Company lists · Data verified August 2026
Top 11 Antivirus software companies based in the United States
There are 38 antivirus software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 823 professional contacts across them, including 244 with verified work emails and 198 with mobile numbers. New York is the largest hub.
This list covers antivirus software 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 11 largest antivirus software companies based in the United States
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 |  K7 Computing | 57 |
| 2 |  Eset North America | 123 |
| 3 |  PC Matic | 39 |
| 4 |  Threattrack Security | 10 |
| 5 |  Intego | 3 |
| 6 |  Total Defense | 4 |
| 7 |  Invincea, INC | 1 |
| 8 |  Malwarefox | 2 |
| 9 |  Cybersoft Operating Corporation | 2 |
| 10 | Init Consulting | 2 |
| 11 |  Shieldly | 1 |
Showing 11 of 38 antivirus software companies based in the United States
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Antivirus software companies based in the United States at a glance
As of Aug 28, 2026Companies by employee count
Antivirus software companies by metro
| Metro | Companies |
|---|---|
| Antivirus software companies in New York | 3 |
| Antivirus software companies in San Diego | 2 |
| Antivirus software companies in Austin | 2 |
| Antivirus software companies in Sioux City | 2 |
| Antivirus software companies in Clearwater | 1 |
| Antivirus software companies in Reno | 1 |
| Antivirus software companies in Fayetteville. | 1 |
| Antivirus software companies in Sarasota | 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 “antivirus software 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; 3 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 antivirus software companies are there based in the United States?
There are 38 antivirus software companies headquartered in the United States as of August 2026 (RevenueBase).
What is the largest company on this list?
K7 Computing, headquartered in Cerritos, tops this list with the largest team on record.
Which city has the most antivirus software companies?
New York leads with 3 headquartered companies, followed by San Diego (2) and Austin (2).
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 244 verified decision-maker contacts tracked across these 38 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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