What are the latest funding news in the cybersecurity market? (September 2026)
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Cybersecurity companies announced 12 funding deals of at least $300,000 between July 30 and August 25, 2026, totaling approximately $852.4 million.
AI security, autonomous security operations, and non-human identity security accounted for the largest share of the capital raised during this period.
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Insights
- Eight of the 12 cybersecurity funding deals focused directly on AI models, AI agents, or AI-enabled defense workflows, representing roughly $758 million, or 89% of the capital raised in this cybersecurity funding snapshot.
- Horizon3, Alice, and Zenity accounted for about 60% of disclosed funding, showing that investors concentrated the largest cybersecurity rounds in companies with established enterprise traction and broad platform ambitions.
- AI agent security appeared across identity security, SaaS security, application security, and governance, suggesting that non-human identities are becoming a shared control problem rather than a standalone cybersecurity category.
- Autonomous security validation attracted the largest single deal, with Horizon3 raising $250 million, which signals demand for tools that continuously test enterprise defenses rather than only reporting vulnerabilities.
- Several rounds were labeled as growth investments or unnamed financings instead of standard series rounds, a sign that cybersecurity companies are increasingly using flexible financing structures at later stages.
- Israel remained highly visible in cybersecurity innovation, with Corma, Oligo Security, Zenity, and Arrakis Security all linking Israeli product development with global enterprise go-to-market plans.
- The period covered companies across the cybersecurity stack, from AI red teaming and runtime application protection to Microsoft 365 security, cybersecurity investment management, and security data intelligence.
As this chart shows, and as featured in our cybersecurity market deck, search interest in cybersecurity has been trending upward
Summary table of the latest funding deals in the cybersecurity market as of September 2026
We define the cybersecurity market as the set of technologies and services whose primary purpose is to protect digital systems, data, and users from cyber threats.
We include security software (e.g., identity, endpoint, network, cloud, application, and data security), as well as dedicated security services such as managed detection and response, security operations, penetration testing, incident response, and security awareness training.
We exclude general IT infrastructure and services (e.g., basic hosting, generic backup and disaster recovery, IT outsourcing, and purely physical security) unless they are specifically designed and marketed as cybersecurity offerings.
You can also read our detailed analysis to understand how funding activity in the cybersecurity market has evolved over the last few years.
We also have a quarter-by-quarter analysis of funding activity in the market here.
Finally, you can check our complete list of fundraising deals for the cybersecurity market (we update this list every quarter) as well as our ranking of the most funded startups.
| Name | When | Amount in $ | Round Type | Category |
|---|---|---|---|---|
| Alice | August 25, 2026 | $140M | Growth round | AI Security & AI Trust and Safety |
| Prevalent AI | August 19, 2026 | $22M | Growth investment | Security Data Management & Cyber-Risk Intelligence |
| Mindgard | August 12, 2026 | $30M | Series A | AI Security & AI Red Teaming |
| Corma | August 10, 2026 | $60M | Seed | Security Operations & Defensive AI |
| Loom Security | August 5, 2026 | $3.4M | Seed | Security Posture Management & Cyber-Risk Operations |
| Obsidian Security | August 4, 2026 | $85M | Series D | SaaS Security & Non-Human Identity Security |
| Oligo Security | August 4, 2026 | $60M | Funding round | Runtime Application Security & Cloud Workload Security |
| Zenity | August 3, 2026 | $125M | Series C | AI Agent Security & Identity Governance |
| Horizon3 | August 3, 2026 | $250M | Series E | Autonomous Penetration Testing & Security Validation |
| Arrakis Security | August 2, 2026 | $8M | Seed | AI Agent Security & Identity Security |
| Balance Theory | July 31, 2026 | $19M | Series A | Cyber-Risk Management & Security Program Management |
| Inforcer | July 30, 2026 | $50M | Series C | Microsoft 365 Security & Managed Security |
All the latest funding deals during in the cybersecurity market as of September 2026
Alice raised $140 million in an August 2026 growth round.
When was it?
