How much has 7AI raised?

7AI raised a $130M Series A in December 2025, led by Index Ventures with Blackstone Innovations Investments. The company called it the largest Series A in cybersecurity history.

Nathan Burke, CMO at 7AI | Pipeline Issue 02

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This is my first magazine cover.

Nobody prints Pipeline, so @Alex Muresan made it anyway. Issue 02 puts 12 marketers building pipeline before the Series B on its covers. I'm on cover 02, for 7AI.

Thanks @Reach AI for sponsoring the issue.

With the stat

I made the cover of Pipeline.

Issue 02 is the Series A issue, with 12 marketing and growth leaders whose companies raised $564M between them. I'm on cover 02. It's about 7AI raising the biggest Series A in cybersecurity history, 302 days out of stealth.

Thanks to @Alex Muresan for making it and to @Reach AI for sponsoring it.

Change anything you like. It's your post. After you paste it, retype @Alex Muresan and @Reach AI and pick each one from the list LinkedIn shows, because pasted names don't turn into tags (annoying, I know).

By Alex Muresan · Published October 5th, 2026 · Updated October 26th, 2026

Who is Nathan Burke?

Nathan Burke is the CMO of 7AI. He joined from Nagomi Security, where he was also CMO. 7AI builds AI security agents that investigate alerts for enterprise security teams.

About Nathan Burke

Before Nagomi he was CMO at Axonius, which he marketed from stealth to $100M in ARR and a $3B valuation. 7AI is the second security company he has built pipeline for from the very start.

About 7AI

7AI builds AI security agents that investigate alerts for enterprise security teams. It is based in Boston. By December 2025 its agents had processed more than 2.5 million alerts and 650,000 investigations. That month, 302 days after leaving stealth, 7AI raised a $130M Series A led by Index Ventures with Blackstone Innovations Investments.

Why Nathan is on the cover

Nathan has done this before: at Axonius he went from stealth all the way to $100M in ARR. Now 7AI has raised a record Series A 302 days after it came out of stealth. He gets to do it again with a much bigger head start.

Questions about Nathan and 7AI

What does Nathan Burke do at 7AI?: Nathan Burke is the CMO of 7AI. He joined from Nagomi Security, where he was also CMO.
What does 7AI do?: 7AI builds AI security agents that investigate alerts for enterprise security teams.
How much has 7AI raised?: 7AI raised a $130M Series A in December 2025, led by Index Ventures with Blackstone Innovations Investments. The company called it the largest Series A in cybersecurity history.