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Best Agents AI Startups in United States

100 startups match both filters.

Cursor

US est. 2022

The AI code editor built for productive engineers.

Raised
$7.6B
Stage
S-D
84

Crescendo

US est. 2024

AI-native contact center blending agents and humans

Raised
$50M
Stage
S-C
73

xAI

Verified
US est. 2023

AI designed to understand the universe

Raised
$56B
Stage
S-E
72

Cognition

US est. 2023

Applied AI lab building Devin, the AI software engineer.

Raised
$2.5B
Stage
S-D
70

Notion AI

Verified
US est. 2013

Connected AI workspace

Raised
$270M
Stage
SECONDARY
69

Grammarly

US est. 2009

AI writing assistant for individuals and teams.

Raised
$1.2B
Stage
GROWTH
68

Sierra

Verified
US est. 2023

Conversational AI agents for every business

Raised
$2.2B
Stage
S-D
66

DataRobot

US est. 2012

The only unified agent workforce platform built for enterprise outcomes, not endless pilots.

Raised
$1.1B
Stage
S-G
66

Ema

US est. 2023

Universal AI employee for the enterprise

Raised
$86M
Stage
SERIES A EXTENSION
66

7AI

US est. 2024

Agentic cybersecurity platform deploying autonomous AI security agents for alert triage and investigation.

Raised
$166M
Stage
S-A
65

Hippocratic AI

Verified
US est. 2023

Safe AI agents for healthcare

Raised
$461M
Stage
S-C
64

Jasper

US est. 2021

AI copilot for enterprise marketing teams.

Raised
$125M
Stage
S-C
63

Decagon

Verified
US est. 2023

AI agents that actually solve customer problems

Raised
$546M
Stage
S-D
63

Augment

US est. 2024

AI teammate that automates freight order-to-cash workflows

Raised
$110M
Stage
S-A
63

Model ML

US est. 2024

AI workspace that automates investment banking and finance workflows

Raised
$87M
Stage
Seed
63

Contextual AI

US est. 2023

Build specialized RAG agents for the enterprise

Raised
$100M
Stage
Seed
62

Augment Code

US est. 2022

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

Raised
$252M
Stage
S-B
61

Exaforce

US est. 2023

Agentic SOC platform for real-time threat detection and response

Raised
$200M
Stage
S-B
61

Databricks

Verified
US est. 2013

The data + AI company

Raised
$5.6B
Stage
S-L
60

Anterior

US est. 2022

Clinician-led AI platform that automates prior authorization and clinical administrative work for health plans.

Raised
$64M
Stage
S-C
60

Crosby

US est. 2025

AI-native law firm delivering fast contract review through a Slack-native, services-as-software model.

Raised
$80M
Stage
S-B
60

Cluely

US est. 2025

AI desktop overlay that listens, sees the screen, and whispers answers in real time.

Raised
$20.3M
Stage
S-A
60

Ivo

US est. 2022

AI contract review and intelligence for enterprise legal teams

Raised
$81M
Stage
S-B
60

Poke

US est. 2024

An AI personal assistant that lives inside your text messages

Raised
$25M
Stage
S-A
60

Rox

US est. 2024

AI agent swarms that put enterprise revenue on autopilot for the Global 2000.

Raised
$50M
Stage
SEED EXTENSION
59

/dev/agents

US est. 2024

An operating system purpose-built for the era of AI agents.

Raised
$56M
Stage
Seed
59

Mem0

US est. 2024

The memory layer for AI agents and personalized AI applications

Raised
$24M
Stage
S-A
59

Mastra

US est. 2024

The open-source TypeScript framework for building AI agents

Raised
$13M
Stage
Seed
59

Phia

US est. 2025

AI personal shopping assistant that compares prices and resale value across thousands of brands

