Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.
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| Industry | Enterprise Software |
| Stage | Series C |
| IPO Status | Private |
| Valuation | $18.5B |
| Total Funding | $3.2B |
| Headquarters | San Francisco, CA |
Aerospace and defense company. Active S-1 filed April 1, 2026 targeting $75B Nasdaq IPO in June 2026 at $1.75T–$2T valuation — largest IPO in history. $15B combined revenue (SpaceX + xAI merger). Starlink: $10B revenue, 10M subscribers. Government contracts with NASA and DoD. 30% retail allocation.
| Industry | Aerospace & Defense |
| Stage | IPO Filed |
| IPO Status | Private |
| Valuation | $1.75T – $2T |
| Total Funding | $11.9B |
| Headquarters | Hawthorne, CA |
Notion is valued at $18.5B. SpaceX is valued at $1.75T – $2T. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.
Notion has raised $3.2B. SpaceX has raised $11.9B.
Notion is currently private. SpaceX is currently private. Track both on TechStackIPO for S-1 filings and IPO announcements.
Notion operates in Enterprise Software, while SpaceX operates in Aerospace & Defense.
Notion is a Enterprise Software company valued at $18.5B with $3.2B raised. SpaceX is a Aerospace & Defense company valued at $1.75T – $2T with $11.9B raised. See TechStackIPO's full side-by-side comparison for IPO readiness scores, funding timelines, and investor data.
Accredited investors can access pre-IPO shares in Notion and SpaceX through secondary market platforms, pre-IPO funds, and broker-dealer platforms that facilitate private company transactions. TechStackIPO's marketplace section tracks available access options for both companies. Pre-IPO investments carry higher risk and limited liquidity.