Domna

Established in 2023 and based in London, UK, Domna, fka Hestia provides comprehensive retrofit solutions aimed at improving energy efficiency in residential properties. In January 2025, Leon Capital acquired a majority stake in Domna for GBP 70 million. As of January 2025, the company is led by its CEO, Anna Moore. The company's core offerings include a proprietary retrofit assessment software that delivers accurate predictions of costed works programs, enabling property owners to identify energy efficiency measures such as insulation upgrades, glazing improvements, and renewable energy installations.

Domna's services encompass a streamlined process that includes portfolio assessment, securing funding through government schemes, coordination of retrofit projects, and the provision of a building passport for compliance and reporting. The firm’s clientele primarily consists of landlords, asset managers, and property managers who seek to improve their properties' energy efficiency and reduce operational costs, benefiting end users through increased comfort and reduced energy bills. Domna operates a revenue model that leverages multiple transaction structures, including B2B partnerships and direct-to-consumer engagements. Revenue is generated through service fees associated with the consultation, design, and coordination of retrofit works.

Additionally, Domna receives commissions or fees for connecting clients with funding sources, including government grants and private lenders. The organization plans to use the January 2025 funding to expand its market presence with product launches and geographic diversification.