Nov 18, 2025 05:43:09 PM

Companies


Showing 3951-3975 of 5661 companies
YC S12
R

RegistryLove

Cross-store wedding registry.

The first wedding registry to co-operate with independent retailers & big box stores, RegistryLove lets you register products and services from anywhere & consolidate them all onto ONE registry. From traditional department store items, to local gems you wouldn't find anywhere else, to your dream honeymoon & activities, RegistryLove is a service tailored to _you_.

YC S18
Regology logo

Regology

AI Agents for Regulatory Compliance

Regology is an AI-powered regulatory intelligence platform that enables compliance, legal, risk, and operations teams to navigate complex regulatory environments across U.S. Federal, all 50 states, and global jurisdictions. At its core, the Smart Law Library™ provides a curated, continuously updated repository of applicable laws and regulations. Three specialized AI agents drive the platform: the Regulatory Change Agent tracks and alerts on jurisdiction-specific developments; the Compliance Agent maps changes to policies, controls, and risks; and the Regulatory Research Agent delivers plain-language summaries, multi-jurisdictional comparisons, and actionable insights—helping teams anticipate change, mitigate risk, and act decisively in fast-evolving regulatory landscapes.

YC W22
Rehook.ai logo

Rehook.ai

Run, Track and manage any and all user incentive campaigns.

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.

YC W21
Rejoy Health logo

Rejoy Health

AI-powered healthcare information

Our AI-powered healthcare information platform leverages LLMs to deliver accurate, up-to-date medical knowledge

YC S18
Rejuvenation Technologies Inc. logo

Rejuvenation Technologies Inc.

We extend telomeres to extend the human health span

Delivery of TERT mRNA extends telomeres sufficiently in a few days to reverse over a decade of telomere shortening during normal aging. We are advancing TERT mRNA-based therapies to the clinic.

YC W23
Relace logo

Relace

Models and infra for coding agents

Relace makes it easy to deploy production-ready coding agents. Our models are co-optimized with infrastructure to achieve SoTA performance: 10k+ token/s code merging and retrieval across million-line repositories in seconds.

YC W24
Relari logo

Relari

AI Agent Builder for Software 3.0

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.

YC S22
Relate logo

Relate

All-in-One Sales and Marketing CRM for B2B teams

Relate is a modern Sales and Marketing CRM platform for B2B companies.

YC S17
Relationship Hero logo

Relationship Hero

Dating & relationship coaching sessions for individuals and couples

Instantly connect with a certified relationship expert to get coaching and actionable advice: how to get a date, how to interpret a text, broken trust after cheating, moving on after a breakup, and more.

YC W16
Relativity Space logo

Relativity Space

Building humanity’s multiplanetary future.

Relativity is building humanity’s multiplanetary future. We invented a new approach to design, build, and fly our own rockets, starting with Terran 1 – the world’s first entirely 3D printed rocket, and Terran R, our next generation medium-heavy lift fully reusable launch vehicle. As a vertically integrated technology platform, Relativity is at the forefront of an inevitable shift toward software-defined manufacturing. By fusing 3D printing, artificial intelligence, and autonomous robotics, we are pioneering the factory of the future. Disrupting 60 years of aerospace, Relativity offers a radically simplified supply chain, building a rocket with 100x fewer parts in less than 60 days. We believe in a future where interplanetary life fundamentally expands the possibilities for human experience. Our long-term vision is to upgrade humanity’s industrial base on Earth and on Mars.

YC F25
Relaw logo

Relaw

AI Assistant for B2C Law Firms

YC S22
Relay Health logo

Relay Health

The #1 App to Quit Porn: Rebuild Focus and Intimacy

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.

YC S17
Releaf Earth logo

Releaf Earth

Turning food waste into Biochar to remove CO2 from the atmsophere

Releaf Earth is a climate tech startup pioneering carbon removal and agricultural solutions leveraging biochar (BCR). Expanding from our roots in food processing technology, we now specialize in producing premium biochar from palm kernel shells. Biochar Carbon Removal (BCR) is a powerful tool for carbon sequestration and a key technology for economic development in Africa. African farmers already experience a 150% global mean temperature rise from a climate crisis they didn’t cause. Releaf's mission is to empower rural communities with improved productivity, crop yields, and a role in achieving Net Zero Emissions.

YC W20
Release logo

Release

Environments as a service

Release delivers staging environments as a service. With Release a staging environment is automatically generated with every Pull Request which removes the bottleneck most companies have when they only have a single staging environment.

YC S22
Relevium Medical logo

Relevium Medical

Platform injectable gel based therapeutic for osteoarthritis

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.

YC W17
Reliance Health logo

Reliance Health

We make healthcare in emerging markets affordable and accessible

Reliance Health uses technology to make quality healthcare delightful, affordable and accessible in emerging markets. Through an integrated approach that includes affordable health insurance, telemedicine and a combination of partner and proprietary healthcare facilities, Reliance Health offers innovative healthcare solutions that meet the needs of emerging markets including Nigeria, Egypt and growing

YC X25
Relixir logo

Relixir

The Autonomous GEO Platform

Relixir is the autonomous GEO platform. We map, monitor, and continuously improve AI search rankings across ChatGPT, Perplexity, Google AIO, etc. Customers include global marketing teams from 50+ fastest growing companies like Rippling, Airwallex, Retell AI, HackerRank, etc.

YC S25
Relling logo

Relling

Data and infra for world models

Relling is working on the “ImageNet for world models”: large-scale, high-quality multimodal datasets that help AI and robotics teams train systems to see, move, and interact with the real world. We combine synchronized video, depth, LiDAR, motion, and audio, we give researchers the building blocks for truly general-purpose AI.

YC F24
Relvy AI logo

Relvy AI

AI powered debugging notebooks for incident response

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.

YC S24
Remade logo

Remade

AI-native canvas for creative workflows.

Remade is building an AI-native canvas for creative workflows. Try it now at: app.remade.ai

YC W22
Remedial Health logo

Remedial Health

B2B E-commerce & Fintech platform for Pharmacies & Hospitals in Africa

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.

YC F25
Remedy logo

Remedy

AI Agents for Pharmacies

Streamline prescription refills, reduce workload, and enhance patient care with intelligent automation.

YC W22
Remi logo

Remi

Simplifying roofing for homeowners, roofers and enterprises.

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.

YC W15
Remix logo

Remix

We’re building a platform to empower cities to plan the best possible…

Remix’s mission is to help build more livable cities. Our software helps city planners understand their communities and design transportation systems that serve them. We’ve partnered with over 325 cities across 20 countries on 4 continents — and were continually seeking to grow our impact around the world. Urban planning impacts everything from economic mobility to CO2 emissions, and our platform empowers local governments to transform their transportation systems, design safer streets, and implement new mobility options to better serve their communities.

YC S24
Remo logo

Remo

AI for compliance teams at banks

Remo is building AI copilots for onboarding and compliance teams at financial institutions. We automate highly manual processes like KYB, AML, and Ongoing Monitoring.