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Quary is the first analytics engineering platform that brings the entire model-test-deploy workflow into the browser. At our first customer, a fast-growing fintech company, Quary empowers analysts in the growth team to self-serve, contribute, and reduce reliance on the data engineering team, letting teams ship metrics faster & executives get answers sooner
London, England, United Kingdom1-50 employees
Query Vary is a no-code tool for building LLM-powered automation. Example use cases include extracting information from a sales call transcript and piping it into a CRM, creating a Slack bot trained on product documentation, or transforming Google forms into fully formatted reports. Input Software --> LLM --> Output Software Our extensive toolset to make each workflow reliable sets Query Vary apart. Book a demo: https://calendar.app.google/6oxEvZA2k4kK6dBa8
San Francisco, CA, USA1-50 employees
We are building the agent first sales platform that will power sales for every single company soon. Join us to revolutionize how sales are done in the agent era.
1-50 employees
Quetzal is the first fully LLM-powered translation and internationalization suite, enabling companies to translate and internationalize their software and content instantly with minimal setup. We also handle all of your internationalization issues, from managing all of your stakeholders to bringing your product and marketing to market. No more waiting days or even weeks for translated content! Deliver a perfect experience to your users in any language, instantly.
Oakland, CA, USA1-50 employees
Quill Bills is a medical billing company that works with healthcare providers to significantly lower billing costs and fight every denial.
San Francisco, CA, USA1-50 employees
Quindar is a web app used by satellite owners to analyze, test and operate their constellation. For example, Airbus could use Quindar to operate their satellite fleet with minimal human intervention. We’re six former OneWeb engineers who helped build the software platform that currently operates the second largest satellite constellation in the world. The space industry is shifting from companies launching a handful of satellites over a decade, to launching hundreds of satellites EACH in just a few years. Our SaaS platform automates mission management and for a single engineer to operate hundreds of satellites instead of the traditional model of many engineers operating a single satellite.
Denver, CO, USA1-50 employees
Quivr is an AI-powered customer support tool that helps teams draft responses, automate replies, and resolve tickets directly inside platforms like Zendesk or other helpdesk solutions. The platform augments agent productivity by reducing repetitive work and accelerating resolution time.
Paris, Île-de-France, France1-50 employees
RDash is an AI powered construction management software that unifies site teams, procurement, design and finance - out of box; Without requiring customer to stitch anything. We are fastest to deploy and compatible with most accounting and ERP tools.
Gurugram, HR, India51-200 employees
REV1 automates the creation of manufacturing-ready 2D drawings from 3D CAD files. Mechanical engineers spend 25%+ of their time manually creating these drawings, a tedious but critical step for every manufactured part. REV1 reduces that process from hours to minutes, generating drawings with proper annotations and tolerancing so engineers can focus on design instead of documentation.
San Francisco, CA, USA1-50 employees
We receive any product in 24h anywhere on the planet, but... Why can't we also return & get refunded just as quickly? REVER is a game-changing shopping experience that makes eCommerce returns possible in 2 clicks and refunds in 24h. The REVER team is shaping the future of eCommerce bringing frictionless, superfast and sustainable returns to everyone, anytime, anywhere. Because returning should be as easy as buying. REVER's ambition is to dominate ALL eCommerce post-sale services by creating the world's first global platform for online returns. REVER is currently handling +100M€ in yearly returns, with more than 50M€ in revenues If you are an eCommerce and want to revolutionise your returns experience find out more at: www.itsrever.com
Barcelona, CT, Spain; CT, Spain1-50 employees
ROE AI solve risks and compliance problems for financial industry.
San Mateo, CA, USA1-50 employees
Current Description: RTHM provides virtual-first care for complex illness including Long COVID, ME/CFS, POTS, and mast cell activation. Many clinics focus on teaching patients how to better cope with symptoms, which is helpful, but we don’t stop there. We develop collaborations & partnerships so our patients access to the most promising testing and root-cause directed early therapies for their illness(es) with the goal of simplifying and streamlining the most efficient and effective clinical pathways so they can be scaled in the form of low cost online modules overseen remotely by clinicians. In conjunction with clinical care, RTHM operates a clinical lab and collects deep molecular data with robust clinical context to develop AI-powered diagnostics and better ways of predicting which treatments may work best for whom.
Redwood City, CA, USA1-50 employees
We offer no-money-down installations that generate free money for homeowners from day one. We are digitalizing the whole process of going solar. Instead of using traditional forms and leaving it up to customers to fill them, we use technology to take all that burden off our customers plate. We only ask for an address and offer free instant quotes.
Santiago, Santiago Metropolitan Region, Chile1-50 employees
We’re building the AI copilot for radiologists, powered by a foundational model for medical imaging. RadMate AI will read radiology images and generate full reports for radiologists to review and submit. Mohamed and Adam are technical co-founders who met while studying Computer Science at Cornell University. Before starting RadMate AI to solve the problems his dad faced as a radiologist, Adam worked at Palantir on the initial launch of Palantir’s Al Platform. Mohamed has experience at AWS, where his goal was to help enterprises innovate on the cloud, and PathAl, where he worked on their image viewer platform to improve the workflow of pathologists.
