White Winstanley Ltd (WW) is a UK-registered company, based in Cheshire, England. The Directors, Dr Edward White and Dr Julie Winstanley, are alumni of the University of Manchester, England and both experienced healthcare researchers.

They were previously the directors of Osman Consulting Pty Ltd, Sydney, Australia before relocating to the UK.

WW services fall into two main categories; Clinical Supervision (CS) evaluation research and Biostatistical Consultancy (see the dedicated pages to explore more).

White Winstanley Ltd is the sole world-wide distributor of the Manchester Clinical Supervision Scale (the so-called MCSS-26), originally developed at the University of Manchester.

This was the first clinical supervision-specific evaluation instrument to be developed and was launched by the Department of Health, UK in 1999. It remains the most widely adopted CS evaluation instrument used by researchers in 22 countries worldwide and translated into 11 languages other than English.