On track for the future

We solve complex rail challenges for clients like Balfour Beatty, Costain, Network Rail, Transport for London and many more. We offer innovative solutions to project delivery whilst ensuring that output quality is guaranteed first time, every time.

How we

can help you

Optimised engineering based on experience and expertise. OSL provide multidisciplinary engineering, signalling, technical and project delivery support to clients nationwide and internationally.

Signalling & Telecoms

We have one of the widest signalling offerings in the industry from GRIP 1-8 Design through to Installation and Testing.

Electrification & Plant

With resources situated nationwide, OSL offer design, engineering and delivery expertise across all electrification activities.

Rail & Track

We offer specialist services for switches and crossings, permanent way, on-track plant, safety, consultancy, quality and assurance.

Training & Consultancy

We understand the need for a highly skilled and competent workforce. OSL deliver a wide range of training services, including IRSE and Mod 5.

Our work

Gatwick Station Project (GSP)

Collaborating with Costain, OSL are improving Gatwick Airport station to create more space for passengers, making the journey from the train to the plane easier, improving accessibility and supporting a more reliable train service.

Clacton Resignalling Project

OSL were the multidisciplinary Signalling Contractor for the delivery of the Clacton Resignalling works, including E&P Signalling Power, E&P Power/Points heating and lineside telecoms.

Glasgow Subway Modernisation

OSL is a long term strategic partner of Ansaldo and has a framework to undertake a variet of work across power, signalling and telecommunications equipment for the upgrade of the Glasgow subway.

Kilkerran Signal Box Life Extension Works

The objective of the project was to carry out various Life Extension Works and Renewals in the Kilkerran signal box area including the full renewal of the existing level crossing and the provision of new LED Road Traffic Lights.

Southampton Freight Train Lengthening

For these works, OSL are conducting all designs through to GRIP 4 – 8. GRIP 4 has been successfully completed and GRIP 5 is currently being delivered to schedule. This includes all design works from Panel design, Trackside through to the design of the Smartlock data.

Work with us


High quality recruitment is at the heart of everything we do. Join our team, and enjoy a dynamic and inclusive culture focused on professional development and continuous improvement.

Our impact

OSL Carbon Reduction plan

OSL Global is committed to achieving Net Zero emissions by at the latest by 2050. This plan outlines OSL Global’s compliance with Action Note PPN 06/21. 

Get In Touch

From general enquiries to technical support, drop us a message. 

Latest News

#PositiveChanges Eastrington Bug Hotel

#PositiveChanges Eastrington Bug Hotel

The ‘Eastrington Bug Hotel’ was built for the F2G project with the intention of joining areas of wildlife habitat, and enhancing an area of waste land, improving the local environment and creating a wildlife corridor where small mammals, rodents, birds and insects can move from area to area in relative safety.

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