Startups

AI startups worth watching

Companies that enable AI — models, agents, infra, robotics, energy, and verticals.

Listed after a verified homepage and sources. No invented size or price.

Directory
Name	Short description	Category	Region	Sources
Simplify Open homepage		Vertical	San Francisco, CA, USA	Docs
Simploud Open homepage		Other	Israel	Docs Gigasheet
Simreka Open homepage	Accelerating Innovation in Chemicals, Materials & Manufacturing through AI-Powered R&D.	Vertical	Utrecht, Netherlands	Docs
Singer Instruments and Control Open homepage		AI infra	Israel	Docs Gigasheet
Singular Bcp Open homepage		Other	Israel	Docs Gigasheet
Sinopia Technologies Open homepage		AI infra	Israel	Docs Gigasheet
Sion Technologies Open homepage		Vertical	Israel	Docs Gigasheet
Sira Open homepage	Your AI HR Manager - Time tracking, scheduling and HR Automated.	Vertical	San Francisco, CA, USA	Docs
Siraj Technologies Open homepage		Other	Israel	Docs Gigasheet
Sircleit Open homepage		AI infra	Israel	Docs Gigasheet
Sirica Open homepage		AI infra	Israel	Gigasheet Docs
Sitaro Open homepage		Other	Israel	Gigasheet Docs
Sitata Open homepage	Sitata combines real-time threat intelligence, travel insurance, and instant assistance to protect travelers in 220+ countries. Learn our story.	Vertical	Kitchener, Ontario, Canada	Docs
Site123 Open homepage		Other	Israel	Docs Gigasheet
Sitefire Open homepage		Agents	BY, Germany	Docs
Sitl Technologies Ltd. Open homepage		AI infra	Israel	Docs Gigasheet
Sivan Design Open homepage		Other	Israel	Docs Gigasheet
Sivo Open homepage	Sivo enables platforms and fintechs to access instant payouts, programmable debt capital, and embedded finance infrastructure through APIs.	Vertical	Vancouver, BC, Canada; San Francisco, CA, USA; Remote	Docs
Sivron Open homepage		Other	Israel	Docs Gigasheet
Sixdof Space Open homepage		AI infra	Israel	Docs Gigasheet
Sixgill Open homepage		AI infra	Israel	Docs Gigasheet
Sixtyfour Open homepage		AI infra	San Francisco, CA, USA	Docs
sizeless Open homepage	Automatisierte Dokumentation für den Tief- und Rohrbau	Vertical	San Francisco, CA, USA	Docs
Skiller Games Open homepage		Other	Israel	Gigasheet Docs

Staff list a company after a homepage 200 and one to three sources. Map pins use a sourced city or region — near that place or at the region centroid. Unknown location stays list-only. Founders, exit, and jobs stay omitted unless sourced. Founder photos stay omitted unless a sourced URL is listed — we never invent a face. We do not invent people, a street address, or size, price, or growth figures.