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TWI is a global leader in technology engineering providing research and consultancy to its members.


United Kingdom

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TWI is a global leader in technology engineering providing research and consultancy to its members.

Respected for its expertise, professionalism, impartiality and confidentiality, TWI works with the most influential companies worldwide across all industry sectors.

A member company benefits from TWI's specialist knowledge in structural integrity and corrosion management, materials testing, NDT, failure investigation, welding and joining technologies, materials processing and training.

Products & Services

TWI’s engineering services support allow us to help you at every stage of the design, creation, operation and decommissioning of your products or assets – through effective understanding and application of welding, joining, inspection and allied technologies.

Industrial Membership grants you immediate access to our highly skilled welding engineers and joining/inspection process specialists via phone or e-mail. This can extend to a wide range of full consultancy support (including on-site visits from experts or engineering teams) and through to contract research and development projects.

The independent nature of TWI means that we can offer impartial technical support to help improve your products and services while protecting your personal data. We work closely with our Industrial Members to provide support across a wide range of industries and locations, from the built environment to offshore applications and aerospace, covering all aspects of mechanical and electrical engineering.

TWI’s single client projects bring together experts from TWI and the Member to provide solutions directly focused on assisting the Member’s business. The work undertaken is confidential with the outcomes and associated intellectual property owned exclusively by the client.

Pre-paid consultancy allowance (PCA) to the value of 20% of your Membership fee can be used to fund, or offset the cost of a range of engineering support activities outlined below:


TWI has a long track record of original thinking and invention, having delivered significant innovations to the industry over the course of our history.

For example, TWI invented the now widely used friction stir welding method, the crack tip opening displacement (CTOD) test for measuring fracture toughness and laser cutting technology for steels, and remains at the forefront of each of these, via methods for thick section welding, sour fracture testing and robotic decommissioning of contaminated nuclear facilities. Recent innovations include functional metal coatings for composites, non-destructive testing techniques for composites and polymer pipes, and long-life electron sources for additive manufacturing.

TWI’s research is carried out across a number of different project types, acting confidentially on behalf of single Members or groups of Members with a shared interest, on behalf of the whole Membership to develop technologies they all have the opportunity to exploit, and in collaboration with industry, other research and technology organisations and academic institutions.

TWI’s single-client projects bring together experts from TWI and the Member to provide solutions directly focused on assisting the Member’s business and remaining as confidential as the Member wishes.

Our Core Research Programme (CRP) is a market-driven, annual, rolling schedule of research and development (R&D) projects, informed by TWI’s Industrial Member companies, that investigates specific, identified challenges being experienced in a broad range of industry sectors, involving different engineering-based technologies.

An in-depth report detailing the technical R&D work undertaken, together with outcomes, is produced for each CRP project, and these are made available solely to TWI Industrial Member companies, who contribute up to 50% of their annual fee to the CRP, as Industrial Member Reports.  However, in order to extend some of the knowledge and innovation out to wider industry, CRP Report Abstracts; derived from the full reports, and CRP Executive Summaries; produced at the start of a new CRP project, are publicly available.

TWI’s joint industry projects bring Member companies together, pooling resources and expertise to develop solutions with a mutual benefit through the completion of substantial research projects.

We are involved in a large body of publicly funded research, working with many partner organisations to develop commercially attractive technology and techniques that are to the economic benefit of the area whose government provides funding. With more than two decades of experience in initiating and delivering these projects, TWI is willing and able to build successful proposals and consortia with a broad range of organisations wishing to be involved in such activity.

The Structural Integrity Research Foundation (SIRF), founded in 2012 and backed by Lloyd’s Register and BP, exists to promote research and innovation in structural integrity and non-destructive testing. SIRF provides industrial direction to the R&D performed within the National Structural Integrity Research Centre (NSIRC), a research hub on TWI’s site that provides postgraduate education within an industry-focused environment. SIRF and NSIRC were set up to address the UK engineering skills gap by delivering more than 500 post-graduate educated engineers into industry by 2025.

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