cybersecdirectory

AI and LLM security acquisitions and funding

44 acquisitions of AI security companies since 2020 and 173 funding rounds since 2022 on record. The most active buyers are Palo Alto Networks (3), Check Point (3) and F5 (2). See the AI security companies in the directory.

44acquisitions
173funding rounds
$715mpaid in the 5 acquisitions with a disclosed price
$2.5bnraised in the 153 rounds with a disclosed size
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Showing 51 to 100 of 217

DateDealAmountSource
April 2026Palo Alto Networks acquired PortkeyOffers a gateway to protect and steer independent AI agentsUndisclosedReportvia SecurityWeek
April 2026Cisco acquired Galileo TechnologiesProvides tools to make AI systems trustworthy and observable in real timeUndisclosedReportvia SecurityWeek
March 2026CodeIntegrity raised a seed round$4.8mReportvia Security, Funded
March 2026Onyx Security raised a Series A roundInvestor Conviction VC$40mReportvia Security, Funded
March 2026JetStream Security raised a seed roundInvestor Redpoint$34mReportvia Security, Funded
March 2026Soxton acquired CipherGives live protection layers for AI applications run by agentsUndisclosedReportvia SecurityWeek
March 2026OpenAI acquired PromptfooA tool for judging and trialling large language models and AI agentsUndisclosedReportvia SecurityWeek
March 2026Fasoo acquired KonsilixProvides secure conversational AI platform and consulting services for enterprisesUndisclosedReportvia SecurityWeek
March 2026Databricks acquired AntimatterAuthentication and authorisation for AI agentsUndisclosedReportvia SecurityWeek
February 2026Trustwise AI raised funding$12.1mReportvia Security, Funded
February 2026Evoke Security raised a pre-seed roundInvestor Crosspoint Capital Partners$4mReportvia Security, Funded
February 2026Reco raised a Series B roundReco provides an AI agent security platform that maps, governs, and protects AI agents across enterprise applications.Investor Zeev Ventures$30mReportvia Security, Funded
February 2026Realm Labs raised a seed roundInvestor RSA Conference$5mReportvia Security, Funded
February 2026Opaque Systems raised a Series B roundProvides a trust layer that lets organisations run AI on sensitive data with hardware-enforced governance and verifiable proof.Investor Walden Catalyst$24mReportvia Security, Funded
February 2026Geordie AI raised a seed roundInvestor RSA Conference$5mReportvia Security, Funded
February 2026Varonis acquired AllTrue.aiBusiness manages confidence, danger and protection for artificial intelligence$150mReportvia SecurityWeek
February 2026Proofpoint acquired AcuvityAI security and governance company providing visibility and controls over AI useUndisclosedReportvia SecurityWeek
February 2026Check Point acquired CyataAids in making a full AI protection system betterUndisclosedReportvia SecurityWeek
January 2026Pallma AI raised a pre-seed roundInvestor Marathon Venture Capital$1.6mReportvia Security, Funded
January 2026Nenna AI raised a seed roundInvestors dfv Mediengruppe and IBB VenturesUndisclosedReportvia Security, Funded
January 2026WitnessAI raised fundingInvestor Sound Ventures$58mReportvia Security, Funded
January 2026LatticeFlow AI acquired AI SonarProvides an AI discovery platform that detects shadow AIUndisclosedReportvia SecurityWeek
December 2025Resemble AI raised fundingInvestor Berkeley Frontier Fund$13mReportvia Security, Funded
December 2025Lumia Security raised a seed roundInvestor Team8$18mReportvia Security, Funded
December 2025Helmet Security raised a seed roundInvestors SYN Ventures and WhiteRabbit Ventures$9mReportvia Security, Funded
December 2025Alinia AI raised a seed roundInvestor Mouro Capital$7.5mReportvia Security, Funded
December 2025Red Hat acquired Chatterbox LabsAI security and safety company offering guardrails and safety testingUndisclosedReportvia SecurityWeek
December 2025BigBear.ai acquired Ask SageGenerative AI platform for secure deployment in regulated environmentsUndisclosedReportvia SecurityWeek
November 2025vijil raised fundingInvestor Brightmind Partners$17mReportvia Security, Funded
November 2025Runlayer raised a seed roundInvestors Khosla Ventures and Felicis$11mReportvia Security, Funded
November 2025Liminal raised funding$12mReportvia Security, Funded
November 2025Portal26 raised a Series A roundInvestor Shasta Ventures$9mReportvia Security, Funded
November 2025DeepKeep received a grantInvestor European Innovation Council$2.9mReportvia Security, Funded
November 2025Zscaler acquired SPLXProvides AI security tools including asset discovery and automated red teamingUndisclosedReportvia SecurityWeek
October 2025Terra Security received non-equity supportInvestor Deloitte LaunchpadUndisclosedReport
October 2025Polygraf raised a seed roundInvestor Allegis Capital$9.5mReportvia Security, Funded
October 2025nexos.ai raised a Series A roundInvestors Evantic Capital and Index Ventures$34.8mReportvia Security, Funded
October 2025Resistant AI raised a Series B roundInvestor DTCP$25mReportvia Security, Funded
October 2025NROC Security raised a seed round$1.7mReportvia Security, Funded
October 2025Aurigin.ai received a grantUndisclosedReport
October 2025Arcjet raised a Series A roundArcjet provides runtime security for AI agents, enforcing policies at the action boundary.Investor Plural Platform$8.3mReportvia Security, Funded
October 2025SolidCore.ai raised a seed roundInvestor Runtime Ventures$4mReportvia Security, Funded
October 2025Skyld raised a seed roundInvestors Bloomhaus Ventures and Auriga Cyber Ventures$1.8mReportvia Security, Funded
October 2025RecordPoint acquired RedactiveMelbourne startup helping companies adopt AI securely, compliantly and at scaleUndisclosedReportvia SecurityWeek
September 2025Obot AI raised a seed roundInvestors Mayfield Fund and Nexus Venture Partners$35mReportvia Security, Funded
September 2025Terra Security raised a Series A roundInvestor Felicis$30mReportvia Security, Funded
September 2025Irregular raised a Series A roundInvestors Redpoint and Sequoia Capital$80mReportvia Security, Funded
September 2025Eve Security raised a seed roundInvestor LiveOak Ventures$3mReportvia Security, Funded
September 2025Geordie AI raised a seed roundInvestors General Catalyst and Ten Eleven Ventures$6.5mReportvia Security, Funded
September 2025F5 acquired CalypsoAISecures AI at inference with red teaming and real-time defences$180mReportvia SecurityWeek

Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Each Report link goes to the announcement or story the source cites, and the via link to the round-up or newsletter issue. Amounts are in US dollars. The category is what the bought or funded company sells.