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Top 10 Biggest Companies in the Balkans: Leaders in Energy, Retail, and Telecom

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  • February 16, 2026
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Top 10 Biggest Companies in the Balkans

The Balkans is home to some of Southeast Europe’s most influential and revenue-generating companies. From energy and oil giants to retail and telecom leaders, these firms drive the region’s economy and employment.


1. Naftna Industrija Srbije (NIS) – Serbia

Industry: Oil & Gas
NIS is Serbia’s largest oil company, involved in refining, exploration, and fuel distribution. It plays a critical role in Serbia’s energy supply and regional exports.


2. Elektroprivreda Srbije (EPS) – Serbia

Industry: Electricity & Utilities
EPS is a state-owned electricity giant generating and distributing power across Serbia. It is one of the region’s largest industrial employers.


3. Lukoil Neftohim Burgas – Bulgaria

Industry: Oil Refining
Lukoil Neftohim Burgas is Bulgaria’s largest oil refinery, processing millions of tonnes of crude oil annually and contributing significantly to national GDP.


4. OMV Petrom – Romania

Industry: Oil & Gas
Headquartered in Romania, OMV Petrom is Southeast Europe’s largest company by revenue. It focuses on oil, gas, and petrochemicals, making it a regional energy powerhouse.


5. INA d.d. – Croatia

Industry: Oil & Gas
Croatia’s leading oil and gas company, INA operates in refining, exploration, and fuel retailing, ranking among the top Balkan enterprises.


6. Kaufland – Romania & Balkans Operations

Industry: Retail
Kaufland is a major supermarket and wholesale chain operating across the Balkans. Its extensive network drives high regional revenues in consumer markets.


7. Telekom Srbija – Serbia

Industry: Telecommunications
Telekom Srbija provides mobile, internet, and fixed-line services across Serbia and the Western Balkans, connecting millions of customers.


8. Bingo – Bosnia & Herzegovina

Industry: Retail
Bingo is Bosnia’s largest retail chain, with hundreds of stores and a billion-euro annual revenue, making it a leading private company in the region.


9. Bulmarket DM – Bulgaria

Industry: Petroleum Distribution
Bulmarket DM distributes petroleum products, including LPG and oil, across Bulgaria and neighboring countries, ensuring energy supply logistics.


10. BH Telecom – Bosnia & Herzegovina

Industry: Telecommunications
BH Telecom is the leading telecom provider in Bosnia and Herzegovina, offering mobile, internet, and digital services to millions nationwide.


Conclusion

The Balkans’ largest companies are dominated by energy, retail, and telecommunications sectors, reflecting the region’s strategic importance in Southeast Europe. These firms not only drive economic growth but also shape regional employment, infrastructure, and development.