Nov 19, 2025 12:34:42 AM

Companies


Showing 3876-3900 of 5661 companies
YC W23
Rally Tax logo

Rally Tax

AI-native US tax advisory for individuals

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.

YC W17
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Rally Tennis

Join tennis league and play competitively with people nearby

Rally Tennis is the best way to compete in leagues, find practice partners and improve your tennis game - all within a simple mobile app designed to help you play more tennis.

YC W22
Rally UXR logo

Rally UXR

User Research CRM

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.

YC W20
Ramani logo

Ramani

We're building financial infrastructure for Africa's supply chains

An app for salespeople to track inventory, register their customers and record their sales transactions. Cofounders: African. Ex-Salesforce PM, Stanford CS, Capgemini

YC S19
Ramen VR logo

Ramen VR

Ramen VR is transforming game development with advanced XR + AI tools.

XR + AI are the most fundamental computing shifts of the past century. We're using XR and AI to build products that empower creators of online games and virtual worlds. Meaningful games can change lives, and every game starts with its developers. We believe that game devs can change the world. ‍ We're a team of devs working on solving the hardest problems in game development. We previously built the #1 VR game Zenith: The Last City on Steam and Quest. We've raised $40m+ to date and have been working in stealth on our next game as well as tools that will shape the future of game development.

YC S24
Random Labs logo

Random Labs

Random labs is building fully open source software agents

We are building a fully local opensource software engineer. Software thrives on opensource tools and it's only right that this technology be built for all to use.

YC W17
RankScience logo

RankScience

Automated SEO for Startups

RankScience is the #1 trusted agency to grow SEO traffic for venture-backed Silicon Valley startups to the Fortune 500.

YC S23
Rankai logo

Rankai

Jumpstarting SEO/GEO with AI + Human Experts

Rankai is building an AI-powered Marketing Agency, starting with search engine marketing.

YC W16
Rappi logo

Rappi

On-demand delivery and financial services for Latin America.

Rappi is a mega high growth, Series B, consumer tech StartUp looking to be the everything store of Latin America. We are a marketplace that connects users who want to purchase prepared foods, groceries, clothes, and more with contractors who fulfil them. Think of Rappi as a Doordarsh meets Delivery meets Instacart. We are venture backed by top VCs in the world including Sequoia, DST, Andreessen Horrowitz and YCombinator. Management consultant skills are highly valued and one of the founders and three of the company's top leaders are former top tier management consultants. We are across Argentina, Brasil, Mexico, Colombia and are aggressively growing in these markets and all throughout LatAm.

YC S10
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Rapportive

Add profiles to email.

Rapportive shows you everything about your contacts right inside your inbox. You can immediately see what people look like, where they're based, and what they do. You can establish rapport by mentioning shared interests. You can grow your network by connecting on LinkedIn. Imagine relationship management built into your email. For free.

YC S16
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Raptor Maps

Raptor Maps builds software to manage the solar PV lifecycle.

Solar power is the #1 source of new energy in the world. Raptor Maps is a fast-growing, MIT-born startup that builds software to manage the solar lifecycle. We are deployed across 45 countries and 200+ million solar panels. Our software enables the solar industry to scale. We're headquartered at Greentown Labs, the largest cleantech incubator in the US and also support fully remote employees.

YC W15
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Rare Door

Empowering brick-and-mortar retailers to sell more and engage shoppers

Rare Door is an ecommerce platform that helps user discover and buy great products available in nearby stores.

YC S20
Rarebird logo

Rarebird

Elevating mental health to be a part of your daily coffee ritual.

We are making coffee for caffeine sensitive people. We do this by producing the world's first caffeine replacement, paraxanthine. It's better than caffeine at waking you up and causes fewer side effects, like anxiety and jitteriness.

YC S24
Rastro logo

Rastro

AI catalog ops for retailers and distributors

Rastro helps distributors and retailers automatically onboard, enrich, and maintain their product catalogs. By scraping supplier data, filling gaps, and standardizing attributes, Rastro enables companies to launch and scale faster.

