Munnelly Group – Construction & Infrastructure
Eight specialist companies.
One group, building Britain since 1982.
Munnelly Group is a leading UK construction and infrastructure support services group. Through organic growth and strategic acquisitions, we deliver integrated solutions across the public and private sectors.
The group at a glance
A privately owned portfolio, built with purpose over decades.
Munnelly Group is a family of eight specialist companies serving the UK construction and infrastructure sector. Each operates independently while sharing a single set of standards, values and governance.
Group facts as at 2026. Operating financials available in the 2025 Group Report.
Our COMPANIES
Eight companies, one set of standards.
Each company operates as a single entity but is underpinned and centred around the key values and ethos of the Munnelly Group.
MSS
On-Site Construction Solutions
Established in 1982. The UK’s leading provider of construction site solutions – logistics, materials handling, traffic management and welfare across all UK construction industries.
MacRail
Site Access Solutions
Specialist provider of safety-critical site access solutions for the construction and rail infrastructure sectors. Acquired by Munnelly Group.
Guardior
Security Management
Security management solutions across UK construction sites and critical infrastructure – manned guarding, CCTV, remote monitoring and event security.
Bishopsgate
Third-Party Payment Solutions
Provider of third-party payroll, payment and compliance solutions for the construction sector and its supply chain.
City Calling
Professional Recruitment
Professional recruitment solutions across construction, infrastructure and the built environment – placing the right people in the right roles.
Weston Analytics
Workforce Management
Workforce management software and analytics – the digital backbone for site operations, productivity reporting and compliance across the group.
Bridgehead
Strategic Work-Winning
Strategic work-winning solutions – bid management, framework strategy and pre-construction consultancy for major contractors and infrastructure clients.
Severn Partnership
Geospatial & Survey
Geospatial, land survey and mobile mapping services. Delivering accurate spatial data for civil engineering, rail and major construction programmes UK-wide.
Working Safe, Thinking Smart
From the moment a colleague steps on site, to the moment they go home, our shared safety culture — the same across every company, every project, every day — underpins how the group delivers for clients in the most demanding environments.
Leadership
The family behind the
group.
Munnelly Group has remained a privately owned, family-led business for over 40 years. From day one, the company has been guided by a single principle: one company, one people. Every company under our portfolio shares the same values, the same standards, and the same accountability — held to account by the family that founded it and steers it still.
Latest News
News & insights from across the group.
Celebrating the spooky season: Our Halloween charity event
Laurence McGrath’s legacy
MSS cements innovative growth plans with appointment of new MD
Browse the full news archive — awards, appointments, acquisitions and group insights.
Governance & Accreditation
Audited, accredited and aligned to the principal UK construction qualification schemes.
The Munnelly Group is independently audited and certified against the principal UK construction industry standards and qualification schemes.
Careers
Ready to grow with the group?
The success of the Munnelly Group is built on foundations supported by talented people. We offer opportunities for people from all backgrounds to grow, develop and make a real impact across construction, logistics, security, surveying, recruitment, payroll and more.