ODL is one of the U.K's leading provider of tree-ring and wooden artefact dating services.

We bring a combined experience of over 80 years of dating buildings and wooden artefacts with high precision and accuracy.

That is why we are trusted by a wide range of private individuals, archaeological contractors and heritage agencies across the world, including: Historic England, Historic Royal Palaces, National Trust and the Royal Commission on the Ancient and Historical Monuments of Wales.