# Yisrael Gross

> Yisrael Gross is co-founder and CEO of ammune.ai and managing partner at TYH Investments. His public career spans startup community organizing, business development and API security. He founded YourStartApp, helped organize investor pitch events, co-founded L7 Defense with Doron Chema, and now writes about enterprise software distribution, financial discipline and AI infrastructure.

- **Role:** Co-founder and CEO at ammune.ai; Managing Partner at TYH Investments
- **Organizations:** ammune.ai, L7 Defense, TYH Investments, YourStartApp, Israel Cyber Group
- **From:** Jerusalem, Israel
- **Education:** MBA in Finance and Marketing, The Hebrew University of Jerusalem, Ono Academic College
- **Known for:** Co-founded L7 Defense, the company behind the Ammune API-security platform., Helped organize investor and entrepreneur gatherings, including Between Valleys and Pitch Tonight., L7 Defense announced a $4 million Series A in January 2021, led by TRUMPF Venture with participation from Quick Heal Technologies.

## Career timeline

- **2014** — YourStartApp hosted Between Valleys at Google’s Tel Aviv Campus on April 23; Gross organized the annual investors and entrepreneurs event later that year.
- **2015** — Co-founded L7 Defense with Doron Chema.
- **2016** — Co-organized Pitch Tonight at the Hebrew University of Jerusalem, where startups received 100 seconds to pitch.
- **2019** — L7 Defense participated in EIC corporate meetings in Hamburg; Gross also co-produced a CyberTogether event.
- **2021** — Identified as co-founder and VP Business Development when L7 Defense announced a $4 million Series A.
- **2022** — Participated in GISEC in Dubai; Gross later reported winning the company’s first Dubai customer one month afterward.
- **2023** — Selected for the Israel Export Institute’s 65 ambassadors campaign.
- **2025** — Announced a Jerusalem office and described returning to the city where he was born and raised.
- **2026** — Identified as CEO of ammune.ai in its May AI-governance launch announcement, and as founder and managing partner of TYH Investments in a June article.

## Achievements

- Co-founded L7 Defense, the company behind the Ammune API-security platform.
- Helped organize investor and entrepreneur gatherings, including Between Valleys and Pitch Tonight.
- L7 Defense announced a $4 million Series A in January 2021, led by TRUMPF Venture with participation from Quick Heal Technologies.
- Chosen for the Israel Export Institute’s 65 ambassadors campaign in 2023.

## Latest updates

- **2026-06** — Published a LinkedIn article about technology, private markets and power; signed it as founder and managing partner of TYH Investments and CEO of Ammune.ai.
- **2026-05** — Ammune.ai announced an AI Governance Platform on May 25; the release identified Gross as CEO.
- **2026-05** — Published an article on May 21 arguing that enterprise customer acquisition is a harder constraint than software production.
- **2026-05** — Published an article on May 5 about AI economics, operational control and infrastructure efficiency.

## Links

- LinkedIn: https://www.linkedin.com/in/yisraelgross
- Facebook: https://www.facebook.com/yisrael.gross.9

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Profile page: https://yespress.io/yisrael-gross
Published by YesPress — https://yespress.io
Last updated: 2026-10-08