We help distributors and retailers turn catalog chaos into launch-ready products. Share vendor data, pull online specs and pricing, fuzzy match to your database, generate images, and output products in your exact schema.
We builds foundational AI models for chemistry. Almost nothing you buy is a single chemical. Products like datacenter coolant, GPU thermal paste, paint, and glue are formulations, which are mixtures of around ten ingredients each, and demand for them has grown quickly because of AI and EVs. Designing a new formulation is essentially a search problem, because there are more possible mixtures than anyone could ever test, and none of them can be predicted in advance. As a result, bringing a single formulation to market today takes three to five years of trial and error in a lab. Our models predict how a mixture will behave far faster than the standard methods used today, which lets us design new formulations in weeks rather than years, at a fraction of the cost. To prove this, we used them to invent three chemicals that never existed before, including a PFAS-free coolant for datacenters, and we have since synthesized and patented all three. We are already working with some of the largest manufacturers to design formulations for them, and we are building our own lab to generate the data that will train our next models.
ReJot is building Fragno to let API companies go from simply exposing an API to offering drop-in integrations that work out of the box. Fragno is an open‑source framework for packaging backend endpoints, data storage patterns, and frontend utilities into reusable building blocks. API providers ship full integrations, not just low‑level SDKs and docs. Customers configure rather than write code, so integrations are both much faster to launch and far more consistent across customers.
Our Mission: We aim to accelerate and automate chemical process development by equipping wet-lab chemists with the power of data-driven optimization and robotic execution of experiments. The Problem: The discovery of novel pharmaceuticals is one of our most important weapons in fighting disease. However, the drug development pipeline is often held up for many months during the design of chemical processes to manufacture these drugs at scale, delaying FDA trials and lengthening the time until drug launch. Designing chemical processes involves the identification of suitable parameters such as catalyst/temperature/solvent. Currently process development is often done via tedious trial-and-error experimentation (slow) or exhaustive screening (expensive and wasteful). Our Approach: In our research, we have developed algorithms for chemical process optimization, which leverage transfer learning and Bayesian optimization. We validated the algorithms in the wet lab, showing an up to 95% reduction in required experiments and cost compared to exhaustive screening. We have made our approaches accessible to chemists through our user-friendly no-code software platform and to automated laboratory equipment with our API.
Read Bean helps intermediate-advanced language learners and heritage speakers improve their literacy using real-world content. The app measures your initial reading level and automatically transforms texts into bite-sized lessons at your level. It adapts to your progress, reinforcing vocabulary and tailoring content to ensure continuous improvement.
RealPact builds AI agents that handle the paperwork behind real estate transactions. They find property records like deeds, tax records, permits, parcel data, and MLS information, then use that data to fill out contracts, organize documents, track deadlines, and help brokerages close deals faster. We are starting by automating transactions and will expand into other parts of brokerage operations. Much of the software used across the real estate industry is outdated. With today’s advances in AI, we can build agents that handle this operational work and create modern software around how brokerages actually work. We currently sell to brokerages in New Hampshire and are expanding quickly.
This is where real friendships begin. Women use our mobile app to talk to Lisa, our AI matchmaker, and get set up for fun social experiences with compatible new friends, all planned and coordinated by AI.
ReasonBlocks is the runtime layer that makes AI agents cheaper and more reliable. We correct agent reasoning and compress tokens mid-run, with gains compounding across runs. On SWE-Bench pro we have seen a 52% token reduction and 42% accuracy lift.
RecordBook is one stop solution to manage all business DATA, WORKFLOWS & TEAMS for Small and Medium Businesses on their mobile devices & in their local languages.
We are building an autonomous robot to precisely eliminate weeds and leave crops untouched. Despite $100 billion being spent annually on weed control, weeds still cost the US economy $46B/year. Weeds steal sunlight and nutrients from crops, forcing farmers to choose between higher costs and lower yields. Moreover, many farms still rely on hand labor to control weed growth. The process is slow, expensive, and increasingly difficult due to constant labor shortages (1 out of every 5 US farm positions go unfilled each year). Our robot nicknamed the Field Hand is able to automate one of the worst jobs on a farm and will help healthily feed the world.