Raised
$43M
Stage
S-A
59

Avantos

US est. 2024

AI operating system for wealth and financial services firms

Raised
$35M
Stage
Seed
59

Inflection AI

ACQUIRED
US est. 2022

Personal AI for everyone

Raised
$1.6B
Stage
S-B
58

Adept AI

ACQUIRED
US est. 2022

AI that takes actions in any software

Raised
$350M
Stage
M&A
58

Liberate

US est. 2022

Reasoning AI agents that automate insurance sales, service and claims

Raised
$72M
Stage
S-B
58

Accrual

US est. 2024

AI-native platform unifying tax prep and review for accounting firms

Raised
$75M
Stage
VENTURE
58

Astrocade

US est. 2022

AI agents that let anyone create and remix games in minutes

Raised
$68M
Stage
S-B
58

Autonomize AI

US est. 2022

Agentic AI orchestration platform for healthcare and life sciences operations

Raised
$32M
Stage
S-A
58

Sola

US est. 2024

Agentic process automation that records a workflow once and runs it autonomously

Raised
$21M
Stage
Seed
58

Lassie

US est. 2024

AI agents that run the back office of small businesses end-to-end

Raised
$47M
Stage
S-A
58

Hex

US est. 2019

The collaborative data workspace with AI.

Raised
$70M
Stage
S-C
57

Poolside

Verified
US est. 2023

AI platform for software engineering

Raised
$500M
Stage
GROWTH
57

Writer

Verified
US est. 2020

Full-stack generative AI for enterprise

Raised
$321M
Stage
S-C
57

Exa

Verified
US est. 2022

Search for AI applications

Raised
$102M
Stage
S-B
57

Glean

Verified
US est. 2019

Work AI for the entire enterprise

Raised
$750M
Stage
S-F
57

Amperos Health

US est. 2024

AI agents for healthcare denial management and revenue recovery

Raised
$20.2M
Stage
S-A
57

Agency

US est. 2024

Agentic AI for customer success and customer experience

Raised
$20M
Stage
S-A
57

Edra

US est. 2024

AI agents that learn how your business runs, then automate the work

Raised
$36.5M
Stage
S-A
57

Levelpath

US est. 2022

AI-native procurement platform with autonomous purchasing agents

Raised
$100M
Stage
S-B
57

Mandolin

US est. 2024

AI agents that automate specialty drug access and buy-and-bill workflows

Raised
$40M
Stage
S-A
57

Serval

US est. 2024

Dual AI agents that automate enterprise IT service management safely

Raised
$127M
Stage
S-A
57

Luma AI

Verified
US est. 2021

Dream Machine — the world's most realistic AI video

Raised
$954M
Stage
S-C
56

Typeface

Verified
US est. 2022

Personalised generative AI for brand content

Raised
$165M
Stage
S-B
56

CrewAI

US est. 2024

Framework for orchestrating role-playing autonomous AI agents

Raised
$18M
Stage
S-A
56

Sesame

US est. 2023

Lifelike voice companions and AI smart glasses

Raised
$307.6M
Stage
S-B
56

Wordware

US est. 2023

Build AI agents by writing in plain English

Raised
$30M
Stage
Seed
56

CopilotKit

US est. 2023

Open-source framework for building in-app AI copilots and agentic UIs

Raised
$27M
Stage
S-A
56

Tasklet

US est. 2026

The cloud agent operating system for knowledge work

Raised
$20.5M
Stage
S-A
56

Keycard

US est. 2024

Identity and access management built for AI agents

Raised
$38M
Stage
S-A
56

Runloop

US est. 2024

Enterprise-grade cloud infrastructure and devboxes for AI coding agents

Raised
$7M
Stage
Seed
56

Enzo Health

US est. 2024

Agentic AI-native EHR connecting referral to reimbursement for home health

Raised
$26M
Stage
S-A
56

Kognitos

US est. 2020

Neurosymbolic agentic automation that runs business operations in plain English

Raised
$51.2M
Stage
S-A
56

Hightouch

US est. 2018

Go from insight to live campaign in minutes – powered by all your data, brand knowledge, and AI.

Raised
$150M
Stage
S-D
55

Norm Ai

US est. 2022

Regulatory AI agents that turn rules into compliance automation

Raised
$229.1M
Stage
S-C
55

Basis

US est. 2023

Autonomous AI agents built for accountants

Raised
$38M
Stage
S-A
55

Newo.ai

US est. 2023

AI receptionist handling voice, SMS, and WhatsApp for SMB front desks

Raised
$32M
Stage
S-A
55

Outmarket AI

US est. 2025

AI intelligence layer for insurance brokers and agencies

Raised
$17M
Stage
S-A
55

Kana

US est. 2025

Flexible AI agents for marketing operations and campaign execution

Raised
$15M
Stage
Seed
55

Harper

US est. 2024

AI-native commercial insurance brokerage for SMBs

Raised
$46.8M
Stage
S-A
55

Thoughtful AI

US est. 2020

Human-capable AI agents that automate healthcare revenue cycle management end to end

