Best Series B Security & Cybersecurity Investors 2026

Cybersecurity is fundamental to maintaining our way of life and is essential for global commerce. We empower founders to create cybersecurity technologies that make our world more secure. As the original venture capital firm focused exclusively on cybersecurity, we invest globally and are stage-agnostic.

Build great companies by partnering with exceptional founders who deeply understand their markets. We provide not just capital but proven playbooks, talent networks, and operational expertise from our team of experienced operators.

We invest in who you are, not just what you do. We back visionaries and game-changers with character and global ambition. We partner long-term with founders, providing capital, operational support, and deep conviction in their vision.

Identify real-world constraints through active market participation and build decentralized consortiums to convert systemic bottlenecks into shared breakthroughs. Serious builders combining market-making expertise with long-term infrastructure development.

Long-term venture partnerships built on depth of thought, conviction, and dimensional thinking. We back founders with diverse lived experiences who are building transformative companies. We operate as a team sport—you don't work with individual partners, you work with Acrew. We invest in emotional intelligence, operational support, and the long arc of building meaningful companies.

Open source is eating software faster than software is eating the world. We invest in founders commercializing open source through sustainable business models (particularly open core where core is open but enterprise features are premium). This represents capitalism best-suited for accelerating open source innovation.

Cybersecurity is a permanent, growing category. Successful cyber investing requires deep domain expertise combined with operational experience. We partner with founders as true operating partners, not just capital providers. Category creators and cyber pioneers with differentiated approaches.

Exceptional Israeli cybersecurity founders, backed by deep domain expertise and access to Fortune 500 CISOs, can build companies that define how the world defends itself. Singular focus on cybersecurity, seed-stage capital, and unmatched buyer network.

Category-defining B2B software companies are built by founders with exceptional product instincts, technical depth, and execution discipline. We invest capital AND hands-on operational support to establish product-market fit, build GTM teams, and scale efficiently. We avoid trend-chasing and focus on sustainable, defensible businesses.

Storm Ventures backs early-stage B2B enterprise software companies with a focus on AI-native applications, cybersecurity, and cloud infrastructure. They employ a 'paddling to surfing' growth methodology and have deep expertise in taking companies from inception to $100M+ ARR. Their philosophy: 'the interface layer will disappear. The infrastructure layer will compound.'

Arbor Ventures is a fintech-only fund partnering with entrepreneurs globally to shape a smarter financial future. They invest across payments, cyber, insurance, regtech, AI/ML, marketplaces, capital markets, and blockchain — taking an expansive view of fintech across geographies with no place considered too far.

Point72 Ventures backs ambitious founders building for big outcomes across critical domains. Going deep, not wide—the firm focuses on specialized investment theses in AI, Consumer, and Defense Tech, bringing deep sector insights, partnership, and hands-on support from seed to pre-IPO.

Patient Capital. True Resources. Big Impacts. S3 backs visionary founders building in Business Software and Healthcare Technology. Unique single-LP structure (a multi-billion dollar philanthropic family office) enables patient, flexible investing unconstrained by traditional VC fundraising cycles. Founded in Texas in 2005 — the largest and longest-serving VC native to Texas.

Blumberg Capital backs visionary teams as early and growth stage investors, active board members, and hands-on advisors. They invest in transformative technology companies across enterprise software, cybersecurity, fintech, healthcare tech, and AI with particular strength in the US-Israel technology corridor.

Founders and operators backing fearless founders building infrastructure and SaaS companies that power the digital economy. We bring our own experience building companies to help technical founders nail go-to-market and assemble exceptional teams.

The best companies will be built by technical founders - engineers, researchers, and scientists who have experienced a problem viscerally and are compelled to solve it. We invest in tools, platforms, and infrastructure for technical builders, and we partner with founders to help them evolve into leaders of generational companies.

DVC invests in visionary founders building next-generation B2B SaaS and infrastructure companies at the intersection of AI, cloud, and enterprise software. Operating as a cross-border US-India fund, DVC backs companies in AI/MLOps, CloudOps, cybersecurity, fintech, and data infrastructure — providing not just capital but also go-to-market strategy, business development, executive recruiting, and follow-on syndication through the DVC Advantage program.

Technology and capital solutions for the global energy transition. We partner with entrepreneurs to build and scale innovative companies that power a better energy future, supported by collaborations with utilities and industrial incumbents.

Partner with remarkable growth-stage leaders to accelerate their journey from startup to scale-up through capital, operational expertise, and Google advisory access. Focus on transformational companies making the step change into growth.

