✦ AI AI Company Comparison

OpenAI vs Relativity Space — IPO & Funding Comparison

Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.

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Some data on this page may be outdated. We're verifying.
OpenAI: verified May 26, 2026. Data for Relativity Space last verified: May 21, 2026.
Metric OpenAI Relativity Space
Valuation$852B$4.2B
Total Funding$55.4B$1.3B
IPO StatusPre-IPOPre-IPO
SectorArtificial IntelligenceAerospace & Defense
StagePre-IPOSeries D+
HeadquartersSan Francisco, CALong Beach, CA
CEOSam AltmanTim Ellis
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OpenAI

OpenAI is valued at $852B — the world's most valuable AI company, backed by $27B in funding. Track IPO readiness score, funding rounds, and timeline.

IndustryArtificial Intelligence
StagePre-IPO
IPO StatusPre-IPO
Valuation$852B
Total Funding$55.4B
HeadquartersSan Francisco, CA

Relativity Space

Aerospace company 3D-printing rocket engines and launch vehicles.

IndustryAerospace & Defense
StageSeries D+
IPO StatusPre-IPO
Valuation$4.2B
Total Funding$1.3B
HeadquartersLong Beach, CA

Frequently Asked Questions

What are the valuations of OpenAI and Relativity Space? +

OpenAI is valued at $852B. Relativity Space is valued at $4.2B. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.

How much has each company raised? +

OpenAI has raised $55.4B. Relativity Space has raised $1.3B.

What is the IPO status of OpenAI and Relativity Space? +

OpenAI is currently pre-IPO. Relativity Space is currently pre-IPO. Track both on TechStackIPO for S-1 filings and IPO announcements.

Are OpenAI and Relativity Space in the same sector? +

OpenAI operates in Artificial Intelligence, while Relativity Space operates in Aerospace & Defense.

What are the main differences between OpenAI and Relativity Space? +

OpenAI is a Artificial Intelligence company valued at $852B with $55.4B raised. Relativity Space is a Aerospace & Defense company valued at $4.2B with $1.3B raised. See TechStackIPO's full side-by-side comparison for IPO readiness scores, funding timelines, and investor data.

How can I invest in OpenAI or Relativity Space before their IPO? +

Accredited investors can access pre-IPO shares in OpenAI and Relativity Space 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.