Grid Connections
Specialist grid connection services supporting transmission and distribution networks across the UK and Ireland.
The UK’s leading independent connection provider
TMS Grid are a specialist Independent Connection Provider (ICP) delivering complex electrical infrastructure projects across the UK and Ireland. Our expertise spans high-voltage networks from 66kV up to 400kV.
About us
Building the grid behind a net-zero world
Since our founding in 2017, TMS Grid has grown rapidly to become one of the UK’s leading high-voltage engineering companies. With specialist capability spanning 66kV to 400kV, we operate at the most demanding end of the power network, supporting nationally significant energy, infrastructure, and industrial developments.
We pride ourselves on our ability to manage complex interfaces, challenging site conditions, and programme-critical connections. Safety, quality, and technical excellence underpin everything we deliver for our valued clients.
Expertise at every step
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Engineering Procurement Construction
EPC delivery supporting the coordinated construction of energy and infrastructure projects.
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Operations & Maintenance
O&M services focused on maintaining asset performance, reliability, and availability during operation.
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Civil, Mechanical, Electrical Installation
Installation services delivering civil, mechanical, and electrical works across energy and infrastructure projects.
Our valued partners
SECTORS
Engineering infrastructure at scale
TMS Grid delivers electrical infrastructure expertise across a diverse range of energy and infrastructure markets. Our experience spans both established and emerging technologies, supporting complex developments that demand reliable power connections, robust engineering, and coordinated delivery to enable secure, resilient, and future-ready energy assets.
Engineering infrastructure at scale
TMS Grid delivers electrical infrastructure expertise across a diverse range of energy and infrastructure markets. Our experience spans both established and emerging technologies, supporting complex developments that demand reliable power connections, robust engineering, and coordinated delivery to enable secure, resilient, and future-ready energy assets.
Engineering with impact
MW CONNECTED
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GW+
PROJECTS DELIVERED
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STRATEGIC PARTNERSHIPS
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YEARS OF EXPERIENCE
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Insights
Leading the conversation
Industry news, project awards and company updates from TMS Grid, sharing developments across the power sector alongside insights into our work, growth and role within critical infrastructure delivery.