We partner with bold builders of category-defining companies from Seed to Series F and beyond. Depth of commitment, depth of relationships, and depth of belief distinguish us. Complete immersion, authentic partnership, and unwavering conviction through market cycles.

Accelerate financial services and commerce innovation by investing in companies that bring transformative solutions to market faster. We leverage PayPal's deep payments expertise, global brand, and 426+ million user network to help portfolio companies scale rapidly.

Partner with exceptional founders building technology companies with long-term growth potential capable of fundamentally shifting markets for the common good. Provide capital, operational expertise, board participation, and network access to support founder vision and company building.

Independent global investment platform backing capital-efficient, high-growth technology companies across Europe and North America. Multi-stage, multi-strategy approach from venture to pre-IPO. Transatlantic local teams provide unique advantage in bridging European and US growth.

Cota Capital invests in 'net new' technologies — visionary ideas that either were never before possible or solve problems that didn't exist before. Knowledge is the true capital. The firm backs early-stage enterprise technology companies where deep operational expertise, competitive intelligence, and network access can provide compounding advantage beyond the check.

Notable Capital backs notable founders with global ambitions across cloud infrastructure & AI, enterprise software applications, and consumer tech/fintech — investing from the earliest stages through growth. U.S. Anchored, Globally Minded.

Invest in market-creating companies with exceptional founders and large addressable markets. Prioritize market size and dynamics, then evaluate product-market fit through personal usage test. Focus on founder quality and execution capability over other factors.

137 Ventures provides structured liquidity — equity loans against shareholder stakes, direct secondary purchases, and anchoring company-organized tender offers — to the founders, executives, and early employees of category-defining private technology companies. The firm supports generational companies through decade-long private lifecycles with flexible, founder-friendly capital structures.

Every industry will be transformed by software. Tola practices hypothesis-based investing targeting the 'enterprise scaffolding' of AI — domain-specific models, AI/ML tooling, AI SaaS applications, AI governance, and AI security — rather than foundational AI infrastructure. They back companies driving long-term, transformational change in large markets.

Category-defining entrepreneurs building fundamental shifts that upend entire industries. Focus on disruptive business models in energy transition, healthcare, AI, and consumer. Thesis values human relationships and founder-centric partnerships over financial metrics alone.

Radian Capital partners with software-driven B2B companies at scale, providing capital and hands-on operational support. They concentrate on select companies and go deep with each, emphasizing sustainable growth over growth at all costs.

The next decade will be defined by the addition of machine intelligence to software. Scale backs 'Cognitive Apps' — AI-powered applications that augment manual work and enable data-driven predictions — partnering with founders who can transition from founder-led to scalable go-to-market, accompanying them from Series A through IPO.

Global venture capital firm investing in lifestyle consumer brands and technology companies that positively disrupt large and growing markets. Great investments require deep industry expertise, hands-on operational support, and access to strategic partners.

Illuminate invests in companies solving mission-critical problems for financial institutions through fintech and enterprise software innovation. With deep access to tier-1 financial institution networks and specialized domain expertise, the firm creates unique value for portfolio companies through institutional customer access, operational guidance, and strategic partnerships.

Partner with exceptional teams building transformative technology companies across all stages

NTTVC backs founders with vision and energy to build transformative technology companies, particularly in enterprise technology, digital health, and AI/ML. The firm's unique structural advantage is its partnership with NTT — a Fortune 100 global IT services provider with 120,000 enterprise customers, $5B+ in annual tech resales, and a $22B systems integration business — giving portfolio companies extraordinary enterprise distribution and market validation channels.

BGV backs hands-on, cross-border enterprise AI startups operating under the Enterprise 5.0 framework — companies that combine intelligent machines with human ingenuity to drive leapfrog productivity improvements. They focus on vertical AI (industry-specific, proprietary data) and horizontal agentic platforms (cross-functional automation), with a strong preference for immigrant founders pursuing US go-to-market strategies from France, Israel, and India.

Back ambitious founders building disruptive early-stage technology companies. We provide not just capital but access to OMERS' multi-asset institutional platform. Our permanent pension backing gives us patient, long-duration capital unconstrained by traditional 10-year fund cycles.

Madrona invests in people and ideas for the long run — backing visionary founders building transformational technology companies, with deep focus on applied AI across domain-specific applications, AI infrastructure, developer tools, enterprise software, and AI-enabled biotech. The firm serves as an active, full-stack partner providing capital plus recruiting, business development, and customer introductions.

Apply AI and data science to identify and invest in N-of-1 companies with 10-100x potential. Back founders who expand individual freedom and decentralize power. Invest in companies that embody principles from the Bill of Rights (voice, fair process, proportionality, user power) and Bitcoin whitepaper (trust-minimized, verifiable, aligned incentives, open access).

