Aplicaciones y Tratamiento de Sistemas, S.A. Aplicaciones y Tratamiento de Sistemas, S.A. (ATSI.MC), operating as atSistemas or Knowmad Mood, provides IT consulting, services, and software development focused on digital transformation for clients across various industries in Spain and internationally. Founded in 1994 and headquartered in Las Rozas de Madrid, Spain, the company employs approximately 2,550 professionals and operates through an international network of offices in Europe, the Americas, and the Middle East, including locations in the UK, Italy, Portugal, Mexico, and the US. Its core offerings encompass IT governance; channels and commerce; digital design and user experience; architecture and custom application development; data analytics and business intelligence; customer experience and marketing solutions; culture and workplace services; cloud infrastructure and management; systems integration; managed services; ERP and CRM implementations; open banking; e-commerce platforms; mobile applications; DevOps; big data; blockchain; and resale of third-party software licenses, primarily Atlassian products, supporting corporate digitalization in areas such as software architecture, IT management, industrialization, and cloud services. Revenue segments include Architecture & Apps, Government IT Management and Industrialization, Channels & Peripherals, Cloud & Infrastructure, Data & Analytics, Culture & Workplace, Digital Design & UX, Commerce & DXP, Modern Business & Marketing, and Emerging Solutions, with approximately 88% of revenue from Spain and the balance from international operations in 10 countries. Recent developments feature a 25% year-over-year revenue increase to 210.03 million euros in 2024; a new strategic partnership with Efecte announced in September 2024 to expand service management capabilities in Spain; ongoing international expansion since 2019; and an initial public offering on BME Growth in December 2022, enhancing its position as a key player in the European IT services market.