10 Top Tech Companies in Bristol

Bristol, a top spot for innovation in Europe, is home to a variety of tech companies.

Written by Rose Velazquez
An aerial view of the city of Bristol.
Photo: Shutterstock
UPDATED BY
Margo Steines | Mar 19, 2025

Belonging to an area of England known as the Silicon Gorge, Bristol is regarded as one of Europe’s top tech hubs. A variety of startups ranging from software development firms to cybersecurity agencies have chosen to settle there. We’ve compiled a list of some of the top tech companies in Bristol contributing to the city’s status as a hotspot for technical innovation.

Top Tech Companies in Bristol

  • Chainlink Labs
  • Pax8
  • Immersive Labs
  • Graphcore
  • A-Gas
  • Blu Wireless
  • Civica

Related ResourcesTech & Startup Jobs in Bristol

 

Top Tech Companies in Bristol

SmartBear is an IT company that offers tools for software development. Its focus is on application performance monitoring, a branch of IT that tracks specific metrics over time to provide actionable data to software teams. SmartBear’s API design software , for example, is used in IoT API development to monitor and improve functionality.

 

Ascent is a regulatory technology company that makes products to support compliance with tax, legal and industry regulations. Its tools use data science and artificial intelligence to perform the tedious and data-heavy processes that go into regulatory compliance. Ascent’s engagement with AI prioritizes opportunities for automation, with the holistic mission of making compliance and risk mitigation lower-touch processes.

 

A-Gas recovers refrigerants and other gasses and chemicals so they can be used again in the future. In terms of sustainability and protecting the environment, the company says one year of its recovery and reclamation efforts equate to taking more than one million cars off the road. A-Gas serves a broad range of global industries including automotive, aviation, mining and shipping. 

 

Civica develops software solutions for the public sector. Its solutions are intended to help organizations operate efficiently and meet the needs of the communities they serve. Thousands of governments, housing providers, schools and other public bodies worldwide use Civica’s software.

 

Blu Wireless builds mmWave technology to support global connectivity infrastructure, supplying wireless networking equipment for applications that include defense, public safety and high-speed transportation. The company says its solutions can “generate ultra-fast, resilient, carrier-grade and cost-effective wireless networks.”

 

Immersive Labs helps companies ensure their technical and non-technical employees are prepared to prevent and respond to potential cyber threats. The company provides hands-on training labs, as well as exercises for teams and organizations that are designed to develop and refine cybersecurity skills.

 

Pax8 is a software marketplace simplifying business software. Through Pax8, companies can select from a bevy of enterprise solutions to improve their network security or boost their productivity. After selecting software, Pax8 further enhances the process by consolidating billing. Besides software, it also provides responsive support and educational resources for clients to grow their cloud business.

 

Graphcore’s Intelligence Processing Unit (IPU) technology is meant to power AI research and innovation in fields such as healthcare and finance. Stanford Medicine, University of Bristol and University of Oxford have been among the customers to make use of Graphcore’s technology.

 

Chainlink Labs provides enterprise-grade oracle infrastructure to integrate smart contracts with external data sources, among other services. The company aims to empower clients to validate real-world events and enhance the transparency and reliability of blockchain-based transactions. Chainlink’s fully distributed team works across the globe, and it hires in Bristol.

 

Marvell Technology is a semiconductor technology company. Its operations employ what is known in the industry as a “fabless” approach, which means the company designs and engineers its products and uses third-party manufacturing contractors to actually run the production lines. Marvell’s most prominent products are semiconductors and related tools for data infrastructure.

 

 

Sara B.T. Thiel and Abel Rodriguez contributed reporting to this story.

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