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

Open-source observability platform providing dashboards, metrics, logs, and traces, recognized as a Leader in the 2025 Gartner Magic Quadrant for Observability Platforms.

Observability and AI Monitoring · Series E $250M

Observability and AI Monitoring

Series E

$250M

HQ

AI-powered browser-based software creation platform that combines an online IDE, AI coding agent, and deployment infrastructure used by employees at 85% of Fortune 500 companies.

AI IDEs and Editors · Series D $400M

AI IDEs and Editors

Series D

$400M

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

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

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

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

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, model-agnostic AI coding assistant acquired by Cursor in June 2026; its code remains available, but the standalone commercial product and subscriptions were wound down.

AI IDEs and Editors · Acquired Cursor (Anysphere)

AI IDEs and Editors

Acquired

Cursor (Anysphere)

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 AI coding platform combining a large-codebase Context Engine with Auggie and the Cosmos orchestration layer for multi-agent software-development workflows.

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

Observability platform built for high-cardinality data exploration, using AI-powered querying and anomaly detection to help engineering teams understand complex distributed systems.

Observability and AI Monitoring · Series D $50M

Observability and AI Monitoring

Series D

$50M

HQ