SpectraWorks
SpectraWorks B.V. is a Dutch deep-tech building cross-sensor spectral calibration infrastructure for Earth observation. Operates RefCal (calibration methodology) and is preparing the HORUS-1 orbital payload as a Tier 1 reference anchor.
SpectraWorks B.V. is a Dutch deep-tech company headquartered in Noordwijk, Netherlands, focused on calibration infrastructure for Earth observation. Founded in 2026 (KvK 42018290), the company's primary technology is RefCal, a calibration transfer architecture designed to make spectral measurements from different sensors, platforms, and time periods mutually comparable, traceable, and suitable for regulatory and scientific use.[^sw-home]
RefCal v1 was in testing as of mid-2026, with patents filed. The company also operates EO-Atlas (eo-atlas.org), an open catalogue of EO sensors, missions, data products, companies, standards, and topics.[^sw-home]
SpectraWorks is developing a suite of applied services built on its calibration layer, including per-supplier deforestation verification (targeting EUDR compliance), ongoing EUDR and CSRD monitoring subscriptions, a wholesale calibration API for compliance platforms, and payload pre-launch spectral characterisation services.[^sw-products] The company has publicly described plans for HORUS-1, a planned calibration-grade hyperspectral satellite intended to serve as an orbital reference anchor, though no launch contract or confirmed specifications had been publicly disclosed as of mid-2026.[^sw-home]
No funding rounds or named customer relationships had been publicly announced as of 2026-05-24.