Startups

Startups worth watching

Companies in any sector. A Uses AI tag appears when the listing records that the company uses AI.

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

13,040 companies

Directory
Company	Category	Region	Sources	Links
hillclimbTraining Data for Recursive Self-Improvement	VerticalUses AI	San Francisco, CA, USA	Docs	Open homepage
HilstartAutonomous Hardware Testing	OtherUses AI	San Francisco, CA, USA	Docs	Open homepage
HiOperatorCustomer support as a service.	OtherUses AI	Dallas, TX, USA; San Francisco, CA, USA	Docs	Open homepage
HireArtGives businesses everything needed to hire & manage W2 contractors.	OtherUses AI	New York City, NY, USA; New York, NY, USA	Docs	Open homepage
HiroAgents that handle security work	OtherUses AI	New York City, NY, USA	Docs	Open homepage
HlabsUS-Made Parts for Robots	OtherUses AI	Austin, TX, USA	Docs	Open homepage
HockeyStackThe operating system for inbound B2B revenue	OtherUses AI	San Francisco, CA, USA	Docs	Open homepage
HOKALIAfter School & Enrichment Activities Marketplace	OtherUses AI	San Francisco, CA, USA	Docs	Open homepage
Holy Grail	OtherUses AI	San Francisco, CA, USA; Remote	Docs	Open homepage
HOMLISell your home without brokers	VerticalUses AI	New York City, NY, USA	Docs	Open homepage
HonaPersonal Injury Legal Work - Automated	OtherUses AI	Orem, UT, USA	Docs	Open homepage
HoneyloveHoneylove makes functional undergarments for women	OtherUses AI	Los Angeles, CA, USA; San Francisco, CA, USA	Docs	Open homepage
Hop AeroRocket cargo delivery to contested environments	OtherUses AI	Los Angeles, CA, USA	Docs	Open homepage
HopperFast inference for voice	AI infraUses AI	San Francisco, CA, USA	Docs	Open homepage
hotglueNative user-facing SaaS integrations for your customers	OtherUses AI	Washington, DC, USA	Docs	Open homepage
HotplateOnline ordering platform for independent chefs and bakers.	OtherUses AI	San Francisco, CA, USA	Docs	Open homepage
Howdy.comWe help US tech companies hire and manage software engineers in LATAM	OtherUses AI	Austin, TX, USA	Docs	Open homepage
Hubble NetworkBluetooth to Space	OtherUses AI	Las Vegas, NV, USA	Docs	Open homepage
HUDPlatform and marketplace for RL environments and AI data	VerticalUses AI	San Francisco, CA, USA	Docs	Open homepage
HuduThe Most-Loved IT Documentation Platform	OtherUses AI	Fort Collins, CO, USA; Remote	Docs	Open homepage
HueTest agents in realistic worlds built from production usage	VerticalUses AI	San Francisco, CA, USA	Docs	Open homepage
Human DxThe Human Diagnosis Project.	OtherUses AI	San Francisco, CA, USA	Docs	Open homepage
Human InterestThe 401(k) for small and medium-sized businesses.	OtherUses AI	San Francisco, CA, USA; Remote	Docs	Open homepage
Humane GenomicsA platform to make artificial viruses as cancer therapeutics.	OtherUses AI	New York City, NY, USA; New York, NY, USA	Docs	Open homepage

Staff list a company once its homepage loads and one to three sources back it up. 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.