A Cleator Moor firm has been awarded a £30 million contract to supply PPE to the Nuclear Decommissioning Authority group.
Romar Innovate will provide personal protective equipment to NDA sites across the UK, including Sellafield.
The contract is worth an estimated £30m over four years.
Sellafield Ltd led the procurement process on behalf of the NDA group.
It will unlock additional investment by Romar Innovate in its West Cumbria operation, Sellafield Ltd said.
Susan Lussem, Sellafield Ltd supply chain director, said: “Keeping our workforce safe is our highest priority.
“Access to high quality, cost-effective PPE is vital to maintaining safety and allowing us to progress our mission to create a safe environment for future generations.
“I’m delighted Romar Innovate, a fantastic West Cumbrian SME, will providing these vital services across the UK, including at Sellafield.
“I’d like to thank previous provider Arco for their high-quality service, investment in West Cumbria, and vital support for our community during the COVID-19 response.”
Romar Innovate is part of the JBS Group.
The contract will see the company supply Sellafield Ltd, Dounreay Site Restoration Ltd, Nuclear Transport Solutions, the Low Level Waste Repository, Magnox Ltd and the National Nuclear Laboratory.
Its winning bid includes innovative proposals to drive down costs and provide greater efficiency for the UK taxpayer.
The company has pledged to create additional jobs in West Cumbria and will deliver community benefits including funding and mentoring for local entrepreneurs, and educational scholarships.
Margaret Johnstone, of Romar Innovate, said: “We are delighted to have secured this recent tender competition.
“This allows us to continue investment in our Cumbria-based infrastructure and personnel, and we look forward to maintaining our high levels of service and innovation in partnership with our clients across the NDA group.”