Operator-led growth investor backing high-growth B2B technology companies driving digitization in fintech, data, and AI-driven technologies, especially proprietary data, regulated workflows, and infrastructure layers that AI agents need to call into.

Phoenix Court partners with exceptional founders from pre-seed through public markets and beyond. The firm operates as a multi-stage, multi-fund group — LocalGlobe (seed), Latitude (growth), Solar (late-stage), and Basecamp (emerging managers) — built on the conviction that the best companies grow big not just in private markets but across their full lifecycle. Founded on purpose: 10% of profits and 2% of carry go to Phoenix Court Works, which is transitioning to the single largest shareholder in the firm.

We invest in bold technical founders building the autonomous enterprise. Before you build your team, before you write your first line of code—that's when boldstart gets to work. We collaborate with technical founders at Inception, lead pre-product rounds, and help turn bold ideas into category-creating companies.

Georgian invests in market-leading B2B software companies across the AI technology stack—from infrastructure and developer tools to enterprise applications and cybersecurity. They pair growth-stage capital with an in-house AI Lab of 20+ ML engineers who embed with portfolio companies post-investment.

Community-driven VC led by active operators who simultaneously build and invest. Best support for founders comes from operators understanding current market challenges firsthand, not just history. Invest in category-defining technology companies.

Overlooked markets where distribution advantage compounds. Founders with deep domain empathy build durable moats. B2B software rebuilding industries through core workflows, data connectivity, and embedded intelligence.

Invest in innovative technology companies that can achieve significant market share in large, growing markets and grow independent of market conditions. Partner with exceptional entrepreneurs to build sustainable, profitable businesses that transform industry segments.

We back founders venturing beyond to build transformational companies that create positive, enduring change. Applied AI and global resilience are fundamental forces reshaping industries.

Partner with technical operators and SMB owners to execute technology-led middle-market buyouts. Capture outsized economic value from AI at the ownership layer of services providers rather than pure-play tech.

The world's most successful B2B software companies require presence and success in both North America and Europe. Frontline specializes in facilitating frictionless transatlantic expansion, supporting founders with global ambition through a dual-fund strategy optimized for international growth.

The AI-first transformation of business will be as big as digital, mobile, and cloud combined. We invest in companies building the AI-first technology stack: data foundations, AI tools, autonomous applications, and product-led growth companies that accelerate adoption. Founders building at any layer of this stack can reach goals and uncover opportunities previously unattainable.

Big things start small. We invest at seed stage and see potential where others don't. We believe in your vision for your company's future, not as it exists today. We think in decades, not days, committing to walk the entire journey with founders to build iconic companies. We share Antipodean ingenuity with the world.

Build category-defining technology businesses that deliver strong investment returns while addressing pressing business challenges. Leverage Fortune 500 parent (MassMutual) assets including real estate portfolios, renewable energy assets, and capital networks.

Digital innovation across four themes (AI, Blockchain, Computing Infrastructure, Big Data) will define the next generation of transformative companies.

Exceptional technology companies can be built anywhere—US, Israel, or Europe. We partner with experienced founders to provide capital, US market expertise, and global networks to help them scale internationally.

Ambitious founders solving fundamental problems across major industries. The next generation of transformational companies will be built on modern AI, secure infrastructure, and efficient commerce. We partner with technical founders with operator experience and compelling narratives.

Technology can have a highly disruptive impact on society. We back founders on the forefront of innovation with clear vision towards positive change, leveraging domain expertise to ensure value creation. Founder-first approach with operational support.

Operators backing entrepreneurs building global companies with exceptional people, world-class products, and cutting-edge technology. C4 focuses on deep tech and AI where operational expertise creates meaningful value. The firm believes Europe can compete globally in AI and robotics.

Depth-first venture investing through mastery in specific domains. We partner with bold builders challenging industry conventions, backing founders with technical depth and conviction to build enduring $1B+ companies. Complete immersion creates enduring companies.

Back notable founders with global ambitions using technology to transform industries. We partner with exceptional teams to scale from seed through IPO, providing capital, operational expertise, and network access.

Your first partner. Over 80% of investments are first checks. We partner with exceptional founders at inception stages, providing patient capital and deep partnership.

Menlo invests in transformative technology companies at multiple stages of early growth. We provide capital, operational expertise, and hands-on support to help founders build scalable businesses that change how we live and work.

Back technical founders building critical infrastructure for foundational industries. Pair growth-stage capital with deep regulatory expertise and government/industry connectivity to create defensible advantages in overlooked, essential sectors.

