Isengard Industries

Summary active Updated Aug 5, 2026

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Location San Francisco, CA
Founded 2026
Latest Stage Seed
Total Raised Undisclosed
Website https://isengardindustries.com
Sector
defense defense-tech autonomous-systems munitions counter-uas hardware deep-tech

Investors

Y Combinator seed (2026)

Founders

Francisco Serra-Martins Founder & CEO
James Tennant Co-Founder & CIO

About

Isengard Industries is a San Francisco-based defense technology company building AI-enabled precision strike systems and counter-drone (counter-UAS) platforms designed for scalable, sovereign manufacturing by allied nations 123. The company frames its approach as “Weapons of Mass Production” — enabling partner nations to manufacture precision-strike and counter-drone systems domestically at a fraction of legacy prime contractor costs 13. It was founded in 2026 by Francisco Serra-Martins (previously co-founder and CEO of Terminal Autonomy, which scaled to $60M revenue serving U.S. Army, NATO, and Ukrainian armed forces) and James Tennant (former Australian Army Officer and defense-tech private credit investor) 13. Isengard is part of Y Combinator’s Summer 2026 batch and employs approximately 30 people 1.

Disclaimer: This is a lean profile built from initial round coverage and may be expanded as more information becomes available.

Funding History

Date Round Amount Lead Co-investors
2026-08-04 Seed Undisclosed Backswing Ventures A3 Management Group, Y Combinator, Sterling Road, Serra-de Estrela Investments 23

Proceeds will support execution of the company’s growing contract pipeline, expansion of operational capacity, and establishment of a U.S. manufacturing base 23.

What Investors Say

No independently sourced investor commentary beyond press-release attribution at this time.

What Founders Say

No independently sourced founder quotes available at this time.

Sources

  1. Y Combinator, “Isengard Industries Inc: Mass-produced AI strike systems and Counter-UAS,” accessed August 2026. https://www.ycombinator.com/companies/isengard-industries-inc↩↩↩↩

  2. PR Newswire, “Backswing Ventures Announces Investment In Isengard Industries To Advance Next-Generation Munitions Manufacturing,” August 4, 2026. https://www.prnewswire.com/news-releases/backswing-ventures-announces-investment-in-isengard-industries-to-advance-next-generation-munitions-manufacturing-302841994.html↩↩↩

  3. Backswing Ventures portfolio page, “Isengard,” accessed August 2026. https://backswingventures.com/portfolio-work/isengard/↩↩↩↩↩