Muon Space Valuation, Funding & Investors

Muon Space is valued at $1.5B as of August 2026.

Last Muon Space valuation

$1.5B

Series C · Aug 2026

Last Muon Space funding round

$250M

Series C · Aug 2026

Cumulative funding Muon Space raised

$386M

across 5 funding rounds

Key investors in Muon Space

  • Costanoa Ventures
  • Congruent Ventures
  • Radical Ventures
  • ACME Capital
  • Activate Capital Partners
  • Space Capital

Muon Space Overview

About Muon Space

Muon Space is a Burlingame-headquartered space company that engineers satellite constellations for Earth observation missions targeting climate change and national security applications. Its Halo platform combines modular spacecraft buses, payload systems, and software orchestration to accelerate deployment from design to orbit in under 36 months. The firm maintains production facilities in the San Francisco Bay Area and holds contracts with NASA for wildfire detection satellites and methane monitoring payloads. Muon Space serves commercial clients in agriculture and defense sectors while expanding into real-time space-based analytics.


Founded

2021

HQ

United StatesSan Francisco, CA

Status

Privately held

Customer focus

B2B & B2G

Revenue model

Services

Valuation

$1.5B (Aug 2026)

Muon Space Valuation

Muon Space is currently valued at $1.5B, based on its Series C in August 2026.

The $250M round was led by Eclipse Ventures, with participation from Salesforce Ventures, I Squared Capital, Wellington Management, Bradley Horowitz, ACME Capital and 6 other investors.

Muon Space's valuation has grown 14x from $105M at its seed round in May 2021 to $1.5B in August 2026, across 2 priced rounds.

Muon Space valuation by funding round

Muon Space valuation by funding round
DateStageValuation
Aug 2026Series C$1.5B
May 2021Seed$105M

Muon Space Funding History

Muon Space has raised a total of $386M across 5 funding rounds.

Muon Space's first fundraising round was a $10M seed round in May 2021. The most recent completed round was a $250M Series C in August 2026.

