ONEtoONE has advised Grau Zero on its sale to Plan-C Technologies. Grau Zero Lda. has over 40 years of experience operating in the special technical installations market, developing projects and installations of heating systems, ventilation and air conditioning, building maintenance and adjacent outdoor areas. Grau Zero is also active in the renewable energy sector. It provides engineering projects and solutions, from system installation and commissioning to technical support and general maintenance services. Plan-C Technologies is a company that has recently entered the Portuguese market, with several years of experience across Europe in countries such as France, Switzerland, and Germany. It focuses on efficient solutions for home automation and security. Their services include electrical, security, climate control, and home, business, and industrial automation installations. Plan-C Technologies also provides installation and Maintenance services in the renewable energy sector, particularly photovoltaic energy.