We support ambitious founders solving large problems through technology across all stages. Independent thinkers who challenge conventional wisdom are our ideal partners. We provide not just capital but operational expertise, global networks, and hands-on support from day one through scale.

We back founders building the future of B2B technology. From Latin America to the world, we invest early and partner with founders and companies for the long term. Our core purpose is to support founders and companies through founder-aligned partnerships forged in trust.

Deep technology and hard tech company investing at inflection points. Partner with technical founders building infrastructure-level solutions for global scale. Founded 2010 on belief that next generation of transformative companies require deep technical expertise, not just capital.

GV backs innovative founders moving the world forward, operating on long time horizons and dealing in decades, not rounds. Since 2023, GV has accelerated its focus on AI-native companies across infrastructure, applications, healthcare, and developer tools — with approximately 80% of new European investments now in AI.

We democratize venture capital by providing individual accredited investors with professional-grade access to elite venture opportunities. We leverage our massive 850,000+ community network and 11,000+ investors to create unique value for founders, sourcing and diligencing deals alongside top-tier VCs (a16z, Sequoia, Khosla) without leading rounds. Our network is our competitive advantage—it compounds value for all stakeholders.

Exceptional founders with clear technical solutions to enterprise market pain points, focused on SaaS, cybersecurity, infrastructure, data intelligence, and computer vision. We provide capital plus operational excellence through Shasta Elevate playbooks.

Breakthrough technologies that stretch the imagination — deep tech with the potential to create new product categories. We bring company-building skills and operating expertise to help founders find product-market fit.

Partner with exceptional founders building transformative technology companies from inception to IPO and beyond. Our moral compass is serving humanity with technology and capital. We provide not just capital but operational support, network access, and board participation to maximize the potential of founders' ideas and make history.

K5 Global backs category-defining companies from inception to IPO. The firm leverages exceptional networks across media, entertainment, politics, finance, and technology to provide strategic value beyond capital. We believe the best companies are built by founders who can access world-class talent, capital, and strategic relationships.

Help founders build companies of which they can be proud. We invest in mission-driven founders solving large, urgent problems using technology to create substantive change. Capital is necessary but not sufficient—sweat, reputation, and accountability are our core commitments.

World-class technology companies can be built anywhere. Greatness is in our backyard. We invest in market-defining companies across the Driveway region (Hudson River to Rocky Mountains), partnering with founders from idea to IPO. Build where your talent is. Build where your customers are. Build where you're strongest.

WndrCo positions itself as 'the founders behind the founders,' combining strategic capital with deep operational involvement. Unlike traditional VCs, partners take formal operating roles (interim CEO, CFO, CPO) within portfolio companies. This approach leverages the co-founders' proven track record: Sujay Jaswa scaled Dropbox from $18M to $10B as Business Founder/CFO, and Jeffrey Katzenberg transformed Disney Studios and built DreamWorks. The firm invests across all stages through three strategies: Build (acquiring underappreciated tech companies), Venture (leading post-PMF rounds), and Seed (very early checks). Focus areas are Future of Work, Cybersecurity, Developer Infrastructure, and Consumer Technology, with increasing emphasis on AI applications.

Transformative national security solutions emerge from early-stage private-sector startups developing frontier technologies. IQT identifies, evaluates, and leverages innovations to accelerate government adoption while enhancing commercial success. As of May 2026, IQT is emphasizing mission investing through fewer larger bets in autonomy, contested logistics, critical infrastructure, and technologies that can move to mission use quickly.

As the world becomes more information-rich, most transformative new companies will leverage data science, machine learning, and advanced computing power. We back founders building breakthrough solutions at this intersection.

New and powerful AI systems will give rise to transformative startups. We back exceptional engineers, designers, researchers, and product builders using AI to solve critical problems in healthcare, law, education, energy, sciences, and enterprise. We provide capital, operational support, talent expertise, and conviction follow-on investing.

We back founders who combine emotional intelligence with business acumen and are on a mission to solve problems they deeply care about. We're often the first institutional check and provide mentorship, community, and long-term partnership support.

Solo GP model combining angel investing speed with VC-scale checks. Backs non-traditional founders solving their own problems. Rejects process-heavy VC bureaucracy in favor of speed, decisiveness, and founder-first engagement.

Identifies inflection points through proprietary Discovery Engine and backs founders who see opportunities others miss. Focuses on AI-driven transformation of B2B software and financial services, with deep technical due diligence analyzing 250+ data points.

We invest in startups and venture funds, creating a symbiotic network that propels innovation. Our approach is characterized by long-term thinking and a 'give first' philosophy.

