Operating Thesis
Mainsource was established on the belief that the most valuable assets in international commerce are strategic positions that generate recurring opportunities for enduring value creation. Through a systematic approach, we expand market access, protect commercial execution, and ensure predictability within the value chain.
Alexander Milenov
Alexander is the Founder and Chief Executive Officer of Mainsource. He holds a Master’s degree in Marketing from the University of National and World Economy, Bulgaria, and has more than 25 years of experience in business management, international trade, market development, and corporate strategy across both the public and private sectors.
His main goal has always been to build a sustainable company, so he combined commercial operations with long-term investment thinking. Years of practical experience show that building and developing strategic positions within value chains create recurring commercial opportunities for capitalization. This became the foundation of Mainsource.
Katya Milenova
Katya is the Chief Operating Officer and Official Spokesperson of Mainsource. She holds a Master’s degree in International Business and Management from the D. A. Tsenov Academy of Economics, Bulgaria, and has more than 18 years of experience in project execution, operational governance, and compliance across international environments.
Her objective has always been to ensure disciplined execution and operational reliability. She converts strategy into structured implementation, ensuring that every commercial engagement is realized with consistency, predictability, and uncompromising standards. Recognized as a trusted market expert, she presents the company’s perspectives in business media.
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