Multidisciplinary engineering and project delivery

We design, install, test and commission infrastructure across rail, water, power, waste to energy and defence, in the UK and internationally.

Our sectorsContact us

OSL Global at a glance

500+
years of combined engineering experience
SSI
Solid State Interlocking design, checking and testing in-house
IRSE
Approved Assessing Agency, licensing signalling engineers
since 2010
delivering multidisciplinary engineering

Interlocking and assurance

Few companies in the UK can still design, check and test SSI interlockings in-house. We do all three on our own simulation systems, so errors are found in the office rather than on site.

How it works

Who we work with

We work with a wide range of clients, from Network Rail and Tier 1 and 2 contractors to manufacturers, design houses and operators, whether we are the Principal Contractor or supporting one. They come to us for specialist depth that is hard to find elsewhere, delivered with the agility of an SME: direct access to the engineers doing the work, and decisions made quickly.

  • Network Rail
  • South Western Railway
  • AECOM
  • Egis
  • Colas Rail