RIALTO is building the definitive companion app for a new generation of tech-savvy antique dealers who are hungry for tools to elevate their business. RIALTO is on an ambitious mission to become the category-defining company in art, antiques, and interiors.

We're a CI/CD platform with an entirely differentiated execution model. Rather than parallelizing jobs on VMs, we provide a serverless interface using a graph of tasks. We then have automatic, content-based caching, which eliminates the large amount of redundant executions that CI platforms have today. You can test changes from a local CLI so that you don't have to commit and push to run. We've made substantial improvements to every aspect of the developer experience.

Rabbet offers cloud-based software for commercial lenders and real estate developers to centralize construction finances, automate administrative tasks, and reduce the time spent managing draws.

Founded by the youngest US radiologist in history, Rad AI empowers physicians with AI to save time, reduce burnout, and improve the quality of patient care. By combining deep expertise in healthcare and AI and using one of the largest proprietary radiology report datasets in the world, Rad AI has uncovered hundreds of new cancer diagnoses for patients and reduced the error rate in tens of millions of radiology reports by nearly 50%. The company has raised $80+ million to date from venture funds and just closed on its series B financing with investors Khosla Ventures, Gradient (Google’s AI fund), and ARTIS. Rad AI has also formed a partnership with Google to collaborate on the future of generative AI to redefine healthcare.

Radar Labs is the location infra dev tool. Doing 1B+ API calls per day. Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform). We're based in NYC with our HQ in Union Square. Interesting things we're working on include HorizonDB, our Geospatial database written in Rust, precise indoor location more accurate than iOS and Android leveraging Ultra-wideband, other sensors on the device and ML models, mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time, multi-region AWS deployment, 99.99%+ availability, speeding up deploys of backend data services with EC2 Warm Caches, automating security posture with Vanta, and frontend tools to visualize and debug location data at scale.

Radiance is a design agency powered by The Source®, our Creative OS that combines design, automation, and AI to scale brands. We’re backed by Invisible and are looking for a founding engineer to help us build LLM-native tools that power real creative workflows.

Radical AI is a company focused on changing the way materials are designed, developed, and discovered. They aim to build a full stack solution from AI generated materials to autonomous, high-throughput experimentation, resulting in a new paradigm of scientific discovery.

Raidium develops a radiological foundation model as the 'GPT' of radiology. This new generation of AI will enable the building of an imaging biomarker factory for both clinical practice and research, tackling the complexity of precision medicine. We are a team of 10, with machine learning engineers, researchers, and doctors.

Raiffeisen Software is involved in building and evolving a company-wide Design System used across more than 400 applications in over 7 business units.