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.

12acquisitions
57funding rounds
$535mpaid in the 3 acquisitions with a disclosed price
$707.7mraised in the 50 rounds with a disclosed size
Browse other categories

Showing 1 to 50 of 69

DateDealAmountSource
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
September 2025CrowdStrike acquired PangeaProvides security protections for enterprise AI systemsUndisclosedReportvia SecurityWeek
September 2025Check Point acquired LakeraLakera provides security software that protects enterprise AI applications from prompt attacks and data leakage.UndisclosedReportvia SecurityWeek
September 2025Cato Networks acquired Aim SecurityProvides security for AI agents and applicationsUndisclosedReportvia SecurityWeek
August 2025Swept AI raised a pre-seed roundInvestor M25$1.4mReportvia Security, Funded
August 2025Archestra.AI raised a pre-seed roundInvestor Concept Ventures$3.4mReportvia Security, Funded
August 2025Aim Intelligence raised a pre-Series A roundInvestor Mirae Asset Capital$1.3mReportvia Security, Funded
August 2025SentinelOne acquired Prompt SecurityPrompt Security provides an AI security platform that protects enterprise AI usage, applications, and agents.$250mReportvia SecurityWeek
July 2025Promptfoo raised a Series A roundInvestor Insight Partners$18.4mReportvia Security, Funded
July 2025Noma Security raised a Series B roundNoma Security provides a platform to discover, govern, test, and protect AI applications and agents.Investor Evolution Equity Partners$100mReportvia Security, Funded
July 2025Cyata raised a seed roundInvestor TLV Partners$8.5mReportvia Security, Funded
July 2025Resistant AI raised a corporate roundInvestor ExperianUndisclosedReportvia Security, Funded
July 2025Confident Security raised a seed roundInvestors South Park Commons, Ex Ante, Swyx and Decibel Partners$4.2mReportvia Security, Funded
June 2025Nestria AI raised a pre-seed roundUndisclosedReport
June 2025Hirundo raised a seed roundInvestor Maverick Ventures Israel$8mReportvia Security, Funded
June 2025Snyk acquired Invariant LabsSwiss company working on agentic AI innovationUndisclosedReportvia SecurityWeek
May 2025Openlayer raised a Series A roundInvestor Race Capital$14.5mReportvia Security, Funded
May 2025Arcjet raised fundingArcjet provides runtime security for AI agents, enforcing policies at the action boundary.$8.5mReportvia Security, Funded
May 2025Tenable acquired Apex SecurityWorks on protecting the parts of AI that can be attacked$105mReportvia SecurityWeek
April 2025Terra Security raised a seed roundInvestors FXP and SYN Ventures$8mReportvia Security, Funded
April 2025Reco raised fundingReco provides an AI agent security platform that maps, governs, and protects AI agents across enterprise applications.Investors Angular Ventures, boldstart Ventures, Insight Partners, Redseed and Zeev Ventures$25mReportvia Security, Funded
April 2025Virtue AI raised a seed roundVirtue AI provides an enterprise AI safety platform for securing AI agents and applications.Investor Factory$7mReportvia Security, Funded
April 2025Virtue AI raised a Series A roundVirtue AI provides an enterprise AI safety platform for securing AI agents and applications.Investors Lightspeed Venture Partners and Walden Catalyst Ventures$23mReportvia Security, Funded

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.