Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.
Scores, valuations, and signals for OpenAI, X-Energy, and 370+ companies. 5-min read every Tuesday.
OpenAI is valued at $920B — the world's most valuable AI company, backed by over $65B in funding. The company recently restructured as a Public Benefit Corporation to support its mission of developing safe AGI.
| Industry | Artificial Intelligence |
| Stage | Pre-IPO |
| IPO Status | Private |
| Valuation | $920.0B |
| Total Funding | $65.4B |
| Headquarters | San Francisco, CA |
X-Energy is a publicly traded nuclear energy company. IPOd April 23, 2026 at approximately $7.5B valuation. The company is the leading US developer of small modular reactors (SMRs). Amazon is a key backer.
| Industry | Nuclear Energy |
| Stage | Public |
| IPO Status | Public |
| Valuation | $7.5B |
| Total Funding | $2.1B+ |
| Headquarters | Rockville, MD |
Complete funding history, cap table, S-1 analysis, and investor breakdown for any company. Instant PDF download.
Or buy any single company report for $19
OpenAI is valued at $920.0B. X-Energy is valued at $7.5B. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.
OpenAI has raised $65.4B. X-Energy has raised $2.1B+.
OpenAI is currently private. X-Energy is currently already public. Track both on TechStackIPO for S-1 filings and IPO announcements.
OpenAI operates in Artificial Intelligence, while X-Energy operates in Nuclear Energy.
OpenAI is a Artificial Intelligence company valued at $920.0B with $65.4B raised. X-Energy is a Nuclear Energy company valued at $7.5B with $2.1B+ 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 OpenAI and X-Energy 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.