Home retrofit · Seed
DSB
Lead generation and marketplace for holistic home retrofits.
- Location
- Germany
- Stage
- Seed
- Business model
- B2B SaaS and consultancy
- Co-investors
- IBB & Atlantic Labs
Overview.
Home retrofits are slow and messy. The residential sector produces about 30% of Europe’s CO2. Demand is rising but delivery breaks at four points. Assessment is piecemeal. Homeowners get tech-first quotes instead of a whole-home plan. Pricing is inconsistent across installers and regions. Execution requires several trades and permits so schedules slip without one owner of the workflow. Financing and subsidies are hard to navigate so many projects stall. Installer capacity is uneven across Germany which hurts quality and speed.
DSB simplifies the home energy retrofitting process with an integrated, asset-agnostic platform. Rather than focusing on individual technologies, DSB evaluates the entire energy profile of a home to recommend the most effective upgrades, supported by subsidized energy consultants. By connecting customers with a trusted network of suppliers and installers, DSB ensures fast, transparent, and competitively priced project execution. This holistic approach maximizes energy savings and long-term home value and supports a faster transition to a net-zero housing stock.
Why we invested.
The founding team has a strong track record, having built Germany’s second-largest heat pump company with €30M in annual revenue within a year. DSB achieved operational profitability in just four months, rapidly scaling its customer base to compete in the tough B2C market. Their vertically integrated platform drives multiple revenue streams: consulting fees, project commissions, and future expansion into material sourcing and financing, ensuring profitability at scale while keeping prices competitive.