Developer Tools Startups

Quome provides HIPAA-ready, SOC 2 compliant cloud infrastructure that deploys into a customer's own AWS, GCP, or Azure account, letting teams build and ship applications while staying audit-ready. It targets regulated industries such as healthcare, fintech, and government where standing up compliant infrastructure is otherwise slow and costly.

1 investor

Syntropy is an autonomous coding agent that generates tested code implementations from feature descriptions and submits pull requests, with integrations for Slack notifications and custom MCP extensions.

1 investor

Qutwo develops an operating system platform for quantum computing that enables rapid implementation, integration, and production-grade operation of quantum and AI solutions. The company serves enterprises and quantum technology providers seeking to move beyond proofs-of-concept toward commercial quantum computing applications.

1 investor

Rabbit is a cloud cost management and optimization platform focused on Google Cloud Services, giving data and platform engineers visibility into cloud usage along with automation tools to control and optimize resources. It uses data-driven insights and machine learning to balance cost and performance for cloud engineering teams.

1 investor

Raccoon AI is an AI agent platform that enables users to package workflows and knowledge into reusable "skills" — bundles of instructions, scripts, and access controls that automatically activate when relevant. The platform provides a persistent cloud environment with hard guardrails, connector integrations (Gmail, Drive, GitHub), and supports collaborative work through subagents.

1 investor

Radius is a Chromium-based browser for developers that lets coding agents like Claude Code, Codex, and Cursor run in parallel alongside PRs, docs, terminals, and localhost servers in a tabbed interface. It is local-first, scriptable via a CLI, and free to use on macOS.

1 investor

Radworks builds a peer-to-peer, open-source foundation for code collaboration, including Radicle (a Git-based decentralized code collaboration stack), Drips (a tool for funding open-source projects), and a local-first launcher app for decentralized frontends.

1 investor

RAIR Technologies builds AI-powered development tools and a platform ("Labco") for building Web3 applications, particularly on the Flow blockchain. The company targets blockchain foundations, ecosystem builders, and Web3 developers seeking to accelerate development and reduce barriers to entry.

1 investor

Rakurai builds a high-throughput, low-latency validator client for web3 infrastructure, aimed at blockchain validators who want to pack denser blocks and capture higher yields. Its software focuses on hardware-software co-optimization and onboarding liquidity from CeFi to DeFi while preserving decentralization and security.

1 investor

DGG develops RapidPipeline, a software platform that automates 3D asset processing and management for creative professionals and enterprises. The solution enables studios, brands, retailers, and platform companies to handle 3D digital products with the ease of 2D images.

1 investor

Rapida AI is an open-source voice AI platform for building, deploying, and operating production voice agents across phone, web, WhatsApp, and SIP, with provider flexibility and self-hosted or managed deployment. It serves agencies, enterprise teams, contact center operators, CPaaS/CCaaS companies, and developers needing white-label delivery, observability, and deployment control.

1 investor

Rapydo provides automated database management and optimization for DevOps teams, helping engineers prevent and resolve database performance issues with continuous monitoring and proactive solutions.

1 investor

Rave provides a cross-platform social toolkit for mobile game developers that enables them to build and use player social graphs across multiple games. The platform helps studios create player-to-player connection features that enhance engagement, retention, and viral growth.

1 investor

Raven develops AI assistants for manufacturing plants that help with operations including training, job planning, troubleshooting, and real-time analytics, integrating with existing industrial systems.

1 investor

Rawnet is a digital agency that designs and builds product experiences, websites, and e-commerce platforms for enterprise and mid-market clients. The company provides services spanning UX design, web development, headless CMS solutions, integrations, QA, DevOps, CRM implementation, and digital strategy.

1 investor

Raygun builds software development tools that help teams identify, diagnose and resolve user-impacting issues and performance problems across their applications. The platform serves development teams and businesses of all sizes globally.

1 investor

Tumiki is a no-code platform for deploying and managing "AI employees" built on the Model Context Protocol (MCP), letting teams integrate AI agents with business tools like Slack, Notion, Google Calendar, and GitHub and assign them roles, permissions, and specializations. It offers centralized MCP server management, role and permission configuration, security monitoring, and performance analytics for companies adopting AI across development and business domains.

1 investor

ReactiveSearch is an open-source, self-hosted search stack for building AI-powered site search, letting developers author search pipelines, build search UIs with low-code kits for React, Vue, Flutter, and JavaScript, and analyze search performance. It connects to search and AI backends such as Elasticsearch, OpenSearch, and OpenAI for developers adding search to their sites and applications.

1 investor

ReactWise develops AI tools for chemistry and chemical engineering, enabling researchers and engineers to accelerate molecular discovery and reaction optimization. The company combines machine learning with chemistry automation and high-throughput experimentation platforms.

1 investor

ReadyM builds multiplayer infrastructure and mods that enable community-driven multiplayer experiences in single-player games, starting with WukongMP for Black Myth: Wukong. The company provides tools and platforms for players, modders, and server owners to create customizable multiplayer modes and user-generated content.

1 investor

Real Artists builds a fast, native issue tracker for software development projects. The product targets software teams managing project issues.

1 investor

Reality AI develops an Edge AI software development environment that combines signal processing, machine learning, and anomaly detection for microcontrollers and microprocessors, enabling industrial, automotive, and commercial applications with minimal hardware footprint impact.

1 investor

Rebar Labs builds MEV-aware infrastructure for Bitcoin, including mining, privacy, and analytics tools such as Rebar Data (a blockchain explorer and developer suite), Rebar API for Bitcoin blockchain data access, and Shield MEV protection. Its products serve protocols, mining operations, and developers building on Bitcoin and metaprotocols.

1 investor

Rebellis AI generates high-quality 3D character animations from text descriptions using machine learning and human motion data, designed for game developers and animation creators.

1 investor