Muon Space funding rounds

Muon Space funding rounds
DateStageInvestorsRaisedValuationDeal Summary
Aug 2026Series CEclipse Ventures (lead); Salesforce Ventures; I Squared Capital; Wellington Management; Bradley Horowitz; ACME Capital; Radical Ventures; Activate Capital Partners; Congruent Ventures; Galvanize Climate Solutions; ArcTern Ventures; Costanoa Ventures$250M$1.5BMuon Space closed a $250 million Series C financing on August 20, 2026, led by Eclipse Capital, with participation from Google, Salesforce Ventures, Wellington Management, I Squared Capital, Woven Capital, and existing investors. The round brought the company’s valuation to $1.5 billion and increased total equity funding to more than $386 million. The new capital is intended to accelerate production of large-scale satellite constellations, expand Muon’s dual-use spacecraft platforms, and support demand from commercial, government, and international sovereign customers. The company also plans to use the funding to scale its manufacturing and vertical integration efforts, including investments in orbital AI computing and satellite production capacity. Muon Space is a Mountain View, California-based satellite manufacturer founded in 2021. The company designs, builds, and operates integrated satellite constellations and had launched 11 satellites into orbit before the financing announcement. It also opened a manufacturing facility in California and has expanded its capabilities through the acquisition of propulsion startup Starlight Engines in the prior year.
Jun 2025Series BCongruent Ventures (lead); ACME Capital; Radical Ventures; Activate Capital Partners; ArcTern Ventures; Costanoa Ventures$45M-Muon Space is an end-to-end space systems company founded in 2021, headquartered in Mountain View, California, that designs, builds, and operates mission-optimized satellite constellations for defense, commercial, climate monitoring, national security, and agriculture applications using its proprietary Halo technology stack integrating spacecraft platforms, payload management, and software-defined orchestration. On June 12-13, 2025, Muon Space closed an oversubscribed $89.5 million Series B1 round led by Congruent Ventures, with participation from Activate Capital, Acme Capital, Costanoa Ventures, Radical Ventures, and new investor ArcTern Ventures, bringing total Series B funding to $146 million including $44.5 million in new equity and $45 million in credit facilities following an initial Series B close in August 2024. The funding supports scaling operations with expanded satellite production, vertical integration of propulsion via acquisition of Starlight Engines and IR/RF instruments, deployment of automated constellation operations platform, global ground station network expansion, and a 50% team growth since December. Traction includes surpassing $100 million in new contracts signed in 2024, such as a landmark agreement with SNC for next-generation satellites in its Vindlér RF sensing constellation, amid growing customer demand from commercial, civil, and national security sectors.
Aug 2024Series BActivate Capital Partners (lead); ACME Capital; Radical Ventures; Congruent Ventures; Costanoa Ventures$57M-Muon Space is an end-to-end space systems provider that designs, builds, and operates mission-tailored low-earth orbit (LEO) satellite constellations, particularly its Halo platform for remote sensing, Earth intelligence, RF data collection, and analytics to support defense, commercial, and climate missions. The company, founded in 2021 and headquartered in Silicon Valley, announced a $56.7 million initial Series B funding round on August 6, 2024 (approximate to query date of 05/08/2024), led by Activate Capital with participation from Acme Capital and existing investors Costanoa Ventures, Radical Ventures, and Congruent Ventures. Funds are earmarked to scale operations, expand the Halo satellite technology, grow production at its 130,000-square-foot San Jose facility aiming for 500 satellites per year, vertically integrate components like propulsion and IR/RF instruments, deploy automated constellation operations, and build out global ground stations. Traction includes surpassing $100 million in committed customer contracts in 2024 for Halo LEO satellites, highlighted by a landmark agreement with Sierra Nevada Corporation (SNC) to develop and deliver three satellites for RF data collection launching in 2025, plus a second-stage contract with the National Reconnaissance Office. Investors cite Muon Space's cutting-edge technology, execution track record, and multi-billion dollar market potential in space infrastructure. The Series B later extended oversubscribed to $146 million total by June 2025 with a $89.5 million B1 round ($44.5M equity + $45M credit) led by Congruent Ventures, adding ArcTern Ventures; proceeds support further scaling, acquisition of propulsion startup Starlight Engines for zinc-fueled solid propellant thrusters, and enhanced Earth intelligence capabilities for government and commercial operators.
Jun 2022Series ARadical Ventures (lead); Space Capital; Ubiquity Ventures; Congruent Ventures; Costanoa Ventures$25M-Muon Space, founded by veteran technology and aerospace leaders, develops scientific-grade satellite constellations to deliver multi-dimensional Earth observation data for climate intelligence and planetary monitoring. The company announced a $25 million Series A funding round on approximately August 6, 2022, led by Radical Ventures with participation from Costanoa Ventures, Congruent Ventures, Space Capital, and Ubiquity Ventures. The capital supports deployment of satellite constellations equipped with diverse sensors to collect rich Earth data and provide fused data solutions for organizations lacking space expertise. The funding enables Muon Space to advance its position in scientific Earth observation, powering climate action through precise measurement and prediction of Earth's systems. Subsequently, Muon Space raised additional rounds, including a Series B starting with $56.7M on August 5, 2024, led by Activate Capital alongside prior investors, extending to a total Series B of $146M by June 2025 with $89.5M more, including equity and credit facilities led by Congruent Ventures. These later funds scaled satellite production, vertical integration of propulsion and instruments, automated operations, and ground networks, amid $100M in new 2024 contracts, such as with SNC for RF sensing satellites. The company aims for high-volume production of up to 500 spacecraft annually in a new facility.
May 2021SeedCostanoa Ventures (lead); Space Capital; Ubiquity Ventures; Congruent Ventures; Climactic VC; South Park Commons$10M$105MMuon Space is a climate-focused satellite constellation company that designs, builds, and operates mission-tailored low-earth orbit satellite constellations to provide mission-as-a-service and expand access to crucial climate data. The company raised $10 million in a Seed funding round led by Costanoa Ventures, with participation from Space Capital, Congruent Ventures, Ubiquity Ventures, South Park Commons, and Climactic VC. This round occurred around October 2021, with a post-money valuation of $105-115 million. Costanoa Ventures highlighted the team's expertise in creating a purpose-built constellation for climate response. The Seed round supported Muon Space's efforts to improve global responses to climate change through space-based intelligence. Subsequent funding included a Series A in 2022 and a Series B starting with $56.7 million in August 2024 led by Activate Capital, followed by extensions bringing total Series B to $146 million.

Who has invested in Muon Space?

16 investors have backed Muon Space across its funding rounds, including Costanoa Ventures, Congruent Ventures, Radical Ventures, ACME Capital, Activate Capital Partners and Space Capital.

