10 Gore Microballoon
A ten-gore stratospheric balloon platform for carrying payloads.


Startup · United States
HQ DenverFounded 201951-200 employees
Urban Sky is the global leader of tactical stratospheric balloons, specializing in Defense & Intel, Data & Sensing, and Science & Weather.
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Feb 6, 2025 | Series B | $30.0M | — | Altos Ventures | Catapult Ventures, DA Ventures, Lavrock Ventures, Lerer Hippeau, New Legacy Ventures, New Stack Ventures, Techstars, TenOneTen Ventures, Union Labs | Reported |
| Oct 16, 2023 | Series A | $9.8M | — | Lavrock Ventures, Lerer Hippeau, New Legacy Ventures | Catapult Ventures, DA Ventures, TenOneTen Ventures, Union Labs | Reported |
| Aug 24, 2021 | Seed | $4.1M | — | Catapult Ventures, Union Labs | New Stack Ventures, Techstars, TenOneTen Ventures | Reported |
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
A ten-gore stratospheric balloon platform for carrying payloads.
A twelve-gore stratospheric balloon platform for carrying payloads.
A sixteen-gore stratospheric balloon platform for carrying payloads.
Newest unveiled first. Open a system for its milestone timeline, components and sources.
| Technology | Role | Maturity | TRL | Notes | Confidence |
|---|---|---|---|---|---|
| Aircraft and aeronautics | Developer | — | — | classify_sectors run 37, haiku, taxonomy 2026-10-18b: Tactical stratospheric balloons with a stated Defense & Intel vertical alongside data/sensing and science markets. | Reported |
| ISR and targeting | Developer | — | — | classify_sectors run 37, haiku, taxonomy 2026-10-18b: Tactical stratospheric balloons with a stated Defense & Intel vertical alongside data/sensing and science markets. | Reported |
Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "USA", "hq_iso2": "US", "id": "d376b5f7-185b-4578-934c-40574eb7b70a"}”
Urban Sky · Supports Organization · description, Organization · linkedin url, Organization · name, Organization · website
“Urban Sky is the global leader of tactical stratospheric balloons, specializing in Defense & Intel, Data & Sensing, and Science & Weather.”
LinkedIn · Supports Organization · employee range, Organization · founded year, Organization · hq city
“employee_range: 51-200 (profile: 51-200 employees)”
Urban Sky · Supports System
“## WALLABEE Our integrated payload system for stratospheric sensing and surveillance. Purpose-built for the Microballoon platform. Multi-Sensor Integration. EO/IR imaging, signals intelligence, and communications downlink in a single package.”
Via Satellite · Feb 7, 2025 · Supports Funding round
“The funding round was led by Altos Ventures, with participation from New Legacy Ventures, Lerer Hippeau, Catapult Ventures, Lavrock Ventures, New Stack Ventures, TenOneTen, DA Ventures, Union Labs VC and Techstars.”
Space Insider · Feb 6, 2025 · Supports Funding round · amount, Organization · ownership
“it has closed a $30M Series B investment round”
Space Insider · Oct 17, 2023 · Supports Funding round · amount
“announced today an over-subscribed $9.75 million Series A financing round co-led by New Legacy Ventures, Lerer Hippeau and Lavrock Ventures”
VC News Daily · Aug 24, 2021 · Supports Funding round · amount
“announced an over-subscribed $4.1 million Seed financing round co-led by Catapult Ventures and Union Labs, with participation from TenOneTen Ventures, New Stack Ventures, and Techstars.”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.