STL is a founder member of The Council of Property Search Organisations (CoPSO) - the major trade association for the property search industry.

On 29 September 2006, the Search Code and HIP Code were introduced delivering quality standards across both the property search industry and in Home Information Packs (HIPs). The Property Codes Compliance Board (PCCB) has been established to maintain a register of firms committed to operating within these new standards of practice and to independently monitor compliance with the Codes.

STL is registered with the PCCB as a subscriber to the Search Code.