Impulse Space

Impulse Space

Delivers orbital payloads via maneuvering vehicles

About Impulse Space

Simplify's Rating
Why Impulse Space is rated
C+
Rated C on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Robotics & Automation

Hardware

Industrial & Manufacturing

Aerospace

Company Size

201-500

Company Stage

Series C

Total Funding

$585M

Headquarters

El Segundo, California

Founded

2021

Overview

Impulse Space develops orbital maneuvering vehicles to deliver multiple payloads to unique orbits from a single launch, serving commercial satellite operators, space agencies, and other clients. It combines proven flight methods with advanced technologies to enable last-mile payload delivery to space. The company uses green, non-toxic propellants and designs its spacecraft to minimize orbital debris, while maintaining vertical integration for cost control and rapid design changes. It has secured $45 million in Series A funding and is pursuing missions like LEO EXPRESS-2 and LEO EXPRESS-3, with HAVEN-1 Space Station Propulsion awarded by VAST.

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Simplify's Take

What believers are saying

  • Raised $300M Series C in 2025, totaling $525M for Helios expansion.
  • NASA VADR contract selects Mira and Helios for OTV studies.
  • LEO Express-3 mission fully manifested for late 2025 with upgraded Mira.

What critics are saying

  • Northrop Grumman MRV captures NASA OTV contracts with superior delta-v.
  • SpaceX Starship direct-to-GEO launches obsolete Helios in 12-24 months.
  • NASA 2026 budget cuts prioritize incumbents, depleting Impulse reserves.

What makes Impulse Space unique

  • Mira spacecraft uses green non-toxic propellants for orbital maneuvers.
  • Vertically integrated design enables rapid Mira upgrades for MEO and GEO.
  • Helios kickstage delivers 5-ton payloads from LEO to GEO in under 24 hours.

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Funding

Total Funding

$585M

Above

Industry Average

Funded Over

5 Rounds

Notable Investors:
Series C funding is usually for startups that are doing well and are looking for more money to fuel major growth, such as acquiring other companies, expanding into global markets, or launching new product lines. Investors typically include larger venture capital firms and private equity.
Series C Funding Comparison
Above Average

Industry standards

$50M
$50M
Medium
$62M
SeatGeek
$100M
Oura
$300M
Impulse Space

Benefits

Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

0%

2 year growth

5%
Engineering.com
Aug 11th, 2025
Impulse Space selected by NASA to deliver orbital transfer vehicle studies

Impulse was selected for the studies by NASA's Launch Services Program via the agency's VADR (Venture-Class Acquisition of Dedicated and Rideshare Launch Services) contract.

Los Angeles Business Journal
Jun 16th, 2025
Impulse Space Raises $300M in Series C

Impulse Space, a spacecraft manufacturer based in Redondo Beach, raised $300 million in a Series C round led by Linse Capital. Founded by Tom Mueller, the company has raised $525 million since 2021 and secured over 30 contracts valued at $200 million. Impulse Space focuses on space vehicles for navigating orbits and delivering payloads. The funding comes amid geopolitical tensions affecting the space sector, with NASA's budget cuts and increased Space Force funding impacting the industry.

ExecutiveBiz
Jun 6th, 2025
Impulse Space Raises $300M in Series C Financing

Impulse Space has secured $300 million in a Series C funding round led by Linse Capital, bringing the in-space transportation services provider's total funding to $525 million.

Ars Technica
Jun 4th, 2025
Impulse Space raises $300M for expansion

Impulse Space, an in-space propulsion company, raised $300 million following a $150 million round last year. The funds will help expand operations, including hiring and developing new vehicles like Helios, which enhances payload capacity for missions to the Moon, Mars, and beyond. Helios, set to launch next year, can move multi-ton payloads rapidly. Impulse's Mira spacecraft has already demonstrated success, attracting interest from the Space Force for its high-thrust capabilities.

Silicon Valley
Jun 3rd, 2025
Former key SpaceX engineer's Impulse Space raises $300 million

(Bloomberg/Sana pashankar) - Impulse Space raised $300 million in its latest funding round as the Silicon Valley-based startup looks to cash in on demand for its highly agile spacecraft.

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