DYWIDAG Group Acquires Interspan - A transformative acquisition creating a global market leader
DYWIDAG
Key Facts:- German DYWIDAG Group has completed the acquisition of Sydney-headquartered Interspan (Holdings) Pty Limited, a specialist in post-tensioning and concrete repair and strengthening services operating across Australia, the UK, Europe and Asia.
- Interspan, founded in 2006, employs more than 400 people and has annual revenues in excess of 75 million euros.
- The combined group has proforma revenues of 465 million euros as at end March 2026, with EBITDA margins above 10 per cent, and Interspan founders Don Fraser and James Laws will remain with the business.
DYWIDAG Group
Acquisition of Interspan
A transformative acquisition creating a global market leader
8th July 2026
DYWIDAG Group (“DYWIDAG”), a leading global provider of geotechnical products, post-tensioning services and stay-cable solution services today announces it has completed the acquisition of Interspan (Holdings) Pty Limited (“Interspan”) a leading provider of post-tensioning and concrete repair & strengthening services in Australia, UK and Europe.
Founded in 2006 and headquartered in Sydney (Australia), Interspan employs more than 400 people, has annual revenues in excess of 75m euros. It is a vertically integrated specialist engineering and construction business that provides post-tensioning, structural strengthening, and remediation solutions for new and existing concrete structures, with engineering, design, and installation delivered in-house.
Interspan represents a compelling strategic fit for DYWIDAG as it:
- Extends DYWIDAG’s core services in Australia and the UK to include post-tensioning and repair & strengthening services;
- Leverages Interspan’s strengths in repair & strengthening services to unlock new opportunities in America, UK, and Europe; and
- Is expected to generate substantial synergies from supply chain savings.
The founders of Interspan, Don Fraser and James Laws, will remain with the business post-completion in order to ensure a smooth transition and deliver on the strategic growth initiatives of the combined group.
The acquisition has been financed from existing cash resources and by issuing subsequent bonds issued under its existing senior secured bond framework with an issue size of EUR 50m (the “Tap Issue”). Arctic Securities AS, filial Sverige, acted as Sole Bookrunner.
The transaction is a highly significant milestone for DYWIDAG and will create an international market leader in the provision of its core services. As of the end March 2026, Dywidag and Interspan had combined proforma revenues of 465m euros with 10%+ EBITDA margins.
DYWIDAG was advised by A&O Shearman LLP (legal counsel) and EY Parthenon (financial & tax due diligence advisor). Interspan was advised by Greenstone Partners (corporate advisor), Mont Lawyers (legal counsel) and Magpie Advisory (tax advisor).
Hugh Pelham, CEO of DYWIDAG, commented:
"Interspan is an exceptional business with a strong track record of customer satisfaction and financial performance. The combination of Interspan and DYWIDAG reinforces our position as a global market leader in the provision of post tensioning, stay-cable solutions, geotechnical products and specialist repair and strengthening solutions”
James Laws, Joint founder of Interspan, commented:
"This transaction marks an exciting new chapter for Interspan. DYWIDAG is a global market leader and we see a clear strategic fit between our businesses. DYWIDAG’s international platform, technical capabilities and long-term investment mindset provide significant opportunities to accelerate Interspan’s growth in existing markets, expand into new markets and further enhance our offering to our clients.
Don Fraser and I are incredibly proud of what the Interspan team has built and we look forward to working with DYWIDAG to take the business to the next level.”
For further information, please contact:
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DYWIDAG Group |
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Hugh Pelham, Chief Executive Officer |
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Thomas Fritzmann, Chief Financial Officer |
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About us:
About DYWIDAG Group
- DYWIDAG is a specialist engineering business providing products and services to stabilize ground and to construct or strengthen concrete or steel structures. The company also provides infrastructuremonitoring services.
- The business was founded in 1865 and is headquartered in Munich.
- The main service lines are post-tensioning systems, geotechnical products for ground support, stay cables systems and infrastructure monitoring solutions.
- Key customers are companies in the infrastructure, energy, and residential/commercial building industries.
For more information, please visit the DYWIDAG Group website: www.dywidag.com
About Interspan
- Interspan is a specialist engineering and construction business providing post-tensioning, structural strengthening, and remediation solutions for new and existing concrete structures, with engineering, design, and installation delivered in-house
- For new structures, Interspan designs and installs post-tensioning systems (slab, multi-strand, and stress bar) that enable thinner slabs, longer spans, and reduced material use across buildings, bridges, and civil structures.
- For existing structures, the Group provides strengthening and remediation services, including CFRP1strengthening, concrete repair, external post-tensioning, and cathodic protection
- Founded in 2006, the Group employs +400 people and is headquartered in Sydney, Australia with operations across Australia, the UK, Europe and Asia
For more information, please visit the Interspan Group website: https://interspan.global/
Contact details:
Fiona Hamann
Hamann Communication
0415 191 659