Gerson Lehrman Group is a New York-based company that offers professional education services. The firm connects its clients with independent contractor consultants with topical or industry expertise in a variety of fields (termed “Council Members”), as well as executive education, larger team training, and the placement of experts in long-term advisory, operational, and board roles. GLG has a network of over 800,000 freelance consultants

The firm was founded in 1998 and has been backed by private equity firms Silver Lake Partners, Bessemer Venture Partners, and SFW Capital Partners. GLG is headquartered in New York City, with offices in 22 cities in 12 countries.

Mark Gerson and Thomas Lehrman, both in their late twenties, raise $1 million to start the company. Alexander Saint-Amand joins as an editor during his senior year at college. GLG initially produces reports by engaging industry experts – academics, scientists, and physicians – to write about industries undergoing massive technological or regulatory change.

GLG’s clients include corporations, hedge funds, private equity firms, family offices, professional service firms, and non-profit organizations. GLG experts include consultants, physicians, scientists, engineers, lawyers, senior current and former c-level executives, and former government members.

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