AI startups funded in May 2026

AI startups that announced a funding round in May 2026, across foundation models, infrastructure, dev tools, agents, vision, healthcare AI and more. 50 companies tracked this month — with amounts, rounds and investors. If you sell to freshly funded AI startups, these are the companies to reach the week they raise.

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AI startup

$4M

Series A

May 29, 2026

Kopa AI

Vertical SaaS AI · Vilnius, Lithuania

€2M

Pre-Seed

May 28, 2026

CO

Corgi

Vertical SaaS AI · San Francisco, United States

$106M

Series B1

May 28, 2026

MO

Modiqo

AI Infrastructure · United States

$3M

Pre-Seed

May 28, 2026

RE

Reactor

AI Infrastructure · San Francisco, United States

$59M

May 28, 2026

Kubera Health

Healthcare AI · San Francisco, United States

$6.5M

Seed

May 28, 2026

Anthropic

Foundation Models · San Francisco, United States

$65B

Series H

May 28, 2026

Slamcore

Computer Vision · London, United Kingdom

$14M

May 27, 2026

CO

Cognition

AI Agents · San Francisco, United States

$1B

May 27, 2026

Didit

AI Infrastructure · New York, United States

$7.5M

Seed

May 26, 2026

K25 AI

Vertical SaaS AI · Singapore, Singapore

$2M

May 25, 2026

Hark

Foundation Models

$700M

Series A

May 21, 2026

Modal Labs

AI Infrastructure · San Francisco, United States

$355M

Series C

May 21, 2026

EX

Exa

AI startup

$250M

Series C

May 20, 2026

Commure

Healthcare AI · Mountain View, United States

$70M

Series D

May 19, 2026

Zyphra

AI startup

$500M

Series B

May 19, 2026

Hellbender

AI startup

$12.5M

Seed

May 19, 2026

Searchable

AI startup

$14M

May 18, 2026

Decart

AI Infrastructure · Tel Aviv, Israel

$300M

May 18, 2026

Elephant Company

Vertical SaaS AI · Berlin, Germany

€5M

Series A

May 15, 2026

WI

Wirestock

AI Infrastructure · Los Angeles, United States

$23M

Series A

May 15, 2026

Sprouts.ai

AI Agents · San Francisco, United States

$9M

Pre-Series A

May 15, 2026

GovWell

AI startup

$25M

Series A

May 14, 2026

Holmes

AI Dev Tools · San Francisco, United States

€1.1M

Pre-Seed

May 14, 2026

Nectar Social

AI startup

$30M

Series A

May 14, 2026

Outmarket AI

Vertical SaaS AI · New York, United States

$17M

Series A

May 13, 2026

BranchLab

Healthcare AI · New York, United States

$26M

Series A

May 13, 2026

DO

Dolfin

AI startup

€2.1M

Seed

May 13, 2026

DesignVerse

AI Dev Tools · Bucharest, Romania

$5.5M

Seed

May 13, 2026

Havoc

Defense & Govtech AI · United States

$100M

Series A

May 12, 2026

Isomorphic Labs

Healthcare AI · London, United Kingdom

$2.1B

Series B

May 12, 2026

Monaco

AI Agents · San Francisco, United States

$50M

Series B

May 12, 2026

Fifth Dimension

AI startup

$26M

Series A

May 11, 2026

Ciridae

AI startup

$20M

Seed

May 11, 2026

NanoStruct

AI startup

€2.6M

Seed

May 11, 2026

Ditto

Healthcare AI · Rotterdam, Netherlands

$7.6M

Seed

May 11, 2026

Basata

Healthcare AI · Tempe, United States

$21M

Series A

May 8, 2026

Pit

Vertical SaaS AI · Stockholm, Sweden

$16M

Seed

May 7, 2026

CodeWords

AI Agents · London, United Kingdom

$9M

Seed

May 7, 2026

Moonlight AI

Healthcare AI · Lausanne, Switzerland

$3.3M

Seed

May 6, 2026

Illoca

AI startup

$13M

Seed

May 6, 2026

Elastics

AI Agents · Warsaw, Poland

$2M

Pre-Seed

May 6, 2026

Sierra

AI startup

$950M

Growth

May 6, 2026

XCaliber Health

Healthcare AI · United States

$6.5M

Seed

May 5, 2026

SL

Spring Labs

Vertical SaaS AI · Los Angeles, United States

$5M

May 5, 2026

RE

ReFiBuy

AI Agents · Raleigh, United States

$13.6M

Seed

May 5, 2026

Legora

AI startup

$50M

Series D

May 5, 2026

BL

Blitzy

AI Agents · United States

$200M

Growth

May 5, 2026

Banza

AI Agents · Bengaluru, India

$1 Million

Pre-Seed

May 4, 2026

Enzo Health

Healthcare AI · San Francisco, United States

$20M

Series A

May 4, 2026

Showing 50 companies (published with a short delay). The latest raises and founder contacts are available to members.