# Sierra Space funding: rounds and investors

> Sierra Space has raised $550M across 1 round since 2026. Investors include LuminArx Capital Management, Coatue and General Atlantic.

Source: https://millionrounds.com/company/sierra-space (Millionrounds; every figure on the page links to its filing or article)

United States · [Series C startup](https://millionrounds.com/companies)

# Who invested in *Sierra Space*

One round we have observed, with the 7 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Aerospace & Space Defence Tech

Raised 8 months ago Valuation: $5.0B, Oct 2024

Funding summary Updated 26 Oct 2026

**$550M** raised across 1 round since 2026, from 2 sources

- **Latest round:** Series C, $550M Mar 2026
- **Led by:** LuminArx Capital Management
- **Investors:** 7 (1 led)

See who backed them

## The rounds

- **Mar 2026** Series C **$550M** [LuminArx Capital Management](https://millionrounds.com/fund/luminarx-capital-management) Lead [Coatue](https://millionrounds.com/fund/coatue-management) [General Atlantic](https://millionrounds.com/fund/general-atlantic) [MUFG Bank](https://millionrounds.com/fund/mufg-bank) [Atlantic](https://millionrounds.com/fund/atlantic) [Moore Strategic Ventures](https://millionrounds.com/fund/moore-strategic-ventures) [Andalusian Private Capital](https://millionrounds.com/fund/andalusian-private-capital) Reported by Crunchbase News and 1 other SEC filing: $550M sold, first sale Mar 2026

## Everyone who backed them

[LuminArx Capital Management](https://millionrounds.com/fund/luminarx-capital-management) Growth equity **1** round, led 1

[Coatue](https://millionrounds.com/fund/coatue-management) VC firm **1** round

[General Atlantic](https://millionrounds.com/fund/general-atlantic) Private equity **1** round

[MUFG Bank](https://millionrounds.com/fund/mufg-bank) Investment firm **1** round

[Atlantic](https://millionrounds.com/fund/atlantic) Private equity **1** round

[Moore Strategic Ventures](https://millionrounds.com/fund/moore-strategic-ventures) VC firm **1** round

[Andalusian Private Capital](https://millionrounds.com/fund/andalusian-private-capital) Growth equity **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=sierra-space).

## Also claim to have backed them

This firm lists Sierra Space as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[AE Industrial Partners](https://millionrounds.com/fund/ae-industrial-partners-lp) Private equity Per its own site

## Quick answers about Sierra Space

### Who invested in Sierra Space?

Sierra Space's investors include LuminArx Capital Management, Coatue, General Atlantic, MUFG Bank and Atlantic, and 2 more on record. LuminArx Capital Management led its latest round.

### How much has Sierra Space raised?

Sierra Space has raised $550M across 1 round since 2026.

### When did Sierra Space last raise?

Sierra Space's most recent round was a Series C of $550M in Mar 2026, led by LuminArx Capital Management.

### What was Sierra Space's biggest round?

Its most recent round, $550M in Mar 2026, is also its largest on record.

### Who backed Sierra Space first?

Sierra Space's first round on record, in Mar 2026, was backed by LuminArx Capital Management, Coatue and General Atlantic and 4 others.

### What stage is Sierra Space at?

Sierra Space's latest named round is a Series C, in Mar 2026.

### Where is Sierra Space based?

Sierra Space is based in the United States.

### Who led Sierra Space's rounds?

LuminArx Capital Management led the Series C in 2026.

## Companies like Sierra Space

In the same sector, and raised in the last eighteen months.

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**Apex** $1.1B · Oct 2026](https://millionrounds.com/company/apex)[**Xona** $512M · Oct 2026](https://millionrounds.com/company/xona)[**Jeevy Fabrication** Oct 2026](https://millionrounds.com/company/jeevy-fabrication)[**Applied Intuition** $640M · Oct 2026](https://millionrounds.com/company/applied-intuition)[**Kapta Space** $29M · Oct 2026](https://millionrounds.com/company/kapta-space)

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