Previously known as SpecifiedBy, CausewayOne Product Explorer is trusted by over 100,000 architects and specifiers to find, research and compare building product data in minutes rather than hours.
Specifying construction products has never been so simple, with a standardised database of product information for thousands of materials and products, tools to manage your project shortlists and an easy-to-use system connecting you, directly, with manufacturers.
CausewayOne Product Explorer is now also available inside the CausewayOne platform giving 1,000's of contractors access to our product search functionality alongside their operations systems.
CausewayOne is our cloud construction operations platform that brings together applications that span the full lifecycle of a project. With applications spanning estimating, tendering, planning, procurement and workforce & site management, all the way to asset maintenance, CausewayOne unites the UK's biggest contractors & Local Authorities with their supply chain into a single connected environment to support the delivery of billions in project value.
We're the UK's largest construction product database.
2600
manufacturers listed in the database
117000
products listed in the database
108000
registered, known users
1000000
annual pageviews
Our Story
2012: Conception, driven by lack of organised, standardised building product data for early stage building product research.
2013-2021: Continued growth in users, manufacturers and product data sees SpecifiedBy become the largest building product research platform in the UK.
2021: Acquired by Causeway Technologies, expanding our capabilities to advance digital innovation in construction.
2026: SpecifiedBy rebrands as CausewayOne Product Explorer and is integrated into the CausewayOne platform alongside the 20+ construction operations software, integrating product data into the workflows of the UK's largest contractors and infrastructure owners.
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Get in touch to see how CausewayOne Product Explorer helps architects and specifiers find, research and compare building products and materials on the UK’s largest construction product database.
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Copyright Causeway Technologies 2026
Registered Office: Third Floor, Sterling House, 20 Station Road, Gerrards Cross, Buckinghamshire, SL9 8EL
Registered No. 3921897
Previously SpecifiedBy
SpecifiedBy is now part of CausewayOne
We've updated our name and branding as the first step towards product data interoperability and the Golden Thread across the CausewayOne platform.
The features you rely on stay the same
For now, you can continue to use the www.specifiedby.com domain to access the same product data and search functionality.
Why the change?
CausewayOne is a construction operations platform used by 1,000's of contractors to design, win, manage and deliver projects.
CausewayOne Product Explorer will develop further to bring a central interoperable product data layer to all our contractor applications; by removing data siloes across parties & applications we can work towards a safer and more efficient industry.
Already a CausewayOne user?
You can use Single Sign-On (SSO) to access the functionality of Product Explorer inside the CausewayOne platform alongside your other Causeway applications.