# Gagnon Securities > Analysis by Optimly for Optimly AI Visibility, in the Optimly AI Brand Index. Last analyzed September 13, 2026. > Gagnon Securities is a privately held Registered Investment Advisor and Broker-Dealer based in New York. Founded in 2000, the company focuses on equity investing and manages money for clients in discretionary accounts on both a long-only and a hedged basis, employing a research-intensive, generalist approach for individuals and institutions. - Business Profile: https://optimly.ai/brand/gagnon-securities - Publisher: Optimly (https://optimly.ai) - Dataset: Optimly AI Brand Index (https://optimly.ai/brand) - Official website: https://gagnonsec.com/ - Logo: https://logo.clearbit.com/gagnonsec.com - Slug: gagnon-securities - Brand Authority Index tier: Emerging - Category: Equity Asset Management Firms - Last Analyzed: September 13, 2026