# Impulse Space

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/impulse-space

- Industry: Aerospace
- Headquarters: Redondo Beach, US
- Website: www.impulsespace.com
- Total disclosed funding: $1.3B
- Latest round: Series D (Sep 16, 2026)
- Investors on record: 21

## About

Based in Redondo Beach, California, United States, Impulse Space, Inc. was founded in 2021 by Tom Mueller(CEO). The company develops in-space transportation infrastructure, including orbital transfer vehicles, propulsion systems, and space logistics solutions for commercial, civil, and government customers. In September 2026, Impulse Space, Inc. raised USD 308 million in extension of Series D funding from 137 Ventures, BANNER VC, DFJ Growth, Linse Capital, Lux Capital, and Valor Equity Partners.
Impulse Space, Inc. works with commercial, civil, and government space organizations to provide in-space transportation and mobility solutions. Its offerings include Mira, an orbital transfer vehicle used for payload hosting, deployment, and maneuvering, Helios, a transportation vehicle designed for transferring payloads from low Earth orbit to geostationary orbit and deeper space destinations, and proprietary propulsion systems including the Saiph, Rigel, and Deneb engines.

Impulse Space, Inc.'s revenue is generated through the provision of in-space transportation, orbital logistics, payload delivery, and spacecraft mobility services. The company works with commercial, government, and defense customers to transport payloads between orbits, provide orbital transfer services, and support space missions through its mobility vehicles and propulsion systems.
The company plans to use the funding to support ongoing product development and team growth as Impulse expands its capabilities to serve commercial, civil, and government customers.

## Funding rounds

- Series D, Sep 16, 2026, $308M — Valor Equity Partners, Lux Capital, 137 Ventures, DFJ Growth, Linse Capital, Banner VC
- Series D, Apr 8, 2026, $500M — Founders Fund, Lux Capital, 137 Ventures, Linse Capital, Balerion Space Ventures, Silent Ventures, Banner VC
- Series C, May 9, 2025, $295M — Valor Equity Partners, Founders Fund, Lux Capital, DFJ Growth, Airbus Ventures, Linse Capital, Trousdale Ventures, Tamarack Global, Spring Tide Capital, RTX Ventures, First Principles Group, Balerion Space Ventures, Dcvc
- Series B, Oct 1, 2024, $150M — Founders Fund, Lux Capital, 137 ventures, Alumni Ventures Group, Airbus Ventures, Elysium Venture Capital, Trousdale Ventures, Tamarack Global, Spring Tide Capital, RTX Ventures, First Principles Group, Balerion Space Ventures, Overmatch, Dcvc, Island Green Capital Management
- Series A, Jul 21, 2023, $39M — Founders Fund, Lux Capital, Alumni Ventures Group, Airbus Ventures, Space Capital, RTX Ventures
- Seed, Mar 24, 2022, $20M — Founders Fund

## Investors

- Founders Fund (https://capitalatlas.ai/funds/founders-fund) — Seed, Series A, Series B, Series C, Series D
- Lux Capital (https://capitalatlas.ai/funds/lux-capital) — Series A, Series B, Series C, Series D
- Alumni Ventures Group (https://capitalatlas.ai/funds/alumni-ventures-group) — Series A, Series B
- Airbus Ventures (https://capitalatlas.ai/funds/airbus-ventures) — Series A, Series B, Series C
- Space Capital (https://capitalatlas.ai/funds/space-capital) — Series A
- RTX Ventures (https://capitalatlas.ai/funds/rtx-ventures) — Series A, Series B, Series C
- 137 ventures (https://capitalatlas.ai/funds/137-ventures) — Series B, Series D
- Elysium Venture Capital (https://capitalatlas.ai/funds/elysium-venture-capital) — Series B
- Trousdale Ventures (https://capitalatlas.ai/funds/trousdale-ventures) — Series B, Series C
- Tamarack Global (https://capitalatlas.ai/funds/tamarack-global) — Series B, Series C
- Spring Tide Capital (https://capitalatlas.ai/funds/spring-tide-capital) — Series B, Series C
- First Principles Group (https://capitalatlas.ai/funds/first-principles-group) — Series B, Series C
- Balerion Space Ventures (https://capitalatlas.ai/funds/balerion-space-ventures) — Series B, Series C, Series D
- Overmatch (https://capitalatlas.ai/funds/overmatch) — Series B
- Dcvc (https://capitalatlas.ai/funds/dcvc) — Series B, Series C
- Island Green Capital Management (https://capitalatlas.ai/funds/island-green-capital-management) — Series B
- Valor Equity Partners (https://capitalatlas.ai/funds/valor-equity-partners) — Series C, Series D
- DFJ Growth (https://capitalatlas.ai/funds/dfj-growth) — Series C, Series D
- Linse Capital (https://capitalatlas.ai/funds/linse-capital) — Series C, Series D
- Silent Ventures (https://capitalatlas.ai/funds/silent-ventures) — Series D
- Banner VC (https://capitalatlas.ai/funds/banner-vc) — Series D