LLlum
Llum is a Valencia-based energy assistant that uses AI to analyse household and business electricity and gas bills sent over WhatsApp. It compares tariffs across the Spanish market, handles the switch to a new supplier, and checks rates again at six and eleven months. The service is free for consumers. Llum earns a commission from energy retailers such as Naturgy, Endesa, Octopus Energy and Repsol for each completed switch. Founder Héctor Gómez Vadillo started the business in L'Olleria in 2023 as the energy comparison and advisory company Kowiik. It opened offices in Albaida and Ontinyent in 2024 and joined Lanzadera's acceleration programme in 2025. It launched the Llum platform in 2026, having managed more than 5,000 electricity and gas contracts.