Red Queen Bio is an AI biosecurity company that develops AI technologies and integrated wet-lab systems to defend against biological threats. It utilizes a 'defensive co-scaling' approach to map AI-enabled biothreats and pre-build medical countermeasures using leading AI models, lab automation, and reinforcement learning. The company operates as a Public Benefit Corporation, partnering with governments and biopharma firms to create scalable defensive infrastructure.
RedBrick AI's mission is to accelerate the adoption of artificial intelligence in radiology by building world-class software infrastructure. Currently, we are focused on helping radiology AI teams prepare high-quality datasets to train their algorithms. Radiology data, such as CT and X-ray scans, is an incredibly important source of truth in healthcare delivery. In fact, over 90% of all healthcare data is medical imagery! However, the global radiology workforce is overburdened. In the UK, for example, only 2% of radiology departments are able to fulfill their reporting requirements, and this trend is reflected worldwide. The acute state of radiology, coupled with the abundance of data, makes the use of AI in radiology a prime candidate. In 2022, $5.6 billion was invested in the development of AI in healthcare! However, a key hindrance to further adoption is the lack of sophisticated tools to build and deploy AI algorithms in clinical environments. This is the problem we’re focused on at RedBrick AI We're a team based out of Bangalore India, and USA. We're backed by leading institutional investors like Y Combinator and Peak XV (formerly Sequoia Capital India).
Redapto builds self-improving systems for customer support teams. Its software reviews support conversations to catch SOP gaps and hallucinations that manual QA misses, with the goal of improving CSAT and net revenue retention and driving repeat purchases and referrals.
Redouble AI is the solution to scale human-in-the-loop for AI workflows in regulated industries. Instead of having to rely on slow and expensive human reviewers, Redouble’s clients save 80% of staff costs and significantly improve the accuracy and quality of their outputs by integrating our tool into their workflows. Addressing an $11BN market, the company is already generating revenue with its first set of clients. The founders are two serial entrepreneurs (who have built successful companies in AI and health-tech respectively) and a data engineering veteran who has written more than 120 enterprise-grade software applications.
Redoubt is a commercial insurance agency for small businesses. We believe our customers are our most important business partners, and they deserve our full attention. Machines can already handle the boring parts, the next step is to continually learn from experience.
We rewrite and optimise your internal documentation for AI, giving it deep enterprise context. This unlocks substantially better LLM results across all AI workflows. PROBLEM: -------------- • AI teams struggle with LLM accuracy building AI workflows and agents because of messy, conflicting, fragmented internal knowledge. • Internal knowledge conflicts, uses undefined jargon and rely on unstated company assumptions & context. • LLMs are like Day 0 fresh hires – they can’t understand this documentation properly without someone explaining context to them. • Furthermore, vector search suffers from poorer retrieval accuracy when company context and terms are not present in a knowledge article WHAT WE DO ------------------- • Clean & De-Conflict: Our AI agents read every doc, resolve contradictions, and builds content relationships. • Context Distillation: Our AI agents read & compare related docs, distills context and rewrites an LLM-optimised version of your internal documentation. Optional human-approval ensures 100% confidence in the output. THE OUTCOME ---------------------- • Agents and chatbots that actually understand your enterprise context. • Retrieval that delivers precise, policy-aligned answers on the first try. • A living knowledge base that stays synchronized with every new doc revision.
Reframe deploys AI agents to manage overseas hardware manufacturing. Our Agents can understand your build matrix, coordinate waterfall schedules with supplies, and negotiate pricing, ensuring that your parts won't miss the next build.
Building RL environments for coding and computer use.
Relate is a modern Sales and Marketing CRM platform for B2B companies.
