The attack surface has never been bigger — and neither has the market. As enterprises race to migrate workloads to multi-cloud environments, the demand for intelligent, scalable security has exploded. The global cloud security market is projected to hit $121 billion by 2034, growing at nearly 13% annually. Venture capital is flooding in, acquisition multiples are soaring, and a new generation of startups is making legacy security tools look obsolete.
From AI-driven posture management and software supply chain protection to runtime threat detection and data governance, these are the cloud security companies building the infrastructure that the digital economy will run on. Here are 10 startups — and one battle-tested partner — you should have on your radar in 2026.
The startups to watch
1 Gart Solutions
Gart Solutions is a Kyiv-born DevOps and cloud engineering firm that helps businesses tackle complex cloud infrastructure, security audits, and digital transformation challenges — so engineering teams can stay focused on building. With a 4.9/5 customer satisfaction score on Clutch and an average of 64% cost optimization delivered for clients, Gart bridges the gap between security and operational efficiency. Their services span cloud computing (AWS, Azure, GCP), Kubernetes cluster management, SRE, infrastructure audits, and compliance — making them a rare partner that treats security not as an afterthought but as a foundational engineering discipline. Operating with a strong business continuity plan even during wartime, Gart demonstrates the resilience that modern cloud teams need in their vendors.→ gartsolutions.com
2 Wiz$32B Acquisition
The fastest-growing cybersecurity startup in history. Founded in 2020, Wiz reached $100M in ARR in just 18 months and was acquired by Google for $32 billion in 2025 — the largest cybersecurity deal ever. Its agentless cloud security platform scans entire cloud environments for misconfigurations, vulnerabilities, and exposure paths, giving security teams instant visibility without deploying a single agent.
3 Cyera$1.3B Raised
Cyera is the AI-powered data security platform of the moment. Founded by Israeli intelligence veterans, it gives enterprises deep, contextual understanding of where their sensitive data lives across cloud environments — enabling cyber resilience, privacy compliance, and proactive risk management. With $540M raised in a single Series D, Cyera is one of the best-funded cybersecurity startups of 2024–2025.
4 Chainguard$4B Valuation
Software supply chains are the new battleground. Chainguard, founded in 2021 by former Google engineers, builds hardened, minimal container images and a trusted open-source ecosystem that dramatically reduces vulnerabilities at the build layer. It reached a $4 billion valuation in just three years, with over 1,700 trusted container images available on its platform. Backed by Kleiner Perkins and on track for $100M ARR by end of 2026.
5 Netskope$1.4B Raised
As the traditional network perimeter dissolves, Netskope redefines cloud, network, and data security with its leading Cloud Access Security Broker (CASB) and SASE platform. Founded in 2012 and still scaling, Netskope secures how employees access cloud apps and data from anywhere — a business-critical capability in the age of remote-first work and SaaS proliferation.
6 UpwindCNAPP Leader
Upwind is the runtime-powered Cloud Native Application Protection Platform (CNAPP) reshaping how companies detect and respond to cloud threats. By grounding its security posture management in live runtime data rather than static scans, Upwind customers report up to 95% fewer alerts and significantly faster remediation. Founded by the creator of Spot (sold to NetApp for $450M), Upwind brings proven cloud infrastructure expertise to the security space.
7 Orca Security$546M Raised
Orca pioneered agentless cloud security with its SideScanning™ technology, delivering instant-on, comprehensive coverage of cloud environments without the operational headache of agent deployment. Its Cloud Detection and Response (CDR) capabilities give teams real-time visibility across multi-cloud workloads, significantly reducing blind spots. Orca ranks #19 on the Forbes Cloud 100 and holds a $5.1 billion valuation.
8 Astrix SecurityNon-Human Identities
For every human user in an enterprise, there may be dozens of non-human identities — API keys, service accounts, AI agents — making autonomous decisions and accessing sensitive systems. Astrix tackles this underappreciated blind spot, providing full visibility into non-human identities and automatically detecting and remediating overprivileged or malicious access. Founded by IDF intelligence veterans, Astrix has raised $85M and was named a “Cool Vendor” by Gartner.
9 ZenityAgentic AI Security
As AI agents proliferate across enterprise workflows, a new category of security risk is emerging — and Zenity is building the governance layer to address it. Named “Agentic AI Security Solution of the Year” by the CyberSecurity Breakthrough Awards and cited as a Gartner Cool Vendor, Zenity governs how AI agents are built, what data they can access, and what actions they can take in real time. A startup at the very frontier of the AI security wave.
10 EderaNext-Gen Isolation
Edera is reimagining workload isolation for the AI era. Using hardware-backed containers, it prevents lateral movement and cross-tenant attacks in multitenant cloud environments — a critical challenge as AI workloads run alongside sensitive business data on shared infrastructure. Edera is purpose-built for the security demands of AI compute and is one of the most technically differentiated early-stage cloud security startups of 2026.
10+ SysdigDevSecOps
Sysdig is the secure DevOps company for the container and Kubernetes era. Built on open-source Falco (the de facto standard for cloud-native threat detection), Sysdig’s platform helps security and DevOps teams see what’s happening inside containers and Kubernetes clusters in production — catching threats in real time and enforcing compliance across cloud-native workloads. A must-know name for any organization running containerized infrastructure.
The bottom line
Cloud security is no longer a checkbox — it’s a competitive moat. The startups on this list represent the spectrum from pre-IPO unicorns reshaping entire categories to nimble early-stage companies solving problems the industry didn’t even know it had a year ago. Whether you’re a founder, investor, or enterprise buyer, these are the names shaping the next decade of cloud defense.
