Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.
Scores, valuations, and signals for SpaceX, Sylvera, and 370+ companies. 5-min read every Tuesday.
Aerospace and space transportation company. S-1 CONFIRMED filed May 20, 2026 (CIK 0001181412). Roadshow starts June 8, 2026. IPO target June 18–30, 2026. $75B raise at $275B valuation — largest IPO in history. Lead underwriters: Morgan Stanley, Goldman Sachs, JPMorgan. 30% retail allocation. Government contracts: NASA, DoD, Space Force. Starlink: 10M+ subscribers, $10B+ revenue.
| Industry | Aerospace & Defense |
| Stage | Pre-IPO |
| IPO Status | Private |
| Valuation | $275B |
| Total Funding | $11.9B |
| Headquarters | Starbase, TX |
Carbon market intelligence platform providing independent ratings and data on carbon offset projects.
| Industry | Climate & Energy |
| Stage | Series A |
| IPO Status | Private |
| Valuation | $100M |
| Total Funding | $20M |
| Headquarters | London, UK |
SpaceX is valued at $275B. Sylvera is valued at $100M. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.
SpaceX has raised $11.9B. Sylvera has raised $20M.
SpaceX is currently private. Sylvera is currently private. Track both on TechStackIPO for S-1 filings and IPO announcements.
SpaceX operates in Aerospace & Defense, while Sylvera operates in Climate & Energy.
SpaceX is a Aerospace & Defense company valued at $275B with $11.9B raised. Sylvera is a Climate & Energy company valued at $100M with $20M 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 SpaceX and Sylvera 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.