May 2026 AI Funding Roundup

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$117.8B+ raised across 184 deals in May 2026. Anthropic, DeepSeek, Anduril Industries lead the pack.

$56.5B
Total Raised
10
Deals
$5.6B
Avg Deal Size
#1
Anthropic logo
Anthropic
Foundation Models & AGI
Debt Financing

AI safety company building reliable, interpretable, and steerable AI systems. Creator of Claude, a frontier large language model known for advanced reasoning, coding, and analysis. Anthropic pioneered Constitutional AI for model alignment and leads research in mechanistic interpretability. A top competitor in the foundation model race alongside OpenAI and Google DeepMind.

$40.0B
Val: $266.7B
May 29, 2026
Founded: 2021HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#2
DeepSeek logo
DeepSeek
Foundation Models & AGI
Undisclosed

Develops foundation models and AGI research platforms for organizations and research institutions, focusing on large-scale model capabilities and deployment.

$4.0B
Val: $26.7B
May 8, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#3
Anduril Industries logo
Anduril Industries
AI Defense
Undisclosed

Defense technology company building AI-powered autonomous systems for national security. Anduril's Lattice platform provides real-time sensor fusion and autonomous command-and-control across domains including counter-drone systems, autonomous submarines (Dive-LD), and surveillance towers. A leading force in modernizing Western defense procurement through software-defined hardware.

$5.0B
Val: $33.3B
May 13, 2026
Founded: 2017HQ: Costa Mesa, CA

Investors

Undisclosed (Lead)
View Company Profile
#4
Circle logo
Circle
Deep Tech
Token presale

Develops and operates the Arc blockchain and associated blockchain infrastructure and services for the digital asset ecosystem.

$222M
Val: $1.5B
May 13, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#5
Isomorphic Labs logo
Isomorphic Labs
Enterprise AI
Series B

Develops artificial intelligence technologies and platforms for commercial and research users, affiliated with Google and recently securing over $2 billion.

$2.0B
Val: $13.3B
May 13, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#6
AtlasEdge logo
AtlasEdge
AI Infrastructure
Debt Financing

The company develops European data center infrastructure for organizations requiring scalable, high-capacity compute facilities.

$1.4B
Val: $9.3B
May 28, 2026
HQ: Europe

Investors

Undisclosed (Lead)
View Company Profile
#7
Helsing logo
Helsing
Enterprise AI
Undisclosed

Develops AI technologies and platforms for enterprise and commercial customers, providing models and services to businesses and backed by major venture investors.

$1.2B
Val: $8.0B
May 11, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#8
Cognition logo
Cognition
AI Developer Tools
Undisclosed

Develops AI coding tools aimed at helping software teams automate and accelerate programming workflows for software development.

$1.0B
Val: $6.7B
May 27, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#9
Sierra logo
Sierra
Enterprise AI
Undisclosed

Provides enterprise AI products and services to help organizations deploy and manage AI at scale across enterprises worldwide.

$950M
Val: $6.3B
May 4, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#10
Hark logo
Hark
Consumer AI
Series A

Develops a secretive “universal” AI interface intended to provide a single access layer for interacting with artificial intelligence systems.

$700M
Val: $3.5B
May 22, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile

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