Colin Hall - CEO

Colin Hall is the Head of Investments of GBL and the CEO of Sienna Capital.

Previously, he worked at Rhône Group, a private equity firm.

Mr. Hall holds an MBA from the Stanford University Graduate School of Business.

Aurelie Comptour - CFO

Aurélie Comptour joined Sienna Capital in 2014 as CFO.

Previously, she worked at Ernst & Young Luxembourg.

Aurélie holds a master’s degree in Management from the University of Paris Dauphine and a master’s degree in Banking & Finance from the University Paris Descartes.


Vincent Noël joined Sienna Capital’s Luxembourg office in 2015 as Financial Accountant/Controller.

Previously, he spent five years working at GDF Suez in Luxembourg.

He holds a BA in Accounting from the Haute École Robert Schuman in Libramont-Chevigny, Belgium.