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Tac Security

TAC Security is a publicly listed global cybersecurity company specializing in vulnerability management and serving clients across 100 countries.

Data Security Software Products
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Headquarters
San Francisco, California, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range
51 to 200Source: RevenueBaseRetrieved October 13, 2026
Founded
2013Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
303 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Tac Security do?

Its flagship product, ESOF, covers cyber scoring, cyber risk quantification, and AI-enabled vulnerability assessment and penetration testing.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

Who it serves

TAC Security serves Fortune 500 companies, startups, and governments globally.

What the business offers

Services & capabilities.

Vulnerability management

TAC Security specializes in vulnerability management.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

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Embeddable award for your website

BADGE PREVIEWTac Security listed #1 on Application security consultancies, September 26, 2026Open the published source list.
Tac Security

#1 Application security consultancies

Snapshot: September 26, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated August 30, 2026, September 2, 2026, September 5, 2026, September 7, 2026, September 9, 2026, September 11, 2026, September 12, 2026, September 13, 2026, September 15, 2026, September 18, 2026, September 19, 2026, September 20, 2026, September 21, 2026, September 23, 2026, September 26, 2026, September 27, 2026, September 28, 2026, September 30, 2026 and October 10, 2026. How the company lists are built.

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