What is Muon Space?
Mission-optimized satellite constellations and end-to-end space systems for defense and commercial customers.
- Category
- End-to-end satellite constellations
- Headquarters
- Mountain View, CA
- Founded
- 2021
- Employees
- Private; roughly 201-500 reported
- Total funding
- About $146M Series B disclosed
- Valuation
- Not disclosed
What is Muon Space?
Mission-optimized satellite constellations and end-to-end space systems for defense and commercial customers.
Muon Space designs, builds, and operates mission-tailored low-Earth-orbit satellite constellations. Its Halo platform and constellation services target climate, Earth observation, defense, communications, and payload missions needing integrated spacecraft, ground, and operations. Muon closed an oversubscribed $89.5M Series B1 in June 2025, bringing total Series B funding to $146M and following a $56.7M initial close in August 2024. The company also announced more than $100M in customer contracts in 2024 and acquired propulsion technology assets to scale production.
As of June 2026, the important sales context is that Muon Space is still in a build-and-scale phase rather than a mature public operating company. Revenue, customer count, and exact pricing are not fully public unless noted, so the durable facts are its domain, leadership, disclosed financings, offices, and public product direction.
Sources:Muon websiteMuon Series B1
What does Muon Space offer?
Muon Space offers the products and capabilities listed below.
- Halo satellite platform· Core product
- Mission-optimized constellations· Core product
- Hosted payloads· Core product
- Satellite operations· Capability
- Earth-observation missions· Capability
- Defense and commercial space systems· Use case
Sources:Muon websiteMuon Series B1
How does Muon Space make money?
Muon Space makes money through enterprise, government, or commercial contracts tied to end-to-end satellite constellations.
Muon makes money through satellite mission contracts, spacecraft design and manufacturing, hosted payloads, data products, constellation operations, and government programs. Pricing is customized by mission, number of spacecraft, payload, operations term, and data delivery requirements.
For sellers, the budget center is usually tied to end-to-end satellite constellations, deployment reliability, security, engineering velocity, and customer operations. Strong fits include infrastructure, hiring, test and simulation, manufacturing, data, compliance, field operations, and integration tooling where the product can reduce schedule risk or expand production capacity.
Sources:Muon websiteMuon Series B1
Who leads Muon Space?
Muon Space is led by the founders and operating executives below.
- Jonny DyerCo-founder & CEOFounder, since 2021Leads Muon Space strategy and end-to-end satellite systems.
- Dan McCleeseCo-founder / technical leadershipFounder signalAssociated with early company leadership and space systems expertise.
- Mission systems leadershipOperations teamScaling functionOwn spacecraft production, payload integration, and mission operations.
How do you contact Muon Space's leadership?
Muon Space publishes company contact routes, but verified personal executive emails were not found in reviewed public sources. Use the official contact route below or verified first-party channels instead of guessing personal addresses.
Official contact form; personal executive email format not verifiedSources:Muon websiteMuon Series B1
How much funding has Muon Space raised?
Muon Space has About $146M Series B disclosed; latest valuation/status signal: Not disclosed.
2021-2023: Seed and Series A - valuation not disclosed; Early rounds to build mission-optimized satellite platform. Aug 2024: Initial Series B - valuation not disclosed; $56.7M led by Activate Capital with Acme, Costanoa, Radical Ventures, and Congruent. Jun 2025: Series B1 - valuation not disclosed; $89.5M extension including $44.5M equity and $45M credit facilities, bringing Series B to $146M.
The latest valuation/status signal is Not disclosed. Where valuations or revenue are not company-disclosed, this profile labels them as reported signals rather than verified company metrics; Muon Space remains private as of June 2026.
How did Muon Space get here?
Muon Space's milestones show the path from founding to its current June 2026 scale.
- 2021FoundedMuon starts as an end-to-end space systems provider.
- Aug 2024$56.7M Series BActivate Capital leads initial Series B.
- 2024$100M+ contractsCompany announces customer contract momentum including SNC agreement.
- Jun 2025$89.5M Series B1Series B total reaches $146M.
- 2026Production scale-upMuon continues scaling satellite constellation delivery.
Sources:Muon websiteMuon Series B1
Who are Muon Space's competitors?
Muon Space competes with the following companies and incumbents.
- Planet LabsEarth-observation satellite constellation company.
- UmbraSynthetic aperture radar satellite company.
- Capella SpaceSAR satellite data and services company.
- Apex SpaceSatellite bus supplier for fast spacecraft programs.
- Loft OrbitalSpace infrastructure and hosted-payload company.
Sources:Muon websiteMuon Series B1
Muon Space — frequently asked questions
