
This list covers dock security companies 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.
The 20 largest dock security companies based in the United States
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 |  American Guard Services, INC | 36 |
| 2 |  Terminal Security Solutions, INC | 25 |
| 3 |  Danner's Incorporated | 21 |
| 4 | Sec-Ops, INC | 7 |
| 5 |  meridian.us | 3 |
| 6 |  JFA Security & Consulting Services, INC | 1 |
| 7 | Seaguard Security | 1 |
| 8 |  Personal Protective Services INC | 1 |
| 9 |  EZ Docks Marine Construction | 2 |
| 10 | Tower Security Company LLC | 2 |
| 11 |  O.E. Durant | 2 |
| 12 |  DM Consulting | 1 |
| 13 |  Dock & Marina Services, INC | 3 |
| 14 |  Safeguard America, Inc. DBA Americas Transportation | 1 |
| 15 |  Navigo Maritime Solutions Vessel Agency | 2 |
| 16 |  Rainmaker LLC | 1 |
| 17 | Mariner Dock And Seawall | 1 |
| 18 |  IMI Security | 1 |
| 19 |  Premier Vessel Services | 1 |
| 20 | Swift Slip Dock & Pier Builders, INC | 1 |
Showing 20 of 71 dock security companies based in the United States
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Dock security companies based in the United States at a glance
As of Aug 28, 2026Companies by employee count
Dock security companies by metro
| Metro | Companies |
|---|---|
| Dock security companies in Miami | 7 |
| Dock security companies in Belford | 3 |
| Dock security companies in Houston | 3 |
| Dock security companies in Middletown | 2 |
| Dock security companies in New Orleans | 2 |
| Dock security companies in San Diego | 2 |
| Dock security companies in New Haven | 2 |
| Dock security companies in Santee | 1 |
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 “dock security companies”, 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; 0 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 dock security companies are there based in the United States?
There are 71 dock security companies headquartered in the United States as of August 2026 (RevenueBase).
What is the largest company on this list?
American Guard Services, INC, headquartered in Gardena, tops this list with the largest team on record.
Which city has the most dock security companies?
Miami leads with 7 headquartered companies, followed by Belford (3) and Houston (3).
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 116 verified decision-maker contacts tracked across these 71 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.
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