History of GLG
1998
Gerson Lehrman Group (GLG) is founded in New York as a publishing company focused on sector-specific reports for investors.
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 experts – academics, scientists, and physicians – to write about industries undergoing massive technological or regulatory change.

1999
Mark, Thomas, and Alexander realize they have the opportunity to do much more than produce reports – they can fundamentally change the way companies conduct primary research.
2000
GLG begins hosting small meetings with biotechnology investors, physicians, and scientists over breakfast at the Yale Club in New York City.
2001
GLG expands beyond the healthcare and technology fields, beginning with a new practice to serve clients in Power and Energy, which later becomes Energy and Industrials.
2002
GLG continues expansion by region to better serve clients across the U.S., opening offices in San Francisco, Boston, and Los Angeles.
GLG also begins offering a broader array of products and services to clients, including curated meetings, surveys, and events. Alexander Saint-Amand becomes President and Chief Operating Officer.

2003
GLG opens its first office outside the U.S., in London, to be closer to major clients in European markets.

2004
Bessemer Venture Partners leads a $30 million investment in GLG to fuel expansion.
GLG opens offices in Chicago and Washington, D.C. With heavy investment, GLG creates the industry’s most technologically advanced and comprehensive compliance system. GLG’s systems and compliance oversight tools help experts manage conflicts and enable clients to implement their own protocols.
2004
Bessemer Venture Partners leads a $30 million investment in GLG to fuel expansion.
GLG opens offices in Chicago and Washington, D.C. With heavy investment, GLG creates the industry’s most technologically advanced and comprehensive compliance system. GLG’s systems and compliance oversight tools help experts manage conflicts and enable clients to implement their own protocols.
2005
GLG expands to Austin, Texas, where teams initially focus on supporting its 70,000 Network Members (experts).
GLG expands into Asia, opening locations in Hong Kong and Shanghai to better serve clients in Asia-Pacific markets and leverage local expertise.
2006
Alexander Saint-Amand becomes Chief Executive Officer. The company continues to expand beyond its financial services business, serving Fortune 1000 companies and professional services firms.

2008
Silver Lake Partners invests $200 million in GLG. GLG’s growth accelerates across industry verticals, and the company continues to develop its technology and compliance systems.
2009
With 700 employees, GLG continues to focus on growth – especially in international financial services – and executing in new client segments.
GLG expands its customer reach to serve law firms and life sciences companies. GLG opens an office in Beijing, its third location serving clients in Greater China.
2010
An increase in U.S. prosecutions of insider trading brings growing scrutiny to investment research. Clients increasingly turn to GLG for the value of its state-of-the-art compliance initiatives and programs.
2011
GLG has almost 750 employees worldwide, including 115 sales professionals, 275 research professionals, and nearly 20 employees in legal and compliance.

2012
GLG Social Impact launches, bringing GLG’s learning platform to the social sector as it begins supporting nonprofits with pivotal insights.

2013
GLG has more than 900 employees in 21 offices around the world and manages a global network of more than 375,000 leading experts.
2014
Alexander Saint-Amand becomes Chief Executive Officer. The company continues to expand beyond its financial services business, serving Fortune 1000 companies and professional services firms.
GLG formally launches GLG Institute for executives operating in increasingly complex business, regulatory, and technological environments. Members work with prominent chief executives, technologists, scientists, and policy leaders for intensive counsel, mentorship, and network building. GLG moves its global headquarters to One Grand Central Place in New York City. The company creates the GLG Social Impact Fellowship, its flagship Social Impact program, to give social sector organizations around the world access to GLG insights at no cost.

2015
GLG continues to expand its Network Membership, product offerings, and global presence. 2015 culminates with SFW Capital Partners making a $212 million strategic equity investment in GLG.

2016
GLG’s global network grows to more than half a million experts, the most diverse, dynamic, and senior membership of its kind.
2017
GLG garners record revenue and profit, accelerating expansion as it grows to more than 1,500 employees.
2018
Technology executive Paul Todd becomes CEO. GLG re-imagines its purpose statement: We bring the power of insight to every great professional decision.
2019
GLG pushes a new wave of growth powered by significant strategic investments, including $50 million in technology and related spending.

2020
GLG continues to innovate and deliver vital insights to clients throughout the COVID-19 pandemic, posting robust financials while offering pro bono services to hundreds of organizations working on pandemic relief and racial equity.
See how GLGers came together with the help of experts and each other as the pandemic struck
2021
GLG is recognized by the Human Rights Campaign Foundation’s Corporate Equality Index as a “Best Place to Work for LGBTQ Equality.”

GLG grows its market research teams and products.
GLG’s Network Membership surpasses 1 million experts, with thousands of new experts recruited every week.
2022
GLG opens its doors in Munich and Barcelona, offering enhanced client service teams and broader language capabilities to its European clients.
GLG moves into new and expanded spaces in Gurugram and Mumbai. GLG’s “Insights with Impact” report is recognized by Fast Company’s 2022 “World Changing Ideas Awards.”

2023
GLG celebrates its 25th anniversary.
