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.

57funding rounds
$707.7mraised in the 50 rounds with a disclosed size
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Showing 1 to 50 of 57

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
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
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
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
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
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
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
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
April 2025Pillar Security raised a seed roundPillar Security provides a platform to discover, test, secure and govern AI agents across organisations.Investor Shield Capital$9mReportvia Security, Funded
April 2025Actualization.AI raised a pre-seed roundUndisclosedReport
April 2025Octane raised a seed roundInvestors Archetype and Winklevoss Capital$6.8mReportvia Security, Funded
April 2025CalypsoAI raised fundingInvestor Crosspoint Capital Partners$5mReportvia Security, Funded
April 2025Aurascape raised a Series A roundInvestors Mayfield Fund and Menlo Ventures$26.2mReportvia Security, Funded
April 2025YRIKKA raised a pre-seed roundInvestors Focal and Garuda Ventures$1.5mReportvia Security, Funded
April 2025Tremau raised a seed roundInvestors Auriga Cyber Ventures and Giesecke+Devrient Ventures$3.3mReportvia Security, Funded
April 2025Reality Defender raised fundingReality Defender provides deepfake detection to stop AI-generated media from causing harm.Investors Fusion Fund, Samsung NEXT and BNY MellonUndisclosedReportvia Security, Funded
March 2025Straiker raised a Series A roundStraiker provides security teams with tools to discover, test, and defend AI agents in enterprises.Investors Bain Capital Ventures and Lightspeed Venture Partners$21mReportvia Security, Funded
March 2025SplxAI raised a seed roundInvestor LAUNCHub Ventures$7mReportvia Security, Funded
March 2025GetReal Security raised a Series A roundGetReal Security provides deepfake detection and identity verification software for enterprises.Investor Forgepoint Capital$17.5mReportvia 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.