“The award of the Principal Contractor Licence (PCL) is a significant milestone for RSS Infrastructure, demonstrating our commitment and expertise in managing and coordinating rail infrastructure works safely and efficiently. This rigorous assessment process is a testament to the hard work and dedication of our staff to ensure we remain at the forefront of the rail industry.*”
John Byrne, Head of Rail Operations
Principal Contractor Licence for Rail Projects
RSS Infrastructure (RSSI) is a multi-disciplinary service provider to the infrastructure sector. With extensive experience and expertise in the rail industry, we are well-equipped to handle various projects and provide comprehensive services to our clients. Our rail operations capability and a Principal Contractor Licence (PCL) means we can support Network Rail, rail depots and Tier 1 contractors with their requirements.
Focusing on Safety
RSSI is highly respected and trusted, having built strong relationships with clients and stakeholders in the rail industry and other sectors. Committed to delivering the highest quality services, we ensure the safety and wellbeing of all workers and the general public.
Our Commitment to Quality
RSSI has an established track record in providing high-quality, safe and efficient work on rail infrastructure projects. Holding a PCL allows us to take on the role of principal contractor for rail infrastructure projects and responsibility for managing and coordinating any project and ensuring that all work is done safely and efficiently.
Accreditations and Certifications
In addition to its PCL, RSSI also holds various accreditations and certifications, such as ISO 9001 (quality management), ISO 14001 (environmental management) and ISO 45001 (occupational health and safety). These accreditations demonstrate our commitment to excellence with the highest performance standards.
Contact Us
Please get in touch with us for more information, or call 0330 113 0004, to discuss how RSSI can assist your rail infrastructure project. Our experienced Rail Operations team will be ready to answer any questions about our services or how we can help you achieve your goals.
Recent Articles

Pedal to Paris 2026: the moments our riders will remember
RSS Infrastructure and Auctus Management Group riders share the moments they will remember from Pedal to Paris 2026, which raised more than £16,500 for the Royal British Legion and took fundraising across seven rides beyond £100,000.

Armed Forces Week 2026: The Value Veterans Bring to the Infrastructure Industry
Armed Forces Week 2026 provides an opportunity to recognise the service, dedication and sacrifice of the Armed Forces community across the UK.

My Year in Railway Ecology — A Personal Reflection as Principal Ecologist at RSS Infrastructure
When I joined RSS Infrastructure in December 2024, I was ready for something new.