Startup · Denmark
QuadSAT
Updated HQ Odense, DenmarkFounded 201711-50 employees
Develops radio frequency detection and geolocation payloads and software enabling electromagnetic spectrum control for defense operations.
Funding5 rounds · ~$18.7M
- Equity raised
- ~$18.7M
- Latest
- ~$5.8MSeries A · Jul 17, 2025
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Jul 17, 2025 | Series A | ~$5.8M | — | JOIN Capital | — | Reported |
| Mar 15, 2023 | Series A | ~$9.6M | — | IQ Capital | — | Reported |
| Sep 10, 2020 | Seed | ~$2.4M | — | Seraphim Space | — | Reported |
| Jan 16, 2019 | Seed | ~$902K | — | Seraphim Space | — | Reported |
| Jun 19, 2018 | Seed | Undisclosed | — | — | — | Reported |
- Series ALed by JOIN Capital~$5.8MJul 17, 2025
- Series ALed by IQ Capital~$9.6MMar 15, 2023
- SeedLed by Seraphim Space~$2.4MSep 10, 2020
- SeedLed by Seraphim Space~$902KJan 16, 2019
- SeedUndisclosedJun 19, 2018
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.
Systems2
Newest unveiled first. Systems that belong to a government program link to the program page, where variants, costs and contracts are.
Capabilities2
| Technology | Role | Maturity | TRL | Notes | Confidence |
|---|---|---|---|---|---|
| ISR and targeting | Developer | — | — | classify_sectors run 37, haiku, taxonomy 2026-10-18b: Radio frequency detection and geolocation payloads enabling spectrum control for defense operations. | Reported |
| Positioning, navigation, timing and spectrum resilience | Developer | — | — | classify_sectors run 37, haiku, taxonomy 2026-10-18b: Radio frequency detection and geolocation payloads enabling spectrum control for defense operations. | Reported |
- Developerclassify_sectors run 37, haiku, taxonomy 2026-10-18b: Radio frequency detection and geolocation payloads enabling spectrum control for defense operations.—Reported
- Developerclassify_sectors run 37, haiku, taxonomy 2026-10-18b: Radio frequency detection and geolocation payloads enabling spectrum control for defense operations.—Reported
Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.
People3
| Person | Role |
|---|---|
| Andrian Buchi | CTO & Co-Founder |
| Joakim Espeland | Founder |
| Joakim Espeland | CEO |
Sources6
Profile1
- 1
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "Denmark", "hq_iso2": "DK", "id": "ff490767-413e-4af0-8819-a19d7d6eb2e4"}”
Systems2
- 2CompanyQuadsat - Quadsat
QuadSAT · Supports Organization · description, Organization · linkedin url, Organization · name, Organization · website, System
“Develops radio frequency detection and geolocation payloads and software enabling electromagnetic spectrum control for defense operations.”
- 3CompanyRF Solutions | Quadsat
QuadSAT · Supports System
“SpectraLoc is an airborne RF detection system that detects, characterizes, direction-finds, and geolocates RF emitters in real time – providing operators with live spectrum awareness and actionable intelligence from a single platform.”
Funding1
- 4
LinkedIn · Supports Funding round, Organization · employee range, Organization · founded year, Organization · hq city, Organization · hq region, Organization · ownership, Role
“funding round: Series A, 2025-07-17, DKK 37,000,000, lead: Join Capital;North Ventures”
People2
- 5NewsRelated News
esoc.esa.int · Supports Role
““We are really excited to be working with ESA,” says Joakim Espeland, CEO of QuadSAT.”
- 6
hardtechuk.com · Supports Role
“QuadSAT is a Denmark-based defence technology company founded in 2017 by Joakim Espeland (CEO) and Andrian Buchi (CTO), who met as mechanical engineering students at VIA University College.”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.