Sierra Space

Sierra Space is a commercial space company that specializes in the development of advanced space technologies and solutions.

Robotics and hardware Defense and security Manufacturing and industrial

Latest funding

$550M Series B+ · March 5, 2026

Led by LuminArx Capital Management LP · Source: Pulse 2.0

Total raised: $840M across 2 sourced rounds

All 3 rounds ↓

Website: sierraspace.com.

X: @SierraSpaceCo · 52,357 followers.

LinkedIn: linkedin.com.

Categories: Robotics and hardware Defense and security Manufacturing and industrial.

Sectors: Advanced Materials, Aerospace, Industrial Manufacturing, Military, Space Travel.

Stage: Series B+.

Based in: Louisville, United States.

Total raised: $840M in 2 sourced rounds.

Last round: Mar 5, 2026 · 252 days ago.

Headcount: 1001–5000 employees.

On Recent Funding since: Nov 8, 2026.

Signals

X account@SierraSpaceCo · created Apr 6, 2021 (5 years old) · 52,357 followers

Website registeredMar 9, 2006 (20 years old)

TIMELINE · MONEY RAISED

Sierra Space | 227 days from X account to first raise on record

@SierraSpaceCo·Raised $840M in 2 sourced rounds·1 signal before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

March 5, 2026
Series B+ · $550M
LLuminArx Capital Management LP (lead), AAndalusian Private Capital, CCoatue, GGeneral Atlantic, MMoore Strategic Ventures
Source: Pulse 2.0
September 26, 2023
Series B+ · $290M
KKanematsu Corporation (lead), MMUFG Bank (lead), TTokio Marine & Nichido Fire Insurance Dubai Branch (lead), AAE Industrial Partners, BBlackRock Private Equity Partners, CCoatue, GGeneral Atlantic, MMoore Strategic Ventures, VVice Family Trust
Source: startupintros.com
November 19, 2021
Series A · amount undisclosed
CCoatue (lead), GGeneral Atlantic (lead), MMoore Strategic Ventures (lead), AAE Industrial Partners, BBlackRock Private Equity Partners
Source: startupintros.com
April 6, 2021
X account created
March 9, 2006
Website created

Founders and team

EO
Eren Ozmen Founder

LinkedIn
FO
Fatih Ozmen Founder

LinkedIn
AP
Amish Patel Chief Operating Officer
AW
Angie Wise Senior Vice President Safety & Mission Assurance
DJ
Daniel Jablonsky Chief Executive Officer
HH
Heidi Hendrix Chief People Officer
JP
Jill Pomeroy Senior Vice President of Government Relations
KG
Kelly Garehime Chief Legal and Ethics Officer & Corporate Secretary
SN
Shay Nicole Digital Communications Manager
TM
Tom Marshburn Chief Medical Officer

Investors

Companies like Sierra Space

BBAAS Technologies$518.5K Pre Seed · Jul 2026
OOrienspace$83.64M Series B+ · Jan 2024
MMuon Space$250M Series B+ · Aug 2026
AArgo Space$6M Seed · Oct 2025
LLoft Orbital$170M Series B+ · Jan 2025
IInversion Space$44M Seed · Nov 2024

Other companies backed by LuminArx Capital Management LP

AAxiom Space$525M Series B+ · Jun 2026
UUpgrade$165M Series B+ · Oct 2025

LuminArx Capital Management LP portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/sierra-space (get a free API key).