INFEO Marcin Marek Gryszko is a team of experienced and committed enthusiasts of modern web solutions. They have created and successfully run many of their own Internet projects, such as Poland's largest online tutoring service www.e-korepetycje.net or the translation agency service www.e-tlumacze.net. The team has been also involved in projects using modern GNSS positioning technologies and satellite imagery for the presentation of geodata for products related to inland water reservoirs and IT and ICT services for several years. The project team carried out and implemented tasks related to the application of GNSS techniques, satellite imagery and mobile applications for the navigation and inland navigation sector. The latest venture is Sail Zegluj app - navigation for lakes.