Sigma has a number of manufacturing sites in the UK and China managing and delivering a whole range of products from small bore rigid pipe assemblies and ducting through to complex mechanical, welded and composite sub-assemblies.

Our experienced teams have the knowledge and commitment to deliver the requirements of the customer and to overcome any challenges that may arise. We are constantly seeking out ways to improve processes and provide the customer with solutions that exceed their expectations, through cost reduction, reduced lead-times and weight reduction.


  • Multi functional sites

  • Best practice site philosophy

  • Turnkey capability

  • In House treatments

  • Fully certified laboratory

  • NADCAP approved

  • Major OEM & 1st Tier approvals

  • Support in NPI, low & high volume