✦ AI AI Company Comparison

OpenAI vs Rocket Lab — IPO & Funding Comparison

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

● Data current Last verified: May 12, 2026
Metric OpenAI Rocket Lab
Valuation$852B$3.5B
Total Funding$55.4B$288M
IPO StatusPre-IPOPublic
SectorArtificial IntelligenceAerospace & Defense
StagePre-IPOPublic
HeadquartersSan Francisco, CALong Beach, CA
CEOSam AltmanPeter Beck
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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

Rocket Lab

End-to-end space company providing dedicated small satellite launches.

IndustryAerospace & Defense
StagePublic
IPO StatusPublic
Valuation$3.5B
Total Funding$288M
HeadquartersLong Beach, CA

Frequently Asked Questions

What are the valuations of OpenAI and Rocket Lab? +

OpenAI is valued at $852B. Rocket Lab is valued at $3.5B. 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. Rocket Lab has raised $288M.

What is the IPO status of OpenAI and Rocket Lab? +

OpenAI is currently pre-IPO. Rocket Lab is currently already public. Track both on TechStackIPO for S-1 filings and IPO announcements.

Are OpenAI and Rocket Lab in the same sector? +

OpenAI operates in Artificial Intelligence, while Rocket Lab operates in Aerospace & Defense.

What are the main differences between OpenAI and Rocket Lab? +

OpenAI is a Artificial Intelligence company valued at $852B with $55.4B raised. Rocket Lab is a Aerospace & Defense company valued at $3.5B with $288M 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 Rocket Lab before their IPO? +

Accredited investors can access pre-IPO shares in OpenAI and Rocket Lab 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.