In-space transportation and orbital transfer vehicle developer founded by ex-SpaceX engineers
Defense & Space📍 El Segundo, CAFounded 2021
Current Valuation
$1.2B
as of 2025-Q3
UNICORN
IPO Outlookprivate
Is Impulse Space going public?
No. Impulse Space has no imminent IPO plans on record. It is still private.
What is Impulse Space's valuation in 2026?
Impulse Space is valued at $1.2B as of 2025-Q3, set by its Series C ($294.53M, Jun 2025). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Impulse Space builds orbital transfer vehicles (OTVs) and in-space propulsion for last-mile delivery between orbits. Founded by SpaceX co-founder Tom Mueller, who designed the Merlin engine. Operating multiple Mira spacecraft and developing the Helios high-energy kick stage.
Company Profile
CEO
Tom Mueller
Founded
2021
HQ
El Segundo, CA
Employees
~250
Total Raised
$525M
Last Round
Series C — $294.53M (Jun 2025) · Lead: Linse Capital
IPO Status
no imminent plans
Fundraising Status
Series C · $294.53M · 1y 2mo ago
no imminent plansTotal raised $525M
Secondary Market
Implied price / share
$74.95
Open interest
24
Secondary price return by period
Implied per-share price from private secondary transactions, as of Jun 2026. This is a point estimate, not a quote — the feed carries no bid, ask or spread, and a secondary print is evidence of what someone paid on that date rather than a live market. Compare across every tracked name →
Latest Funding Round
Round
Amount
Date
Lead Investor
Post-Money
Series C
$294.53M
Jun 2025
Linse Capital
—
Vertical Intelligence — Defense / Aerospace
Federal awards
8
prime contracts, last 36 months
Obligated
$46.23M
top: Department of Defense
Largest award
$28.31M
Department of Defense
Latest award
2026-01-12
Largest award: IMPULSE SPACE SBIR PHASE III (FA880925CB001)
Name-verified against recipient "IMPULSE SPACE, INC." on USASpending.gov as of 2026-08-19. Prime awards only — subcontracts and classified work are not visible in the public registry. Verify on USASpending.gov ↗
Talent Signal
Hiring trend
● First snapshot
trend accrues with monthly sweeps
Open roles
135
via careers page
Product-build share
93%
engineering, research, product, design
Trajectory
steady
heavy product build — 93% of open roles are product-building functions (engineering/research/product) — 63 of 135 open roles are hardware.
Actively hiring with no tracked executive churn.
Open roles by month
Open roles by function
■ product-building ■ go-to-market / G&A
Medical, Dental & Vision iconResponsible Engineering iconSenior Development Test Engineer\\ \\ Redondo BeachSolar Array Test Engineer\\ \\ Redondo BeachTest Automation Engineer (Software)\\ \\ Redondo BeachAutomation and Controls Engineer\\ \\ Redondo Beach
Counted from Impulse Space's live job board as of 2026-08-17; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Founders & Key People
Tom Mueller
Investors
Linse Capital · Founders Fund · RTX Ventures · DCVC · Lux Capital
Products
Mira (OTV)
Helios (kick stage)
Competitors
Momentus · D-Orbit · Astroscale
SpaceDefenseOrbital TransferFounders Fund Backed
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2025-Q3. Refreshed quarterly.