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	Status	Sources	Links
PapayaContinuous optimization for AI agents	AI infraUses AI	San Francisco, CA, USA		Docs	Open homepage
ParadeDBYou should just use Postgres.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
ParagonThe embedded integration platform for SaaS apps.	OtherUses AI	Los Angeles, CA, USA		Docs	Open homepage
ParameterSecurity builds trust. Strengthen both, all on one platform.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
ParametricPhysical businesses that run themselves	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
ParaQueryManaged GPU-accelerated Spark + SQL at 2x speed and half the cost	OtherUses AI	New York City, NY, USA; Remote		Docs	Open homepage
ParcelBioElevated mRNA for transformative medicines.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
PareaTest, evaluate & observe your LLM applications	AI infraUses AI	New York City, NY, USA		Docs	Open homepage
ParseBuild an API to interact with any website.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
PartclDesign a chip in minutes	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
PartnaUnlock African payments	OtherUses AI	Wilmington, DE, USA; Remote		Docs	Open homepage
PartySecure multiplayer workspace for teams building with agents	AI infraUses AI	San Francisco, CA, USA		Docs	Open homepage
PavePlan, communicate, and benchmark your compensation in real-time.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
Pave RoboticsRobots that repair roads	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
PAX MarketsCo-located trading facility and matching engine on one chip.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
PeerAI-native freight brokerage	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
PelagoThe world's first digital clinic for substance use management	OtherUses AI	New York City, NY, USA		Docs	Open homepage
PennantThe World Model for Corporate Governance	VerticalUses AI	New York City, NY, USA		Docs	Open homepage
PentagonThe control plane for agent-native work.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
Perit.AIExpert-led data and RL platform for AI labs	OtherUses AI	San Francisco, CA, USA	11 open	Docs	Open homepage
PerlaraPerlara: building the YC for rare disease parents	OtherUses AI	San Francisco, CA, USA; Oakland, CA, USA; Remote		Docs	Open homepage
Perseus DefenseAmerica's Golden Dome for Drones	OtherUses AI	Austin, TX, USA		Docs	Open homepage
PestoAsset-backed secured credit card, with infrastructure for brands to launch their own.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
PetcubePetcube is on the mission to improve lives of pets and pet owners…	OtherUses AI	San Francisco, CA, 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.