· Climate Activist Investor, #ClimateAction (Current)2021–
· Hydrogen Champion, Pale Blue Dot Energy2018–2021
· Ideas Spark, Pale Blue Dot Energy Limited2013–2018
· Director Commercial Portfolio Development, CO2DeepStore Ltd2007–2013
· Managing Director, Fast Frog (Strategic Consultancy)2005–2007
· Commercial Manager, Helix RDS2003–2005
· Manager WCP UK, Schlumberger2000–2003
· Manager IPM UK, Schlumberger1995–2000