Alice announced the $140 million financing on August 25, 2026.
Who are they?
Alice tests AI models and agents for jailbreaks, prompt injection, harmful behavior, and data leakage, then provides guardrails and production monitoring.
Geographical focus?
Alice is headquartered across New York and Tel Aviv and serves AI labs and enterprise customers globally.
Why do we include them in the cybersecurity market?
Alice belongs in the cybersecurity market because its platform protects AI systems against adversarial attacks, unsafe model behavior, and sensitive-data exposure.
What is the company stage?
Alice is at a growth stage, with strong product-market fit among leading AI labs and large enterprises.
How much did they raise?
Alice raised $140 million in the new financing, bringing total funding to about $280 million.
What round is it?
Alice described the transaction as an unlabeled growth round rather than a standard Series E or Series F.
Why did they raise?
Alice raised the capital to expand AI testing, guardrails, live monitoring, research, and enterprise sales.
Prevalent AI raised $22 million in an August 2026 growth investment.
When was it?
Prevalent AI announced the growth investment on August 19, 2026.
Who are they?
Prevalent AI creates a trusted data layer that connects fragmented enterprise security, risk, networking, and compliance information.
Geographical focus?
Prevalent AI has roots in the United Kingdom and is expanding its commercial presence in the United States and global enterprise market.
Why do we include them in the cybersecurity market?
Prevalent AI belongs in the cybersecurity market because security teams use its context platform to understand cyber risk and make security decisions.
What is the company stage?
Prevalent AI is a profitable growth-stage company that has operated for about nine years.
How much did they raise?
Prevalent AI raised a $22 million growth investment from Integrity Growth Partners.
What round is it?
Prevalent AI described the financing as a growth investment rather than a conventional Series round.
Why did they raise?
Prevalent AI raised the capital to expand sales, marketing, customer success, partnerships, and its United States operations.
This chart, included in our cybersecurity market deck, compares the main business model options for XDR and MDR cybersecurity vendors
Mindgard raised $30 million in a Series A round in August 2026.
When was it?
Mindgard announced its Series A financing on August 12, 2026.
Who are they?
Mindgard automatically red-teams AI models, agents, and applications to identify exploitable security weaknesses before attackers find them.
Geographical focus?
Mindgard is headquartered in London and Boston and sells to organizations in the United Kingdom, United States, and wider enterprise market.
Why do we include them in the cybersecurity market?
Mindgard belongs in the cybersecurity market because its product conducts offensive testing of AI systems to uncover security vulnerabilities.
What is the company stage?
Mindgard is at an early growth stage, with an enterprise product that has moved beyond its research origins.
How much did they raise?
Mindgard raised $30 million, bringing total funding to approximately $42 million.
What round is it?
Mindgard raised a Series A led by Album VC.
Why did they raise?
Mindgard raised the funding to scale engineering, product development, sales, and marketing for its AI security platform.
Corma raised $60 million in a seed round in August 2026.
When was it?
Corma publicly announced the financing on August 10, 2026.
Who are they?
Corma builds cybersecurity-specific AI models and agents that analyze security data to investigate and respond to attacks.
Geographical focus?
Corma operates from Tel Aviv and San Francisco and targets large enterprise customers in the United States and internationally.
Why do we include them in the cybersecurity market?
Corma belongs in the cybersecurity market because its AI models are designed for defensive security operations, detection, investigation, and response.
What is the company stage?
Corma is at an early commercial stage and reported initial deployments with Fortune 100 and Fortune 500 organizations.
How much did they raise?
Corma raised $60 million in its first publicly announced financing.
What round is it?
Corma raised a seed round led by Sequoia Capital, with Khosla Ventures and Coatue participating.
Why did they raise?
Corma raised the capital to expand model training, security research, and development of automated cyber-defense agents.
This chart, included in our cybersecurity market deck, breaks down CrowdStrike’s playbook in cybersecurity
Loom Security raised $3.4 million in a seed financing in August 2026.
When was it?
