Our team of 350 highly experienced design engineers, project staff and site teams in Australia, UK, Europe, the Middle East and Asia is small enough to talk to each other every day but large enough to have specialists create optimum engineering solutions for our clients and partners.

By working together with our clients, our team provides practical, innovative and high-quality designs using the Interspan post-tensioning slab system for residential and commercial buildings, which results in cost and time savings for our clients.

About Us

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About Us


Team

Team | News | Partners and Clients

Don Fraser at Interspan

Don Fraser Director

Don Fraser has over twenty years’ experience in the design and construction of post-tensioned concrete structures on major projects throughout Australia, the UK and the United Arab Emirates. He brings a broad range of expertise in design, operations, and tendering and is involved in all facets of the company’s operations.

With a background in structural design, Don is recognised as a driven leader who ensures projects are efficiently delivered through systems, processes and solid technical detail.

Don has been a Director of Interspan since its inception over 11 years ago and over that time, he has focused on developing the design operations, business and technology systems, industrial relations, compliance, health and safety systems, quality systems and staff training.

Now the Director of Australian Operations, Don leads a team of more than 30 staff and 180 site operatives who deliver projects to a diverse range of clients. Don holds a Bachelor of Engineering degree and a Bachelor of Commerce degree and is a member of the Institute of Engineers Australia.

Don Fraser at Interspan

Don Fraser Director

Don Fraser has over twenty years’ experience in the design and construction of post-tensioned concrete structures on major projects throughout Australia, the UK and the United Arab Emirates. He brings a broad range of expertise in design, operations, and tendering and is involved in all facets of the company’s operations.

With a background in structural design, Don is recognised as a driven leader who ensures projects are efficiently delivered through systems, processes and solid technical detail.

Don has been a Director of Interspan since its inception over 11 years ago and over that time, he has focused on developing the design operations, business and technology systems, industrial relations, compliance, health and safety systems, quality systems and staff training.

Now the Director of Australian Operations, Don leads a team of more than 30 staff and 180 site operatives who deliver projects to a diverse range of clients. Don holds a Bachelor of Engineering degree and a Bachelor of Commerce degree and is a member of the Institute of Engineers Australia.

James Laws at Interspan

James Laws Director

As a founding Director of Interspan, James Laws is passionate about our clients and our people. He firmly believes by delivering to their expectations and achieving their constant support are the key success factors of the business.

James has a hands-on-approach and takes an active role in the strategic development and growth of the group. This tactic has provided a solid foundation for successful overseas expansion as well as fostering new partnerships in Global regions over the past decade.

His relentless pursuit of excellence, his energy and the desire to lead by example, continue to set the expectations that drive the group towards its goal – to provide a complete service to our clients.

James holds a Bachelor degree in Quantity Surveying and is a member of the Institute of Chartered Surveyors Australia.

James Laws at Interspan

James Laws Director

As a founding Director of Interspan, James Laws is passionate about our clients and our people. He firmly believes by delivering to their expectations and achieving their constant support are the key success factors of the business.

James has a hands-on-approach and takes an active role in the strategic development and growth of the group. This tactic has provided a solid foundation for successful overseas expansion as well as fostering new partnerships in Global regions over the past decade.

His relentless pursuit of excellence, his energy and the desire to lead by example, continue to set the expectations that drive the group towards its goal – to provide a complete service to our clients.

James holds a Bachelor degree in Quantity Surveying and is a member of the Institute of Chartered Surveyors Australia.

Simon Weir at Interspan

Simon Weir Regional Manager - UK

Simon Weir has over thirty years’ experience in civil engineering and concrete frames. Simon has worked throughout the UK and specialises in the construction of large, complex and challenging concrete frames.

With a background in commercial management Simon has been involved with the development of the European projects and is now focussed on the growth of the UK and Ireland areas of operation.

As the General Manager in the UK, Simon brings a unique depth of experience in providing solutions for challenging complex concrete frame projects as well as in the development of new areas of business.

Simon holds a Bachelor degree in Quantity Surveying.

Simon Weir at Interspan

Simon Weir Regional Manager - UK

Simon Weir has over thirty years’ experience in civil engineering and concrete frames. Simon has worked throughout the UK and specialises in the construction of large, complex and challenging concrete frames.

With a background in commercial management Simon has been involved with the development of the European projects and is now focussed on the growth of the UK and Ireland areas of operation.

As the General Manager in the UK, Simon brings a unique depth of experience in providing solutions for challenging complex concrete frame projects as well as in the development of new areas of business.

Simon holds a Bachelor degree in Quantity Surveying.

Michael Cleven at Interspan

Michael Cleven Regional Manager - Victoria

Michael Cleven has over 11 years’ experience in the design and construction of post-tensioned concrete structures. Combined with his Master of Engineering degree, he is recognised as a driven manager amongst his peers and is highly respected in the industry.

Michael energises the Victorian business with his passion, commitment and strong work ethic and is known for identifying key future opportunities in construction.

As the Victorian State Manager, Michael is responsible for the sustainable growth and consolidation of the business throughout the southern states of Australia.

His roles include marketing, establishing and maintaining client relationships, providing competitive engineering solutions, negotiating contracts and monitoring progress on projects.

