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Companies using Zeek

As of 14 October 2026, Firmable tracks 686 companies across 13 countries running Zeek. See who they are, and who to call.

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Companies using Zeek

Showing 5 of 686 companies

Corelight

corelight.com · Cybersecurity · 251–500 employees

Last seen 6 Sep 2026 The most recent date Firmable detected Zeek at this company.

Decision makers · 158 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

CTO MobileEmail
Controller MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

Hired as Chief Customer Officer · 27 Jul 2026

Corelight launched Agent Builder Library and Natural Language Query on Sep 15th '26. · 15 Sep 2026

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Roundel

roundel.com · Online and digital media · 251–500 employees

Last seen 2 Aug 2026 The most recent date Firmable detected Zeek at this company.

Decision makers · 121 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Director GTM Solutions MobileEmail
Director Roundel Partner Solutions New and Emerging Brands Food and Beverage MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

Hiring: Specialty Sales Team Leader · 9 Oct 2026

Roundel has revenue of $279M. · 19 Aug 2026

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Veritas Capital

veritascapital.com · Accounting and auditing services · 51–250 employees

Last seen 4 Sep 2026 The most recent date Firmable detected Zeek at this company.

Decision makers · 76 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Vice President, Capital Formation Analytics MobileEmail
Private Equity Vice President MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

New CISO joined · 30 Sep 2026

New CISO appointed · 30 Sep 2026

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SMS

sms.com · IT consulting and support services · 251–500 employees

Last seen 25 Jul 2026 The most recent date Firmable detected Zeek at this company.

Decision makers · 73 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

CFO MobileEmail
Payroll Manager MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

Hiring: Sr. Pricing Manager · 29 Sep 2026

SMS Data Products Group helped a SaaS client achieve FedRAMP certification leveraging decades of government compliance experience. · 1 Oct 2026

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Fluidstack

fluidstack.io · Hosting and cloud infrastructure · 251–500 employees

Last seen 5 Sep 2026 The most recent date Firmable detected Zeek at this company.

Decision makers · 134 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

VP, Accounting and Finance MobileEmail
Senior Director of Technical Accounting and Financial Reporting MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

Fluidstack invested into assets: AI data center in the amount of $4B in Cameron, Texas, United States, Northern America, Americas on Sep 11th '26. · 11 Sep 2026

Fluidstack expands facilities to New York, New York, United States, Northern America, Americas. · 11 Sep 2026

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Who uses Zeek

A breakdown of the 686 companies running Zeek.

Top industries

Information technology and services348
Professional and business services73
Financial services48
Education and training34
Industrial and manufacturing33
Government and public services26
Construction and building25
Media and telecommunications19

No industry recorded: 16

Company size

1–1041 (6%)
11–5078 (12%)
51–250167 (26%)
251–50073 (11%)
501–1,00040 (6%)
1,001–5,00094 (15%)
5,001–10,00048 (7%)
10,001+106 (16%)

Share of companies with a recorded size, by employees.

No size recorded: 39

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Frequently asked questions

About the Zeek data on this page.

How many companies use Zeek?

Firmable holds confirmed Zeek detections for 686 distinct companies, 145 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.

Which companies use Zeek?

Corelight, Roundel and Fluidstack are among the most prominent in the current set.

What industries use Zeek?

Information technology and services, professional and business services and financial services lead the set, across 18 industries in total.

What size companies use Zeek?

Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.

Where are Zeek users based?

The United States, Canada, Australia and Indonesia account for most detections, across 13 countries.

How current is this data?

145 companies were confirmed in the last 90 days. Last detection 10 October 2026.

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