Attackers no longer break in. They log in. Most security was built before AI agents existed. Teams juggle separate tools and settings. One missed setting leaves a gap, and gaps between tools are where breaches spread. Greymatter.io is a Zero Trust runtime security platform for apps, APIs, and AI agents. Services, APIs, users, AI agents, prompts, and MCP tools stay under control and on the record. One platform. Built in, not bolted on. Control. Set policy once. Apps old and new follow it without a ticket or a rebuild. Your rules travel with the app, so an attack stays where it started. Secure. Requests have to prove who is behind them, so a stolen password or token gets attackers nowhere. People, apps, and AI agents are all verified. Post-quantum encryption is on by default, so data stolen today stays unreadable tomorrow. Encryption is FIPS 140-3 validated (CMVP #5191). AI Guardrails catch malicious prompts and risky AI actions, and block them when you choose. See. When someone says “prove it,” you can. Trace any action to a person, a time, and the rule that allowed it. One product does the work of a stack of security tools: WAF, App, API & AI Gateway, AI Guardrails, Mesh, Forensic Auditing, Identity, and GitOps Automation. One console. One plan. Nothing extra to buy. No rip and replace. No rewrites. Greymatter.io runs on Kubernetes, OpenShift, RKE2, k3s, k0s, and fully offline networks. Proven first on defense programs where a dropped connection was not an option. Named a GigaOm Radar Leader and Outperformer, four years and counting. Network Control Center Solution of the Year at the CyberSecurity Breakthrough Awards, two years in a row. Available in the DoD Tradewinds marketplace. Make a stolen password worth nothing. Try the whole platform free for 30 days: greymatter.io/start-for-free
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The greymatter.io annual revenue was $12.6 million in 2026.
15 people are employed at greymatter.io.
greymatter.io is based in Arlington, Virginia.
The NAICS codes for greymatter.io are [5171, 518, 51, 51711, 517110, 517].
The SIC codes for greymatter.io are [7375, 73, 738, 737].