Oxygen at Work is a pioneering environment-as-a-service startup in Switzerland dedicated to the next generation of sustainable office building design. Using a combination of natural plants, sensor technology and big data, we provide science-driven, nature-based interior design solutions to improve indoor air quality and achieve energy consumption efficiency in office spaces, as part of a sustainable building, as well as to promote health and well-being in the workplace. By working with tenants (e.g. Microsoft) as well as developers (e.g. Uptown Basel) we create great workplace experiences for the end users. Thanks to the indoor environment monitoring solution the end users can track the health, wellbeing and safety of their indoor environment, communicate it with their stakeholders and improve building operations.