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Penspen has been providing engineering, project management, asset management and integrity services to the energy industry worldwide for over 60 years. Originally founded in the UK in 1954 as Spencer & Partners, the company has now grown to include over 1,000 engineers with major offices in London, Aberdeen, Houston, Abu Dhabi, and Bangkok.

During its history, Penspen has undertaken over 10,000 projects, addressing a wide range of challenges from the economic evaluation of pipelines to complex integrated facilities design. The company's heritage is onshore pipeline engineering and they have been involved in major pipeline projects around the world. However, Penspen have expanded the range of their services to meet clients’ needs, and now provide the full scope of engineering services for the life cycle of an asset.

The company have also developed an extensive range of training services covering engineering design, integrity, and operations and maintenance, for energy assets.

Penspen works with a wide range of clients including many well-known international and national oil companies, utilities and infrastructure owners. The company differentiate themselves on the technical and operational quality of service they deliver to their clients and partners. Also, Penspen have no ownership ties to operators, contractors or suppliers, and therefore provide a truly independent, best practice service.

Penspen has been a member of the Dar Group for over 20 years. The Dar Group is an international network of professional service firms, with over 13,000 staff in over 100 countries. It is dedicated to the engineering design and project management of major infrastructure projects. Penspen is able to draw upon the resources, expertise and experience of the entire Group.


  • Engineering
  • Project Management
  • Asset Integrity
  • Asset Management
  • Training and Education
  • Software & Tools