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Reflex is the operating system for building mission-critical enterprise applications. Today’s enterprise stack is fragmented. Shipping an app requires stitching together multiple tools and coordinating across multiple roles. Reflex replaces that complexity with a single, unified platform to build, deploy, and manage production applications end-to-end. We empower teams to own the entire lifecycle of their apps — from idea to production — without needing specialized infrastructure, DevOps, or platform teams. We do this by providing solid, reusable abstractions at both the framework and infrastructure layers. Because we own the underlying open-source framework and the platform it runs on, we can manage the full lifecycle of the application seamlessly. With Reflex, teams securely connect to company data, use AI to build standardized applications on top of our open-source framework, and deploy with a single click to share across their organization. We’re replacing the fragmented enterprise stack — and the organizational bottlenecks that come with it. Founded by Alek Petuskey and Nikhil Rao, Reflex has powered over 1 million applications, earned 28,000+ GitHub stars, and is used by 30% of Fortune 500 companies for internal tools and data-driven applications.
San Francisco, CA, USA1-50 employees
Reforged Labs Boa is the AI creative intelligence agent that answers all your questions about what ads are performing, why they work, and what to create next.
San Francisco, CA, USA1-50 employees
Automate freight operations from quote to cash without replacing your trusted systems.
San Francisco, CA, USA1-50 employees
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.
San Francisco, CA, USA1-50 employees
Building RL environments for coding and computer use.
San Francisco, CA, USA1-50 employees
rehook.ai is an all-in-one promotion engine. A complete stack which lets you run referral, loyalty, rewards, discounts, coupons, leaderboards, streaks, tiers etc and is flexible, trackable, scalable and secure. With an intuitive rule engine, marketers can simply add/edit/change rules to generate coupons/rewards/cashbacks or any other incentives. rehook.ai lets you experiment and personalize campaigns around user segments, geographies, demographics, journeys and any other attribute- without ever going back to tech.
Bengaluru, KA, India1-50 employees
Relari is building the infrastructure for trustworthy AI agents in the Software 3.0 era. We’re the company behind Nuvi.dev — a natural language agent builder that turns plain-English specifications into intelligent, verifiable agents — as well as the open-source frameworks Agent Contract and continuous-eval, which ensure AI systems behave as intended.
San Francisco, CA, USA1-50 employees
Relate is a modern Sales and Marketing CRM platform for B2B companies.
San Francisco, CA, USA; Remote1-50 employees
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.
Salt Lake City, UT, USA1-50 employees
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.
Galway, County Galway, Ireland1-50 employees
Relixir is the GEO-native CMS. Deploy agents to generate, update, and host content that gets cited by LLMs. Backed by Y Combinator. Customers include 200+ fastest growing B2B companies like Rippling, Airwallex, Retell AI, HackerRank, and more.
San Francisco, CA, USA1-50 employees
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.
1-50 employees
Remade is building an AI-native canvas for creative workflows. Try it now at: app.remade.ai
San Francisco, CA, USA1-50 employees
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.
Lagos, LA, Nigeria; LA, Nigeria201-1000 employees
Streamline prescription refills, reduce workload, and enhance patient care with intelligent automation.
San Francisco, CA, USA1-50 employees
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.
Lehi, UT, USA51-200 employees
Remy automates insurance-related tasks for practices, starting with phone calls to verify patient benefits and check on claims.
San Francisco, CA, USA1-50 employees
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.
San Francisco, CA, USA1-50 employees
RentFlow is the first ‘Buy Now Pay Later’ platform for commercial rent. In the US alone, ~ 50% of small & medium businesses are behind on their rent. RentFlow is the first AI-powered platform to end the late rent cycle for businesses: For landlords: Rent is paid in full and on time every month, at no extra cost. Cut the collections hassle. For businesses: Rent is split into smaller, revenue-synced installments. Match fixed costs to real cash flow year-long. No late rent. Just perfect timing on both sides.