Michael Cleven at Interspan

Michael Cleven Regional Manager - Victoria

Michael Cleven has over 11 years’ experience in the design and construction of post-tensioned concrete structures. Combined with his Master of Engineering degree, he is recognised as a driven manager amongst his peers and is highly respected in the industry.

Michael energises the Victorian business with his passion, commitment and strong work ethic and is known for identifying key future opportunities in construction.

As the Victorian State Manager, Michael is responsible for the sustainable growth and consolidation of the business throughout the southern states of Australia.

His roles include marketing, establishing and maintaining client relationships, providing competitive engineering solutions, negotiating contracts and monitoring progress on projects.

Ayman Afifi at Interspan

Ayman Afifi Regional Manager - Middle East

Ayman Afifi has over 10 years’ experience in the design and construction of post-tensioned concrete structures. He brings a high level of experience in design to multiple international codes, operations, and tendering and leads his team to achieved their goals.

As a branch Manager for Middle East, Ayman is responsible for the sustainable growth and consolidation of the Middle East business unit.

Ayman roles include marketing, establishing and maintaining client relationships, reviewing design, negotiating contracts and monitoring progress on projects.

Ayman holds a bachelor degree of civil engineering, and is approved as post-tension design engineer by Dubai municipality in UAE.

Ayman Afifi at Interspan

Ayman Afifi Regional Manager - Middle East

Ayman Afifi has over 10 years’ experience in the design and construction of post-tensioned concrete structures. He brings a high level of experience in design to multiple international codes, operations, and tendering and leads his team to achieved their goals.

As a branch Manager for Middle East, Ayman is responsible for the sustainable growth and consolidation of the Middle East business unit.

Ayman roles include marketing, establishing and maintaining client relationships, reviewing design, negotiating contracts and monitoring progress on projects.

Ayman holds a bachelor degree of civil engineering, and is approved as post-tension design engineer by Dubai municipality in UAE.

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Philipp Demelt General Manager, DYWIDAG-Interspan Group

In his role as General Manager of the DYWIDAG-Interspan Group, Philipp is responsible for the growth of post-tensioned slab solutions in Belgium, Germany, Luxemburg, Netherlands, Poland and all other countries.

Philipp Demelt has long-term experience in the post-tensioning of bridges, tanks and stay cable bridges in central Europe. He had already focussed on post-tensioned structures before he began his civil engineering studies at the Technical Universities of Aachen and Dresden.

During his management role in civil post-tensioning business of DYWIDAG-Systems International in Belgium and Luxemburg, Philipp founded - together with James Laws - the European Joint Venture business between DYWIDAG and Interspan. With his passion for post-tensioning and his interest in development of new market opportunities, he is successfully growing our business in central Europe.

Philipp holds a bachelor of Engineering, a diploma in engineering and a diploma as International Welding Engineer (IWE).

Person Placeholder

Philipp Demelt General Manager, DYWIDAG-Interspan Group

In his role as General Manager of the DYWIDAG-Interspan Group, Philipp is responsible for the growth of post-tensioned slab solutions in Belgium, Germany, Luxemburg, Netherlands, Poland and all other countries.

Philipp Demelt has long-term experience in the post-tensioning of bridges, tanks and stay cable bridges in central Europe. He had already focussed on post-tensioned structures before he began his civil engineering studies at the Technical Universities of Aachen and Dresden.

During his management role in civil post-tensioning business of DYWIDAG-Systems International in Belgium and Luxemburg, Philipp founded - together with James Laws - the European Joint Venture business between DYWIDAG and Interspan. With his passion for post-tensioning and his interest in development of new market opportunities, he is successfully growing our business in central Europe.

Philipp holds a bachelor of Engineering, a diploma in engineering and a diploma as International Welding Engineer (IWE).

Huw Jones at Interspan

Huw Jones Director

A structural engineer with 35 years of experience working for multi-disciplined consultants and as technical manager for major construction companies. Huw's knowledge of the design process and its application through the build phase maximizes available resources and delivers the best solutions to the client. Huw has specialist experience in the design and construction of reinforced and post-tensioned concrete. With an expertise in integration of post-tensioning into building structures to achieve economic and efficient construction.

Over the past 20 years he has actively supported the reinforced concrete industry with an emphasis on post-tension in the United Kingdom assisting professional organizations such as the Concrete Centre, Institutions and Universities through technical review and presentation of principals to fellow professionals and students. He was a member of the drafting panel of TR43 Post Tension concrete Floor Design Handbook and was a former chairman of the Post Tensioning Association.

Huw Jones at Interspan

Huw Jones Director

A structural engineer with 35 years of experience working for multi-disciplined consultants and as technical manager for major construction companies. Huw's knowledge of the design process and its application through the build phase maximizes available resources and delivers the best solutions to the client. Huw has specialist experience in the design and construction of reinforced and post-tensioned concrete. With an expertise in integration of post-tensioning into building structures to achieve economic and efficient construction.

Over the past 20 years he has actively supported the reinforced concrete industry with an emphasis on post-tension in the United Kingdom assisting professional organizations such as the Concrete Centre, Institutions and Universities through technical review and presentation of principals to fellow professionals and students. He was a member of the drafting panel of TR43 Post Tension concrete Floor Design Handbook and was a former chairman of the Post Tensioning Association.

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