Our Team

The Co-Founders of B Lab, Jay Coen Gilbert, Bart Houlahan, and Andrew Kassoy, share passion for creating a better world through business and have been friends for over 20 years. Prior to B Lab, Jay and Bart were Co-Founder and President respectively, of AND1, a $250 million basketball footwear and apparel business. Andrew spent his career as a private equity investor; most recently as a Partner at MSD Real Estate Capital, a $1 billion real estate fund controlled by MSD Capital, the investment vehicle for the assets of Michael Dell and the Michael and Susan Dell Foundation.

Our team members stem from a wide variety of backgrounds in the public and private sectors across the globe. Click around and get to know us.

Hubertine Roessingh

Co-Executive Direcor

Nathan Gilbert

Co-Executive Director

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Nathan Gilbert

Co-Executive Director

Which office do you work from: 

New York

Alma Mater: 

Indiana University, The New School

Home Town: 

Lexington, MA

Before B Lab I...: 

Served in the Peace Corps in Ukraine and went to graduate school

When I am not working I enjoy...: 

Hiking, biking, yoga, cooking, and writing a food blog called 26 Meals.

Interesting or random fact about me: 

I met the President of Bulgaria at a pig roast in the Rila Mountains and met the President of Paraguay in Queens, NY

Favorite place I've traveled?: 

The Balkans (Bulgaria, Serbia, Macedonia, Kosovo, Croatia, and Bosnia)

Office Phone: 

212-608-4150

Email Address: 

nathan@bcorporation.net