Developer Tools Startups

Rivet is a visual editor that lets product designers make UI changes and commit them directly to code, reducing the need for designer-engineer collaboration.

1 investor

Rivet provides infrastructure for AI agents and realtime applications, offering stateful compute primitives called Actors that run in Node.js or Bun backends. The platform supports deployment options ranging from local libraries to fully managed cloud services or self-hosted environments with compliance features like air-gapped and on-premises support.

1 investor

Roark builds a quality testing platform for voice AI agents using audio-based evaluation models. The platform allows teams to simulate calls before launch, score production conversations on audio, and validate fixes before customer deployment in healthcare, finance, insurance and other regulated industries.

1 investor

Robius is a software development company that builds custom software for both early-stage startups with limited budgets and MVPs and larger companies with defined project requirements. It provides cost estimation, project documentation, and delivery within agreed timelines and budgets.

1 investor

Iron, a MoonPay company, provides API-first stablecoin payment infrastructure including virtual accounts, fiat-to-stablecoin on/offramps, global payouts, checkout, and OTC services. It serves enterprises, PSPs, wallets, fintechs, exchanges, and treasuries building stablecoin-based payment flows.

1 investor

Rock Solid Knowledge creates technology solutions for organizations seeking to achieve their business goals. The company operates as a certified B Corporation committed to social and environmental responsibility, including carbon neutrality and gender equality initiatives.

1 investor

AI DR is a real-time detection and response platform that monitors and secures AI agent interactions by detecting and blocking threats such as prompt injection, data exfiltration, privilege escalation, and tool misuse. It is built for security teams to enforce policies and prevent attacks across complex AI workflows.

1 investor

rollApp is a cloud platform that runs desktop applications in the browser, letting users access more than 350 apps on Chromebooks, laptops, tablets, and smartphones without installation. It offers group subscriptions for schools and companies, and tools for software developers to move their desktop apps to the cloud.

1 investor

Rome Protocol runs an EVM environment inside Solana, letting developers deploy Solidity contracts (such as Compound v3 and Aave v3) and connect them to Solana's liquidity and state. It also lets teams launch their own chains built from Solana transactions, with a bundled bridge, explorer, oracle feeds, and compliance hooks, and their own token used as gas.

1 investor

Rome is blockchain infrastructure that runs sovereign EVM chains on Solana, providing shared security, atomic composability, and standard Ethereum tooling. It serves institutional token issuers, app teams, and Solidity developers with components including an oracle gateway, per-app EVM chains, a transfer-hook router, and RWA settlement with on-transfer compliance.

1 investor

Roost provides push notification software for websites, with features including geolocation targeting, A/B testing, and audience segmentation. The service currently operates on Chrome and Safari browsers across Windows, Mac, and Android devices.

1 investor

Rootly provides AI-powered on-call and incident management software that integrates with Slack and Teams to help engineering and SRE teams diagnose, resolve, and prevent incidents faster. It includes features such as paging, scheduling, automated workflows, and status pages for teams that need to maintain high system availability.

1 investor

Rork is an AI-powered platform for building native iOS mobile apps through a chat interface, allowing users to create, install, and publish apps to the App Store. It targets people who want to build mobile apps without traditional coding.

1 investor

Rosewood conducts technology due diligence assessments for venture capital, private equity, and M&A transactions globally, serving investors evaluating early-stage to mature technology businesses.

1 investor

ROUTE06 builds AI-driven development platforms (Acsim, Giselle, Liam) and provides consulting, enterprise system development, and DX support services for large companies. It focuses on generative AI and AI agent technology for digital transformation in Japan.

1 investor

Rovr is an AI orchestration platform for field delivery engineering, IT consulting, and professional services teams that automates the capture of customer requirements, work structuring, and project delivery. It integrates with Slack, Linear, and GitHub to convert customer conversations into tickets, generate documentation, and accelerate implementation timelines.

1 investor

Rubber Ducky Labs provides AI-based product catalog analysis for e-commerce teams, automatically generating metadata tags from uploaded product data to improve search and discovery capabilities.

1 investor

RUBICON is a software development and IT services company based in Vienna that specializes in agile software engineering, DevOps, cloud infrastructure, and custom solutions for enterprise digital transformation. The company serves businesses seeking to modernize their IT operations and implement AI-based solutions while maintaining data sovereignty.

1 investor

Rulebricks provides a no-code decision management platform that allows teams to model, publish, and manage business decision logic through API endpoints. The platform serves enterprises across industries needing to automate decisions like approvals, fraud detection, routing, and eligibility calculations.

1 investor

Runhouse builds Kubetorch, a Pythonic serverless interface for running, building, and deploying machine learning workloads on Kubernetes directly from Python. It targets ML engineers and teams working on distributed training, reinforcement learning, and other large-scale ML applications, offering fast iteration, cost savings, and built-in fault handling.

1 investor

RunAnywhere is a research-first inference lab that hand-writes GPU kernels and develops SDKs to accelerate large language model inference on consumer silicon, particularly Apple devices. The company provides inference runtime software and open-source tools for developers deploying AI models on mobile and edge devices.

1 investor

Galileo provides evaluation, monitoring, observability, and guardrail tools for AI developers to ensure language model applications are reliable and safe across their development lifecycle. The platform serves AI engineering teams building production LLM applications and helps them continuously improve through real-time feedback loops and mistake prevention.

1 investor

RunKit provides an interactive sandbox environment for testing server-side JavaScript code, allowing developers to experiment with different Node.js versions and npm packages without installation overhead.

1 investor

RunQL is an open-source, VSCode-based SQL editor that lets developers connect to databases, write and run SQL, auto-generate schema documentation, ERDs, and charts, and store all artifacts as version-controllable JSON and Markdown files. It targets development and data teams working with AI coding tools, providing documented schema context to AI providers while running offline-first, and serves as the official client for the SecureQL database governance proxy.

1 investor