"Defense" Startups in San Francisco
Every active San Francisco startup we index that carries the "Defense" tag.
About "Defense" startups in San Francisco
Our index currently lists 15 tech startups in San Francisco tagged "Defense" — a city×tag slice of the live directory, not every "Defense" company nationwide and not every San Francisco startup regardless of tag. 0% of this slice is hiring right now (0 of 15). Apply links on each profile go to the company's own site; we don't act as a middleman. "Defense" startups in San Francisco include AICE, Applied Electrodynamics, Inc., Arlo Industries, Basalt, and Capuchin. Categories represented here: Industrials, AI / ML, and Hardware. YC batches in this slice: S26, Sp26, F24, and S24, among others. Widen the view anytime: all San Francisco startups at /startups/location/san-francisco, or every "Defense" company nationwide at /startups/tag/defense.
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Frequently asked questions
How many "Defense" startups are in San Francisco?
Our index currently tracks 15 active tech startups in San Francisco tagged "Defense". Counts move as scrapers discover new companies and flag shutdowns inactive.
Which "Defense" startups are based in San Francisco?
Companies on this page include AICE, Applied Electrodynamics, Inc., and Arlo Industries, plus 12 more below. Each profile links to the company's site and any open roles we scrape.
How is this different from the San Francisco startups page or the "Defense" tag page?
/startups/location/san-francisco lists every indexed startup in San Francisco across tags. /startups/tag/defense lists every "Defense" startup nationwide. This page is the intersection — only companies that resolve to both San Francisco and "Defense".
Are these San Francisco "Defense" startups hiring?
0 of the 15 companies on this page currently have open roles in our jobs index.
How often is this list updated?
Automated scrapers refresh on the same daily cadence as the rest of the directory. The last index update was 2026-09-02.