the company is umbraco core, a cms (content management system) developed by tenacity, a uk-based software development agency. umbraco provides a robust and scalable solution for building websites and managing content, with a strong focus on security and performance. the system allows developers to create custom layouts and templates, as well as integrate with third-party tools and services. umbraco is known for its flexibility and customization options, making it a popular choice for businesses and organizations of all sizes.