Zero Trust Architecture: Companies, Startups & Research

Microsoft, IBM, Cisco Systems, Palo Alto Networks and Google are among the principal companies active in zero trust architecture. Their work spans identity and access controls, application-level secure access, and security platforms for distributed environments. Zscaler, Amazon, Fortinet, Broadcom Corporation and Akamai also contribute through cloud access, network security or microsegmentation capabilities.

FACTS lists 2 startups overall and names Stealthpath Llc, whose records include 2 patents. Its patent describes software that authenticates and authorizes devices, applications, users and protocols across communicating nodes. The available information does not support a comparative ranking of startup prospects, so this example is best treated as a signal of activity rather than an investment recommendation.

Among named research contributors, Chandigarh University has 18 documents, Chitkara University has 15 and Lovely Professional University has 12. Their topics include adaptive security, federated learning, industrial IoT and energy-efficient approaches for constrained devices. These figures identify active contributors in FACTS, but do not establish a ranking across all universities or research centers.

FACTS records 15 grants totaling $29,573,935 since 2020. These are the grant figures associated with the topic data. The listed funding rounds total $613,562,866,360 across 31 rounds, but include broad corporate financing that is not necessarily dedicated to zero trust architecture. Treat the grant total as the more relevant funding indicator, not as a complete measure of investment in the field.

CiscoTechnology Inc. holds the most patents in the listed holder data, with 13, followed by Sophos with 10 and Palo Alto Networks with 7. Fortinet holds 4, while Level 3 Communications, Bank of America and Zscaler each hold 3. These counts identify the leading holders in the available patent-holder list.

No: FACTS reports 97 patents in the 24-month window and patent growth of -50.8%. This contrasts with publication growth of 106.7%, suggesting research activity is expanding while patent filings have declined. Patent and publication trends measure different forms of activity, so the divergence does not by itself show that commercial development or adoption is slowing.

Recent developments include September 2026 research on microsegmentation for smart greenhouse systems and zero trust for robotic ecosystems. In September 2026, another study proposed federated reinforcement learning and physical-layer fingerprinting for wireless sensor networks. In June 2026, Nimbus-T Global and Carahsoft partnered to deliver identity-first zero trust security to government agencies, extending the approach into public-sector use.

FACTS groups the approaches into identity-centric access, application-level network access, microsegmentation, device posture verification, and adaptive policy and analytics. Microsegmentation has 661 documents, while adaptive policy and analytics has 996. The approaches differ in what they assess or control: identity, access to a specific application, communication between workloads, device condition, or changing contextual signals.

The United States leads the country data with 11,252 documents, followed by the United Kingdom with 3,081 and Germany with 1,818. India has 1,799 and Japan has 1,436. These counts describe document activity associated with the topic; they do not necessarily measure deployment levels or the size of national zero trust markets.

FACTS identifies healthcare, cloud and SaaS, and industrial and critical infrastructure as major applications, with 2,267, 1,080 and 1,278 documents respectively. Other applications include remote workforce security, with 930 documents, and government and defense, with 698. These settings use zero trust to govern access across distributed users, services, devices and operational environments.