Investigation

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	Jobs
2bsecure@matrix Open homepage		AI infra	Israel	Docs Gigasheet	Open jobs
2key Network Open homepage		AI infra	Israel	Docs Gigasheet	Open jobs
2sens Open homepage		Other	Israel	Gigasheet Docs
2sign - Digital Signature Solutions Open homepage		Other	Israel	Gigasheet Docs
3 Door Digital Open homepage		Other	Israel	Gigasheet Docs
353solutions Open homepage		Other	Israel	Gigasheet Docs
365 Technologies Ltd Open homepage		Other	Israel	Docs Gigasheet
3ad Open homepage		Other	Israel	Gigasheet Docs
3base - Web Development Open homepage		Other	Israel	Gigasheet Docs
3co Open homepage		Vertical	Boulder, Colorado, United States	Docs	Open jobs
3D Continuum Open homepage		Vertical	San Francisco, California, United States	Docs	Open jobs
3d Sellers Open homepage		Other	Israel	Gigasheet Docs
3d-Innotech Open homepage		Other	Israel	Gigasheet Docs
3dny 3d Printers Ltd Open homepage		Other	Israel	Gigasheet Docs
3dodo Ltd. Open homepage		Other	Israel	Gigasheet Docs
3doptix Open homepage		Other	Israel	Gigasheet Docs
3dsignals Open homepage		Robotics	Israel	Docs Gigasheet	Open jobs
3plw Ltd. Open homepage		Vertical	Israel	Docs Gigasheet
3samnet Open homepage		Other	Israel	Gigasheet Docs
409.ai Open homepage	409.AI helps startups and private companies prepare expert-reviewed valuation reports: 409A, SMB, ASC 718, ASC 820, IFRS 2, QSBS, gift & estate tax, ESOP, UK EMI and CSOP, purchase price allocation, impairment testing, and IP valuations.	Vertical	Collingwood, Ontario, Canada	Docs
40nuggets Open homepage		Other	Israel	Gigasheet Docs
475 Cumulus \| Digital Product Development Open homepage		Other	Israel	Gigasheet Docs
4c Biomed Open homepage		Vertical	Israel	Docs Gigasheet
4Degrees Open homepage		Vertical	Chicago, Illinois, United States	Docs	Open jobs

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.