Engineering, namely a study involving the design and execution of an industrial project in the field of marketing, processing services and computer data analysis for marketing purposes, information with respect to programing via a website, creating and maintaining Web sites for third parties, electronic storage of data for marketing purposes, advice for the optimization of website consulting, advice for information technology consulting with respect to marketing, design services, advice and development of software and websites for third parties, quality control with respect to marketing, all the aforesaid services are provided for customers by consultancy marketing enterprises for business strategy, marketing and digital purposes.