İdris Çakır graduated from Yıldız Technical University Mechanical Engineering in 1992. Between 1995 and 2002 of his career, he worked as Project Coordinator at Cantes Klima. In 2002, he resigned from this company and founded Birleşim Mühendislik AŞ, which provides mechanical system solutions. In accordance with the goal of establishing Birleşim Group companies, he added Birleşim İnşaat AŞ and Birleşim Makina AŞ to group companies in 2006 and 2011, respectively.
In 2014, Mr. Çakır signed a strategic partnership agreement to purchase 100% of Erde Mühendislik, which is one of the pioneer companies in electrical contracting industry and founded an engineering firm that creates electromechanical contracting solutions to be one of the first in its industry with Birleşim Mühendislik. He made investments in hospitality industry by opening Ataşehir Park-Inn by Radisson Hotel in 2016 and in heavy machinery industry by incorporating Toro Makina AŞ to its group companies in 2018.
As of 2020, Birleşim Grup Enerji Yatırımları AŞ, which started to serve in the field of renewable energy, has included Edikli SPP, Uluder SPP and Gülbahar SPP plants, all of which are licensed, respectively, under its roof. While realizing the Menekşe WPP investment in the field of wind energy, ZEN Enerji was added to the energy group in 2023. With Zen Enerji, solar power plants with a total installed capacity of 48 MWp were commissioned in Burdur, Eskişehir, Kırıkkale, Kütahya, Isparta and Uşak.Solar Santral Enerji AŞ, a company that has been active in all aspects of solar power plant Project development, installation, and financing since 2020, became a Birleşim Group subsidiary at the end of 2022 after a 70% stake was acquired in the company.
İdris Çakır acts as the Chair of the Board and Deputy Chair of the Board at Birleşim Mühendislik AŞ, Erde Mühendislik AŞ, Birleşim Grup Enerji Yatırımları AŞ, Birleşim Makina AŞ, Birleşim İnşaat AŞ within Birleşim Group companies.