About Us

STEMO is a private Bulgarian company founded by four computer specialists in 1991. Its first activities were software development and delivery of computer equipment.

Today STEMO is recognized as a leader in the field of the information and communication technologies. The company has own commercial offices, software house, support centers, warehouses, equipped with modern information, technological and transport facilities. The branch offices of the company are situated in the largest cities of Bulgaria: Sofia, Plovdiv, Varna, Stara Zagora, Burgas, Rousse, Blagoevgrad, Kozloduy, Gabrovo.


STEMO offers a broad portfolio of IT products, solutions and services which helps customers build and enhance the efficiency, productivity, security and reliability of their IT infrastructure.


Our versatile professional experience and expertise allow successful implementation of complex projects covering the complete life-cycle of each information system: consultations, research, analysis, design, planning, implementation, training, operation, optimization, maintenance and upgrade.

Since 2022 STEMO is part of the business group of A1. While keeping its operational autonomy, now our company has ability to extend its solutions with wide range of top-notch communications, payment and entertainment services as well as integrated business solutions provided by A1 around the world.


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