Steve Thomas

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Steve Thomas is a co-founder of Calibre, a London-based startup building AI infrastructure for the testing, inspection and certification industry. He met his co-founder Gautham Senthilnathan at university, and the pair have been building together for seven years.

Before Calibre, Steve spent three years at Palantir, where he led some of the company's largest European engagements and built agentic systems that replaced manual workflows at scale across more than 20 regulated industries.

At Calibre, Steve and Gautham are deploying AI agents inside publicly listed TIC companies and accreditation bodies, and have launched AuditorOS, an AI product for independent auditors. The company raised a $3.3M pre-seed in May 2026 led by Vicus Ventures and CIV, with participation from I2BF, 9 Yards Capital, Jigeum and angels including Nikesh Arora.