# EnduroSat

Sofia-based maker of small satellites and space-as-a-service — from CubeSat platforms to ESPA-class (200–500 kg) satellites on its FRAME line. It has launched 103 satellites and delivered more than 200. In September 2026 it raised $205m — the largest round for a Bulgarian company — to build US production and a new EU space and defence hub.

## Key facts

- Country: Bulgaria
- Segment: Satellites
- Headquarters: Sofia, Bulgaria
- Founded: 2015
- Employees: ~350
- Products: CubeSat platforms, FRAME ESPA-class satellites, Space-as-a-Service
- Website: https://www.endurosat.com
- Status: Private
- Total raised: ~$360m

## Funding & contracts

| Date | Type | Counterparty | Amount | Source |
|---|---|---|---|---|
| 2026-09-16 | Equity | Riot Ventures, Atreides Management (+ EIC, GV, Founders Fund) | $205m |  |
| 2026-09-11 | Contract | Arianespace — launch memorandum | — |  |
| 2025-10-30 | Equity | Round to scale up production | $104m |  |
| 2025-05-01 | Equity | Founders Fund (lead) | €43m |  |

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Source: SpaceCAPEX — https://www.spacecapex.com/en/companies/endurosat