Nearly 7 billion hours are spent on porn every year. Relay provides a modern solution to one of the most widespread yet hidden epidemics of our time: pornography. Despite being one of the biggest drains on focus, relationships, and mental health, it remains one of the most silent and stigmatized problems in society. We are tackling this head-on. Relay helps people break free through private, anonymous groups that provide accountability and community. Members join a small, confidential team that replaces isolation with connection, offering shame-free accountability, evidence-based tools, and daily reflection. Our mission goes beyond quitting porn. Relay exists to help people heal the isolation and pain that drive destructive habits—so they can rebuild intimacy, reclaim focus, and live with greater connection, purpose, and wholeness.
Relevium Medical is developing an injectable gel for knee osteoarthritis. Approximately half the population will be diagnosed with this pain and progressive disease. Right now, patients have to undergo not only repeat injections to control their pain, but also have to take strong oral medications. Because the disease is progressive and only gets worse over time, many patients end up on highly addictive, high-dose opioids. To date, we have secured $3.7 million in non dilutive funding and completed preclinical testing. We demonstrated that our drug is safe, selectively blocks nerves that transmit pain, and provides pain relief that lasts four times as long. Insurance currently pays $770 per six-monthly treatment for knee osteoarthritis. With 5 million patients in the US, this represents a $7.7 Bn market opportunity. This platform biotherapeutic can also be used to treat other joints affects by osteoarthritis such as the hip and ankle, where the same problems exist in treatment care.
Relvy provides AI-powered debugging notebooks that help software engineers investigate and resolve incidents faster. It finds the root cause in over 70% of alerts automatically, and when it doesn’t, engineers can easily guide or correct the investigation - saving valuable time across the team.
Remedial Health sells medicine wholesale to the 1 million pharmacies and hospitals in Africa. Today in Africa, pharmacies shop in open-air medicine markets where they pay higher prices for counterfeits medicines. We offer a managed marketplace with all the stock they'll need, deliver within 24 hours and offer credit to help them grow.
We find roofers more roofs, and homeowners the right roofer. There are over 80 million homes in the US, and eventually, every one of them will need a new roof. Our technology allows contractors to focus on what they do best—getting a repaired roof over homeowners' heads quickly.
Remix is the easiest way to create content with AI. Connect your accounts, drop in photos, voice notes, or messages, and Remix instantly creates posts in your style: articles, tweets, carousels, short-form videos, even content riffing on the latest trending formats. Chat with 100s of parallel AI agents that handle everything from picking your best photos to writing copy to applying edits, all at once. Instagram was the easiest way to create photos on mobile. Remix is the easiest way to create everything else. Try it for yourself. Download the app and we'll instantly generate content from your LinkedIn and Twitter.
We're building flexible automation for warehouses. Our robots automate operationally-intensive, high-dexterity tasks using a proprietary model that draws on the latest architectures in robotic learning. Our custom training pipeline learns new tasks with less data than vanilla VLA fine-tunes, and our unique hardware design operates robustly in the most demanding warehousing environments. Today, 80% of warehouses have zero automation. Not because solutions don't exist, but because existing systems are expensive, rigid, and bulky. Despite there being an automation solution for virtually every warehouse task, the vast majority of facilities can't justify the cost or the operational overhead of deploying them. We're building robots that change that: flexible, adaptable machines that slot into existing work stations, bringing brownfield automation to the millions of facilities the last 20 years of warehouse automation has left behind.
RentAHuman operates a marketplace where AI agents and businesses can hire humans for physical, real-world tasks. Listed tasks include store audits, product testing, event staffing, and marketing campaigns that require in-person presence, with the platform handling payments and task management.
