Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.
Scores, valuations, and signals for Madison Air, SpaceX, and 370+ companies. 5-min read every Tuesday.
Global manufacturer and innovator of indoor air quality and HVAC solutions for residential, commercial, and industrial markets.
| Industry | Building Materials |
| Stage | Recent IPO |
| IPO Status | Public |
| Valuation | $2.2B |
| Total Funding | $1.65B |
| Headquarters | Nashville, TN |
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 |
Madison Air is valued at $2.2B. SpaceX is valued at $275B. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.
Madison Air has raised $1.65B. SpaceX has raised $11.9B.
Madison Air is currently already public. SpaceX is currently private. Track both on TechStackIPO for S-1 filings and IPO announcements.
Madison Air operates in Building Materials, while SpaceX operates in Aerospace & Defense.
Madison Air is a Building Materials company valued at $2.2B with $1.65B raised. SpaceX is a Aerospace & Defense company valued at $275B 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 Madison Air 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.