Lead investors include Eclipse Ventures, Congruent Ventures, Activate Capital Partners, Radical Ventures and Costanoa Ventures.


Muon Space Investors

Investors in Muon Space by funding rounds participated
InvestorHQRoundsRoleFirst check
Congruent VenturesUnited StatesSan Francisco, CA5LeadMay 2021
Costanoa VenturesUnited StatesSan Francisco, CA5LeadMay 2021
Radical VenturesCanadaToronto4LeadJun 2022
ACME CapitalUnited StatesSan Francisco, CA3ParticipantAug 2024
Activate Capital PartnersUnited StatesSan Francisco, CA3LeadAug 2024
Space CapitalUnited StatesNew York City, NY2ParticipantMay 2021
Ubiquity VenturesUnited StatesSan Francisco, CA2ParticipantMay 2021
ArcTern VenturesCanadaToronto2ParticipantJun 2025
Salesforce VenturesUnited StatesSan Francisco, CA1ParticipantAug 2026
I Squared CapitalUnited StatesUnited States1ParticipantAug 2026
Eclipse VenturesUnited StatesSan Francisco, CA1LeadAug 2026
Wellington ManagementUnited StatesBoston, MA1ParticipantAug 2026
Bradley HorowitzUnited StatesSan Francisco, CA1ParticipantAug 2026

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Acquisitions by Muon Space

Muon Space has acquired 1 company to date.

Last acquisition by Muon Space was on June 12th 2025. Muon Space acquired Starlight Engines for undisclosed valuation.


Latest Acquisitions by Muon Space

Starlight Engines
Description
-
HQ Country-
HQ City
-
Deal Date12 Jun 2025
Valuationundisclosed
EV/Revenue
EV/EBITDA

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Muon Space Competitors

Muon Space competitors include listed companies like Orbita Aerospace, Intuitive Machines, BlackSky and Hunan Aerospace Huanyu, and private ones like SpinLaunch and Apex.

Public and private companies comparable to Muon Space
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Orbita AerospaceChinaChinaPublicly listed$41M($21M)$1.2B-
SpinLaunchUnited StatesLos Angeles, CAPrivate--$2B-
ApexUnited StatesLos Angeles, CAPrivate$18M-$2.3B-
Intuitive MachinesUnited StatesUnited StatesPublicly listed$207M($111M)$2.4B5.0x
BlackSkyUnited StatesUnited StatesPublicly listed$107M($28M)$931M7.0x
Hunan Aerospace HuanyuChinaChinaPublicly listed$68M$14M$2.4B-
Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Avio$672M$36M2.0x2.0x37.8x33.7x
Apollo Micro Systems$94M$22M16.0x12.3x68.1x53.0x
Sigma Advanced Systems$51M$34M31.4x-46.9x-
Beijing Beimo High Tech$137M$48M10.0x10.2x28.6x-
Terra Drone$31M($15M)41.5x39.1x(86.9x)-
Hefei Jianghang Aircraft$141M$15M8.3x-78.4x-
Triangle Defense Co.$237M$81M6.2x-18.1x-
Orbita Aerospace$41M($21M)30.0x-(57.8x)-

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Common questions about Muon Space

When was Muon Space founded?Muon Space was founded in 2021.
Where is Muon Space headquartered?Muon Space is headquartered in San Francisco, CA, United States.
Is Muon Space publicly listed?No, Muon Space is a private, VC-backed company.
What is Muon Space's valuation?Muon Space was last valued at $1.5B in its Series C in August 2026.
How much funding has Muon Space raised?Muon Space has raised $386M across 5 funding rounds.
What was Muon Space's last funding round?Muon Space's last funding round was a $250M Series C in August 2026, led by Eclipse Ventures.
Who are Muon Space's investors?Muon Space's investors include Congruent Ventures, Costanoa Ventures, Radical Ventures, ACME Capital, Activate Capital Partners, Space Capital, Ubiquity Ventures, ArcTern Ventures, Salesforce Ventures, I Squared Capital and 6 others.
Which companies are comparable to Muon Space?Companies comparable to Muon Space include Orbita Aerospace, SpinLaunch, Apex, Intuitive Machines, BlackSky and Hunan Aerospace Huanyu.
How many companies has Muon Space acquired?Muon Space has acquired 1 company, including Starlight Engines.

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