Developer Tools Startups

Pusher provides hosted, bi-directional APIs and messaging infrastructure that developers use to add realtime features such as live data updates, chat, notifications, and push notifications to their applications. It targets software engineering teams building realtime functionality without maintaining their own messaging infrastructure.

5 investors

Qdrant is an open-source vector search engine built in Rust for AI retrieval, supporting hybrid dense-sparse search, metadata filtering, quantization, and reranking. It offers managed, hybrid, private cloud, and edge deployment options for developers building RAG systems and AI agents at scale.

5 investors

Qwiet AI is an application security testing platform that identifies and remediates software vulnerabilities with high accuracy through AI-powered analysis. It serves AppSec teams and developers by consolidating SAST, SCA, IaC, and container scanning into a single tool with automated code fixes.

5 investors

Rayda provides end-to-end device procurement, deployment, management, and lifecycle services for IT teams managing distributed workforces globally. The platform handles device purchasing, pre-configuration, delivery, retrieval, data wiping, storage, and recycling across 170+ countries.

5 investors

PubNub provides a platform for building real-time interactive applications with messaging, presence detection, and edge computing capabilities. The service enables developers to deploy scalable, globally distributed apps with low latency and high reliability for use cases including chat, virtual events, and IoT device control.

5 investors

RegScale provides an AI-powered governance, risk, and compliance (GRC) platform that automates compliance workflows and continuous controls monitoring for DevSecOps and cloud-native environments. The platform helps practitioners reduce manual compliance work, accelerate certifications, and integrate with ITIL and DevSecOps workflows.

5 investors

Reown provides developer tools built on WalletConnect for connecting users to crypto wallets across EVM, Solana, Bitcoin and other chains, with support for social/email logins, Sign in with Ethereum, and multichain authentication. It also offers analytics on sessions, wallets, chains, and user behavior to help apps improve onboarding, retention, and monetization.

5 investors

Revel provides a software platform for hardware development and operation that unifies the entire product lifecycle from prototyping through scaled production. The platform serves hardware engineers and organizations seeking to reduce fragmentation in development workflows.

5 investors

Rockfish generates high-coverage, labeled synthetic data—including rare events, edge cases, anomalies, and drifts—from a customer's schema, sample, or production export to build evaluation sets for testing AI models and agents. It preserves temporal structure and statistical patterns without exposing real data, and can be deployed in a customer's own VPC, on-prem, or as a Snowflake Native App.

5 investors

Rollbar is a code-first observability platform that helps software development teams monitor errors and recover quickly from failures in production. It serves builders and developers who want to move faster without fear and deliver reliable software.

5 investors

Rookout provides log analytics and observability platform for developers to search, filter, and visualize logs from applications and infrastructure. The platform enables real-time debugging, performance analysis, and AI-assisted delivery across development and production environments.

5 investors

Rork Max is an AI-powered platform that enables developers to build and ship native iOS applications and games through conversational AI, with support for creating multiplayer games with physics simulations.

5 investors

Rosebud AI provides generative AI tools that enable users to create games and immersive interactive experiences without requiring extensive technical expertise. The platform uses code generation, video models, 3D generation, and music generation to democratize game development for creators of all skill levels.

5 investors

Runware provides a single API and inference platform for running AI models across image, video, audio, 3D, vision and LLM tasks, giving developers one endpoint, authentication and billing to switch between open-source and closed-source models. It operates its own custom hardware and software inference stack (the Sonic Inference Engine) to deliver lower-cost, low-latency inference for developers building AI features.

5 investors

Sapiom provides an execution engine and access network that lets AI agents use external capabilities — such as authentication, LLM inference, web search, voice, image and video generation, compute, databases, and messaging — through a single API key, with metered pay-per-use billing. It targets developers building AI agents in production, handling access, authentication, and billing across many vendors behind the scenes.

5 investors

SeaLights provides test impact analytics that automatically select and run only the tests relevant to a given code change across test types and stages, covering unit, E2E, regression, API, and system tests. The platform supports manual and automated testing for applications built in languages such as Java, C/C++, Node.js, .Net, Go, Python, and JavaScript, aimed at reducing QA and engineering testing cycle times.

5 investors

Secure Code Warrior offers interactive training challenges that help developers recognize and prevent vulnerabilities earlier in the software development lifecycle, enabling security teams to partner with engineering on securing both human-written and AI-generated code. It targets security and engineering teams within organizations.

5 investors

SendHub provides SMS automation software that sends text messages automatically based on triggers, schedules, or customer behavior patterns. The platform serves businesses seeking to automate routine messaging communications.

5 investors

Sentinel is a blockchain-based protocol and SDK for building decentralized VPNs, where node discovery, sessions, payments, and bandwidth run on-chain across a network of independent node operators. It provides a white-label stack for developers to launch branded dVPN applications and for operators to host nodes and earn bandwidth rewards.

5 investors

Shortcut provides a project management and issue tracking platform designed for software development teams to plan and execute projects. The platform emphasizes intuitive design and usability to help teams collaborate effectively.

5 investors

SignalWire offers APIs, SDKs, and a programmable control plane for developers to build and orchestrate real-time voice, messaging, video, and AI-agent communication workflows. Built by the creators of FreeSWITCH on fully owned telecom infrastructure, it serves developers and businesses building communications applications as an alternative to traditional CPaaS and CCaaS platforms.

5 investors

SimpleHash provides NFT indexing and data infrastructure for blockchain applications, helping companies reduce costs and improve customer experience in the crypto ecosystem.

5 investors

Sixa provides a cloud-based computer accessed through a client application, allowing users to run software on remote infrastructure rather than local hardware. The service targets users who want to avoid hardware maintenance and achieve consistent performance across multiple devices.

5 investors

Smallest AI develops small, efficient multi-modal voice AI models, including text-to-speech, speech-to-text, and a sub-3B language model, along with an agentic platform for building and deploying voice agents. It offers production-grade audio models and developer tools aimed at enterprises building real-time voice applications.

5 investors