Nov 18, 2025 03:34:50 PM

Companies


Showing 3976-4000 of 5661 companies
YC W21
Remora logo

Remora

Carbon capture for vehicles

We're building carbon capture for trains and trucks. We generate revenue for railroads and trucking companies by extracting, purifying, and selling CO2 from their exhaust. Our technology can capture up to 90% of the CO2 in the vehicle's exhaust while reducing soot, particulate matter, and NOx. We've partnered with Union Pacific, Norfolk Southern, Ryder, and Werner, and raised $117 million from Lowercarbon Capital, Valor Equity Partners, Union Square Ventures, and Y Combinator.

YC S23
Remy logo

Remy

Making it simpler for medical clinics to work with insurance

Remy automates insurance-related tasks for practices, starting with phone calls to verify patient benefits and check on claims.

YC S21
RendaloMaq logo

RendaloMaq

Tech-powered equipment rentals in Latam.

RendaloMaq is the main tech-powered equipment rental company in Latin America. Leveraging our proprietary software ROS®, we simplify and accelerate equipment access for the construction industry. Fleet management and equipment rentals under control. Our mission is to drive productivity through technological innovation while delivering reliable, world-class service.

YC S24
RentFlow logo

RentFlow

The first 'Buy Now Pay Later' solution for Rents

RentFlow is the first ‘Buy Now Pay Later’ rent collection platform. In the US alone, ~ 50% of small & medium businesses, and ~ 15% of residents are behind on their rent. RentFlow’s mission is to decrease the financial and administrative burden of late rent for everyone. Thanks to our partner bank, we automatically pay property managers upfront for their rent & fees on the 1st of the month. Meanwhile, business owners and residents have the possibility to pay their rent in flexible installments that adapt to their cash flow needs. We also report timely installments to all major credit bureaus to help renters build their credit score fast while paying on their own schedule. RentFlow leverages Generative AI to provide a built-in rent collection agent and to unlock installment plans on an ongoing basis based on each tenant’s risk profile. With RentFlow, say goodbye to late rent once and for all.

YC S09
RentHop logo

RentHop

Apartment rental marketplace

RentHop (www.renthop.com) helps renters find great apartments. We use sophisticated data analysis to rank apartment listings based on their "freshness"​, their accuracy and completeness and the responsiveness of the manager who listed the apartment on our site. As a renter, you can use list-based or map-based search tools to browse listings and comprehensive search filters to narrow our 100,000+ listings to just the ones you want. It’s easy and fast to reach out to brokers and property managers to schedule viewings and to manage responses. You can also use our innovative "Appointments on Demand"​ feature, a map showing the real-time locations of brokers and property managers available to show apartments, to reach out and schedule viewings on the fly! For brokers and property managers, RentHop provides a cost-effective, easy-to-use tool to promote your listings, get qualified leads and schedule viewings. You can also post and repost listings on the go using RentHop Manager, our mobile app for brokers and property managers, currently available in the iOS App Store. (You can download the mobile app at https://itunes.apple.com/us/app/renthop-manager/id695651355.) Your commitment to give good service will make you stand out on RentHop - our algorithm will credit you for your responsiveness and help give your listings the boost they need to get seen - and rented - by qualified renters. Look for our mobile app for consumers, due out soon! And please let us know any questions, thoughts or comments you may have - we'll look forward to hearing from you! You can reach us at feedback@renthop.com. You can also find us on Facebook, Twitter (@RentHop), Google+ and Pinterest.

YC S11
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Rentobo

The easiest way to find a tenant. Rentobo is a tool that makes it…

Rentobo is a new tool built for landlords, managers, and agents of all sizes to simplify the process of finding and signing a new tenant for your rental property. Enter your listing details once at Rentobo and we will help you promote your property across major rental search sites. Rentobo organizes rental applications, credit scores, and social networks into an easy to use tenant profile - everything you need to make a decision. Tenants use Rentobo to sign their lease and submit their deposit electronically. Combined with online applications you can stop pushing paper. For more information, please visit us at: http://www.rentobo.com

YC W23
Repacket logo

Repacket

Employee security done for you.

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.

YC S23
Repaint logo

Repaint

AI for building websites

Repaint is an AI web designer. It lets you create custom professional websites just by chatting with AI. You describe what you want—pages, style, content—and Repaint builds it. It's great for startup marketing websites, small businesses, portfolios, nonprofits and more.