San Francisco, CA, USA1-50 employees
Radical’s StratoSats are autonomous platforms that provide satellite-like services on demand. They fly within Earth’s atmosphere to provide persistent, high performance infrastructure across applications in earth observation, connectivity, and more. Unlike satellites, StratoSats navigate freely without the need for rocket launches or orbits - reducing costs, increasing flexibility, and ensuring customers get the targeted coverage they need.
Seattle, WA, USA1-50 employees
Ragie provides a fully managed RAG-as-a-Service platform for developers to build AI applications by connecting their own data sources (e.g., Google Drive, Notion, Confluence) via APIs; it offers an advanced RAG engine, multimodal ingestion, and an agent-ready MCP server for production-grade retrieval and deployment.
San Francisco$5.5M / $8.85M val11-50 employees
AI / MLAI InfrastructureAPI / PlatformSeed$1M-$10M
At Railbird, we are building a prediction market exchange designed to hedge and mitigate risk for the services sector. The Railbird team has years of experience analyzing companies in the service sector and has seen firsthand how little opportunity there is to hedge risk in volatile markets like hospitality, tourism, recreation, entertainment, and sports. The platform is designed to be open to all traders.
New York, NY, USA1-50 employees
Raina Biosciences develops GEMORNA, a generative AI platform used to design and optimize mRNA sequences for therapeutics. Targeting biopharma and biotech companies, the company leverages AI and high-throughput experimental validation to improve mRNA translational capacity, stability, and potency. They operate as a spin-out from MIT, focusing on accelerating drug discovery timelines for novel mRNA applications.
$5.7M / $1.4M val1-10 employees
Healthcare AIAI ApplicationAPI / PlatformSeed$1M-$10M
Monitor your AI agents the right way. AI engineers use Raindrop to get alerts about silent failures in their AI agents. Raindrop sends you alerts when your AI misbehaves and links straight to the events, so you can dig into the conversations or traces, understand the root cause, and fix it, fast.
San Francisco, CA, USA1-50 employees
Rainmaker is an account abstraction-based crypto wallet that makes DeFi investing simple and fast. Set up a wallet with just an email, instantly deposit funds from your bank or credit card, and invest in DeFi without gas fees.
1-50 employees
Rally is a financial platform for businesses that operate vehicle fleets. We're starting in Europe, where over €1 trillion is spent annually on fuel, charging, maintenance, and other fleet expenses - most of it still running on legacy networks built in the 1960s. We set a new standard for fleet finance by streamlining payments and automating workflows across bookkeeping, credit, and driver payroll, helping real-world businesses like delivery services, construction crews, and service technicians stay in control and operate efficiently.
Berlin, Berlin, Germany1-50 employees
For millions of Americans, taxes are far more than a simple W-2. Managing investments, property, or a side business creates a world of complexity that makes DIY software risky, while traditional CPA help is often slow, expensive, and reactive. This broken system causes anxiety and leaves billions in potential savings on the table every year. Rally is the modern solution for tax peace of mind. We are an AI-powered tax platform that provides proactive, year-round strategic guidance, not just seasonal filing. Our unique approach combines a smart platform that automates 80% of the manual work with a team of in-house experts to provide strategic advice. We deliver the expertise of a private advisor with the convenience and access of a modern tech company. Our vision is to use the trust we earn in taxes to become the definitive financial co-pilot for our customers. We will expand from tax strategy into a full suite of services that helps millions of people proactively manage and optimize their entire financial future.
Mountain View, CA, USA; Remote1-50 employees
Rally is a User Research CRM that makes it easy for teams to do research with their users. By automating outreach, scheduling, incentives, and participant management, Rally replaces messy spreadsheets and disjointed tooling, saving teams hours each week.
New York, NY, USA; Remote1-50 employees
Ralo is a mortgage platform built to deliver lower rates and lower fees by cutting out unnecessary intermediaries. We automate the complex work behind the scenes, from paperwork to pricing and negotiation.
San Francisco, CA, USA1-50 employees
RamAIn can intelligently automate any super complex and repetitive process across applications (Windows + Mac + Browser + Desktop) super-duper fast. It doesn’t matter whether you have API access or not - if you can see it, RamAIn can do it. Current CUAs all follow the same decision loop: screenshot, VLM, decision, repeat. This is expensive, unreliable and slow. We build infrastructure to pre-train CUAs on specific interfaces, effectively teaching RamAIn to use your computer.
San Francisco, CA, USA1-50 employees
Random Labs is building Slate. Slate is a coding agent designed to work with you for long hours on hard problems.
Moni finances small businesses in groups across Africa. The collective responsibility of the group serves as a collateral on the loan while the social pressure from the members ensures on-time repayment. There are over 44million SMBs in Africa. We launched 7 months ago and we already have $72k MRR growing at 50% MoM. We achieved 99% repayment on 11,000 units of loans with over $5M disbursed. This is 15 times higher than most financial services in Africa. Femi (CEO) worked previously with the World Bank with a focus on financial services while Dapo (CTO) led the development of the technology for one of the largest digital lending apps We are also backed by Y Combinator(W22), Magic Fund, Ventures Platform, Voltron Capital and more.
