Company universe, page 191

Rindler turns any website, including sites without APIs, into a deterministic API that AI agents can reliably use. It handles logins, 2FA, and bot detection, giving agents clean structured data and dependable actions instead of raw HTML, with robust maintenance when sites change. Rindler is agent-agnostic and built on the open MCP standard, so it works with any agent. For operators: get your team out of portals and back to the work that matters. For agent builders: let your agents act on the rea

ringblingz has created a ring, that notifies you (with a light or vibration) when a friend gets in touch.

source-backed company entry

B2B Data - Driven Development and manufacturing automation platform

Rinse is building the One Medical for dental. Beautiful studios, easy to book same day appointments, and anxiety-free care focused on prevention, not the upsell.

Software to run car washes moving to a monthly subscription model

Rio is the premier stablecoin liquidity provider for the LATAM market. We enable access to stablecoins for financial innovators to scale their products.

We buy and grow D2C brands in LatAm

Riot is a SaaS platform to easily set up a cybersecurity awareness program for teams. We're making tools to protect your employees, and therefore protecting your company.

Geopolitical Risk, Predicted.

Ripl is a mobile app that helps small business owners easily create eye-catching animated posts to share on their social media pages

source-backed company entry

Ripple is an all-in-one marketing platform that uses AI to help small brands plan and generate content, run ads, manage email and SMS campaigns, and gain insights from their data.

Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the first time ever, you can manage and automate every part of the employee lifecycle in a single system. Take onboarding, for example. With Rippling, you can hire a new employee anywhere in the world and set up their payroll, corporate card, computer, benefits, and even third-party apps

Geopolitical conflicts and natural disasters frequently expose the vulnerability of the American chemical industry. The reason? Production is centralized and fossil fuel-dependent. The solution? Localized production using an undervalued resource: biogas. The US produces enough biogas to make over $20 bn/y worth of chemicals, but 60% is wasted in low-margin applications or flared altogether. Rise Reforming is commercializing a modular process to transform this underutilized biogas on-site into ch

Creating the world's best mobile robotic components

Digital wealth manager connecting Africans to global dollar investments.

Risely’s AI agents will form the new operating system for universities, improving retention, staff productivity, and efficiency. Our platform integrates directly into existing university systems (SIS, LMS, CRM), learns each institution’s unique workflows, and deploys specialized AI agents. This dramatically reduces the $735 billion universities spend annually on administrative labor, expands staff capacity without increasing headcount, and improves the student experience. This hasn't been done b

RiskAngle delivers fast, accurate summaries of unstructured medical records for insurance companies and law firms. Our AI-powered platform enables users to streamline underwriting, expedite claims processing, and prepare cases with confidence.

RiskCube is an independent commercial insurance brokerage for startups and high-growth companies (F24). When you're days from closing an enterprise customer and procurement asks for a Certificate of Insurance (COI), a traditional broker can take weeks — and the deal stalls. RiskCube fixes that: we compare 40+ AM Best-rated U.S. carriers, pair that with licensed human broker review, and bind the right coverage and issue your COI within a day, not weeks. Founders get D&O, Tech E&O, Cyber, General

Risklytics builds AI risk models that score natural disaster risk property by property, so insurers can write the good risks hiding inside 'high-risk' zones instead of declining entire ZIP codes. One API call returns the risk score, the drivers behind it, and the cheapest retrofit path to insurability.

RAML helps FinTechs accurately, efficiently and securely assess their money laundering risks, and create a risk based compliance ecosystem driving time and costs reduction ordinarily associated with AML compliance.

Want to apply AI to your IT Helpdesk queue? Risotto helps you grant software access, limit access/permission grants by time, serve knowledge, and get approvals from people like managers. All using natural language directly in chat (AKA "ChatOps") IT teams spend too much time manually provisioning software and answering the same question repeatedly. We help them improve resolution times, reduce SaaS spend, and enhance security with 24/7 automated software access and IT support. Check us out at: h

Ritivel is an AI-native workspace for regulatory and medical writing teams at life sciences companies. Our AI agents draft CTDs, CSRs, INDs, and BLAs in minutes instead of weeks, helping drugs reach patients faster. Every month a drug is delayed from reaching the market costs pharma companies ~$45M in lost revenue and more importantly, delays treatment for thousands of patients who need it. Yet regulatory teams are stuck in a painful, months-long process: synthesizing thousands of pages of clini

source-backed company entry

American-made rare earths, produced from wastes

source-backed company entry

A health and wellness plan for young adults

River Markets is the prime brokerage for prediction markets. We aggregate every major event-contract venue into one account, giving professional traders best execution, portfolio and order management systems, and a unified API.

