# CesiumAstro funding: rounds and investors > CesiumAstro has raised $1.1B across 6 rounds since 2019. Investors include Trousdale Ventures, Kleiner Perkins and Franklin Templeton. Source: https://millionrounds.com/company/cesiumastro (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *CesiumAstro* 6 rounds we have observed, with the 14 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 Defence Tech Telecoms Raised 2 months ago Follow CesiumAstro and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fcesiumastro) Funding summary Updated 27 Oct 2026 **$1.1B** raised across 6 rounds since 2019, from 6 sources **$12M** Series A **$270M** Series C **$470M** Series C **$300M** Debt - **Latest round:** Debt, $300M Sept 2026 - **Biggest round:** $470M Series C · Feb 2026 - **Investors:** 14 (2 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. 2019 2020 2021 2022 2023 2024 2025 2026 **$12M** Series A **?** Series B **?** Series B **$270M** Series C **$470M** Series C **$300M** Debt - **First round:** Series A, $12M - **Biggest round:** $470M - **Usual gap between rounds:** 15 months ## The rounds - **Sept 2026** Debt **$300M** *3 returning* [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [Franklin Templeton](https://millionrounds.com/fund/franklin-templeton) Source recorded SEC filing: $271M sold - **Feb 2026** Series C **$470M** *5 new* *2 returning* [JP Morgan](https://millionrounds.com/fund/jpmorgan) [Trousdale Ventures](https://millionrounds.com/fund/trousdale-ventures) [Airbus Ventures](https://millionrounds.com/fund/airbus-ventures) [Development Bank of Japan Inc.](https://millionrounds.com/fund/development-bank-of-japan-2) [Export-Import Bank of the United States](https://millionrounds.com/fund/export-import-bank-of-the-united-states) [JDH Capital](https://millionrounds.com/fund/jdh-capital) [Toyota's Woven Capital](https://millionrounds.com/fund/toyota-s-woven-capital) Reported by Ventureburn - **Feb 2026** Series C **$270M** *2 new* *2 returning* [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [Franklin Templeton](https://millionrounds.com/fund/franklin-templeton) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Source recorded - **Oct 2024** Series B **Amount undisclosed** *1 returning* [Trousdale Ventures](https://millionrounds.com/fund/trousdale-ventures) Lead Reported by Trousdale Ventures - **Jul 2024** Series B **Amount undisclosed** *1 new* [Trousdale Ventures](https://millionrounds.com/fund/trousdale-ventures) Lead Reported by Trousdale Ventures - **Mar 2019** Series A **$12M** *6 new* [Airbus Ventures](https://millionrounds.com/fund/airbus-ventures) Lead [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [Franklin Templeton](https://millionrounds.com/fund/franklin-templeton) [Honeywell](https://millionrounds.com/fund/honeywell) [Lavrock Ventures](https://millionrounds.com/fund/lavrock-ventures) Analog Devices Reported by Businesswire SEC filing: $8.5M sold, first sale Jan 2019 ## 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. **Series A** 2019 **Series B** 2024 **Series B** 2024 **Series C** 2026 **Series C** 2026 **Debt** 2026 [Trousdale Ventures](https://millionrounds.com/fund/trousdale-ventures) L L [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [Franklin Templeton](https://millionrounds.com/fund/franklin-templeton) [Airbus Ventures](https://millionrounds.com/fund/airbus-ventures) L [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [JP Morgan](https://millionrounds.com/fund/jpmorgan) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Honeywell](https://millionrounds.com/fund/honeywell) [Lavrock Ventures](https://millionrounds.com/fund/lavrock-ventures) [Development Bank of Japan Inc.](https://millionrounds.com/fund/development-bank-of-japan-2) ## Everyone who backed them [Trousdale Ventures](https://millionrounds.com/fund/trousdale-ventures) Family office **3** rounds, led 2 [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) VC firm **3** rounds [Franklin Templeton](https://millionrounds.com/fund/franklin-templeton) Private equity **3** rounds [Airbus Ventures](https://millionrounds.com/fund/airbus-ventures) Corporate VC **2** rounds, led 1 [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **2** rounds [JP Morgan](https://millionrounds.com/fund/jpmorgan) Investment bank **1** round [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Private equity **1** round [Honeywell](https://millionrounds.com/fund/honeywell) Investment firm **1** round [Lavrock Ventures](https://millionrounds.com/fund/lavrock-ventures) VC firm **1** round [Development Bank of Japan Inc.](https://millionrounds.com/fund/development-bank-of-japan-2) Government **1** round [Export-Import Bank of the United States](https://millionrounds.com/fund/export-import-bank-of-the-united-states) Growth equity **1** round [JDH Capital](https://millionrounds.com/fund/jdh-capital) VC firm **1** round [Toyota's Woven Capital](https://millionrounds.com/fund/toyota-s-woven-capital) Growth equity **1** round Analog Devices no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=cesiumastro). ## Also claim to have backed them These 4 firms list CesiumAstro 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. [RPM Ventures](https://millionrounds.com/fund/rpm-ventures) VC firm Per its own site [Assembly Ventures](https://millionrounds.com/fund/assembly-ventures) VC firm Per its own site [NewSpace Capital](https://millionrounds.com/fund/newspace-capital) Private equity Per its own site [Nirvana Group](https://millionrounds.com/fund/nirvana-group) Family office Per its own site ## Quick answers about CesiumAstro ### Who invested in CesiumAstro? CesiumAstro's investors include Trousdale Ventures, Kleiner Perkins, Franklin Templeton, Airbus Ventures and Alumni Ventures, and 9 more on record. ### How much has CesiumAstro raised? CesiumAstro has raised $1.1B across 6 rounds since 2019. 2 rounds did not disclose an amount, so the total is a floor. ### When did CesiumAstro last raise? CesiumAstro's most recent round was a Debt of $300M in Sept 2026. ### What was CesiumAstro's biggest round? CesiumAstro's largest round on record is $470M (Series C), in Feb 2026. ### Who backed CesiumAstro first? CesiumAstro's first round on record, in Mar 2019, was backed by Airbus Ventures, Kleiner Perkins and Franklin Templeton and 3 others. ### What stage is CesiumAstro at? CesiumAstro's latest named round is a Debt, in Sept 2026. ### Where is CesiumAstro based? CesiumAstro is based in the United States. ### Who led CesiumAstro's rounds? Airbus Ventures led the Series A in 2019; Trousdale Ventures led the Series B in 2024. ## Companies like CesiumAstro In the same sector, and raised in the last eighteen months. [**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**Caju AI** $3.0M · Oct 2026](https://millionrounds.com/company/caju-ai)[**iQSTEL** $4.0M · Oct 2026](https://millionrounds.com/company/iqstel)[**Apex** $1.1B · Oct 2026](https://millionrounds.com/company/apex)[**Xona** $512M · Oct 2026](https://millionrounds.com/company/xona)[**TruAgents** $3.4M · Oct 2026](https://millionrounds.com/company/truagents) ## 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