Lagos, LA, Nigeria; Remote1-50 employees
SEO & GEO is confusing and massively overpriced. RankAI will handle everything autonomously to drive you millions of visitors from Google and AI search like ChatGPT. RankAI first identifies search queries your customers already search for, then it builds search-optimized pages to capture millions of these queries. Finally, like a real agency, RankAI will track its results, rethink its strategy, and rewrite pages again and again to improve performance. RankAI does not stop until traffic swarms in.
San Francisco, CA, USA1-50 employees
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.
San Francisco, CA, USA1-50 employees
At Raven, we are building AI assistants for manufacturing plants which can offer intelligent assistance for day-to-day operations like training, job planning, troubleshooting, reporting and also helps with real-time analytics — all while seamlessly integrating with your existing systems. We’re taking decades of manufacturing expertise and combining it with AI to solve real operational problems. We’re a small, focused team working to make industrial operations safer, smarter, and more efficient.
Bengaluru, KA, India1-50 employees
Raycaster is an AI document workspace - think Cursor for regulated content, starting with life sciences teams to draft, edit, and review submissions much faster.
New York, NY, USA1-50 employees
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.
Amsterdam, NH, Netherlands1-50 employees
Reacher is an AI-powered platform that automates creator marketing workflows—from discovery and outreach to campaign management and content strategy—making marketing teams 10x more productive. We handle the manual tasks so brands can focus on building relationships with creators while centralizing their operations in one platform to manage creators on TikTok Shop, Instagram, and YouTube.
San Francisco, CA, USA; Remote1-50 employees
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.
San Francisco, CA, USA1-50 employees
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.
San Francisco, CA, USA1-50 employees
Readily uses AI to free 20 million healthcare professionals from manual compliance work so they can focus on patient care. We've helped $B healthcare organizations cut regulatory analysis, policy drafting, and audit work by up to 90%, reducing consulting spend and compliance risk.
San Francisco, CA, USA1-50 employees
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.
San Francisco, CA, USA1-50 employees
Reality Defender’s deepfake detection platform empowers enterprises to flag fraudulent users and content (audio calls, videos, images, documents). Our API and web app provides real-time risk scoring, reporting, alerts, and forensics review. Our team spent 20+ years at Google, Goldman Sachs, and the Intelligence Community at the intersection of data science and cybersecurity. Customer Use Cases: • Voice Voice Fraud (Ie. Realtime detection of AI generated voices for banks and call centers) • Onboarding KYC (Ie. Anti-fraud to identify fraudulent users and materials) • Content Moderation (Ie. Social media, e-commerce, marketplaces, dating, streaming) • Disinformation Detection (Ie. News, defense, government) Website: www.realitydefender.com Contact: ask@realitydefender.com YC AMA: https://news.ycombinator.com/item?id=30766050
New York, NY, USA51-200 employees
Go live in less than an hour. Accept local payments, subscriptions, and installments in LATAM with a checkout built to match your ambition. Engineered for companies that set the standard. With our platform and API, companies can integrate over 100 local payment methods from the region, including cards, bank transfers, cash, and even wallets. In addition, they always receive the best human support with fair pricing and utmost transparency, enabling them to scale across the region 10 times faster.
Buenos Aires, CABA, Argentina1-50 employees
Rebolt lets everyone in the company build apps, and agents by speaking with AI. Integrated with your company tools, data and authentication. Replacing no-code tools, bloated SaaS and complex spreadsheets, for automating all the boring work.
1-50 employees
The first version of RecipeUI was a viral project at Robinhood that reached 100% adoption from all engineering and QA teams. When an API broke, anyone from Frontend to QA to PMs could debug without relying on backend engineers
New York, NY, USA1-50 employees
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.
Remote1-50 employees
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.
1-50 employees
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.
$15M11-50 employees
Healthcare AIAI ApplicationInfrastructureSeed$10M-$50M
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).
Claymont, DE, USA; MH, India1-50 employees
Redbird is an AI-powered analytics platform for the enterprise - empowering anyone within an organization to easily automate and unify their analytics work in minutes, without writing code. Redbird connects to all of an organization’s data sources and accelerates analytics work across data prep, wrangling, analysis, reporting and data science.
New York, NY, USA
We are making reusable satellites for zero-g manufacturing. Our first full orbital recovery mission is set to launch in April 2026.
Atlanta, GA, USA1-50 employees
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.
San Francisco, CA, USA1-50 employees
Refactor works closely with large organizations across healthcare, retail, and logistics to safely tackle their most ambitious AI use-cases in record time. We focus on building autonomous systems that call, click, and navigate legacy software systems. We have worked with companies serving tens of millions of customers and with $50B+ annual revenue.
San Francisco, CA, USA1-50 employees
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.
San Francisco, CA, USA; Remote1-50 employees