Harsco Rail specialises in construction management and track maintenance, supporting organisations around the world. Part of the global Enviri Corporation, it brings these clients cutting-edge technology and first-class equipment, providing focused solutions to virtually any track maintenance or construction challenge.

Harmonic Limited serves as a catalyst for clients, helping them to manage change, take action, and build a better future. A specialist in complex delivery and change management, it was acquired by KBR in 2021. Today, it helps leading rail organisations to deliver their most complex projects on time, achieving sustainable and profitable growth. The firm builds robust programmes for these clients, supporting them with everything from design and development to overhaul.

Gutteridge, Haskins & Davey (GHD) is one of the world’s leading engineering, architecture, and environmental consulting companies, with integrated digital and advisory businesses.

GHD is an employee-owned company with a stated vision to address humanity’s most urgent needs: to ensure water, energy and urbanisation are made sustainable for generations to come.

Grayling Communications Limited is ‘the world’s local communications agency’, with a large affiliate network and 32 offices across the globe. Its talented strategists, public relations experts, data analysts, creatives, designers, producers, and consultants develop solutions that spark conversations, drive change, and protect client reputations. These industry-leading services range from corporate reputation management and consumer brand marketing to digital marketing, content creation, crisis support and stakeholder engagement.

Graybar is a specialist manufacturer of products for the rail industry., with an impressive range of products that have PADS approval from Network Rail.

We manufacture a very successful and unique self-regulating railway point heating system and the largest, comprehensive range of cable accessories for railway infrastructure telecommunications, signalling and power cable applications.

And we supply a complete design authority, system manufacturing, supply and installation, training, and commissioning service.

Gramm Barrier Systems are the UK’s leading specialist contractors in the supply and installation of noise barriers and security fencing.

Gramm installs all types of barriers including CE Marked National Highways compliant systems and whole life costs driven railway barriers. We carry out noise surveys, noise modelling, barrier designs including calculations and drawings.

Graffica provides simulation and modelling consultancy services, together with its simulation platform called HERMES (the Holistic Environment for Railway Modelling Evaluation and Simulation).

HERMES provides a unique whole railway simulation facility to undertake a broad range of railway evaluation tasks in a virtual environment in support of operational decision-making processes.

Global Reach Technology is a provider of high-performance wireless ISP solutions and services. It supports the most complex Wi-Fi networks, enhancing connectivity for brands, operators, and customers.

Global Reach Technology’s solutions help clients to increase everything from revenue to brand loyalty. Simplifying difficult connectivity, they offer a first-class user experience. And its technology is built for scale, handling thousands of terabytes of data and billions of Wi-Fi sessions each year.