San Francisco, CA, USA1-50 employees
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.
Vancouver, BC, Canada1-50 employees
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.
San Francisco, CA, USA1-50 employees
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.
AI / MLFoundation Model ProviderB2B SaaSSeries A$50M-$200M
Reprompt builds AI Agents for Location-- Mapping companies like Radar and TomTom use our agents to get live information about a point of interest or business that keeps their maps up to date. To do this we have an internal agents platform that supports Web, Vision, Doc Reading, and soon self-driving browser agents.
1-50 employees
Requestly helps developers build faster by intercepting, mocking, and testing API responses. No more waiting for backend developers, struggling with flaky staging environments, or fighting over API contracts. With 200,000+ active installs, Requestly is trusted by Google, Amazon, Workday, Indeed, and many other Fortune 500 companies.
San Francisco, CA, USA; Remote1-50 employees
Rescript helps regulatory compliance and advocacy teams effortlessly track the constant stream of legal developments to always stay ahead and compliant. Rescript intelligently scans the web and analyzes regulatory changes and emerging issues, enabling teams to respond proactively and efficiently. Rescript helps Fortune 100 compliance officers juggling multi-state regulations, lobbyists tracking late-night amendments on the Hill, and trade association analysts scanning dozens of agencies at once. We’re profitable and backed by seed funding from YC, General Catalyst, and Floodgate.
Washington, DC, USA1-50 employees
Resend is the new email API for developers. It's designed for you to build, test, and send transactional emails at scale. If you're using Sendgrid, AWS SES, or Postmark, come talk to us.
Remote1-50 employees
Resonance hyper-personalizes MarTech campaign content and automatically refreshes and stores high performing content for re-use.
San Francisco, CA, USA1-50 employees
Building new products around information transformation, generative social content, and generative UI. Resonate Chat - https://www.resonate.audio - The best voice mesaging experience. Period. Resonate Create - http://resonatecreate.com - Advanced Agentic Video platform Growing these products. Many more in the works!
We recover up to 85,000 invoices per day and get 50% paid within 20 days on average. Respaid uses AI to respectfully collect overdue B2B invoices. Just give us an excel file—no attached invoices needed. We integrate with your stack or work standalone, protecting your brand's reputation while maximizing collections through our AI-powered, respectful approach.
San Francisco, CA, USA1-50 employees
AI employees for home services and trades businesses. We automate the back office so field crews can focus on the actual work. Trades businesses (HVAC, plumbing, electrical, collision repair, roofing) run on legacy software and "glue" employees: people whose entire job is clicking through systems, copy-pasting between tools, and managing inbound volume across channels. A collision shop has one person generating estimates in CCCOne, another chasing parts vendors, another answering calls and Yelp messages, another doing invoices in QuickBooks. None of that requires a human. We build proactive background agents that run these operations autonomously -- quoting, estimating, procurement, insurance coordination, scheduling, follow-ups -- on top of the software these businesses already own. We started as an AI consulting firm talking to businesses across every industry. After a month, the pattern was obvious - trades and field services had the most "glue work" and the least tech sophistication to solve it themselves. Every shop we walked into had 2–4 people doing work that software should be delivering as an outcome, not just enabling. Our GTM is direct to operators and through PE-backed roll-ups, who are actively looking for margin improvements across their portfolio companies. If this is of interest, please reach out arushi@ressl.ai
San Francisco, CA, USA1-50 employees
Every time workers in a warehouse box an order, they reference a 100 page manual with instructions like where to put the shipping label. RetailReady replaces the instruction manual with a tablet application.
1-50 employees
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.
Remote1-50 employees
The leading platform for building and managing AI voice agents that revolutionize contact center operations.
1-50 employees
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.
San Francisco, CA, USA1-50 employees
Retool provides a low-code platform that lets teams rapidly build internal business tools and dashboards by connecting to databases, APIs, and AI models, enabling AI-driven apps, workflows, and agents with enterprise security and governance.
