Jonathan has been involved in the technology business for over three decades, founding, growing, managing and turning around business.

He has also helped founders, management and their investors in fast-growth technology segments to grow, manage change, enter markets, transfer technologies, acquire, merge and exit. 

Jonathan has worked with large and public infrastructure and system integration companies including: AT&T, Avaya, BroadSoft, BT, C&W, Cisco, HP, Global Switch, GMC, Huawei, Informix, Infosys, Intel, Myriad Group, Novell, IBM, IGT,  Nortel, OpenReach, Pace, TCS, and Sybase.

In addition, he has also worked with fast growth and venture-backed companies taking many to trade sale/public offering including: Calyx, Cambridge Cognition, CloudApps, Concateno, e2v technologies, Ecotricity, Engensa, free2give, Getjar, Holition, Intuwave, Interoute, Logicalis, Medelinked,  Multiven, Natural Machines, NMQA, Qinec, Socialbakers, Thorn Medical and Zomm.