Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.
Scores, valuations, and signals for Sila Nanotechnologies, SpaceX, and 370+ companies. 5-min read every Tuesday.
Battery materials company replacing graphite anodes with silicon for higher-energy EV batteries.
| Industry | Climate Tech |
| Stage | Series G |
| IPO Status | Pre-IPO |
| Valuation | $3.3B |
| Total Funding | $1.3B |
| Headquarters | Alameda, 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 |
Sila Nanotechnologies is valued at $3.3B. SpaceX is valued at $1.75T – $2T. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.
Sila Nanotechnologies has raised $1.3B. SpaceX has raised $11.9B.
Sila Nanotechnologies is currently pre-IPO. SpaceX is currently private. Track both on TechStackIPO for S-1 filings and IPO announcements.
Sila Nanotechnologies operates in Climate Tech, while SpaceX operates in Aerospace & Defense.
Sila Nanotechnologies is a Climate Tech company valued at $3.3B with $1.3B 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 Sila Nanotechnologies 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.