cybersecdirectory

OT and ICS security acquisitions and funding

35 acquisitions of OT security vendors since 2020 and 51 funding rounds since 2022 on record. The most active buyers are Accenture (2), OPSWAT (2) and Rockwell Automation (2). See the OT security vendors in the directory.

35acquisitions
51funding rounds
$2.9bnpaid in the 5 acquisitions with a disclosed price
$1.5bnraised in the 40 rounds with a disclosed size
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Showing 1 to 50 of 86

DateDealAmountSource
23 Oct 2026Indurex raised fundingProvides an AI-native platform for monitoring and managing risk in industrial cyber-physical systems.Investors Contrarian Ventures, Axeleo Capital and CuriosityUndisclosedReport
September 2026Aiuken Cybersecurity acquired 4ElitechSpanish specialist in industrial and critical infrastructure cybersecurityUndisclosedReportvia SecurityWeek
August 2026TopHat Security, Inc. raised a Series A roundInvestor Landolt SecuritiesUndisclosedReportvia Security, Funded
August 2026Systematic Growth acquired 4SecureDevelops software for secure information exchange in classified environmentsUndisclosedReportvia SecurityWeek
July 2026Frenos raised a seed roundInvestors Exposition Ventures and Momenta$1.5mReportvia Security, Funded
July 2026CYTUR raised a Series A roundInvestors Jones & Rocket Investments, STIC Ventures and Sunbo Angel Partners$3.4mReportvia Security, Funded
June 2026Dream raised fundingInvestors Bicycle Capital and Group 11$260mReportvia Security, Funded
June 2026SSenStone raised a corporate roundInvestor Hyundai Motor GroupUndisclosedReport
June 2026Nexus IT acquired TecServ IncIndustrial technology services firm serving operational technology environmentsUndisclosedReportvia SecurityWeek
June 2026Accenture acquired DragosDragos provides cybersecurity for industrial control systems and operational technology environments.UndisclosedReportvia SecurityWeek
May 2026Cequra raised fundingInvestor Motion VenturesUndisclosedReportvia Security, Funded
April 2026Everfield acquired Landis+GyrBuilds systems that spot break-ins and odd behaviour on industrial networksUndisclosedReportvia SecurityWeek
April 2026ABS acquired RMC GlobalProvides industrial cybersecurity, risk management and resiliency solutionsUndisclosedReportvia SecurityWeek
January 2026Claroty raised a Series F roundClaroty provides cybersecurity for cyber-physical systems in industrial, healthcare, and commercial settings.Investor Golub Growth$150mReportvia Security, Funded
September 2025Shift5 raised a Series C roundOnboard monitoring platform that detects cyber and electronic warfare threats on military vehicles, aircraft, ships and trains.Investor Hedosophia$75mReportvia Security, Funded
September 2025Seclab acquired SeckiotUndisclosedReportvia SecurityWeek
September 2025Mitsubishi Electric acquired Nozomi NetworksNozomi Networks provides OT and IoT security solutions for critical infrastructure, offering asset visibility and threat detection.$883mReportvia SecurityWeek
August 2025BLUESKYTEC raised fundingInvestor Maven Capital Partners$2mReportvia Security, Funded
July 2025Nozomi Networks raised private equity fundingNozomi Networks provides OT and IoT security solutions for critical infrastructure, offering asset visibility and threat detection.Investor Partners GroupUndisclosedReportvia Security, Funded
June 2025Steryon raised a seed roundInvestors 4Founders Capital and Abac Nest$1.1mReportvia Security, Funded
April 2025Insane Cyber raised fundingInvestor In-Q-TelUndisclosedReportvia Security, Funded
April 2025Corsha raised a Series A roundCorsha provides identity-based security for machine-to-machine connections in industrial and operational networks.Investor SineWave Ventures$18mReportvia Security, Funded
April 2025PlugSecure raised a pre-seed roundInvestor Apeiron Venture Capital$786kReportvia Security, Funded
March 2025RMC Global acquired Shearer and AssociatesEngineering and cybersecurity firm for defence and critical infrastructure projectsUndisclosedReportvia SecurityWeek
March 2025Integrity360 acquired HoliseumFrench firm providing OT and IoT security servicesUndisclosedReportvia SecurityWeek
March 2025Armis acquired OtorioOperational technology and cyber-physical systems security solutionsUndisclosedReportvia SecurityWeek
February 2025CQR raised a seed roundInvestor Shorooq Partners$3mReportvia Security, Funded
February 2025Dream Security raised a Series B roundInvestor Bain Capital Ventures$100mReportvia Security, Funded
January 2025Frenos raised a seed roundInvestor DataTribe$3.9mReportvia Security, Funded
December 2024OPSWAT acquired FendSecures operational technology against cyber threats using data diodes and unidirectional gatewaysUndisclosedReportvia SecurityWeek
November 2024ServiceNow acquired Mission SecureGives industrial sites trust-free protection built for operational technologyUndisclosedReportvia SecurityWeek
November 2024Belden and Hirschmann Automation and Control acquired VoleatechGerman firm making OT cybersecurity solutions, particularly firewalls$6mReportvia SecurityWeek
October 2024DeNexus raised a Series A roundInvestor PGV$17.5mReportvia Security, Funded
July 2024Sword Group acquired IACS ConsultingCyber security consultancy for industrial automation and operational technology environmentsUndisclosedReportvia SecurityWeek
July 2024Marlink acquired DivertoKeeps business and industrial systems safe from digital attacksUndisclosedReportvia SecurityWeek
July 2024Accenture acquired True North SolutionsIndustrial engineering solutions for operational technology in energy and miningUndisclosedReportvia SecurityWeek
June 2024XONA Systems raised fundingInvestor Energy Impact Partners$18mReportvia Security, Funded
June 2024Fend raised debt funding$150kReportvia Security, Funded
June 2024ioAire raised a seed round$740kReportvia Security, Funded
May 2024TXOne Networks raised a Series B roundTXOne Networks provides operations-first cybersecurity for industrial operational technology environments.Investor TGVest Capital$51mReportvia Security, Funded
April 2024Salvador Technologies raised a seed roundInvestor HubraumUndisclosedReportvia Security, Funded
April 2024RMC acquired SecuriconFirm guarding both business systems and industrial control networksUndisclosedReportvia SecurityWeek
March 2024Nozomi Networks raised a Series E roundNozomi Networks provides OT and IoT security solutions for critical infrastructure, offering asset visibility and threat detection.Investors Mitsubishi Electric and Schneider Electric$100mReportvia Security, Funded
March 2024HackBook raised a pre-seed round$150kReport
March 2024Claroty raised private equity fundingClaroty provides cybersecurity for cyber-physical systems in industrial, healthcare, and commercial settings.Investor AB Private Credit Investors$100mReportvia Security, Funded
December 2023Salvador Technologies raised fundingInvestor PICO Venture Partners$6mReportvia Security, Funded
November 2023Novaigu raised a pre-seed roundUndisclosedReport
October 2023Rockwell Automation acquired Verve IndustrialCybersecurity for industrial control systems and operational technologyUndisclosedReportvia SecurityWeek
September 2023Salvador Technologies received a grantInvestor BIRD Foundation$2.2mReportvia Security, Funded
September 2023Dragos raised a Series D roundDragos provides cybersecurity for industrial control systems and operational technology environments.Investor WestCap$74mReportvia 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.