90% of security breaches are caused by a simple employee mistake. Your employee clicks a bad link, and gives up their password. They download ransomware from an email and run it. They leak your intellectual property and sensitive customer data to ChatGPT. Repacket allows your employees to enjoy the internet without risk - instantly blocking threats like phishing and sensitive data leaks. This gives your employees the ability to make that mistake without impacting your company. Repacket is built for smaller companies, who may not have dedicated IT or security people to run the show. We install in 60 seconds and give your employee instant protection where they need it most. Founded by cybersecurity leaders from SpaceX, AWS, and Google - we're building the easy button for cybersecurity.
Repaint lets you build professional websites by chatting with AI. It interviews you and searches information to plan your website. Then it builds it. You can edit anything through AI chat, and directly publish to a custom domain. It lets non-coders build sites without learning coding or a heavy design tool. Our vision is to make a new type of software creation that's accessible to the masses.
Replicate provides a cloud platform that lets developers run, fine-tune, and deploy open-source machine learning models using a simple API. It catalogs thousands of public models and charges based on usage, enabling teams to build AI features without managing underlying infrastructure.
Result is where the next generation of founders start and run their companies. In one place, you incorporate, open accounts, take payments, launch a product, and run the operational work of the business: marketing campaigns, customer support, content production, and growth experiments, with agents inside Result helping the founder do the work.
Automating call center operations at debt settlement companies, with AI that plugs into CRM, identifies debts to settle, and negotiates with creditors over the phone.
Reticular helps pharma companies discover drugs with AI models like AlphaFold by making them steerable, just like you can prompt LLMs. Today, limited validation data means companies spend millions on failed experiments trying to steer these models through trial and error. We’re piloting our AI interpretability technology with early-stage biotechs and scaling rapidly. Just a week after our pivot, we identified the first interpretable features ever found in protein models, allowing precise control over biological functions. Nithin and John met competing in Biology Olympiads before spending 4 years as roommates at MIT publishing ML/bio research in NeurIPS and Nature. We believe biological models encode far more information than anyone is currently using - our goal is to unlock this potential.
Retrofit is reimagining the future of secondhand shopping. We are a new vintage marketplace that uses AI agents to curate and personalize in-demand, trending inventory. We analyze social media trends, sales data, and personal style to find the best vintage pieces that fit an individual’s unique taste, size, and budget.
At Return Signals, we are building an AI-powered luxury concierge that proactively checks in with customers via SMS when their items are delivered. This high-touch experience drives 5–10% absolute margin uplift while improving CSAT and LTV. We improve e-commerce margins by intelligently recommending appropriate exchanges when customers are unsatisfied. Our texts achieve very high response rates (over 80% of eventual returns), and convert 70% of return intents into exchanges. All this without increasing the combined exchange and return rate. Because exchanges preserve revenue, our customers retain most of the original sale value. We achieve over 95% positive sentiment in our interactions (and almost no negative interactions), with many customers spending multiple messages thanking our bot and developing a personal relationship.
Revi helps Investment Banks, PE firms, and Corporate Development teams source new deals. We do this by using agentic workflows to replicate their end-to-end deal origination process, entirely removing the trade-off between precision and scalability. We released the first version of Revi in September 2023 and now have companies like KPMG and platforms backed by KKR and Nordic Capital using our product.
We are building tools for programmatic video creation. Revideo, our open-source framework, lets you create video templates in Typescript and render them via an API. It also provides a React player component to display changes in the browser in real-time.
RevisionDojo is building the AI study platform students actually obsess over. Our platform houses pre-loaded question sets, study notes, mini-lessons guided by an AI tutor that adapts to each student individually.
SixWheel makes diesel trucks hybrid-electric in 3 minutes at zero upfront cost while delivering $25k more profit per truck annually.
Rewbi uses AI to optimize grid-connected battery storage. We generate revenue by charging when electricity is cheap and discharging when electricity is expensive. We rent battery storage for a fixed fee per month, and we earn 2x that fee in monthly revenue by dispatching the battery optimally. Today, power companies use human traders to manually track grid conditions and update the battery’s dispatch schedule. However batteries can adjust their power output 100x faster than traditional power generation (e.g. hydro, coal, nuclear, gas), with the ability to go from full-speed charging to full speed discharging in under a minute. Electricity prices change every 5 minutes, often by 300% or more. Our AI better tracks 100s of live inputs, and it makes decisions faster than a human operator (with lower overhead!), improving revenue 2x.
