Impulse Space raises $500M at $4.26B valuation amid space investing surge
Impulse Space, a Redondo Beach-based startup founded by former SpaceX engineer Tom Mueller, announced a $500 million Series D funding round on June 2, 2026, valuing the company at $4.26 billion. The round was co-led by 137 Ventures and Banner VC, bringing total capital raised to over $1 billion. The company builds orbital transfer vehicles (Mira and Helios) to move satellites between orbits. Investor enthusiasm has surged following SpaceX’s recent IPO filing, with falling launch costs and rising satellite deployments driving demand for in-space mobility.
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Impulse Space raises $500M Series D, valued at $4.26B
Impulse Space, a Redondo Beach-based developer of in-space mobility infrastructure (space tugs), announced a $500 million Series D funding round on June 2, 2026, valuing the company at $4.26 billion. The round was co-led by 137 Ventures and BANNER VC, with participation from Founders Fund, Lux Capital, and Linse Capital, bringing total capital raised to over $1 billion. Founded by former SpaceX propulsion engineer Tom Mueller, the company builds spacecraft (Mira and Helios) to move satellites and payloads after reaching orbit. Helios, a larger transfer vehicle, aims to reduce transit time to high-energy orbits from months to same-day delivery. Impulse will use the funds to expand workforce and manufacturing capacity, currently having over 200 open roles. The investment surge follows SpaceX's recent IPO filing, which has drawn venture capital attention to ex-SpaceX founders in orbital logistics.
Yahoo FinanceImpulse Space raises $500M Series D, valued at $4.26B
Impulse Space, a Redondo Beach-based developer of in-space mobility infrastructure, announced a $500 million Series D funding round on June 2, 2026, valuing the company at $4.26 billion. The round was co-led by 137 Ventures and BANNER VC, with participation from Founders Fund, Lux Capital, and Linse Capital, bringing total capital raised to over $1 billion. Founded by former SpaceX propulsion engineer Tom Mueller, the company builds spacecraft known as space tugs, including the already-flown Mira and the larger Helios transfer vehicle expected to debut in 2027. Helios aims to drastically reduce transit times to high-energy orbits. The company plans to use the funds to expand its workforce and manufacturing capacity, with over 200 open roles. The investment surge follows SpaceX's recent IPO filing, which has drawn venture capital attention to ex-SpaceX talent in orbital logistics.
Yahoo FinanceImpulse Space raises $500 million at $4.26 billion valuation as space investing surges
Impulse Space, a startup founded by former SpaceX engineer Tom Mueller, announced a $500 million Series D funding round, valuing the company at $4.26 billion. The round was co-led by 137 Ventures and Banner VC, bringing total capital raised to over $1 billion. The company builds orbital transfer vehicles and propulsion systems to move satellites between orbits after launch. It has flown three missions and secured hundreds of millions in contracts. Products include Mira, an in-orbit maneuvering spacecraft, and Helios, a larger transfer vehicle set for first flight in 2027. The fundraising surge is linked to falling launch costs, rising satellite deployment, and heightened investor enthusiasm following SpaceX's recent IPO filing. Additional investors include Founders Fund, Lux Capital, and Linse Capital.
Yahoo FinanceImpulse Space raises $500 million at $4.26 billion valuation as space investing surges
Impulse Space, a startup building orbital transfer vehicles and propulsion systems, announced a $500 million Series D funding round on June 2, 2026, valuing the company at $4.26 billion. Founded by Tom Mueller, SpaceX's first employee and propulsion engineer, the Redondo Beach-based company has now raised over $1 billion total. The round was co-led by 137 Ventures and Banner VC, with participation from Founders Fund, Lux Capital, and Linse Capital. The funding highlights strong investor appetite for space infrastructure beyond launch rockets, as falling launch costs and accelerating satellite deployments drive demand for in-orbit mobility. Impulse has flown three missions and secured hundreds of millions in customer contracts. Its products include Mira, an operating maneuvering spacecraft, and Helios, a larger transfer vehicle set for first flight in 2027. Investor enthusiasm has surged following SpaceX's IPO filing last month, which has intensified interest in startups founded by former SpaceX executives.
Yahoo FinanceImpulse Space raises $500 million at $4.26 billion valuation as space investing surges
Impulse Space, a startup founded by former SpaceX propulsion engineer Tom Mueller, has raised $500 million in a Series D funding round, valuing the company at $4.26 billion. The round was co-led by 137 Ventures and Banner VC, bringing total capital raised to over $1 billion. The company builds orbital transfer vehicles and propulsion systems to move satellites between orbits after launch, addressing growing demand as launch costs fall. Impulse has flown three missions and secured hundreds of millions in contracts. Its products include Mira, an in-orbit maneuvering spacecraft, and Helios, a larger transfer vehicle set for first flight in 2027. The fundraising surge is partly attributed to SpaceX's recent IPO filing, which has intensified investor interest in space startups founded by former SpaceX executives and engineers. Additional investors include Founders Fund, Lux Capital, and Linse Capital.
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