YC S22
Raven logo

Raven

AI Assistants for Manufacturing Operations

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.

YC W15
Raven Tech logo

Raven Tech

Our vision is to build the next generation of iOS or Android, to…

Raven Tech is a startup which focus on artificial intelligent, big data and the next generation operating system. Besides, Raven Tech is the fifth alumni of Microsoft Venture Accelerator and the only one startup team from mainland China in Y Combinator W15.

YC W19
Ravn logo

Ravn

Ravn is building a heads-up display for soldiers.

Ravn is a DefenseTech company building a heads-up display for soldiers that will allow them to see around corners. In doing so, we allow them to see the enemy and react while they're still behind cover. Our lightweight heads-up display displays videos feeds from a camera on a gun, to drones, robots or other external platforms. Our heads-up display will become a soldier's most relied upon computer. We currently have four team members, all very experienced in their respective fields. Jake, the Founder, is a former Navy SEAL and understands the market and product. Our Chief Science Officer, Karl Guttag, is an industry leader in the optics and display space. Our VPs of Software and Hardware are both very experienced in their fields. Our primary technology focus is on peer-to-peer applications, near eye optics and displays, cameras/sensors/IoT, and UI/UX (hardware and software).

YC S14
Ravti logo

Ravti

Software to track, manage, and procure HVAC for commercial real…

Ravti makes HVAC easier for the Real Estate world. We track, manager, and procure HVAC for large property owners. We manage all your HVAC maintenance programs, emergent repairs, scheduled repairs, capital replacement, capex management, and all the associated headaches that come along with that – multiple bids, procurement, HVAC inventory, warranties. Your team can start any project with the simple click of a button. Best of all, we save 18% to 30% for the exact HVAC projects you are spending capital on today. We're removing the headaches associated with HVAC from the Owner’s perspective while making it the easiest business on the planet for the Vendors that serve you. Improve your asset audits and challenge your bottom line - by increasing capex accuracy and staff productivity. Mechanize the process of bidding, procuring, and overseeing your HVAC operations. It all starts with Ravti. We would love to hear from you, so please send us an email at support@ravti.com. If you would like to join an intelligent and energetic team who is innovating an antiquated industry, we are hiring!!! Send us an email: careers@ravti.com

YC W20
Raycast logo

Raycast

Speed up non-coding tasks for engineering teams

Raycast is a productivity tool that saves engineering teams time on non-coding tasks in apps like Jira, GitHub or Slack which might take up to 50% of a developer's day.

YC F24
Raycaster logo

Raycaster

Enterprise AI for life sciences

Raycaster is the enterprise AI engine for life sciences. From speeding up regulatory approval and manufacturing tech transfer, Raycaster advances the Industry 4.0 initiatives with world's leading life sciences companies.

YC W15
Razorpay logo

Razorpay

India's only full-stack financial solutions company for businesses.

