In September 2021, Inflexion made a majority investment in Detectortesters, a company that designs and produces solutions that enable testing of smoke, heat and carbon monoxide fire detectors. As part of the investment Detectortesters simultaneously acquired Systems Distributors, Inc., a US distributor of Detectortesters products, which will be a platform for further growth in that region.

  • Sector


  • Headquarters

    Hertfordshire, UK

  • Fund


  • Investment date

    October 2021

  • Status


The company 

Founded in 1965, Detectortesters is the leading global manufacturer of fire detector testing equipment.   With a worldwide customer base, consisting mainly of field service engineers, the business exports its products to over 130 countries, deriving over 80% of its revenues outside the UK.  The company conducts all new product development in-house, working with all of the major fire detector OEMs, fostering efficiency as well as proprietary innovation.  


The Inflexion difference 

Inflexion will support the management team at Detectortesters to continue product innovation including a focus on sustainability. Inflexion’s commercial director will work with the management team to drive revenue growth through pricing strategies and sales channel optimisation, whilst Inflexion’s in-country experts will help to accelerate international growth.