AI / MLAI ApplicationB2B SaaSSeries C$50M-$200M
RetroFix is an automation platform designed to be extremely intuitive to use, making it much easier and faster to automate manual work. To create or modify workflows you can describe them in natural language and our agent will create them end-to-end for you. We allow you to connect with 2000+ applications and use our pre-built actions for your workflows. In the case we don't have a pre-built step, our agent can instead write code to access the full APIs of all the apps we integrate with.
San Francisco, CA, USA1-50 employees
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.
New York, NY, USA1-50 employees
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.
San Francisco, CA, USA1-50 employees
Revamp helps eCommerce brands and agencies understand customer behavior by creating smarter segments for targeted email and paid acquisition campaigns.
1-50 employees
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.
Remote1-50 employees
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.
Berlin, Berlin, Germany1-50 employees
E-waste recycling facilities spend most of their time and effort sifting through discarded electronics, searching for valuable devices, refurbishing them, and reselling them in second-hand markets. Our first product is an AI-enabled robotic system that integrates with these facilities to assess and refurbish hundreds of laptops a day without any human intervention. The system tests laptops, wipes their hard drives, photographs them, and posts them on online marketplaces for resale, regardless of model, manufacturer, or operating system.
1-50 employees
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.
1-50 employees
Navigating chronic illness is an isolating and lonely process which ultimately reduces medical adherence and adversely impacts outcomes. There are over 100 deadly chronic conditions as 1 out of 2 Americans is currently living with at least 1 chronic condition. The US healthcare system has over $1 trillion dollars in direct costs. Medical adherence rates for therapeutic programs and medicine are only 50% because patients feel lonely, isolated, and unsupported in their chronic illness journey. Reviving Mind is an in-network telehealth provider that improves clinical outcomes and program adherence for the senior medicare and medicare-advantage population that is plagued with loneliness and chronic illness. This is done through a novel and proprietary clinical program and technology platform that integrates virtual, private, curated, and professionally led groups that scale up to 8-patients with individualized and goal oriented lifestyle medicine coaching that is automated but managed by a licensed provider. Scaling rapidly across the United States.
Boston, MA, USA; Remote1-50 employees
SixWheel makes diesel trucks hybrid-electric in 3 minutes at zero upfront cost while delivering $25k more profit per truck annually.
San Mateo, CA, USA1-50 employees
Revyl is a AI-native mobile testing platform that automatically catches and triages bugs before they reach production.
San Francisco, CA, USA1-50 employees
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.
1-50 employees
At Reworkd, we're working on multimodal LLM agents that serve as the simplest way to extract web data at scale. Customers come to us with lists of 100s to 1000s of websites along with a data schema. Our agents traverse these websites, understand their structure, and generate code to extract data from them. We've been working on LLM agents since their inception and have received over 30k stars on GitHub and 1M+ users across previous agent products. If you're interested in our pilot program, shoot us an email!
San Francisco, CA, USA1-50 employees
$8 trillion dollars of market cap needs to know what the FDA thinks. Rhizome AI makes that happen. Users ask a question and get an answer backed by up to 1,000 documents, where each statement has a citation. The data is pulled from terabytes of authoritative regulatory & clinical databases. Chetan started his career as a research engineer, but quickly realized he enjoyed building more than research. He joined EvolutionaryScale as their sole founding product engineer, launching their developer-scientist platform and scaling to tens of thousands of users and billions of API calls. He was also #16 at Instabase helping banks with document & imaging processing, closing $7m as the technical lead. Being so plugged into the AI world, he saw lots of AI drug discovery companies, but very few AI companies focused on bringing those drugs to market. Talking to people, it quickly became clear that a big, expensive barrier was understanding FDA thinking. Rhizome’s first product, Rhizome Ask, went from launch to six-figures in revenue during 2025.
Jersey City, NJ, USA; Remote1-50 employees
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.
San Francisco, CA, USA1-50 employees