The journey of building Razorpay started in 2014, when Harshil Mathur (CEO & Co-Founder) and Shashank Kumar (MD & Co-Founder) witnessed the dismal state of the online payments industry in India then and understood that they have a larger and more important issue to solve. And That was democratizing online payments for Indian businesses, particularly the underserved market, Startups and SMEs. Over the last 9 years, Razorpay has evolved from a single-product company to a multi-product company, from an online payment gateway to India’s only full-stack financial solutions company, offering payments and banking solutions to businesses. Razorpay today is transforming age-old complexities and changing every known paradigm of money movement for disruptive businesses. Over the last couple of years, Razorpay’s growth has evolved to be an index of India’s digital economy. From a kirana shop in Kashmir collecting payments on our POS device to a textile exporter in Kanyakumari accepting dollars through our International Payments product, Razorpay has revolutionised how businesses have traditionally transacted and interacted with money. Razorpay became the first and only Indian fintech to build a full-stack international Payment Gateway ‘Curlec by Razorpay’ and evolved into a comprehensive provider of payment solutions, leveraging the synergy between cutting-edge technological capabilities and a profound understanding of the local payment ecosystem. The introduction of the new Curlec Payment Gateway aims to cater to a wide spectrum of businesses, expanding its reach to over 5,000 establishments. Be it for international expansion or solving for Indian businesses, for Razorpay, the customer has always been at the core of all disruption, from addressing evolving needs to delivering new solutions. This hyperfocus helped bring Razorpay’s several industry-first innovations into the market since 2014. Razorpay became the first to launch a completely digital on-boarding process for startups, first to launch support for UPI, first to launch support for Bharath QR, first to introduce recurring payments for businesses through Razorpay Route, automating payment receipts and later automate payouts and making the entire process seamless and optimized and many more were introduced aling the way. Other firsts include: - First to launch India’s Multi-Network Tokenisation solution, TokenHQ - Razorpay became India’s first payment gateway to support credit cards on UPI - Razorpay also became India’s largest omnichannel payment gateway for businesses post acquiring Ezetap which is India’s leading offline POS company that was founded with the aim to simplify the in-person offline payments experience. Over the years, Razorpay’s valuation has jumped from $1 billion to $7.5 billion and has added a host of marquee investors to its captable. Razorpay is also the second Indian company to be a part of Silicon Valley’s largest tech accelerator, Y Combinator. Marquee investors such as Lone Pine Capital, Alkeon Capital, TCV, GIC, Tiger Global, Sequoia Capital India, Ribbit Capital, Matrix Partners, Salesforce Ventures, Y Combinator, and MasterCard have invested a total of $741.5 Mn through Series A, B, C, D, E and F funding. The last financing round of Series F led the company’s valuation to $7.5 Billion signaling one of the fastest increases in valuation for an Indian Unicorn. Razorpay has also made acquisitions with like-minded companies over the last 9 years. In total, till date, Razorpay has made eight acquisitions, Billme in 2023 - A Digital invoice and customer Engagement, Ezetap in 2022 - India’s leading offline POS company, PoshVine in 2022 - India’s leading loyalty and reward management platform, IZealiant in 2022 - A mobile-first, API-enabled, and cloud-ready payment solution and made its first international foray in South-East Asia by announcing its acquisition of Curlec in 2022 - A recurring payments platform. TeraFin Labs in 2021 - the AI-based SaaS platform that facilitates digital financing solutions, Opfin (Now RazorpayX Payroll) in 2019 - The payroll management solution and Thirdwatch in 2019, the first acquisition - The AI-powered fraud detection platform. All these efforts are being done in collaboration with banks, regulators, and stakeholders so that India can build a better place for small and big businesses. Today, Razorpay powers online payments for 76 Of 100 startup unicorns and millions of businesses in India. The core premise of what Razorpay was founded in 2014 and what it is today hasn’t changed. It is to make money movement simpler and easier, whether it is for businesses to receive money, send money, or manage money.

YC W25
ReJot logo

ReJot

Sync engine to share data across engineering teams in enterprises

At ReJot, we're building a synchronization engine to greatly reduce the complexity of data sharing between backend services within enterprises. The traditional approach is Event Streaming, where events are published to a platform like Kafka. Kafka not only requires significant effort to operate, it also forces engineers to use events. Events come with inherent complexity—they encode something happening rather than something being (i.e., state). Our approach is based on replication, where state is transferred directly instead of requiring a back-and-forth conversion to events. We provide primitives to enable teams to break data silos, while keeping in mind data ownership and provenance. Teams define what data their backend publishes and requires, and we'll make sure everything is reactively up-to-date. ReJot works on top of existing infrastructure such as Postgres.

YC W15
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ReSchedule Med

We help medical residency programs create and manage their schedules,…

Rescheduling for residency programs. Rescheduling is one of the largest logistics pain points in hospitals and residency programs. Reschedule provides an end-to-end work flow to manage graduate medical education scheduling.

YC S15
Reach logo

Reach

Long range, wireless energy distribution that scales

Reach Labs is building long-range wireless power networks that deliver scalable, resilient energy infrastructure.

YC S25
Reacher logo

Reacher

We automate creator marketing for the world's largest brands

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.