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Best Coding AI Startups in United States

48 startups match both filters.

Cursor

US est. 2022

The AI code editor built for productive engineers.

Raised
$7.6B
Stage
S-D
88

Cognition

US est. 2023

Applied AI lab building Devin, the AI software engineer.

Raised
$2.5B
Stage
S-D
84

Codeium

ACQUIRED
US est. 2021

Free AI coding superpower for every developer

Raised
$3.0B
Stage
M&A
84

Replit

US est. 2016

Build software collaboratively from any device.

Raised
$1.3B
Stage
S-F
80

Factory

US est. 2023

The only software development agents that work everywhere you do, from IDE to CI/CD.

Raised
$200M
Stage
S-C
70

OpenHands

US est. 2024

Open-source AI software agents that plan, write, and ship code across entire codebases.

Raised
$23.8M
Stage
S-A
70

Entire

US est. 2025

Developer platform for the era of agentic coding

Raised
$60M
Stage
Seed
70

PlayerZero

US est. 2021

Autonomous debugging agents that catch and fix code bugs before production

Raised
$20M
Stage
S-A
70

Blitzy

US est. 2023

The only autonomous code generation platform with infinite code context, building enterprise software in days, not months.

Raised
$200M
Stage
S-B
68

Relace

US est. 2023

AI models and infrastructure that power autonomous coding agents

Raised
$23.5M
Stage
S-A
65

Windsurf

ACQUIRED
US est. 2021

Agentic AI IDE for next-generation coding.

Raised
$267M
Stage
S-C
64

Supermaven

US est. 2023

The fastest code autocomplete — 1M token context, instant suggestions

Raised
$12M
Stage
S-A
64

Boundary (BAML)

US est. 2023

BAML, a programming language and toolchain for building type-safe, structured-output LLM applications.

Stage
Seed
64

Syntropy

US est. 2026

The agentic coding app for complex tasks

Raised
$500K
Stage
Seed
64

Scott AI

US est. 2025

The planning layer for teams that build with coding agents

Raised
$500K
Stage
Seed
64

Wabi

US est. 2023

The YouTube of apps: prompt to instantly build and share mini-apps

Raised
$20M
Stage
Pre-S
63

v0

US est. 2023

Build agents, apps, and websites with AI — generate working frontends in minutes

Stage
CORPORATE
60

Magic Patterns

US est. 2023

AI design tool that turns prompts into production-ready UI for product teams

Raised
$6.5M
Stage
S-A
60

OpenCode

US est. 2024

Open-source terminal AI coding agent — Aider alternative with multi-model support

59

Gemini Code Assist

US est. 2024

Google's AI code assistant — 1M token context, deeply integrated with Google Cloud

Stage
CORPORATE
59

Aider

US est. 2023

AI pair programming in your terminal that edits your codebase and commits changes via Git.

59

Magic

US est. 2022

Building frontier code models to automate software engineering and research.

Stage
GROWTH
59

AutonomyAI

US est. 2024

Agentic AI that ships production-grade front-end code like a senior developer

Raised
$4M
Stage
Pre-S
59

Bolt.new

US est. 2024

Full-stack apps from a single prompt — deployed in seconds by StackBlitz

Raised
$105.5M
Stage
S-B
58

Augment Code

US est. 2022

AI agents that understand your entire codebase, from IDE to CLI to code review.

Raised
$252M
Stage
S-B
58

Tusk

US est. 2023

AI agent that generates unit and integration tests on every pull request

Raised
$2.1M
Stage
Seed
58

Amazon Q Developer

US est. 2023

AWS-native AI coding assistant — optimized for cloud developers

Stage
CORPORATE
57

Morph

US est. 2025

Fast Apply infrastructure that merges AI code edits at 10,500 tokens/sec

Raised
$500K
Stage
Seed
57

Poolside

Verified
US est. 2023

AI platform for software engineering

Raised
$500M
Stage
GROWTH
56

Manicule

US est. 2025

AI-native documentation studio for developer tool companies.

Raised
$500K
Stage
Pre-S
55

Refortifai

US est. 2026

Reasoning models and RL environments for electronic design automation and chip design workflows.

Raised
$500K
Stage
Seed
55

Replicas

US est. 2026

Background coding agents that delegate engineering work to sandboxed AI in Slack, Linear, and GitHub.

Raised
$500K
Stage
Seed
55

Cline

US est. 2024

Open-source autonomous AI coding agent for VS Code — bring your own model

Raised
$27M
Stage
S-A
53

GitHub Copilot

US est. 2021

The world's most adopted AI code assistant — 1M+ developers inside GitHub

Stage
CORPORATE
52

Gemini CLI

US est. 2025

Google's free open-source terminal AI coding agent — 1M tokens, no cost

Stage
CORPORATE
52

Runtime

US est. 2026

Sandboxed coding agents for everyone on your team — with guardrails and observability.

Raised
$500K
Stage
Seed
52

Superlog

US est. 2026

AI-native observability that installs itself and ships pull requests to fix the bugs it finds.

Raised
$500K
Stage
Seed
52

Limrun

US est. 2025

Cloud XCode, iOS and Android simulators that let any coding agent build mobile apps without a Mac.

Raised
$500K
Stage
Seed
52

Corelayer

US est. 2025

AI on-call engineer that debugs alerts, logs, and data pipelines in regulated industries.

Raised
$500K
Stage
Seed
52

Kilo Code

US est. 2024

Structured AI coding modes for VS Code — architect, code, and review separately

Raised
$8M
Stage
Seed
51

Sweep

US est. 2023

The fastest AI coding assistant for JetBrains IDEs.

Raised
$2M
Stage
Seed
50

Indexable

US est. 2026

Sandbox infrastructure for AI agents with millisecond full-environment forks.

Raised
$500K
Stage
Seed
50

Deep Interactions

US est. 2025

A collaborative AI app builder that lets entire teams ship production AI products together in an afternoon.

Raised
$500K
Stage
Seed
50

Zed

US est. 2021

The multiplayer code editor — fast, native, and AI-first from the ground up

Raised
$42M
Stage
S-B
48

Phind

US est. 2022

AI search engine for developers

Raised
$10.4M
Stage
S-A
47

Continue

US est. 2023

Quality control for your software factory with AI checks on every pull request.

Raised
$3M
Stage
Seed
47

Kiro

US est. 2025

Amazon's spec-driven AI IDE — build with PRDs, not prompts

Stage
CORPORATE
46

Sourcegraph

Verified
US est. 2013

AI-powered code intelligence platform

Raised
$223M
Stage
S-D
45