Founded by Panagiotis Athanasakopoulos, TWENTYONE is a boutique digital agency based in Athens with sixteen years of experience delivering successful projects. Intentionally remaining small, the agency ensures that senior engineers craft the code while designers remain intimately involved with the work, eliminating unnecessary layers often found in larger agencies. Specializing in complex and challenging projects, especially within the hospitality sector, TWENTYONE creates tailored digital solutions that combine usability, robustness, and scalability. Their expertise spans web and mobile platforms using technologies like React.js and React Native, advanced areas such as NLP and data science, plus integrations with PMS, cloud services, and payment systems. Operating from the modern Π55 hub, the agency upholds quality through peer code reviews, continuous testing, and complimentary