$50M
Harmonic Security
Harmonic Security raises $50M to govern how employees use AI tools
Cybersecurity Startup Funding Rounds
New startup funding rounds from SEC Form D filings and tech news. 25 raises tracked, updated Oct 15, 2026.
View all 2,236AI & Data 200AI agents & assistants 30AI infrastructure & models 11Applied AI & ML 191Data & analytics 10Software & Dev 1,130Cloud & infrastructure 25Productivity & automation 9Sales & marketing 5HR & recruiting 8Legal, compliance & gov 9Fintech 168Payments 10Banking & lending 80Investing & wealth 6Insurance 53Crypto & web3 6Accounting & finance ops 7Health & Bio 558Digital health & care 15Biotech & pharma 296Medical devices & diagnostics 28Wellness & mental health 15Deep Tech & Industry 360Robotics & drones 38Manufacturing & chips 125Space, aviation & defense 26Climate & energy 117Logistics & supply chain 10Mobility & automotive 11Food & agriculture 35Real estate & construction 18IoT & telecom 13Consumer & Commerce 79E-commerce & retail 34Social & community 5Gaming 5Media & entertainment 13Education 9Travel & hospitality 8
$42MSeries A
Pluto Security
Pluto Security nabs $42M to help enterprises secure their AI agents
$1MDebt
$25MSeries A
Rein Security
Rein Security raises $25M to rein in insecure AI agents
$4.2MSeed
How A Magician’s Son
From Ballet To Breach Prevention: How A Magician’s Son Raised $4.2M In Seed Funding For His Cybersecurity Startup
€8.93M
Netsec
France- and Italy-based Netsec raises over €8.93 million to scale its AI-native solution for cybersecurity and IT
$40M
Hadrian
Hadrian raises $40M to tackle AI-driven cyber threats
$3MEquity
€4MPre-seed
Fleuret AI
French cybersecurity startup Fleuret AI raises €4 million to automate penetration testing with AI agents
$256MSeries B
Armadin
Armadin nabs $255.5M to detect vulnerabilities with AI agent swarms
$400KDebt
Fraud Protection Network
Form D filing: $400K sold of a $1M offering · 2 investors · amended filing
$2.65MEquity
Fraud Protection Network
Form D filing: $2.65M sold of a $6.4M offering · 6 investors · amended filing
$1.1MDebt
€8.5MSeries A
€535K
Sovera Security
Sovera Security secures €535K from EIFO to build sovereign AI cybersecurity
$35MSeries A
Baselayer
Exclusive: Can You Trust That AI Agent? Baselayer Raises $35M To Help Companies Decide
$1MDebt
$1MEquity
$5.97MEquity
$2.55MSAFE
Autonomous Cyber
Form D filing: $2.55M sold of a $6M offering · 5 investors
$4.5MEquity
$14.8MEquity
$7.5MEquity
$1.15MEquity
$5.23MDebt