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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
$211B
Total Funding Raised
49
Pre-IPO Companies
15
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: $55.4B 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: $53.0B Series D+
3
Palantir Technologies S-1 Filed

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

Valuation: $312B Raised: $2.7B Public
4
Databricks S-1 Filed

Databricks is the world's leading Data Intelligence Platform, valued at $134B with over $4.8B in annual revenue. The company filed for IPO in February 2026 and is currently in its quiet period.

Valuation: $134B Raised: $19.2B Public
5
xAI Pre-IPO

xAI — Elon Musk's AI company behind Grok, valued at $100B with $30B raised. The company operates the world's largest AI supercomputer cluster and focuses on accelerating human scientific discovery.

Valuation: $80B Raised: $45B Series B
6
CoreWeave S-1 Filed

GPU-specialized cloud computing provider for AI workloads.

Valuation: $35B Raised: $15.1B 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
Scale AI S-1 Filed

Data labeling and AI infrastructure platform.

Valuation: $14B Raised: $2.6B Pre-IPO
9
Perplexity AI Pre-IPO

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

Valuation: $20B Raised: $900M Series D+
10
Astera Labs S-1 Filed

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

Valuation: $10B Raised: $330M Public
11
Lambda Pre-IPO

GPU cloud computing platform for AI training and inference.

Valuation: $5.9B Raised: $2.5B Series E
12
SentinelOne public

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

Valuation: $15B Raised: $696M Public
13
Nscale S-1 Filed

AI hyperscaler building vertically-integrated GPU cloud infrastructure. $2B Series C (March 2026) at $14.6B valuation. Backed by NVIDIA, Dell, Aker ASA. Hired Goldman Sachs and JPMorgan as IPO underwriters — targeting public listing H2 2026.

Valuation: $14.6B Raised: $4.5B+ Series C
14
Groq Pre-IPO

AI inference chip company delivering the world's fastest LLM inference.

Valuation: $6.2B Raised: $3.6B Series F
15
AMI Labs private

World models research lab founded by Yann LeCun — develops autonomous AI systems that understand physical and social reality.

Valuation: ~$1.3B Raised: $1.0B Seed
16
Cohere Pre-IPO

Enterprise AI platform for natural language processing and large language models.

Valuation: $9.2B Raised: $1.585B Series F
17
Legora S-1 Filed

AI-native legal platform — automates legal research, contract review, and due diligence for law firms and legal teams.

Valuation: $5.55B Raised: $550M Series F
18
Tempus AI S-1 Filed

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

Valuation: $8B Raised: $1.3B Recent IPO
19
Replit S-1 Filed

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

Valuation: $9B Raised: $822M Pre-IPO
20
Crusoe Energy S-1 Filed

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 E
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IPO Watchlist
Expected to IPO in next 12-24 months
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Sector Pipeline
Company count by funding stage
Seed
2
Series A
33
Series B
26
Series C
6
Series D
8
Series E
10
Series F
4
Pre-IPO
3
Public
9
Series D+
7
series_b
2
Recent IPO
2
Series H
1
series_c
1
series_d
1
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Recent Funding Rounds
Latest deals in the AI sector
Anthropic
Secondary · Apr 2026
$5B
Led by Caplight
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
OpenAI
Series H · Mar 2026
$40B
Led by SoftBank Vision Fund, Amazon
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
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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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