YC S14
Replenish logo

Replenish

Keurig machine for smoothies.

Meet the Replenish Blender, the first self-cleaning appliance that instantly and harmoniously prepares healthy smoothies and snacks. The Replenish Blender mixes health, wellness, and simplicity in under a minute.

YC W20
Replicate logo

Replicate

Run machine learning models in the cloud

YC W15
Replika logo

Replika

Replika is an AI friend that you can talk to designed to make you…

Luka is a software development company based in San Francisco, California. The company created Luka app, a new messenger with AI-powered chatbots. They help you find places to eat, do web search, make plans together, pick places to eat, play trivia games and lots of other things in a messenger. In 2016 Luka launched a closed testing of Replika, a new app that allows to create a personal AI friend that helps people deal with loneliness. The app is powered by a proprietary deep learning architecture.

YC W18
Replit logo

Replit

Collaborative in-browser IDE

Replit is the world-leading collaborative browser-based development environment -- learn, create & deploy! Join a community of 20m+ developers.

YC S21
Replo logo

Replo

Online commerce for the AI age

Replo designs and launches your shop and entire marketing campaign, and runs your business for you. We are building every company's ecommerce specialist. To date, we’ve raised over $8.2M from Figma, YCombinator, Vercel, General Catalyst, Infinity Ventures, MAGIC Fund, Base Case Capital.

YC S20
Reploy logo

Reploy

Instant, shareable staging environments

Reploy makes it dead simple to generate full-stack staging environments or “previews” of web apps on every pull request. This helps teams move faster by sharing changes instantly, with everyone!

YC S21
Repool logo

Repool

Modernizing hedge fund back office software and services.

Repool makes it easy to launch and operate private funds, like Carta or Juniper for hedge funds. We build modern back office software and services to modernize and simplify launch, fund administration, and LP onboarding.

YC W24
Reprompt logo

Reprompt

AI Agents for Location

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.

YC W17
Request Network logo

Request Network

Request is a payment request technology & an ecosystem of apps

Request allows companies & people to pay and get paid in cryptocurrencies by relying on the most innovative payment request technology. On top of it, apps such as Request Invoicing allow professionals to send proper crypto invoices and get paid in a click. Adoption for this app is growing at an impressive rate as we can see here https://req.network

YC W22
Requestly logo

Requestly

Open-Source Postman alternative

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.

YC S24
Rescript logo

Rescript

AI Regulatory Analyst for Enterprises

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.

YC W15
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Rescue Forensics

Actionable human trafficking intelligence

Rescue Ops is a digital forensic that archives massive quantities of data from classified advertisement websites specializing in commercial sex ads for law enforcement agencies to use in anti-trafficking investigations.

YC W08
RescueTime logo

RescueTime

Take Back Control of your Time

RescueTime helps you set boundaries, protect focused work time, and achieve work/life balance by shedding light on how you spend your time, improving your focus, and helping you find more time for the things that matter most. We are a distributed company with members spread throughout the United States.

YC W23
Resend logo

Resend

Email for developers

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.

YC W21
Reshape Biotech logo

Reshape Biotech

Robots that automate the everyday tasks of microbiologists.

Reshape Biotech builds lab robots that automate the everyday tasks of microbiologists, from filling plates to analyzing images. Other companies try to sell “one lab robot that does everything”. But those robots become so complicated that they sit unused on the shelf. We build one robot for each function, which makes them easy to use.

YC W19
ResistanceBio logo

ResistanceBio

We solve drug resistance for cancer

YC W15
Resolve logo

Resolve

Real-time BIM collaboration for fast, predictable construction

At Resolve we’re building the future of collaboration and review for the construction industry. Today, Resolve helps bridge the communication gap between people who operate buildings and those who design and build them. We've built the most robust application for collaboratively reviewing complex facilities on the web and on wireless VR devices like the Oculus Quest. Our customers love it because it just works even with complex 3D building models. From data centers to cutting-edge biopharma facilities, Resolve provides a collaborative virtual environment for operations & maintenance teams to review and interact with 3D building models at full scale - decreasing late stage changes during the construction process and delivering a safer, more easily operable building. Our customers' facilities contain a multitude of complex systems which require careful coordination and review to ensure the building is completed on time and within budget. To prevent rework and increased building maintenance costs, Resolve fixes the broken system of screen-sharing 3D models and 2D floorplans with the operations teams that inherit the building and, instead, gives them easy access to their 3D building models before concrete is poured.