S⁴Capital plc is a digital advertising and marketing services company established by Sir Martin Sorrell in May 2018.
| Registrars: |
| CFO: | Mary Basterfield |
| Non-Executive Director: | Colin R Day |
| Executive Director: | Wesley ter Haar, Victor Knaap, Christopher S. Martin, Scott Spirit |
| Executive Chairman: | Martin Sorrell |
| Independent Non-Executive Director: | Elizabeth Buchanan, Sue Prevezer, Rupert Faure Walker, Naoko Okumoto, Paul Roy, Margaret Ma Connolly, Miles Young, Daniel Pinto |
| Address: | 12 St Jamess Place, London, United Kingdom |
| Phone: | +44 203 793 0003 |
| Fax: | |
| Website: | http://www.s4capital.com/ |
| Email: |