Developer Tools Startups

Jam automatically captures debugging information including device details, browser logs, network logs, reproduction steps, and backend traces to help engineers debug issues faster.

5 investors

Jama Connect is a requirements management platform used by technology and aerospace companies for product development and compliance. It helps teams manage design and development requirements, reduce rework, and accelerate product innovation across industries including health solutions, aerospace, and air safety.

5 investors

Jovian offers beginner-friendly online courses in programming, data science, machine learning, and web development, with a focus on practical, hands-on learning using Python and related tools. The platform serves aspiring developers and data professionals through structured courses with lessons, assignments, and cloud-based project environments.

5 investors

Kaelio builds infrastructure for AI agents to answer business data questions using governed context, approved metrics, and auditable sources. The platform serves data teams and analytics leaders who need AI systems to operate with the same definitions, permissions, and business logic as their existing reporting systems.

5 investors

Kernel provides infrastructure built on unikernels that enables AI agents to access and interact with the internet through web browsers, featuring fast startup times, stealth capabilities, session persistence, and comprehensive logging for developers.

5 investors

Kerys develops YS::Desktop, a workstation virtualization platform designed for field maintenance teams in industrial environments. It enables offline operation, remote updates, direct equipment connectivity, and multi-environment isolation while meeting IEC 62443 and NIS2 security standards.

5 investors

Keyframe Labs provides AI video personas that turn text and voice agents into lifelike video call experiences. The platform enables developers to deploy conversational video agents across enterprises, consumer apps, training platforms, and recruiting with production-grade, secure deployments.

5 investors

Kraftful offers an AI tool that collects user feedback from channels like sales calls, user interviews, support tickets, surveys, app reviews, Reddit, Discord, and Slack, then analyzes and prioritizes feature requests, bugs, and pain points. It converts insights into Jira or Linear tickets and links feedback to revenue data for product teams.

5 investors

Latch captures how teams actually work and converts operational context into structured data that AI tools can rely on. The platform helps companies describe their real workflows so automation projects can succeed.

5 investors

Lemma provides production monitoring and observability for AI agents, surfacing failures, aggregating issues, and enabling quick resolution through integrated alerts and context-sharing tools.

5 investors

Lightform develops design tools for projected augmented reality, combining computer vision and hardware to enable interactive visual experiences.

5 investors

Lightsprint is an AI-native platform where developers, product managers, and designers plan, build, and ship software together using parallel cloud agents. It works with existing codebases and integrates with GitHub, Linear, and Slack to streamline the full software development lifecycle from requirements to production.

5 investors

LiveKit provides developer infrastructure for building voice, video, and AI agent applications using real-time communication APIs and tools. The platform serves developers, AI labs, robotics companies, and enterprises building interactive AI systems.

5 investors

Locofy converts Figma and other designs into production-grade frontend code, giving AI coding agents like Cursor and Claude a clean foundation to build on. It offers a visual canvas for designers and developers to design from scratch, iterate on existing codebases, and generate code for various tech stacks.

5 investors

LogRocket provides session replay, product analytics, and AI-powered issue detection for web and mobile applications. The platform helps product teams understand user behavior, identify technical and UX problems, and monitor frontend performance.

5 investors

LottieFiles offers tools and a library for creating, managing, optimizing, and shipping lightweight animations across websites, apps, presentations, and social media. It serves designers, developers, and enterprise teams with a motion design workflow, an animation library, and integrations with design and developer tools.

5 investors

Luminal provides AI model compilation and inference optimization software that compiles models into optimized native code for GPUs and ASICs, delivering 2-3x faster inference performance compared to traditional runtime inference engines.

5 investors

mabl is an AI-driven testing platform that automatically maintains test coverage, identifies quality issues, and adapts to changes across software portfolios for engineering and quality teams. The platform integrates with existing development tools and enables teams to maintain testing velocity alongside AI-assisted code generation.

5 investors

Macrometa builds a globally distributed cloud platform designed for real-time applications that require high performance and low latency. The company serves enterprises seeking to deliver fast web services and experiences at scale.

5 investors

Magic develops frontier code models and AI systems to automate software engineering and AI research. The company combines large-scale pre-training, domain-specific reinforcement learning, and inference-time compute toward building advanced AI capabilities.

5 investors

Manufact provides a platform and open-source SDK for developers to build, test, and deploy MCP (Model Context Protocol) applications and servers for AI agents and chat interfaces like ChatGPT and Claude. The platform includes hosting, debugging tools, analytics, and publishing checks to help teams get their MCP apps to marketplace stores.

5 investors

Marlin is a protocol offering TEE-based coprocessors for decentralized compute, letting developers delegate computations to offchain microservices with proofs and attestations verified onchain. Its products include Oyster (a framework to build and deploy applications on trusted execution environments) and Kalypso (a permissionless zero-knowledge proof marketplace) for blockchain developers.

5 investors

Marlin is a protocol offering TEE-based coprocessors for decentralized compute, allowing blockchain computations to be delegated to offchain microservices with proofs and attestations verified onchain. Its products include Oyster (serverless coprocessors and confidential VMs) and Kalypso (a ZK proof marketplace), serving developers building dApps, oracles, decentralized exchanges and frontends.

5 investors

Medplum provides a data infrastructure and interoperability platform for developers building healthcare products and services. The platform offers secure, compliant infrastructure to enable healthcare innovators to develop applications more efficiently.

5 investors