RH
Istanbul, TR
Founded in 1993, Rönesans Holding is an international construction and project development group active in data centres, industrial facilities, infrastructure, energy and healthcare, with 40,000+ employees.
Rönesans Holding is a project development, construction and engineering group founded in 1993 and headquartered in Türkiye. For those working on data centre infrastructure, the relevant part of its portfolio is its industrial facilities business, which covers data centres alongside industrial parks, ports and petrochemical production. The group self-performs engineering and construction rather than acting purely as a developer, and it operates internationally across Europe, Central Asia, the Far East, the Caribbean and Africa.
Beyond industrial facilities, Rönesans spans infrastructure and tunnelling, energy and renewable energy, healthcare facility development and operations, real estate and water treatment. Notable projects include the Lakhta Center in Russia, the Gotthard Base Tunnel in Switzerland, the Gaasperdammertunnel in the Netherlands, hospitals in the Caribbean and water-treatment plants in Sri Lanka. Engineering News-Record ranked the group as the 50th-largest international contractor in the world in 2025, and among the largest in Europe.
The company employs more than 40,000 people, drawn from 64 nationalities, and describes its approach as combining financial strength with engineering knowledge and international contracting experience. Its corporate foundation, REV, grants scholarships to thousands of students.