Raised
$35M
Stage
S-A
55

Keragon

US est. 2023

No-code, HIPAA-compliant workflow automation built for healthcare

Raised
$10.5M
Stage
Seed
55

LangChain

Verified
US est. 2022

Build context-aware AI applications

Raised
$125M
Stage
S-B
54

Moveworks

Verified
US est. 2016

AI copilot for enterprise IT and HR

Raised
$315M
Stage
ACQUISITION
54

Atomicwork

US est. 2022

Agentic ITSM and employee service platform

Raised
$39M
Stage
S-A
54

Tana

US est. 2021

AI-native workspace built around a live knowledge graph, Supertags, and voice-driven capture.

Raised
$25M
Stage
S-A
54

Flick

US est. 2025

Figma + Cursor, for AI Filmmaking

Raised
$6.5M
Stage
Seed
54

Fazeshift

US est. 2023

AI agents that automate accounts receivable and finance ops

Raised
$22M
Stage
S-A
54

Coverbase

US est. 2022

AI third-party risk and procurement platform for regulated companies

Raised
$20M
Stage
S-A
54

Composio

US est. 2023

Integration infrastructure that lets AI agents take action across 250+ apps

Raised
$29M
Stage
Seed
54

Dazzle

US est. 2024

An AI personal assistant from former Yahoo CEO Marissa Mayer

Raised
$8M
Stage
Seed
54

Open

US est. 2023

Unified AI customer support platform that resolves complex L2 and L3 issues

Raised
$8.5M
Stage
Pre-S
54

Natural

US est. 2025

Payment infrastructure for AI agents

Raised
$9.8M
Stage
Seed
54

Cresta

Verified
US est. 2017

Generative AI for the contact center

Raised
$280M
Stage
S-D
53

Imbue

US est. 2021

Tools to empower humans in the AI age with reliable, collaborative coding agents.

Raised
$232M
Stage
S-B
53

Sitch

US est. 2024

AI matchmaker app that blends LLM curation with human matchmaking expertise.

Raised
$6.7M
Stage
Seed
53

OpenHands

US est. 2024

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

Raised
$23.8M
Stage
S-A
53

Notte

US est. 2025

Reliable Web Agents for Enterprise

Raised
$3M
Stage
Pre-S
53

Worktrace AI

US est. 2024

AI that finds and ranks automation opportunities in your workflows

Raised
$9.3M
Stage
Seed
53

8Flow

US est. 2022

Workflow intelligence that surfaces ranked AI agent opportunities

Raised
$24.6M
Stage
S-A
53

Otto

US est. 2024

Autonomous AI travel agent for business travelers

Raised
$6M
Stage
Seed
53

BizTrip AI

US est. 2024

Agentic AI assistant for corporate travel without the search bar

Raised
$2.5M
Stage
Pre-S
53

Avallon

US est. 2024

AI agents that automate insurance claims operations

Raised
$4.6M
Stage
Seed
53

SRE.ai

US est. 2024

Natural-language AI agents that automate complex enterprise DevOps workflows

Raised
$7.2M
Stage
Seed
53

AutonomyAI

US est. 2024

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

Raised
$4M
Stage
Pre-S
53

Automat

US est. 2023

AI agents that operate computers like people to replace legacy RPA

Raised
$19M
Stage
S-A
53

Domo

Verified
US est. 2010

Business intelligence powered by AI

Raised
$690M
Stage
IPO
52

Sublime Security

US est. 2020

Autonomous email defense for the post-LLM threat era

Raised
$244M
Stage
S-C
52

Pace

US est. 2024

Agentic AI replacing insurance BPO work — submissions, policy servicing, claims and data entry.

Raised
$56M
Stage
S-B
52

Coval

US est. 2024

Simulation and evaluation platform for voice and chat AI agents, modeled on self-driving car testing.

Raised
$3.3M
Stage
Seed
52

Lance

US est. 2026

AI Agents That Run Hotel Operations

Raised
$500K
Stage
Seed
52

Carson

US est. 2026

Carson is a desktop AI app that generates custom, sharable workspaces

Raised
$500K
Stage
Seed
52

Lucent

US est. 2026

AI that automatically improves products from user behavior

Raised
$2.5M
Stage
Seed
52