Renewable Energy
Biomass-based renewable power generation with Oltan Koleoglu Energy—a growing plant network across Corum, Samsun, Afyon, and Karaman.
View DetailSUSTAINABLE FUTURE
We combine operational efficiency with environmental responsibility in biomass-focused investments.
Dogan Yatirim Holding
At Dogan Yatirim, we work to advance human health and a sustainable environment alongside the requirements of our business.
Our purpose is to contribute to emerging sectors while strengthening our existing verticals and creating new lines of business.
Our vision is to contribute to the national economy as a strong domestic and international brand. Our innovative, reliable, and dynamic management approach forms a mission centered on sustainable growth.

Across strategic sectors including renewable energy, mining, real estate, and private transportation services, we develop investments focused on sustainable growth, operational efficiency, and long-term value creation.
Biomass-based renewable power generation with Oltan Koleoglu Energy—a growing plant network across Corum, Samsun, Afyon, and Karaman.
View DetailBase and precious metals exploration and development across 13 licenses in six provinces with Madenci Baba Mining Inc. (MABA).
View DetailInvestments in national and international real estate structuring.
View DetailExclusive private flight experience.
View DetailPremium journeys across coasts and open waters.
View DetailOltan Koleoglu Energy
As of 2026, we continue to scale our operations sustainably with 100 MWe installed capacity, 67 MWe hybrid solar integration, 690 GWh annual generation, and more than 1 million tons of annual waste processing capacity.
100 MWe total installed capacity
67 MWe hybrid solar integration
Efficiency leadership with 90%+ capacity factor
Madenci Baba Mining
Since 2020, we have managed geology, exploration, and field development through an integrated operating model to transform base and precious metal potential into sustainable economic value. With a data-driven approach and modern field technologies, we focus on reliable resource development and long-term value creation across every project.

SUSTAINABILITY
We believe sustainability is not only about causing less harm, but about creating greater positive impact. Across our operations, we focus on technologies that reduce environmental footprint, processes that improve resource efficiency, and practices that generate long-term social value.
CAREER OPPORTUNITY
With a people-first mindset, we see our colleagues as key stakeholders and build a work culture that grows together.
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