Loom Security recorded the initial sale of its financing on August 5, 2026, with the related filing made public later that month.
Who are they?
Loom Security provides a security posture platform that brings together identity, device, network, application, and data signals.
Geographical focus?
Loom Security is headquartered in Lawrence, Kansas and focuses on the United States enterprise cybersecurity market.
Why do we include them in the cybersecurity market?
Loom Security belongs in the cybersecurity market because its platform helps security teams identify, prioritize, and manage cyber-risk exposure.
What is the company stage?
Loom Security is at an early commercial and seed-stage growth phase with an operating security platform.
How much did they raise?
Loom Security raised $3.4 million from an offering of up to $4.6 million.
What round is it?
Loom Security described the transaction as a seed financing.
Why did they raise?
Loom Security raised the funding to support product development, sales, and expansion of its enterprise security posture platform.
Obsidian Security raised $85 million in a Series D round in August 2026.
When was it?
Obsidian Security announced its Series D financing on August 4, 2026.
Who are they?
Obsidian Security monitors and controls non-human identities and AI agents inside enterprise SaaS applications such as Salesforce, Workday, ServiceNow, and Slack.
Geographical focus?
Obsidian Security is headquartered in Palo Alto, California and sells its SaaS security platform to global enterprises.
Why do we include them in the cybersecurity market?
Obsidian Security belongs in the cybersecurity market because it protects enterprise applications from misuse of service accounts, API tokens, and autonomous agents.
What is the company stage?
Obsidian Security is a growth-stage company with strong enterprise traction and a reported base of large annual contracts.
How much did they raise?
Obsidian Security raised $85 million at an estimated post-money valuation of about $1.1 billion.
What round is it?
Obsidian Security raised a Series D led by Crescent Cove Advisors.
Why did they raise?
Obsidian Security raised the capital to invest in research, development, and go-to-market expansion for AI agent security.
In our cybersecurity market deck, we identify pain points entrepreneurs should prioritize
Oligo Security raised $60 million in a new funding round in August 2026.
When was it?
Oligo Security announced the $60 million financing on August 4, 2026.
Who are they?
Oligo Security monitors running applications and workloads to identify exploitable vulnerabilities and stop attacks at runtime.
Geographical focus?
Oligo Security is headquartered in Tel Aviv and sells to global enterprise and government customers.
Why do we include them in the cybersecurity market?
Oligo Security belongs in the cybersecurity market because its platform directly detects and blocks exploitation in applications and cloud workloads.
What is the company stage?
Oligo Security is at a growth stage and reported approximately 300% revenue growth.
How much did they raise?
Oligo Security raised $60 million, bringing its total funding to about $140 million.
What round is it?
Oligo Security called the transaction a new funding round without publicly assigning a Series label.
Why did they raise?
Oligo Security raised the funding to accelerate product development and expand global sales and customer support.
Zenity raised $125 million in a Series C round in August 2026.
When was it?
Zenity announced the Series C financing on August 3, 2026.
Who are they?
Zenity secures AI agents and low-code automations by monitoring intended actions, enforcing policies, and stopping unsafe activity.
Geographical focus?
Zenity is Israel-based and serves enterprises deploying AI agents and low-code systems worldwide.
Why do we include them in the cybersecurity market?
Zenity belongs in the cybersecurity market because its product governs permissions, behavior, and risk across AI agents and enterprise automations.
What is the company stage?
Zenity is a growth-stage company with product-market fit and an expanding base of production AI security deployments.
How much did they raise?
Zenity raised $125 million, bringing total funding to approximately $185 million.
What round is it?
Zenity raised a Series C led by Norwest.
Why did they raise?
Zenity raised the capital to expand its platform, AI security research, customer support, and international sales operations.
This market map, featured in our cybersecurity market deck, highlights top companies and startups in the cybersecurity market
Horizon3 raised $250 million in a Series E round in August 2026.
When was it?
Horizon3 announced its Series E round on August 3, 2026.
Who are they?
