Radiant SAS

Radiant SAS, located in France, specializes in solar-based renewable energy solutions, particularly for industrial heat generation, offering innovative technologies to replace fossil fuels effectively. Radiant SAS was founded in 2024 in Massy, France, focusing on providing advanced solar thermal energy solutions. The company has completed 1 deal, with its most recent funding round occurring on January 27, 2026, where it raised EUR 2 million from Tiresias Angels. This funding will support the development of its first industrial demonstrator to validate the effectiveness of its solar thermal technology.

Radiant specializes in providing renewable energy solutions for industrial heat generation through its flagship product, Belenos. This innovative technology utilizes advanced solar concentration methods to deliver high-temperature heat ranging from 200°C to over 1000°C at competitive prices, making it a viable alternative to fossil fuels. Belenos operates by employing state-of-the-art heliostats that track the sun and concentrate solar radiation, which is then transformed into usable thermal energy. The product is designed for industries with high thermal demands, such as construction, manufacturing, and food processing, allowing them to significantly reduce their carbon footprints while maintaining operational efficiency.

Radiant targets markets across Europe, focusing on countries actively pursuing decarbonization, such as Germany, France, and the Netherlands, where industrial emissions regulations are particularly stringent. Radiant's revenue model is predicated on providing Belenos technology to industrial clients through direct partnerships and bulk contracts. The company engages in B2B transactions, offering customized solutions to meet the specific thermal energy needs of each client. Revenue is generated through upfront sales of the Belenos system, along with ongoing service agreements that may include maintenance and operational support.

The pricing structure is designed to be competitive, with Belenos marketed as 50% less expensive than alternative solar solutions, thereby incentivizing potential clients to transition away from fossil fuels. By establishing long-term relationships with industrial partners, Radiant ensures continuous revenue through both the sale of equipment and ancillary services that facilitate the integration of solar thermal systems into existing operations. In January 2026, Radiant SAS raised EUR 2 million in venture funding to build its first industrial demonstrator in Le Mans, aimed at validating the scalability and efficient deployment of its solar thermal technology. The company is focused on expanding into new markets, with plans to enhance its reach across Europe, specifically targeting regions with stringent industrial emissions regulations by the end of 2026.