Solteo Raises €1.5 Million to accelerate the digital transformation of the solar sector in France

Solteo's all-in-one platform to streamline operations for solar installers raises 1.5M€ with Axeleo Capital, Kima Ventures and Campus Fund to accelerate its growth and boost its product.

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In a rapidly growing solar market, small and medium-sized installers, who play a central role in PV and renewable assets deployment, face logistical and administrative hurdles that limit their ability to scale. Similarly to how digital transformation revolutionizes construction and logistics, the solar industry is ripe for innovation. Today, solar installers often rely on different tools to manage a single project, leading to inefficiencies that slow down deployment and increase operational strain.

Recent trends have highlighted the urgency of addressing these inefficiencies. The French solar photovoltaic market has reached nearly one million residential rooftops equipped with panels and aims to quadruple this number by 2030. However, the 4,500 active installers, primarily small businesses, are struggling to keep up with demand.

To tackle these growing pains, new startups are entering the market. For example, some tools specialize in individual functions like technical studies or customer management. But few address the entire lifecycle of solar projects.

Solteo offers an all-in-one platform designed to simplify and optimize operations for solar installers. By integrating administrative workflows, technical and financial studies, and on-site technical visits into a single solution, Solteo’s software reduces inefficiencies and streamlines processes. As Alexandre, Solteo’s cofounder, puts it,“every minute we save for installers is time they can reinvest in accelerating solar adoption,”
This efficiency gain has resonated strongly with the market’s need. Since its launch in July 2023, Solteo has supported over 10,000 projects through a network of more than 100 clients.

With this funding round, Solteo is now positioned to accelerate its growth. This investment will enable the team to focus on three key areas: enhancing product capabilities to cover the entire solar project lifecycle, expanding its market presence in France, and growing its team to meet increasing demand. With recruitment already underway, Solteo aims to strengthen its engineering and customer support functions to ensure long-term scalability.

At Axeleo Capital, we believe the future of solar installation lies in modular, scalable solutions tailored to meet the needs of a rapidly growing market. Solteo’s modular approach — streamlining administrative workflows, sales processes, and field operations — aligns perfectly with this vision, positioning itself to expand across the value chain and empower solar professionals to meet France’s ambitious target of 4 million installations by 2030.

The founding team — Manon Hias, Alexandre d’Auvigny, and Kévin Bée — brings in a strong of expertise and a shared passion for the renewable energy sector. Manon, the CEO, is a graduate of SupOptique and HEC Paris, with a background in startups. Alexandre, the COO, is a Polytechnique and Supaéro alumnus who leads operational strategy and ensures Solteo’s solutions address real-world challenges faced by installers. Kévin, the CTO, is a Centrale graduate with deep experience in software development and product design.

‍We are thrilled to support Solteo on its mission to transform the solar sector and empower installers to drive the energy transition. Congratulations to the entire team on this important milestone — we look forward to supporting you as you continue to drive sustainable innovation !