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
RisklyticsAI-Native Insurance for Frontier Tech	VerticalUses AI	San Francisco, CA, USA		Docs	Open homepage
RiverThe AI desktop.	VerticalUses AI	San Francisco, CA, USA		Docs	Open homepage
River MarketsPrime brokerage for prediction markets	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
RiverbankInfrastructure Cartography	VerticalUses AI	Boston, MA, USA		Docs	Open homepage
RivetRivet Actors are the primitive for stateful workloads	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
RMFGAdvanced Contract MFG for fast moving hardware companies	RoboticsUses AI	Fort Worth, TX, USA		Docs	Open homepage
RobocurveEvals for robots	RoboticsUses AI	San Francisco, CA, USA		Docs	Open homepage
RoboDockRobots that run autonomous depots for autonomous fleets.	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
RocketLitRocketLit is an adaptive learning and assessment platform.	OtherUses AI	Los Angeles, CA, USA; Santa Monica, CA, USA; Remote		Docs	Open homepage
ROGERThe Best Way to Sign Contracts Since Handshakes. Roger that.	OtherUses AI	New York City, NY, USA		Docs	Open homepage
RomeThe marketplace for truckers	VerticalUses AI	San Francisco, CA, USA		Docs	Open homepage
RonanRx Inc.Full Stack Pharmaceutical Company for Personalized Peptides and GLP-1s	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
RoofrSales software for roofers. Aerial measurements + proposals in seconds	OtherUses AI	San Francisco, CA, USA; Remote		Docs	Open homepage
RoutableSimplifying payouts at scale	OtherUses AI	San Francisco, CA, USA; Remote		Docs	Open homepage
RulebricksAdd powerful decision-making capabilities to any automated workflow.	OtherUses AI	San Francisco, CA, USA; Los Altos, CA, USA		Docs	Open homepage
Ruma CareThe operations stack for biologic infusion clinics	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
RuneTalk & play multiplayer games with your friends!	OtherUses AI	New York City, NY, USA		Docs	Open homepage
RunRLReinforcement learning as a service	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
RunwayEasier and more reliable mobile app releases for teams.	OtherUses AI	New York City, NY, USA; New York, NY, USA; Remote	1 open	Docs	Open homepage
RutterThe Unified API for Business Financial Data	OtherUses AI	New York City, NY, USA		Docs	Open homepage
RysticAPI simulators for testing and training agents locally	AI infraUses AI	San Francisco, CA, USA		Docs	Open homepage
RyvnEasy and secure customer cloud deployments	OtherUses AI	New York City, NY, USA		Docs	Open homepage
s2.devAPI for unlimited, durable, real-time streams	OtherUses AI	San Francisco, CA, USA		Docs	Open homepage
SaccadeWorld's Earliest Test for Alzheimer's Biomarkers	VerticalUses 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.