David is the founder and CEO of Polymath Consulting who work on projects and advise organisations across the Cards & Payments industry. 
Polymath Consulting and David are particularly well known for their work on E-money & Emerging Payments.
David is also an active NED and advisor to boards.  He advises and/or sits on the boards of:  Cybertonica, Pace Invoice, Stylopay and Curve
He is an active business mentor through the startupbusiness bootcamp.
In consultancy he has worked across the complete value chain helping banks with their overall E-Money/Prepaid and Emerging Payments strategy right through to market entry analysis; as well as working with telcos, processors and programme managers on segment analysis, certification and membership applications.  
Other areas of support have included outsource partner review, RFP and partner selection right through to proposition development.
For brands he has assisted in product proposition development as well as managing RFP processes/reviewing existing contract relationships for both open and closed loop schemes.    
Geographically his client assignments have covered Russia, South Africa, Middle East, Europe and Asia. 
He is an active contributor to forums on linkedin and a regular media commentator on the future of prepaid cards/e-money & emerging payments.  He is co-chair of the People in Emerging Payments forum on linkedin.   He has chaired conferences and events from Mumbai to Moscow; Las Vegas to London and Johannesburg/Nairobi in Africa to Colombo/Sri Lanka.