Vantify Limited (previously William Martin Compliance Limited) joined Safety Schemes In Procurement with the Prosure360 Scheme in December 2021 as a Registered Member. From 1st April 2025, Prosure360 has a new name – Vantify Supply Chain, and provides assessments for the SSIP Certified Categories. 

Vantify Supply Chain ensures a supplier benefits from two-way mutual recognition with all other SSIP-registered member schemes. The certificate awarded confirms the supplier has undergone a desktop assessment against the SSIP core criteria.