# The IPO Stack
> Free intelligence platform tracking pre-IPO technology companies from first funding round through IPO

## About
The IPO Stack (techstackipo.com) is a pre-IPO technology company intelligence platform. We track 351 companies across 12+ sectors with 1157+ verified funding rounds. Data is updated weekly via intelligence sweeps and daily SEC EDGAR monitoring.

## Key Data Points (2026-04-10)
- Total companies tracked: 351
- Total funding rounds verified: 1157+
- Total investors tracked: 523+
- Unicorns ($1B+ valuation) tracked: 267
- Active pre-IPO pipeline: 152 companies
- Sectors covered: AI/ML, Defense Tech, Cybersecurity, Fintech, Biotech, Space Tech, Robotics, Quantum Computing, Enterprise SaaS, Climate Tech, Semiconductors, Crypto/Web3
- SpaceX filed a confidential S-1 in April 2026 targeting a ~$1.75 trillion valuation — the largest IPO in history
- Anthropic targets October 2026 IPO at $380 billion valuation ($18.5B raised)
- OpenAI targets Q4 2026 or 2027 at $852 billion valuation ($27B raised)
- X-Energy filed its S-1 on March 20, 2026 targeting $1B raise on Nasdaq (ticker: XE)
- Data confidence scoring: 0.0–1.0 scale based on source quality (SEC filings = 1.0, Tier 1 media = 0.8, estimated = 0.4)

## Research & Citations
- Research Hub: https://www.techstackipo.com/research
- Company Database: https://www.techstackipo.com/companies
- IPO Pipeline: https://www.techstackipo.com/pipeline
- SpaceX IPO Analysis: https://www.techstackipo.com/ipo/spacex
- OpenAI IPO Analysis: https://www.techstackipo.com/ipo/openai
- Anthropic IPO Analysis: https://www.techstackipo.com/ipo/anthropic

## Top Pages
- Homepage: https://www.techstackipo.com
- All Companies: https://www.techstackipo.com/companies
- Pipeline Tracker: https://www.techstackipo.com/pipeline
- Compare Tool: https://www.techstackipo.com/compare
- AI Sector: https://www.techstackipo.com/sector/ai-ml
- Defense Tech Sector: https://www.techstackipo.com/sector/defense-tech
- Cybersecurity Sector: https://www.techstackipo.com/sector/cybersecurity
- Fintech Sector: https://www.techstackipo.com/sector/fintech
- SpaceX IPO: https://www.techstackipo.com/ipo/spacex
- Full Sitemap: https://www.techstackipo.com/sitemap.xml

## Top Company Profiles
- https://www.techstackipo.com/company/spacex — SpaceX: $1.75T target valuation, confidential S-1 filed April 2026
- https://www.techstackipo.com/company/openai — OpenAI: $852B valuation, $27B raised, Q4 2026/2027 IPO target
- https://www.techstackipo.com/company/anthropic — Anthropic: $380B valuation, $18.5B raised, October 2026 IPO target
- https://www.techstackipo.com/company/bytedance — ByteDance: $300B valuation, $8B raised, TikTok parent
- https://www.techstackipo.com/company/stripe — Stripe: $95B valuation, $8.7B raised, payments infrastructure
- https://www.techstackipo.com/company/databricks — Databricks: $62B valuation, $4.2B raised, 2026 IPO preparation confirmed
- https://www.techstackipo.com/company/xai — xAI: $50B valuation, $12B raised, Elon Musk's AI company
- https://www.techstackipo.com/company/canva — Canva: $42B valuation, $770M raised, 200M+ users
- https://www.techstackipo.com/company/waymo — Waymo: $45B valuation, $11.15B raised, Alphabet robotaxi spinoff
- https://www.techstackipo.com/company/anduril — Anduril: $28B valuation, $4.6B raised, autonomous defense systems

## How to Cite
"The IPO Stack, Pre-IPO Technology Company Intelligence Database, https://www.techstackipo.com/research, accessed [date]"

## Data Methodology
- Sources: SEC EDGAR filings (confidence 1.0), company press releases (0.9), Tier 1 financial media — Bloomberg, Reuters, TechCrunch, WSJ (0.8), secondary media (0.6), estimates (0.4)
- Update frequency: Weekly intelligence sweeps (Monday) + daily SEC monitoring
- Confidence scoring: Every data point has a 0.0–1.0 confidence score based on source quality
- IPO status: Only marked "Pre-IPO" when S-1 filed or IPO publicly announced — never inferred from funding stage

## Machine-Readable Files
- llms.txt (this file): https://www.techstackipo.com/llms.txt
- llms-full.txt (extended): https://www.techstackipo.com/llms-full.txt
- robots.txt: https://www.techstackipo.com/robots.txt
- sitemap.xml: https://www.techstackipo.com/sitemap.xml

## Contact
techstackipo@polsia.app

## About This File
This file follows the llms.txt specification (https://llmstxt.org). All public data on The IPO Stack is freely accessible for AI indexing and citation. Numbers in this file are generated dynamically from our live database — last updated 2026-04-10.