Top DevTools & AI Coding companies

Agentic AI development platform with five specialized agents for test generation, code review, coverage analysis, deep research, and workflow automation, formerly known as CodiumAI.

AI Testing and QA · Series B $70M

AI Testing and QA

Series B

$70M

HQ

Builds frontier large language models including GPT and Codex that power the majority of AI coding tools via API, plus first-party products like ChatGPT and Codex CLI.

Foundation Models · Growth $110B

Foundation Models

Growth

$110B

HQ

Provides durable execution infrastructure that ensures AI agent workflows are resilient to failures, with automatic retries, state persistence, and human-in-the-loop orchestration for production-grade agents.

Agent Infrastructure · Series D $300M

Agent Infrastructure

Series D

$300M

HQ

Creates Claude — the frontier LLM family that powers Claude Code, the terminal-based coding agent that became the breakout developer tool of 2025.

Foundation Models · Series G $30B

Foundation Models

Series G

$30B

HQ

Vibe-coding platform enabling developers and non-technical users to create and deploy web applications from natural-language prompts, reaching $200M ARR in under two years.

AI IDEs and Editors · Series B $330M

AI IDEs and Editors

Series B

$330M

HQ

Builder of Cursor, the AI-native code editor that has become the professional developer's tool of choice for agent-assisted coding with multi-file edits, repo-wide context, and model-agnostic backend.

AI IDEs and Editors · Series D $2.3B

AI IDEs and Editors

Series D

$2.3B

HQ

Provides the dominant open-source framework for building AI agents plus LangSmith, a commercial platform for tracing, evaluating, and monitoring LLM-powered applications in production.

Observability and AI Monitoring · Series B $125M

Observability and AI Monitoring

Series B

$125M

HQ

Powers the AI Cloud platform combining Next.js, v0 AI development agent, and edge deployment infrastructure that turns natural-language prompts into production applications.

Build and Deploy · Series F $300M

Build and Deploy

Series F

$300M

HQ

Serverless cloud for AI and data workloads that lets engineers run Python at scale on pooled CPUs and GPUs with sub-second container starts and per-second billing.

AI Compute and Infrastructure · Series B $87M

AI Compute and Infrastructure

Series B

$87M

HQ

AI-powered code review platform that provides automated, context-aware pull-request reviews across GitHub, GitLab, and Bitbucket with multi-layered analysis and line-by-line suggestions.

AI Code Review · Series B $60M

AI Code Review

Series B

$60M

HQ

End-to-end platform for LLM evaluations, prompt engineering, and production observability, used by Notion, Replit, Vercel, Cloudflare, Ramp and Stripe to ship AI features with confidence.

LLM Evals and Observability · Series B $80M

LLM Evals and Observability

Series B

$80M

HQ

Open-source secure cloud sandboxes that give every AI agent its own isolated Linux computer to run code, browse files, and use real-world tools — adopted by 88% of the Fortune 100.

AI Agent Infrastructure · Series A $21M

AI Agent Infrastructure

Series A

$21M

HQ

Modern issue-tracking and project-management tool purpose-built for software teams, with AI features for automated triage, summarization, and workflow orchestration across the development lifecycle.

Platform Engineering · Series C $82M

Platform Engineering

Series C

$82M

HQ

Open-source AI code assistant that works as an IDE extension across VS Code and JetBrains, allowing developers to choose any model provider and customize their AI coding experience.

AI IDEs and Editors · Seed $3M

AI IDEs and Editors

Seed

$3M

HQ

ML and LLM observability platform with OpenTelemetry-based tracing, real-time evaluations, and agent observability for multi-step AI agent traces in production.

Observability and AI Monitoring · Series C $70M

Observability and AI Monitoring

Series C

$70M

HQ

Creator of Bolt.new, a browser-based AI development platform that lets non-technical users spin up full-stack web apps with natural language, integrated Supabase storage, and instant Netlify deployment.

AI IDEs and Editors · Series B $105.5M

AI IDEs and Editors

Series B

$105.5M

HQ

AI lab building foundation models purpose-trained for software engineering, with a model architecture designed specifically for code generation and understanding rather than general-purpose conversation.

Foundation Models · Series B $500M

Foundation Models

Series B

$500M

HQ

Enterprise-focused AI coding assistant providing dependency mapping, architectural analysis, and context-aware code generation tuned for large-scale, complex codebases.

AI IDEs and Editors · Series B $227M

AI IDEs and Editors

Series B

$227M

HQ

Enterprise AI coding assistant purpose-built for organizations with complex codebases, mixed tech stacks, and strict security requirements, supporting on-premise and air-gapped deployment.

AI IDEs and Editors · Series B $25M

AI IDEs and Editors

Series B

$25M

HQ

Infrastructure-as-code platform that launched Pulumi Neo, a purpose-built AI agent for automating cloud infrastructure tasks including provisioning, security, and compliance at enterprise scale.

Infrastructure as Code · Series C $41M

Infrastructure as Code

Series C

$41M

HQ

AI-native terminal that has evolved into the Agentic Development Environment (Warp 2.0), a platform for coding with multiple parallel AI agents from the command line.

AI Coding Agents and Environments · Series B $50M

AI Coding Agents and Environments

Series B

$50M

HQ