Hydrosat, a dual-headquartered Washington D.C. and Luxembourg provider of thermal infrared satellite data, closed a $60 million Series B round on 15 January 2026 to fund constellation expansion, next-generation sensor development, and geographic growth across civil government, commercial, and defense markets. The raise brings the company’s total disclosed funding to over $95 million since its founding in 2017.
A Constellation Built Around Water Stress
Hydrosat was established by Pieter Fossel, Royce Dalby, Yunjin Kim, and the late Jakob van Zyl, with a founding thesis that thermal infrared data from orbit could unlock a new class of intelligence about how water moves through crops, soils, and landscapes. The company develops and operates its own satellites equipped with thermal sensors that measure surface temperature at field scale. Those temperature readings, processed through proprietary machine-learning models, are converted into actionable estimates of evapotranspiration, crop water stress, irrigation intensity, and drought risk.
The company currently operates two thermal infrared satellites in orbit. Its first commercial mission, VanZyl-1, launched in August 2024 aboard a SpaceX Falcon 9 via satellite services provider Loft Orbital and was built with a thermal infrared camera developed by ABB. With both satellites active, Hydrosat’s daily coverage now exceeds 10 million square kilometers across more than 60 countries, representing a significant capacity advantage over legacy commercial thermal data sources, which typically offer lower resolution and less frequent revisit.
Round Structure and Investor Base
The Series B was led by Hartree Partners, a global merchant commodities firm with deep exposure to energy and agricultural markets, alongside Subutai Capital Partners and Space 4 Earth. New institutional investor Truffle Capital, a Paris-based venture firm managing approximately €500 million in assets across life sciences and deep tech, joined the round for the first time.
Follow-on support came from a group of existing backers including the Luxembourg Future Fund, OTB Ventures, Blue Bear Capital, Statkraft Ventures, Cultivation Capital, and Santa Barbara Venture Partners. According to data reported by Resilience Media, approximately $18 million of the total had already been raised in late August 2025 from what Hydrosat described at the time as an undisclosed investor, subsequently identified as the Luxembourg Future Fund. The January 2026 announcement consolidated the full round, which reflects both the core Series B and supplemental equity tranches.
Constellation Scale-Up and Regional Expansion
Hydrosat intends to deploy the capital across three primary areas: launching additional satellites with improved thermal sensor specifications, deepening its engineering operations in Carlsbad, California and Luxembourg, and extending commercial reach into Central Asia, the MENA region, India, and Latin America. These geographies represent a combination of high agricultural intensity and acute water scarcity, making them natural markets for temperature-based irrigation intelligence.
The company has already begun building the next block of its satellite constellation, which it says will deliver a step change in both imaging resolution and daily revisit capacity. Higher revisit frequency matters in agricultural applications, where crop stress can develop and change within days and decisions about irrigation must be made at the field level, not the watershed level.
Customers Across Agriculture, Government, and Defense
Hydrosat’s current customer base spans agencies and enterprises that sit at the intersection of water, food, and security. Publicly confirmed clients include the National Oceanic and Atmospheric Administration (NOAA), the National Reconnaissance Office (NRO), agricultural technology companies Bayer, SupPlant, and Nutradrip. The company also holds multiple contracts with the U.S. Air Force and Space Force, with a $1.9 million contract disclosed in connection with improving weather prediction models.
The defense angle is increasingly prominent in how Hydrosat positions its data. Thermal signatures captured at daily cadence reveal ground activity patterns, changes in irrigation infrastructure, and landscape temperature shifts that are not visible in standard optical imagery. This dual-use characteristic makes thermal satellite data a growing priority for intelligence and national security organizations operating in regions where water and agricultural conditions serve as leading indicators of instability.
Market Positioning and Sector Context
Thermal infrared imagery from orbit has historically been the domain of government satellite programs, including NASA’s ASTER and Landsat instruments, which provide relatively coarse resolution and infrequent revisit. A small group of commercial operators has begun filling the gap, but high-resolution, high-cadence thermal coverage at field scale remains scarce. Hydrosat is positioning its constellation as foundational data infrastructure at this intersection of agricultural analytics, climate resilience, and geospatial intelligence.
The convergence of investor types in this round reflects that positioning. Hartree Partners brings commodity market expertise; Truffle Capital brings financial services and insurance sector relationships; the Luxembourg Future Fund provides sovereign backing aligned with European space and digital strategy. The mix signals that thermal satellite data is beginning to be treated as infrastructure by capital allocators across multiple industries, rather than as a niche remote sensing product.
Satellite-based approaches to water monitoring are gaining broader traction across utilities and government agencies. Anglian Water in the UK, for instance, has explored satellite technology from Asterra for rural leak detection, illustrating how space-based tools are being integrated into water network management at scale.
