Top Enterprise Security Startups in 2027

OLOID is a passwordless authentication platform tailored for frontline workers and shared devices. Fortune 500 companies in manufacturing, retail, healthcare, pharmaceuticals, and other frontline industries rely on OLOID to securely authenticate deskless workers using non-smartphone enabled factors such as face, NFC, RFID badges, etc., all while meeting strict security and regulatory requirements. Headquartered in Sunnyvale, California, OLOID is backed by leading investors including Dell Technologies Capital, Yaletown Partners, Honeywell Ventures, Okta Ventures, Unusual Ventures, and Emergent Capital.

BlueVoyant is a cybersecurity company that provides advanced threat intelligence, managed security services, and cybersecurity consulting to businesses and organizations. It was founded in 2017 by former U.S. Cyber Command and National Security Agency (NSA) officials. BlueVoyant focuses on helping organizations enhance their cybersecurity posture by offering services such as threat detection and response, vulnerability management, and proactive threat hunting. The company leverages a combination of human expertise and advanced technologies to address the evolving landscape of cyber threats.

CredShields is a full scope cybersecurity company where humans drive the work and AI accelerates it. Its flagship product, CredShields One, is an AI accelerated pentesting platform that crawls and maps the authenticated product, tests across every role and tenant boundary, reproduces each finding as a replayable proof, and re verifies fixes in seconds. Their work spans 2000+ pentests across banking, fintech, healthcare, and telecom, Hall of Fame recognition at Apple, Google, Tesla, Samsung, Cisco, and 40+ others, published CVEs, and open source contributions to Nmap and Metasploit. CredShields One brings that depth to scale, and SolidityScan carries their roots in smart contract and EVM security.

Guile is a cybersecurity and AI engineering company building an autonomous penetration testing platform. We operate at the intersection of offensive security and agentic AI systems to give software teams continuous, red-team-level security validation.

LegacyCore Holdings, Inc. is a defense and enterprise tech conglomerate fundamentally re-architecting how global data is stored, transmitted, and protected. We build un-jammable hardware networks, air-gapped server vaults, and zero-bloat operating systems designed to withstand state-sponsored cyber threats and prevent catastrophic global IT outages. We do not rely on legacy third-party vendors. We build from the bare metal up. Our technology is "Dual-Use"—engineered to secure commercial sectors (Healthcare, Finance, Critical Infrastructure) while meeting the rigorous demands of tactical defense applications.

Clarient is building the runtime control and assurance layer for autonomous AI. As AI agents begin operating with real permissions in production, existing security and governance tools can observe behavior but cannot control actions before damage occurs. Clarient provides real-time policy enforcement, behavioral monitoring, and compliance assurance at the point of action, giving CISOs and risk teams the visibility and control needed to safely deploy autonomous AI at enterprise scale.