Our People

An expert team of professionals with the experience,
relationships, and creativity to solve even the most challenging
problems for our clients

Jim Long

Senior Advisor

Jim Long has over 25 years of experience as an adviser and investor across the power, energy, infrastructure, environmental, and technology sectors. Jim works closely with companies and investors to identify strategic opportunities in global markets and craft client-specific solutions. He brings a wealth of cross-border transaction experience, helping both larger corporations optimize their business portfolios and leading growth companies toward value-added partnerships with leading companies and investors, utilizing a full range of capital and financing alternatives in support of client objectives.

Prior to joining Greentech, Jim was a Managing Director at Ecofin, a leading specialist investor in utilities, renewable energy, and infrastructure. He led the private equity and infrastructure investment activities with over $500 million invested across wind, solar, water, and related sectors and over $750 million in realizations.

Prior to Ecofin, Jim spent 12 years at Citigroup in London in a number of roles, most recently as co-Chairman of Global Power and Utilities Investment Banking.

Jim has a Dual Degree in Economics (Wharton School) and English from the University of Pennsylvania. He holds both a Master of Philosophy and Master of Studies in Modern History from Oxford University, where he was also a tutor. He is a dual French and American national and speaks French, Spanish, and Italian.

Other Team Members