Digital Marketing.


App Solutions.

iOS & Android

About us

A team of qualified experts with more than 15 years of experience, will guide you step by step to the development and realization of your idea or your app.

About SEM International


SEM International is a company based in Sofia (Bulgary), developing native app or web based, iOS, Android and Windows Phone, developing eCommerce, static and dynamic websites, web applications-based, CMS for any kind of business, Search Engine Optimization and Search Engine Marketing. We build Advertising campaign, Adwords and Facebook Ads helps you to convert your business.