Mangusta backs founders building mission-critical capabilities at the intersection of vertical AI and consumer disruption. Three investment filters: Domain Depth (vertical-specific expertise), Defensibility (proprietary data + systems integration), and Distribution (embedded GTM). The firm believes vertical AI co-pilots that augment domain experts — rather than generic AI — represent the most durable and defensible category.

Partner with exceptional founders to build generational companies that define the world's most critical industries. We provide not just capital but assemble teams of the highest caliber through our 5,000+ member builder community and deep operational expertise.

We supercharge growth in breakout companies, converting momentum into market dominance. We invest exclusively at Series B and beyond in companies that have achieved product-market fit and are ready to scale from millions to hundreds of millions in revenue.

Fitch Ventures invests in innovative technologies serving institutional credit, risk management, and enterprise clients. The dual mandate focuses on generating financial returns while feeding innovation back into Fitch Group's product stack, often using investments as an M&A pipeline.

Back founders building iconic companies that transcend boundaries. We invest directly in their growth to make them unbreakable. Founded on principle that luck isn't made, it's engineered. Founders are our customer, not LPs. We always vote shares with founders and provide 1% non-dilutive founder development capital alongside every first check.

Back exceptional Kiwi founders building globally transformative companies, from day one to IPO. New Zealand founders represent a significantly undervalued asset class, and Icehouse provides capital plus an ecosystem of 3,000+ investors and deep operational support.

Battery Ventures operates as a stage-agnostic firm backing technology-driven category leaders across all growth stages from seed to buyout. The firm believes the best tech investments span the entire founder journey, and they practice collaborative, research-focused investing with embedded operational support through their Portfolio Services platform. They seek technical founders with deep domain expertise and experienced operators building in four core sectors: Application Software, Infrastructure Software, Consumer, and Industrial Tech + Life Science Tools.

We seek to create positive economic impact and long-term value by providing lifetime support to companies from seed through late-stage equity and credit. We differentiate through deep Wall Street expertise, strategic LP networks, and innovative financing vehicles.

Data is the defensible moat in technology. We invest in companies that build proprietary data assets, analytics capabilities, or machine learning advantages to dominate their categories. Founded on 'information arbitrage' thesis - applying hedge fund quantitative discipline to early-stage venture.

Real estate has been stagnant for 50 years despite massive innovation in other industries. Shifting demographics, transportation changes, and evolving preferences are forcing modernization. We back visionary entrepreneurs building solutions across construction, property management, residential finance, and retail that will improve quality of life, work, and community.

Technology companies are becoming intertwined with the global economy more so than ever before. The most compelling founders build businesses through a broader world view. White Star Capital backs globally ambitious entrepreneurs at Series A, B, and Seed stages across North America, Europe, and Asia, helping them scale internationally through deep local presence on three continents.

Greenoaks backs generation-defining technology companies with exceptional long-term growth potential. We make concentrated, large initial bets and maintain positions through multiple rounds and public markets, believing that exceptional founders and products deserve exceptional partnership.

HOF Capital invests in relentlessly ambitious founders building world-changing technologies that accelerate abundance: sustained technological progress that expands access to opportunity, health, and economic prosperity. Its current public thesis emphasizes AI and agentic systems as amplifiers of discovery, engineering, and knowledge creation, alongside frontier infrastructure and applications that can shorten scientific and technological invention timelines.

At the intersection of generational talent and transformative artificial intelligence. Evantic backs exceptional founders building AI-first B2B software, infrastructure, and platform businesses with the potential to become global market leaders.

Leading global companies that leverage technological innovation across public and private markets. Proven founders (especially ex-Googlers, AWS, Stripe) with large TAMs (billions+), product-led growth, and global ambitions. Conviction-based investing post-2022 correction emphasizing quality over quantity.

Backs frontier deep tech companies solving physical infrastructure bottlenecks of the AI supercycle, especially compute, energy, quantum, AI infrastructure, robotics, and autonomous manufacturing across the U.S.-Israel corridor.

Software founders need more than capital to scale successfully. Insight Partners combines investment capital with hands-on operational expertise, embedded teams, and network access to accelerate company growth across all stages.

Equity of access and representation in venture capital delivers positive returns. Diverse and underrepresented (including LGBTQ+) leaders of high-growth companies deserve capital access. When these founders succeed, they influence ecosystems and open doors for historically excluded groups.

Democratize access to venture capital by building large syndicates of non-traditional LPs. Invest across all stages, sectors, and geographies based on founder quality and market conviction, not category restrictions. Enable 2,000+ diverse co-investors to participate alongside marquee firms like Sequoia and Andreessen Horowitz while maintaining founder-friendly economics.