ProSeller AG is a provider of products and services such as software maintenance services,software consultants, data warehousing,training courses, networking and system administration,training courses, operating systems,software quality assurance services,software, archive management,software for wholesale applications,software for retail chains,software, point of sale (epos),software, business and management performance support,software, financial analysis,software, production planning/scheduling,software, construction industry,software, chemicals for building materials,software, architecture,software, aviation,software, marine engineering and naval architecture.