GLG is the World’s Insight Network.

We connect decision makers to the right experts so they can act with the confidence that comes from true clarity and have what it takes to get ahead. Our network of experts is the world’s largest and most varied source of first-hand expertise, and we recruit hundreds of new experts every day.

We bring the power of insight to every great professional decision.

Fast Facts

  • Founding: 1998, New York City
  • Locations: Offices in 13 countries: the U.S., China, India, South Korea, Japan, Singapore, Malaysia, Australia, England, Ireland, Germany, Spain, and UAE
  • Employees: Approximately 3,000
  • Network: Global and growing, with more than 9,000 new experts recruited every month.
  • Headquarters: New York City
  • Leadership: Gemma Postlethwaite, CEO
  • Ownership: Privately held


  • 40% of the Fortune 500 spanning across nearly every sector of the economy
  • 9 of the 10 largest global technology firms
  • 9 of the 10 largest pharmaceutical companies globally
  • 10 of the 10 largest law firms globally
  • 10 of the 10 leading banks globally
  • 800+ global private equity funds
  • 500 public equity investment firms
  • 80+ Social Impact Fellows

How We Help

GLG Direct

GLG Direct connects our clients with Network Members for a phone or video call so they can gain the insight they need to inform their business decisions.

Calls | Placements | Expert Witness

GLG Research

GLG Research provides access to the right target populations, helping you meet your research objectives on your timeline.

Surveys | Qualitative | Integrated Insights

GLG Syndicated Insights

GLG Syndicated Insights unlocks tens of thousands of archived transcripts, reports, syndicated surveys, and webcasts in addition to invitations to in-person or remote timely, trending, and interactive conversations.

Library | Events


As the category pioneer, GLG has led the industry in the establishment and development of compliance standards for expert networks. Our unparalleled compliance systems and technologies provide a structured, auditable, and transparent way for clients to receive actionable insights in a manner that is consistent with the highest professional standards and best practices. GLG’s proprietary compliance systems and technology are major competitive differentiators and a core component of our culture.

Contact Us

Enter your contact information and a member of our team will reach out to you shortly.
Thank you for contacting GLG, someone will respond to your inquiry as soon as possible.