Funding record · 2026 / 06

Nebulock raises $25M Series A for security operations
Announced 25 June 2026 · Recorded 8 September 2026 · Last verified 8 September 2026
Nebulock, a security operations company based in Boston, United States, raised $25M in a Series A announced on 25 June 2026, led by FirstMark, Bain Capital Ventures and Decibel Partners with two others. Its disclosed equity funding is now $33.5M across 2 rounds.
- Amount
- $25M
- Round
- Series A
- Announced
- 25 June 2026
- Lead investors
- FirstMark, Bain Capital Ventures, Decibel Partners, Zetta Venture Partners, Step Function
- Sources on record
- 1thesaasnews.com
From the source
Nebulock Raises $25 Million Series A to Expand AI-Native Enterprise Security Platform
Nebulock has raised $25 million in Series A funding led by FirstMark to accelerate development and expansion of its AI-native contextual security platform for enterprise threat hunting and proactive detection. The funding will support broader adoption of the hunt-first security platform and expansion to Fortune 500 customers.
thesaasnews.com · 26 June 2026 ↗The Mandos read
What the record says about Nebulock
- Momentum 69 / 100 · Steadylocked →
pillars in the platform
- 33 employees · up 25% last month · 8 open roleslocked →
history and breakdowns in the platform
- Exit Readiness: Lowlocked →
Tested against 751 past exits in the Mandos record: 43% sat in Watch or Elevated 2 years before. Companies in Elevated exited at 3.1× the record's rate.
- Buyers most often compare Nebulock with Akamailocked →
the full set in the platform
Funding history
Nebulock funding on record
Nebulock has raised $33.5M in priced equity. Its most recent round was a Series A in June 2026.
Latest round on record: Series A, Jun 2026.
Nebulock funding on the profile →In the platform
The round is the fact. The read is the product.
Every round, investor and correction for Nebulock, the competitors buyers weigh it against, hiring by department, and an alert when the next thing happens.
The same record answers in Claude, ChatGPT and Cursor through the Mandos MCP server.
The Mandos Brief
Cybersecurity funding, deals and moves, every Monday.
FAQ
Questions people ask
- How much did Nebulock raise in its Series A?
- Nebulock raised $25M in a Series A announced on 25 June 2026.
- Who invested in Nebulock's Series A?
- The round was led by FirstMark, Bain Capital Ventures, Decibel Partners, Zetta Venture Partners, Step Function.
- What does Nebulock do?
- Nebulock is a cybersecurity company specializing in Security Operations, founded in 2023 and headquartered in Boston, United States.