At Rid we're determined to make selling easier than buying. All you have to do is text us what you're selling, and we'll take care of the rest -- researching the product, listing on marketplaces, negotiating with buyers, answering questions, and handling delivery. We all have that thing we've been too lazy to sell. Rid makes it so easy we can't even be lazy.
Rider is building modern parcel delivery for online sellers in Pakistan. We are doing $130K in monthly revenue, delivering 200K orders per month across 60 cities. Unlike traditional logistics players, Rider’s solution is: Easier to use (integration with shipper portals, delivery agent app, end- customer app); Quicker (route optimization, next day deliveries, 24-hour cash repayment); Transparent (resolves ‘fake attempt’ deliveries, offers live tracking) and Flexible (shipper and customer control on delivery location and times).
Ridge Biotechnologies uses proprietary machine learning models and cell-free datasets to design precision enzymes and targeted delivery systems for precision medicines. The company targets drug developers, providing a platform that enables differentiation through improved manufacturing and therapeutic indices. They focus on next-generation bioconjugates, protein design, and enzymatic therapeutics.
Intelligence will be the most valuable asset a company owns. Today, almost every company rents it. Companies pay a handful of labs one token at a time. Each dollar buys an answer, not an asset. They spend more, but own nothing more. Riften reverses that. Change one environment variable and Riften becomes the gateway for a company's AI traffic. We route each request to the lowest-cost model that can do the job, serving most work on open-weight models we host. Customers save money immediately without rebuilding their products. The gateway is the entry point. Over time, Riften turns the company's work into private models built on open weights and shaped around the business. What begins as cheaper inference becomes an intelligence stack the company owns, runs on infrastructure it controls, and uses to power its most important applications. We call this earned intelligence. It is created by the company's own work, controlled by the company, and accumulated over time. The next generation of companies will not rent their intelligence. They will earn it, own it, and compound it. Riften is how they get there.
RightNow AI is a research lab building GPU infrastructure that lets teams own their AI stack instead of depending on closed-source APIs. Our platform RunInfra takes any HuggingFace model, auto-generates optimized GPU kernels, and deploys it serverlessly with pay-per-token pricing RightNow AI lab: https://rightnowai.co RunInfra platform: https://runinfra.ai.
Rima helps accountants automate document and spreadsheet work with accuracy and provenance. For accountants that deal with messy docs and spend their time in excel, we enable them to describe to our agent in simple language what they do, and our agent does that work for them going forward, preserving their know how.
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 real web quickly, cheaply, and reliably on every run.
Rio is the premier stablecoin liquidity provider for the LATAM market. We enable access to stablecoins for financial innovators to scale their products.
RiskCube (YC F24) is an AI-native insurance brokerage built for YC founders and venture-backed startups. We simplify the complex U.S. insurance landscape—D&O, Cyber, E&O, General Liability, and more—with digital transparency and plain-English policy breakdowns. Need insurance for enterprise contracts? We provide multiple quotes from top-rated (AM Best A-rated) carriers, so you can meet vendor requirements and get certificates of insurance fast. Whether you're a Delaware C Corp getting your first policy, scaling a global team, or closing enterprise deals, we give you side-by-side comparisons, fair pricing benchmarks, and the right coverage—without overpaying or guesswork.
Risklytics is a commercial insurance brokerage for frontier tech: robotics, autonomy, data centers, and energy infrastructure. Insurers are writing AI exclusions into standard liability forms, so companies whose products act in the physical world end up holding risk they thought they had transferred. We specialize in that gap, and we know which carriers in the admitted and surplus lines markets will still underwrite it. If you're building anything that moves, lifts, drives, or powers something, we'd like to talk.