Riverbank is an ex-NSA and DoD team creating the first AI native offensive red team, starting with the $3B pentesting market. We blend AI agents with experienced human operators to find what traditional vulnerability scanners miss and break through organizational cyber defenses with swarms of AI agents.

Riverr provides a new way to collect, organise and activate data for meaningful impact.

Enables European SMEs scaling decarbonization technologies to monetize their impact with a platform

Rivet is a visual AI editor for product designers to make UI changes. Designers ship the changes they make directly to their codebase. The most painful problem for designers today is that their vision doesn't match code. Rivet replaces slow collaboration between designers and engineers by letting designers just do it themselves. Rivet's editor helps turn product designers into design engineers. Design-led companies in YC are Rivet customers. Learn more at rivet.design

Software that helps artists and content creators understand and nurture fan relationships to sell more valuable content and products.

Riveter fully automates web data extraction, end to end. With a single API, agents can search, scrape, and structure data from the web. Customers like Snapchat and OpenAI use us to enrich datasets using Riveter's AI search agents that combine data from the web with third party or internal data. Their AI agents, custom scrapers, and integrations pack the power of browser use and automation for search, at a cost that allows for scale. You can even create a custom data API for repeated searches liv

Rivia.ai empowers marketing, sales, and demand generation teams to effortlessly generate and distribute interactive product demos within 10 minutes. Potential customers of SaaS brands can now personally engage with these self-guided product stories without direct sales interactions. With our user-friendly platform and intuitive dashboards, teams can effortlessly capture, customize, enhance, and share their demos without sound technical expertise. These interactive demos can seamlessly integrate

Riviera builds AI Employees for Hotels. Our first agent is a hotel phone receptionist that lets hotels spend less time answering phone calls and more time helping customers. Our system handles front-desk inquiries, in-room dining orders, and reservations. It answers every question instantly and in any language, 24/7. We are solving a problem that older phone systems and IVRs can't: customers hate not being able to talk to someone immediately, but most travel businesses can’t dedicate additional

Riya Collective is building the first community-driven global…

source-backed company entry

RMFG builds and operates advanced, software-defined factories, manufacturing precision parts and metal assemblies for fast-moving hardware teams. Our vertically integrated software platform automates quoting, DFM, scheduling, and machine control, and allows us to ship faster and at lower cost than traditional shops. We build our own computer vision models, AI agents, and custom software to solve problems inside our manufacturing facility. Today we primarily build complex metal assemblies using s

AI-driven R&D partner matching platform for businesses and research labs.

RoadEO offers Road Quality Monitoring and Predictive Road Maintenance 2.0.

Roame is flight search engine design for credit card points and miles. We help travelers redeem their points for dream vacations in seconds rather than days. At Roame, we are on a mission to revolutionize travel and consumer finance. We stand at the intersection of travel tech and fintech.

Roark helps teams test, monitor, and improve their voice agents. Voice AI is exploding, but reliability is still the #1 challenge. Teams spend hours manually testing agents and still miss failures. In the last 6 months, Roark has processed over 10M minutes of calls, powering monitoring and simulation for teams across the Voice AI ecosystem (including YC companies). We close that gap by combining: 📊 Monitoring & Evaluation - 40+ built-in metrics (latency, instruction-follow, sentiment, etc.), cu

AI-cloud monitoring platform to prevent inpatient falls before they happen and to predict delirium in the ICU

Robby is an AI growth engine for home services businesses that uncovers revenue opportunities and collects additional data from every technician visit. Our AI combines customer and third party data to generate dozens of new leads every day, and then arms the technicians with talking points to increase close rates, giving GMs a single command center to manage and drive revenue. We have several paying customers that are each uncovering 6 figures in additional revenue opportunities every week. On o

Robby Technologies is building self-driving robots for last-mile delivery of food, groceries and packages. It was founded by two MIT PhDs in computer vision and robotics, selected into Y Combinator program in summer 2016, and featured by TechCrunch as one of the top startups. With the mission to make delivery affordable and convenient for everyone, Robby Technologies has partnered with major US delivery companies for pilot deliveries in the Bay Area since 2016.

Robin is an intelligent concierge - helping businesses source and secure amazing live experiences for their clients and employees.

Robinhood's vision is to enable each and every one of us to better manage his retirement plans.

source-backed company entry