# Muon Space funding: rounds and investors > Muon Space has raised $295M across 2 rounds since 2025. Investors include Eclipse Capital, Salesforce Ventures and Wellington Management. Source: https://millionrounds.com/company/muon-space (Millionrounds; every figure on the page links to its filing or article) United States · [Series C startup](https://millionrounds.com/companies) # Who invested in *Muon Space* 2 rounds we have observed, with the 11 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Aerospace & Space Climate Tech Defence Tech Raised 3 months ago Follow Muon Space and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fmuon-space) Funding summary Updated 5 Nov 2026 **$295M** raised across 2 rounds since 2025, from 3 sources **$45M** Grant **$250M** Series C - **Latest round:** Series C, $250M Aug 2026 - **Led by:** Eclipse Capital - **Step-up i:** 5.6× - **Investors:** 11 (1 led) See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2026 **$45M** Grant **$250M** Series C - **First round:** Grant, $45M - **Biggest round:** $250M - **Between rounds:** 11 months ## The rounds - **Aug 2026** Series C **$250M** *5 new* [Eclipse Capital](https://millionrounds.com/fund/eclipse-capital) Lead [Salesforce Ventures](https://millionrounds.com/fund/salesforce-ventures) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Google](https://millionrounds.com/fund/google-assistant-investments) [Galvanize](https://millionrounds.com/fund/galvanize) Reported by TechStartups and 1 other - **Oct 2025** Grant **$45M** *6 new* [Costanoa Ventures](https://millionrounds.com/fund/costanoa-ventures) [South Park Commons](https://millionrounds.com/fund/south-park-commons) [Radical Ventures](https://millionrounds.com/fund/radical-ventures) [Space Capital](https://millionrounds.com/fund/space-capital-2) [Congruent Ventures](https://millionrounds.com/fund/congruent-ventures) [ACME Capital](https://millionrounds.com/fund/acme-capital) Source recorded ## Funding filed with regulators Muon Space filed one raise, $25M in all. Filings say how much was sold and to how many investors; they never name the investors. - May 2022 **$25M** 12 investors equity of $25M offered SEC Form D ## Founders and team From Muon Space's own website and the SEC filings it signed: 4 founders, 10 on the team. **Jonny Dyer** CEO & Co-Founder **Pascal Stang** CTO & Co-Founder **Reuben Rohrschneider** Chief Mission Architect & Co-Founder **Paul Day** VP Production & Co-Founder *Named on its 2022 Form D* - **Gregory Smirin** President - **Ryan Gray** Chief Financial Officer - **Shirley Paley** Chief Legal Officer - **Gautier Brunet** VP Product - **Jeremy Pack** VP Engineering - **John Teter** VP Operations - **Melissa Lawrence** VP People Operations - **Jonathan Nutzmann** Senior Director of Hardware - **Daniel McCleese** Executive Officer, Director i - **Jonathan Dyer** Executive Officer, Director i On the board, as filed i *John Cowgill* *Rob Toews* ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Grant** 2025 **Series C** 2026 [Eclipse Capital](https://millionrounds.com/fund/eclipse-capital) L [Salesforce Ventures](https://millionrounds.com/fund/salesforce-ventures) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Costanoa Ventures](https://millionrounds.com/fund/costanoa-ventures) [Google](https://millionrounds.com/fund/google-assistant-investments) [South Park Commons](https://millionrounds.com/fund/south-park-commons) [Radical Ventures](https://millionrounds.com/fund/radical-ventures) [Space Capital](https://millionrounds.com/fund/space-capital-2) [Congruent Ventures](https://millionrounds.com/fund/congruent-ventures) [ACME Capital](https://millionrounds.com/fund/acme-capital) ## Everyone who backed them [Eclipse Capital](https://millionrounds.com/fund/eclipse-capital) Hedge fund **1** round, led 1 [Salesforce Ventures](https://millionrounds.com/fund/salesforce-ventures) Corporate VC **1** round [Wellington Management](https://millionrounds.com/fund/wellington-management) VC firm **1** round [Costanoa Ventures](https://millionrounds.com/fund/costanoa-ventures) VC firm **1** round [Google](https://millionrounds.com/fund/google-assistant-investments) Accelerator **1** round [South Park Commons](https://millionrounds.com/fund/south-park-commons) Accelerator **1** round [Radical Ventures](https://millionrounds.com/fund/radical-ventures) VC firm **1** round [Space Capital](https://millionrounds.com/fund/space-capital-2) Private equity **1** round [Congruent Ventures](https://millionrounds.com/fund/congruent-ventures) VC firm **1** round [ACME Capital](https://millionrounds.com/fund/acme-capital) VC firm **1** round [Galvanize](https://millionrounds.com/fund/galvanize) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=muon-space). ## Also claim to have backed them These 3 firms list Muon Space as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Air Street Capital](https://millionrounds.com/fund/air-street-capital) VC firm Per its own site [Climactic VC](https://millionrounds.com/fund/climactic) VC firm Per its own site [Earthrise Ventures](https://millionrounds.com/fund/earthrise-ventures) VC firm Per its own site ## Quick answers about Muon Space ### Who invested in Muon Space? Muon Space's investors include Eclipse Capital, Salesforce Ventures, Wellington Management, Costanoa Ventures and Google, and 6 more on record. Eclipse Capital led its latest round. ### How much has Muon Space raised? Muon Space has raised $295M across 2 rounds since 2025. ### When did Muon Space last raise? Muon Space's most recent round was a Series C of $250M in Aug 2026, led by Eclipse Capital. ### What was Muon Space's biggest round? Its most recent round, $250M in Aug 2026, is also its largest on record. ### Who backed Muon Space first? Muon Space's first round on record, in Oct 2025, was backed by Costanoa Ventures, South Park Commons and Radical Ventures and 3 others. ### What stage is Muon Space at? Muon Space's latest named round is a Series C, in Aug 2026. ### Where is Muon Space based? Muon Space is based in the United States. ### Who led Muon Space's rounds? Eclipse Capital led the Series C in 2026. ## Companies like Muon Space In the same sector, and raised in the last eighteen months. [**Northwood Space** $505M · Nov 2026](https://millionrounds.com/company/northwood-space)[**Iris Technology** Oct 2026](https://millionrounds.com/company/iris-technology)[**DMC Biotechnologies** $19M · Oct 2026](https://millionrounds.com/company/dmc-biotechnologies)[**Rendezvous Robotics** $28M · Oct 2026](https://millionrounds.com/company/rendezvous-robotics)[**Firehawk Aerospace** $150M · Oct 2026](https://millionrounds.com/company/firehawk-aerospace)[**Terradot** $92M · Oct 2026](https://millionrounds.com/company/terradot) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app