Relativity Space is no longer in the active top-40 roster for this sector — snapshot as of October 27, 2026. News and free pipes continue to update; predictions, hard problems, theses and other authored fields are frozen at the date above.
Relativity Space is an Additive Manufacturing company founded in 2015 and based in Long Beach, United States. It has raised $2.4B in total funding, most recently a Series F in 2023.
| Date | Stage | Amount | Valuation | Lead investors |
|---|---|---|---|---|
| Nov 14, 2023 | Series F | $1.1B | — | — |
| Jun 8, 2021 | Series E | $650M | $4.2B | Fidelity Investments |
| Nov 23, 2020 |
| Series D |
| $500M |
| $2.3B |
| Tiger Global |
| Oct 1, 2019 | Series C | $140M | — | BOND, Tribe Capital |
| Mar 27, 2018 | Series B | $35M | — | Playground Global |
| Jul 1, 2016 | Series A | $10.1M | — | Social Capital |
| Mar 1, 2016 | Seed | $620K | — | Y Combinator |
Two-stage fully reusable medium-lift launch vehicle powered by 13 Aeon R LOX-methane engines (269,000 lbf each at sea level), targeting the LEO constellation market with a launch from Cape Canaveral Complex 16 in late 2026. Primary structures use friction-stir-welded aluminum; engines are manufactured via Relativity's Stargate powder-bed-fusion and wire-arc-additive platforms, enabling a 60-day print-to-launch cycle. Over 160 critical design reviews completed as of March 2025.
Proprietary large-scale metal 3D printing system combining laser powder bed fusion (PBF) and wire arc additive manufacturing (WAAM) for producing rocket engine and structural components. Designed to reduce part count from tens of thousands to hundreds and compress production lead times from years to weeks. Stargate systems at Relativity's Long Beach factory manufacture Aeon R engines and structural domes for Terran R, demonstrating factory-scale additive for aerospace.
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