Seed Developer Tools Companies

Glue provides a software tool that allows developers and coding agents to build and modify user interfaces directly from code.

Syntropy offers software that uses AI agents to plan, generate, test, and submit code changes for software development projects.

OpenSpec offers a framework that manages software specifications and tracks requirement changes for development workflows.

Envariant builds an AI interpretability SDK that lets teams inspect, steer, and control foundation model behavior programmatically.

Terminal Use offers a platform to build, deploy, and manage AI agents with filesystem access, orchestration, and execution infrastructure.

Cascade offers infrastructure that monitors AI agents, evaluates safety, detects failures, and improves the autonomous systems.

Salus offers AI runtime controls that validate and block agent tool calls, enforce policies, and guide retries with feedback.

Sentrial offers an AI agent observability platform that monitors behavior, detects issues, suggests code fixes, and integrates via APIs.

Ashr offers a platform that evaluates AI agents by running tool calls, prompts, scoring outputs, and tracing execution paths.

Sparkles offers a cloud environment where teams build, test, and preview code changes.

Carrot Labs develops AI software that generates and tests code changes to help developers build and modify software applications.

21st dev provides an open-source platform for discovering, sharing, and generating reusable React UI tools for frontend development.

Valgo develops software that quantifies risk for the insurance of physical AI systems.

Polymath builds AI training environments to develop and evaluate autonomous agents on long and complex software tasks.

Offline to Online Marketing Platform

Nullstone is a developer platform that connects all engineering tools and allows developers to launch apps on cloud providers.

Complete collaboration toolkit for B2B: comments, notifications, recordings, multiplayer, huddles.

Athenian is a platform that helps engineering leaders leverage insights and align teams with company goals.

Tanssi is an app chain infrastructure protocol that simplifies app chain deployment.

Respan is an AI observability platform that helps teams trace, evaluate, and monitor AI agent behavior and performance.

Laminar is a Information Service providing firm offering an open source platform for observability, analytics, evals and chain management.

Liveblocks provides real-time infrastructure for building collaborative applications for multiplayer experiences and AI agent interactions.

OpenRefactory helps enterprises manage the security risk associated with vulnerabilities in their FOSS infrastructure and their own code

SODA provides AI-powered software tools to accelerate the development and engineering of modern vehicles.

GenAI testing and validating startup