Horizon3 provides NodeZero, an autonomous platform that performs authorized attacks against networks and cloud environments to identify exploitable weaknesses.
Geographical focus?
Horizon3 is headquartered in San Francisco and is expanding across Europe, Australia, Singapore, and other global markets.
Why do we include them in the cybersecurity market?
Horizon3 belongs in the cybersecurity market because its platform provides continuous penetration testing and security validation for enterprise defenses.
What is the company stage?
Horizon3 is a mature growth-stage company with thousands of customers, rapid ARR growth, and FedRAMP High authorization.
How much did they raise?
Horizon3 raised $250 million at a valuation of more than $2 billion.
What round is it?
Horizon3 raised a Series E co-led by NightDragon and New Enterprise Associates.
Why did they raise?
Horizon3 raised the capital to expand internationally, grow its partner network, and invest further in autonomous security validation.
Arrakis Security raised $8 million in a seed round in August 2026.
When was it?
Arrakis Security announced its seed financing on August 2, 2026.
Who are they?
Arrakis Security gives enterprises visibility and governance over AI agents, including agent identities, permissions, behavior, and access to business systems.
Geographical focus?
Arrakis Security has Israeli operations and targets enterprise customers in the United States and global markets.
Why do we include them in the cybersecurity market?
Arrakis Security belongs in the cybersecurity market because it secures AI agents as non-human identities that can access sensitive enterprise systems.
What is the company stage?
Arrakis Security is at an MVP and early customer-validation stage after emerging from stealth.
How much did they raise?
Arrakis Security raised $8 million in seed funding.
What round is it?
Arrakis Security raised a seed round led by Hetz Ventures.
Why did they raise?
Arrakis Security raised the funding to expand its Israeli engineering team, develop detection capabilities, and support enterprise deployments.
This chart, included in our cybersecurity market deck, illustrates yearly funding for cybersecurity startups
Balance Theory raised $19 million in a Series A round in July 2026.
When was it?
Balance Theory announced the Series A financing on July 31, 2026.
Who are they?
Balance Theory helps CISOs evaluate cybersecurity vendors, direct security budgets, manage purchases, and measure the impact of security investments.
Geographical focus?
Balance Theory is headquartered in Columbia, Maryland and primarily serves cybersecurity leaders in the United States.
Why do we include them in the cybersecurity market?
Balance Theory belongs in the cybersecurity market because its platform is designed specifically for cybersecurity investment decisions and security program execution.
What is the company stage?
Balance Theory is at an early growth stage and reported that it manages more than $1 billion in cybersecurity investment spend.
How much did they raise?
Balance Theory raised $19 million in new financing.
What round is it?
Balance Theory raised a Series A led by SYN Ventures, with DataTribe and TEDCO participating.
Why did they raise?
Balance Theory raised the capital to grow its team and advance its intelligence and automation platform for CISOs.
Inforcer raised $50 million in a Series C round in July 2026.
When was it?
Inforcer announced its Series C financing on July 30, 2026.
Who are they?
Inforcer enables managed service providers to manage Microsoft 365 security settings, risks, and security operations across many small-business customers.
Geographical focus?
Inforcer is headquartered in the United Kingdom and is expanding its cybersecurity business in the United States.
Why do we include them in the cybersecurity market?
Inforcer belongs in the cybersecurity market because it provides Microsoft 365 security, shadow-AI detection, and threat-response capabilities for managed service providers.
What is the company stage?
Inforcer is a growth-stage company with more than 800 managed service provider customers and reported 300% year-over-year growth.
How much did they raise?
Inforcer raised $50 million in the Series C financing.
What round is it?
Inforcer raised a Series C led by Insight Partners, with Dawn Capital and Meritech Capital participating.
Why did they raise?
Inforcer raised the capital to develop new security features, expand in the United States, and strengthen managed threat detection and response products.
Related blog posts
- The evolution of funding activity in cybersecurity
- How strong is fundraising in the cybersecurity market right now?
- The main fundraising trends in cybersecurity
- Cybersecurity: what are the top startups?
