Following Global Expansion Severn Group Confirms it has been entered into agreement to be acquired by Valmet Corporation as Part of an Exciting New Chapter in the Firm’s History
• The $480-million deal marks a new chapter in the story of Severn Group.
• Under Bluewater stewardship Severn Group has transformed from an energy focused manufacturer to a diversified industrial business operating across 12+ sectors worldwide
• The acquisition by Valmet, a Finland-listed global industrial leader, underscores the complementary nature of the two businesses.
• “We are delighted to join Valmet and begin a new chapter for Severn Group. Bluewater’s support has been instrumental in shaping the business we are today, and we now look forward to the future with confidence and momentum,” said Perttu Louhiluoto, CEO of Severn Group.
• The acquisition is expected to be completed during Q2 2026
London, 22 December 2025: Severn Group, one of Britain’s longest-established valve manufacturers, today announced that it has been acquired for $480 million dollars by Valmet, a Finland-listed global industrial leader. Contour Holdings International Limited, known as “Severn Group,” is the holding corporation for Severn Glocon, ValvTechnologies and LB Bentley. This transition follows a successful global expansion strategy led by its largest investor, Bluewater, and marks an exciting new phase in the company’s growth journey.
The global expansion of manufacturing locations in India and USA, positions Severn as a complementary fit within Valmet’s existing footprint.
Perttu Louhiluoto CEO of Severn Group, said, “We are proud to welcome Valmet as our new owners and look forward to building on the strong foundation laid over recent years. Thanks to Bluewater’s visionary leadership, Severn Group has grown from a British manufacturer in the energy space into a global industrial business with a truly international footprint. As we look ahead, the scale and breadth of the global opportunities in front of us are greater than ever and ones we cannot fully unlock alone. Joining Valmet positions us to accelerate our growth, expand into new markets, and deliver even greater value to customers worldwide. We are excited about this next phase of Severn’s journey.”
Thomas Hinnerskov, CEO of Valmet said, “This acquisition marks a significant step in the execution of Valmet’s Lead the Way strategy, strengthening our Process Performance Solutions segment and expanding our Flow Control business. Severn’s strong capabilities and proven track record in severe service for demanding applications make it an excellent strategic fit for Valmet. This acquisition strengthens our commitment to deliver lasting customer value over the life-cycle. We are proud to welcome Severn’s skilled and dedicated employees to Valmet,” says Thomas Hinnerskov, President and CEO of Valmet.”
Under Bluewater’s strategic guidance, Severn Group transformed from a predominantly upstream oil and gas business (73% in 2020) into a diversified global industrial company, expanding into over 12 new sectors and quadrupling earnings.
Tom Sikorski, Founding Partner at Bluewater, added, “We are pleased to hand Severn Group over to such a capable and global owner. Bluewater’s partnership has transformed Severn into a world-class business, and we thank everyone involved for their dedication. With the acquisition by Valmet, we think we have found Severn a sustainable and complementary home and the business is now well positioned to continue its successful journey and deliver long-term value on a global scale.”
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Media Contacts
Frazer Blyth (Bluewater), fblyth@bluewaterpe.com
Andrew McLachlan (Media Zoo), andrew@mediazoo.tv, 07931377162
Archit Chopra (Media Zoo), alex.williams@mediazoo.tv, 07518547953
About Bluewater:
Bluewater is a specialist international private equity firm focused on the middle-market energy sector. Their experienced investment and operating professionals drive value creation as they manage $2.5billion of investment across a portfolio of 19 companies. Today, Bluewater has a prime focus on projects or technologies that contribute to the energy transition agenda and works to a diversified investment strategy based on the principles of sustainability and close working partnerships with best-in-class management teams. Bluewater has a strong focus on ESG and is a signatory to the UN Principles for Responsible Investment
About Severn Group:
Contour Holdings International Limited, known as “Severn Group,” is the holding corporation for Severn Glocon, ValvTechnologies and LB Bentley. Severn Group is one of the UK’s longest-established valve manufacturers, with a heritage spanning nearly 70 years. Originally focused on the energy sector, the combined group has successfully transformed into a diversified global industrial business operating across more than 12 sectors worldwide. Severn Group provides advanced flow control and engineering solutions to customers in industries including oil & gas, power generation, water treatment, and manufacturing. With a growing international footprint, Severn Group combines British engineering excellence with a commitment to innovation, quality, and customer service.