Design, engineering and build
Specialist mechanical, electrical, IT and public health systems delivered through advanced BIM and digital project controls, ensuring precision, coordination and programme certainty.
Data centres
From initial concept through to final delivery, we create high-performance data centres built for resilience, speed and long-term operational certainty.
Built for resilience
The growth of cloud, AI and digital services is reshaping the demands placed on data centres. Facilities must be delivered faster, operate more efficiently, and adapt to ever-evolving technology. all without compromise to resilience.
We understand that in mission-critical environments, failure is not an option.
Our experience spans new build facilities, live upgrades and complex phased programmes, supporting clients across government, financial services and co-location sectors. We consistently deliver within tight programme constraints, without compromising commissioning, safety or system performance.
Understanding first. Engineering second
Every successful data centre starts with a clear operational strategy. We work closely with clients to align infrastructure, power and IT requirements from the outset, ensuring efficient investment, reduced delivery risk and long-term flexibility.
Through early engagement, we improve buildability, integrate offsite manufacturing opportunities and develop commissioning strategies from day one — delivering infrastructure designed for real operational performance and whole-life value.
End-to-end capability. Delivered as one
Our strength lies in bringing together specialist capabilities into a single, integrated delivery model delivering reduced interfaces, improved coordination and providing certainty at every stage.
Power and grid infrastructure
Through our Freedom business, we advise, design and deliver substations and high-voltage infrastructure, enabling clients to overcome grid constraints and secure reliable capacity for growth.
Offsite manufacture and industrialised delivery
Our offsite facilities enable parallel construction, reducing on-site labour, improving safety and accelerating programme delivery while enhancing quality and consistency.
Commissioning, IST and soft landings
Commissioning is embedded from the outset. Our structured, multi-stage approach, from factory testing through to integrated systems testing, ensures systems perform under real-world failure scenarios.
Operation and facilities services
We provide seamless transition into live environments with integrated IT solutions and full life cycle IT services, ongoing maintenance, optimisation and performance management to protect uptime and extend asset life.
Proven delivery in critical environments
Our track record reflects a consistent ability to deliver safely, efficiently and at scale within some of the industry’s most demanding environments.
£0m+of data centre engineering infrastructure delivered
£0m+of projects completed in the last 12 months
£0m+in data centre cabling and managed support services
Our work in action
Working within highly operational and technically demanding settings, we deliver engineering, power and digital solutions that prioritise resilience, scalability and long-term performance, supporting the infrastructure that underpins today’s connected world.
5 May 2026Wembley Stadium, [London]
Powering performance behind one of the UK’s largest event stadiums
4 minutes
Let’s build what’s next
Whether you need a trusted principal contractor, a specialist engineering partner or long‑term operational support, NG Bailey brings the experience, capability and confidence required to deliver critical data centre infrastructure; safely, reliably and sustainably.
The future of data centres is being built today. We’re ready to lead the way.