Cybersecurity Startup Investors Pulled Back In Q3

Cybersecurity Startup Investors Pulled Back! In Q3

In total, investors put just over $3.3 billion globally into seed- through growth-stage rounds for cybersecurity-focused companies, per Crunchbase data.

That’s about a third lower than the prior quarter. After a lively first half of the year for cybersecurity startup funding, investors pulled back some in the third quarter.

Deal counts also declined sequentially in Q3, but still exceeded year-ago totals. As usual, much of the quarter’s fundraising tally came from a few big rounds.

For Q3, the largest round went to Quantinuum, a quantum computing unicorn that isn’t a pure-play cybersecurity company but does cite encryption and data protection among the core use cases for its technology.

The Broomfield, Colorado-based company, which was spun out of Honeywell, closed a $600 million Series B in August led by Nvidia’s venture arm.

Investors pulled back some in the third quarter, a robust period for dealmaking, but still about a third above year-ago levels.

Author's summary: Cybersecurity startup funding declined in Q3.

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Crunchbase News Crunchbase News — 2025-10-17

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