NEC Software Solutions, based in the UK and founded in 1969, operates within the Computers and Technology sector, specifically focusing on computer software. The company employs over 5,000 individuals and reported revenue of approximately $231 million. NEC Software Solutions has developed a toolkit aimed at assisting local and combined authorities in England with place-based retrofit strategies. This toolkit, titled "Proto-Persona Retrofit Toolkit," is designed to help these authorities understand the diverse needs and motivations of households and property owners regarding retrofit initiatives. The document emphasizes the importance of effective engagement with various audiences to maximize the uptake of retrofit schemes and grants. It includes condensed proto-personas that can be used to validate existing persona sets and address barriers to engagement. The toolkit aims to provide a publicly accessible resource for authorities at different stages of developing their retrofit strategies, thereby facilitating improved communication and outreach efforts in the context of energy efficiency and sustainability initiatives.