Impulse Space
In-space transportation company building orbital transfer vehicles.
Impulse Space develops in-space transportation vehicles (orbital transfer vehicles and kick stages). Founded in 2021 by Tom Mueller, SpaceX employee #1 and chief engineer of the Merlin and Draco engines, the company is based in Redondo Beach, CA with a Boulder, CO office and Mojave test operations.
Overview
- Headquarters
- Redondo Beach, CA
- Founded
- 2021
- Employees
- Undisclosed
- Total funding
- >$1B
- Stage
- Series D
- Status
- active
- Domains
- Website
- www.impulsespace.com
Investors11
- FundFounders FundMulti-stage VC known for early bets on SpaceX, Palantir, and Anduril.
- FundLux CapitalScience and tech VC with deep defense portfolio, early Anduril backer.
- FundRTX VenturesCorporate VC arm of RTX Corporation investing in aerospace and defense startups.
- FundDCVCDeep tech VC firm investing in AI-enabled solutions for defense, climate, and industry.
- FundSpace CapitalVC firm investing at the intersection of space technology and global markets.
- FundDFJ GrowthGrowth-stage VC arm of Draper Fisher Jurvetson, investing in defense and deep tech.
- FundValor Equity PartnersChicago growth-equity firm; led Anduril's Series E round.
- FundTamarack GlobalVenture capital firm; participated in Isembard's $50M Series A (March 2026).
- FundTrousdale VenturesVenture capital firm; participated in Venus Aerospace's $91M Series B round (July 2026).
- FundAlumni VenturesMulti-manager venture platform giving individual/accredited investors co-investment access alongside lead VCs across sectors.
- FundOvermatch VenturesDefense-focused venture capital investor in Overland AI's Series A and Series B rounds.
Cap table0
Approximate ownership by holder. Indexed holders link to their records.
Raised per round
Percentages marked ~ are not disclosed. Some are a generic VC-pattern model (founders/team weighted heaviest, option pool lightest, other holders evenly) sized to whatever's left undisclosed — a standard industry shape, not this company's actual cap table.
| Holder | Instrument | Ownership |
|---|---|---|
Linse CapitalReinvested | Investor | ~20.0% |
Lux CapitalReinvested | Investor | ~20.0% |
Founders FundReinvested | Investor | ~20.0% |
BANNER VCNew | Investor (co-lead) | ~20.0% |
137 VenturesReinvested | Investor (co-lead) | ~20.0% |
Frequently asked
- What does Impulse Space do?
- Impulse Space develops in-space transportation vehicles (orbital transfer vehicles and kick stages). Founded in 2021 by Tom Mueller, SpaceX employee #1 and chief engineer of the Merlin and Draco engines, the company is based in Redondo Beach, CA with a Boulder, CO office and Mojave test operations.
- Where is Impulse Space headquartered?
- Impulse Space is headquartered in Redondo Beach, CA and was founded in 2021.
- How much funding has Impulse Space raised?
- Impulse Space has raised >$1B in disclosed funding.
- Does Impulse Space hold government contracts?
- Defense Tech Atlas links Impulse Space to 1 government contract and 1 program.
Sources & citations8
8 sources behind every claim
Every data point on this record is backed by a cited public source. Request Pro access to see them and verify each claim yourself.