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The AI Stack

The complete tracker for AI companies from seed to IPO. OpenAI, Anthropic, xAI, Mistral, Cohere, and every major foundation model, AI infrastructure, and AI application company.

115
Companies Tracked
$113B
Total Funding Raised
53
Pre-IPO Companies
1
S-1 Filed
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Top AI Companies
Ranked by valuation — 115 companies tracked
1
OpenAI Pre-IPO

OpenAI is valued at $852B — the world's most valuable AI company, backed by $27B in funding. Track IPO readiness score, funding rounds, and timeline.

Valuation: $852B Raised: $27B Pre-IPO
2
Anthropic Pre-IPO

Anthropic builds Claude — one of the world's leading AI systems. Valued at $380B with $18.5B raised. Track IPO readiness, funding rounds, and timeline.

Valuation: $380B Raised: $18.5B Pre-IPO
3
Palantir Technologies S-1 Filed

Data analytics and AI platform for government intelligence and enterprise operations.

Valuation: $200B Raised: $2.7B Public
4
Databricks Pre-IPO

Databricks is the world's most valuable data and AI platform — $134B valuation, $4.2B raised. Widely expected to IPO. Track readiness score and timeline.

Valuation: $134B Raised: $4.2B Series D+
5
xAI Pre-IPO

xAI — Elon Musk's AI company behind Grok, valued at $50B with $12B raised. Track IPO readiness score, funding rounds, and timeline on TechStackIPO.

Valuation: $50B Raised: $18B Series B
6
CoreWeave public

GPU-specialized cloud computing provider for AI workloads.

Valuation: $35B Raised: $12.1B Recent IPO
7
Cursor (Anysphere) Pre-IPO

Cursor is the AI code editor trusted by millions of developers — $29.3B valuation. Track funding rounds, IPO readiness score, and timeline on TechStackIPO.

Valuation: $29.3B Raised: $60M Series B
8
Perplexity AI Pre-IPO

AI-powered answer engine replacing traditional search with cited, conversational results.

Valuation: $20B Raised: $900M Series D+
9
SentinelOne public

AI-powered cybersecurity platform providing autonomous endpoint detection and response.

Valuation: $15B Raised: $696M Public
10
Nscale private

Nvidia-backed AI cloud infrastructure — builds and operates GPU data centers for AI training and inference in the UK.

Valuation: $14.6B Raised: $2.0B Series C
11
Scale AI private

Data labeling and AI infrastructure platform.

Valuation: $14B Raised: $1.6B Series D+
12
Harvey Pre-IPO

AI for legal professionals — automates legal research, document drafting, and contract analysis for elite law firms.

Valuation: $11B Raised: $200M Series D
13
ElevenLabs Pre-IPO

AI voice synthesis platform generating ultra-realistic multilingual speech.

Valuation: $11B Raised: $281M Series C
14
Midjourney Pre-IPO

Self-funded AI image generation platform with $500M+ in annual revenue and 21M+ users.

Valuation: $10B Raised: $150M Series B
15
Crusoe Energy Pre-IPO

Crusoe Energy builds and operates AI-optimized data centers powered by stranded and renewable energy, providing cost-effective, sustainable GPU cloud infrastructure for AI workloads.

Valuation: $10B Series D
16
Astera Labs public

Semiconductor connectivity solutions company enabling AI and cloud data center infrastructure.

Valuation: $10B Raised: $330M Public
17
Replit Pre-IPO

AI-powered coding platform that lets anyone build and deploy software using natural language.

Valuation: $9B Raised: $522M Series D+
18
Tempus AI public

AI-powered precision medicine platform analyzing clinical and molecular data.

Valuation: $8B Raised: $1.3B Recent IPO
19
Mistral AI Pre-IPO

European AI company building open and frontier language models.

Valuation: $6B Raised: $1.1B Series B
20
Lambda Pre-IPO

GPU cloud computing platform for AI training and inference.

Valuation: $5.9B Raised: $1.5B Series D+
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Sector Pipeline
Company count by funding stage
Seed
3
Series A
33
Series B
28
Series C
17
Series D
3
Pre-IPO
2
Series D+
16
Public
7
series_b
3
Recent IPO
2
series_d
1
💰
Recent Funding Rounds
Latest deals in the AI sector
Beacon Biosignals
Series B Extension · Apr 2026
$97.2M
Led by JSL Health, Palo Santo
Alcatraz AI
Series B · Apr 2026
$50M
Sift
Series B · Apr 2026
$42M
Led by StepStone Group
Cognichip
Series A · Apr 2026
$60M
Led by Seligman Ventures
Harvey
Series D · Mar 2026
$200M
Led by GIC, Sequoia Capital
Frore Systems
Series D · Mar 2026
$143M
Led by MVP Ventures
RoboForce
Seed+ · Mar 2026
$52M
Led by YZi Labs
Legora
Series D · Mar 2026
$550M
Led by Accel
Axiom Math
Series A · Mar 2026
$200M
Led by Menlo Ventures
Rhoda AI
Series B · Mar 2026
$450M
Led by Premji Invest
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Sector Themes
Key narratives driving the AI sector in 2026
1

Foundation model consolidation driving valuation compression

2

AI inference chips becoming the new bottleneck

3

Enterprise AI agents replacing SaaS point solutions

4

Open-source models closing the capability gap

5

Multimodal AI unlocking physical world applications

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