IronNet is owned by C5 Capital, which acquired it in February 2024.

Where is IronNet headquartered?

IronNet is headquartered in Washington, United States.

Who is the CEO of IronNet?

Arno Robbertse is the CEO of IronNet.

General (Ret.) Keith Alexander is a founder of IronNet, founded in 2014.

Who are IronNet's competitors?

NETSCOUT, Packet Forensics, and MixMode are among the closest in Network Security. The full competitive set, with overlap scoring, is in the platform.

What products does IronNet sell?

IronNet sells IronNet IronRadar and IronNet IronDefense.

IronNet

Network SecurityWashington, United Statesfounded 2014acquired by C5 Capitalironnet.com ↗

IronNet is a cybersecurity company specializing in Network Security, founded in 2014 and headquartered in Washington, United States. It has raised $110.5M in equity across 2 priced rounds, employs about 53 people, and was acquired by C5 Capital in 2024.

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updated Oct 11, 2026

Latest IronNet news and company activity

What IronNet did, dated — selected moves from the record, one per kind, newest first.

Feb 2026AcquisitionITC Secure and IronNet Unite to Form Collective Defence, a New Force in Critical Infrastructure Protection Against Hybrid Warfare
May 2021PartnershipCollective Defence comes to the UK: ITC Secure unveils partnership with IronNet Cybersecurity
Mar 2021Feature launchIronNet Cybersecurity Expands Reach of Collective Defense Platform with New Integrations

13 events tracked since Apr 2018 · selected events shownUnlock the complete IronNet timeline

IronNet products

IronNet funding

IronNet has raised $110.5M in priced equity. Its most recent round was a Series B in May 2018. It has 2 funding rounds on record: Series A and Series B. 4 investors are on record, including C5 Capital and Forgepoint Capital.

Equity raised: $110.5M2 priced rounds
Last round: Series BMay 2018

View the complete funding history

IronNet employees and hiring

As of September 2026, IronNet has about 53 employees.

Employees: 53
30-day change: 0%
Open roles: 0

See hiring trends

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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security
Competitorsfull set, overlap scored
Leadershipevery exec, with roles
Customersnamed publicly, with sources
Reviews & newssentiment, coverage, cadence

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Funding, round by round, with the investors
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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in Network Security

Common questions about IronNet.

How much funding has IronNet raised?: IronNet has raised $110.5M in priced equity. Its most recent round was a Series B in May 2018. It has 2 funding rounds on record: Series A and Series B. 4 investors are on record, including C5 Capital and Forgepoint Capital.
How many people work at IronNet?: As of September 2026, IronNet has about 53 employees.
Who owns IronNet?: IronNet is owned by C5 Capital, which acquired it in February 2024.
Where is IronNet headquartered?: IronNet is headquartered in Washington, United States.
Who is the CEO of IronNet?: Arno Robbertse is the CEO of IronNet.
Who founded IronNet?: General (Ret.) Keith Alexander is a founder of IronNet, founded in 2014.
Who are IronNet's competitors?: NETSCOUT, Packet Forensics, and MixMode are among the closest in Network Security. The full competitive set, with overlap scoring, is in the platform.
What does IronNet do?: IronNet is a cybersecurity company specializing in Network Security, founded in 2014 and headquartered in Washington, United States.