Builder

Tony Gentilcore

Tony Gentilcore is a co-founder and the product engineering lead at Glean, an enterprise AI platform that understands a company's knowledge, data, and expertise. From 2006 to 2016 he worked at Google as a senior staff software engineer, modernized the web search results page, and led the Chrome Speed Team, and in July 2010 he announced that Chrome 6 exposes Web Timing page-load metrics through window.webkitPerformance. With Arvind Jain, T.R. Vishwanath, and Piyush Prahladka, he co-founded Glean in 2019, and Glean Chat was ready to launch by June 2023 after ChatGPT launched in November 2022. As of October 2026 he is still product engineering lead; in August 2025 he wrote about AI sprawl in the enterprise, and in November 2025 he spoke on agentic systems.

Now at
Glean

Timeline

  1. 2006–2016

    Search and Chrome at Google

    From 2006 to 2016 he works at Google as a senior staff software engineer. He modernizes the web search results page, from the static ten blue links days into the JavaScript era, and founds and leads the Chrome Speed Team, which contributes to the HTML5 specification and helps form the W3C Web Performance Working Group. In July 2010 he announces that Chrome 6 exposes Web Timing page-load metrics through window.webkitPerformance.

  2. 2019

    Co-founding Glean

    In 2019 he co-founds Glean with Arvind Jain, T.R. Vishwanath, and Piyush Prahladka. The founders raise a $15.3 million Series A, and the team begins building enterprise search in stealth.

  3. 2021

    A public search launch

    In September 2021 Glean introduces an assistive search tool that pulls information from dozens of applications. In 2021 the company launches publicly with enterprise search already in use at 40+ companies.

  4. November 2022–June 2023

    Building Glean Chat

    In November 2022 he and two co-founders agree that generative AI will have a profound effect on Glean and that the company has to move fast. Glean Chat is ready to launch by June 2023, and the company renames it Glean Assistant.

  5. August 2025

    An essay on AI sprawl

    In August 2025 he writes about AI sprawl in the enterprise as co-founder and product engineering lead at Glean.

  6. November 2025

    A summit on agentic systems

    In November 2025 he and Salesforce COO Vivienne Wei explore agentic systems for large organizations at the Sierra Ventures CXO Summit.

  7. As of October 2026

    Product engineering at Glean

    As of October 2026, he is a co-founder and product engineering lead at Glean. Glean's enterprise AI platform helps people do their best work with AI that understands company knowledge, data, and expertise.

Sources and credits

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  1. Report: Glean Business Breakdown & Founding Story | Contrary Research research.contrary.com. Checked 16 October 2026.
  2. About Glean | Enterprise AI Platform for Work glean.com. Checked 16 October 2026.
  3. Do You Know How Slow Your Web Page Is? blog.chromium.org. Checked 16 October 2026.
  4. Glean's journey from workplace search to enterprise AI glean.com. Checked 16 October 2026.
  5. Glean Technologies - Wikipedia en.wikipedia.org. Checked 16 October 2026.
  6. How Glean delivered enterprise search in the AI landscape visionfund.com. Checked 16 October 2026.
  7. Tackling AI sprawl in the modern enterprise | TechRadar techradar.com. Checked 16 October 2026.
  8. Architecting the Agentic Enterprise with Tony Gentilcore, Co-Founder, Glean, and Vivienne Wei, COO, Salesforce Agentforce sierraventures.com. Checked 16 October 2026.