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One Big Circle

AIVR software that uses video and AI to flag safety and maintenance issues on UK railway networks for rail operators

Bristol, United KingdomFounded 2017onebigcircle.co.ukWebsite technologies

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Highlights

  • Hiring13 open roles
  • New on EvolcAdded 2026-11-05

About One Big Circle

One Big Circle develops AIVR (Automated Intelligent Video Review), a browser-based platform that uses machine learning to highlight priority issues in railway engineering and monitoring from video footage. AIVR Thermal records infrared video along the conductor and running rail and flags high-temperature hotspots for maintenance planning. The company designs and builds its hardware and software in-house.

The platform is used across the UK rail industry. Clients and partners named on the company's website include Network Rail, Siemens, Colas Rail UK, East Midlands Railway and Mott Macdonald. AIVR hosts over a petabyte of footage captured across the UK rail network.

The company was founded in 2017 and is based at Bristol Temple Meads station in Bristol, where its software, hardware and delivery teams work in a neighbouring lab and office. It has a team of over 80 people.

Product: AIVR (Automated Intelligent Video Review), a browser-based rail video review platform with AIVR Thermal and machine learning features.

Jobs at One Big Circle (13)

One Big Circle is hiring for 13 roles, mostly in engineering, based in Bristol.

See all 13 jobs at One Big Circle →

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Website technologies

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Analytics

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Chat & support

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Privacy & consent

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Website detection does not establish a paid subscription or company-wide use. Tools loaded after consent or sign-in may be missed. “No longer observed” does not prove the company stopped using a tool.