March 2026 AI Funding Roundup

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$152.2B+ raised across 141 deals in March 2026. OpenAI, Nebius, Nscale lead the pack.

$23.2B
Total Raised
10
Deals
$2.3B
Avg Deal Size
#1
OpenAI logo
OpenAI
Foundation Models & AGI
Undisclosed

AI research and deployment company behind ChatGPT, the GPT series of large language models, DALL-E image generation, and the Sora video model. The fastest-growing consumer AI platform with over 200 million weekly active users.

$10.0B
Val: $66.7B
Mar 25, 2026
Founded: 2015HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#2
Nebius logo
Nebius
AI Infrastructure
Undisclosed

Builds and operates large-scale AI infrastructure and capacity, expanding rapidly after a $4.3B raise and announcing strategic deals with Nvidia and Meta.

$4.3B
Val: $28.7B
Mar 23, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#3
Nscale logo
Nscale
AI Infrastructure
Series C

Full-stack AI cloud infrastructure provider operating renewable-energy-powered GPU data centers across Europe. Nscale offers on-demand access to large-scale NVIDIA GPU clusters for AI training and inference, with a focus on sustainable computing and European data sovereignty. Positioned as a key player in building sovereign AI infrastructure outside US hyperscalers.

$2.0B
Val: $14.6B
Mar 9, 2026
HQ: London, United Kingdom

Investors

Aker ASA (Lead)8090 Industries (Lead)CitadelDellJane StreetLenovoNVIDIANokiaPoint72
View Company Profile
#4
Nebius Group NV logo
Nebius Group NV
AI Infrastructure
Undisclosed

AI infrastructure and GPU cloud platform spun out of Yandex, providing scalable compute for AI training and inference workloads. Nebius operates large-scale GPU clusters in Europe and the US, offers a managed ML platform, and serves as a key alternative to hyperscaler clouds for AI startups and enterprises needing dedicated compute capacity at scale.

$2.0B
Val: $13.3B
Mar 11, 2026
Founded: 2024HQ: Amsterdam, Netherlands

Investors

NVIDIA (Lead)
View Company Profile
#5
Rivian logo
Rivian
AI Robotics
Undisclosed

Produces electric vehicles and partners with mobility platforms to support robotaxi and other autonomous mobility initiatives.

$1.3B
Val: $8.3B
Mar 20, 2026
Founded: 2009HQ: Irvine, CA

Investors

Undisclosed (Lead)
View Company Profile
#6
AMI Labs logo
AMI Labs
Foundation Models & AGI
Undisclosed

AMI Labs is an AI research lab co-founded by Turing Award winner Yann LeCun, focused on building world models that learn predictive representations of how the physical world works. Their research on self-supervised learning and Joint Embedding Predictive Architectures represents a fundamentally different approach to AI that could enable machines to reason and plan like humans.

$1.0B
Val: $6.9B
Mar 10, 2026
Founded: 2025HQ: New York, NY

Investors

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

Develops AI products and services and on 2026-03-19 closed an undisclosed $1.0 billion financing reported as part of a new $22 billion funding event.

$1.0B
Val: $6.7B
Mar 19, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#8
Whoop logo
Whoop
AI Consumer Hardware
Series G

Develops wearable fitness technology and raised $575M in a Series G from athletes, celebrities and institutional investors, reaching a $10.1B valuation.

$575M
Val: $3.8B
Mar 31, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile
#9
Legora logo
Legora
Enterprise AI
Series D

Swedish AI-powered legal technology platform automating legal research and analysis for law firms and legal departments. Legora uses large language models trained on legal corpora to draft memos, review contracts, and surface relevant case law in seconds, enabling lawyers to focus on strategic counsel while the platform handles time-intensive research and document analysis tasks.

$550M
Val: $5.5B
Mar 10, 2026
HQ: Stockholm, Sweden

Investors

Undisclosed (Lead)
View Company Profile
#10
Mind Robotics logo
Mind Robotics
AI Robotics
Undisclosed

Intelligent robotics company developing collaborative robots for industrial manufacturing, leveraging production-scale data from a strategic partnership with Rivian.

$500M
Val: $3.3B
Mar 12, 2026
HQ: San Francisco, CA

Investors

Undisclosed (Lead)
View Company Profile

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