MODÜL ÇELİK was founded in 2001 based on a common experience IN STRUCTURAL STEEL MANUFACTURING sector of Cenk Karaloğlu who has a trade experience backed from 1987 and Gülten Karaloğlu who has a strong background in management and organization. Later Av. Caner Karaloğlu participated in coalition after completion his education in the law field.

MODÜLÇELİK is one of the leading company in the sector with a production capacity over 40.000 tons, active in a production field of 90.000 m2 in Kartepe District, Kocaeli province at the updated and technological machinery with educated and certificated staff.

Since it has been founded MODÜL ÇELİK set forth its power in engineering, manufacturing and mounting in international standards with the huge projects in and out of country, excellent customers’ relations and higher quality concept.

MODÜL ÇELİK gets strenght in the national and international arena from the projects that have been realized in the time it is active in the sector such as industrial structures, petroleum refineries, bridges, plant buildings, skyrockets, airports, shopping malls, sports complexes, aesthetical constructions, HOTELs, vessels, congress centers, housings, Icosa structures, stainless piping and equipment manufacturings. MODÜL ÇELİK has been proceeding on its way with proud and stability in order to get the place in the globalized world.


The indispensible values of MODÜL ÇELİK is perfection, innovation, speed, traditional family values, happiness and reliability of the employees and Professional ethic.

MODÜL ÇELİK who obtaine quality system certificates of ISO 9001:2008, DIN 18800-7:2008-11 (CLASS E ) , (EXC4) EN 1090-1:2009 , (EXC4) EN1090-2:0-2008, EN 287, DIN EN ISO 3834 – 2, OHSAS 18001:2007, ISO 14001:2004 proceeds its Works with a dynamic structure and understandings of D&R studies, human resources, Project and quality management, production and mounting processes, higher Professional safety, and good customers’ relations and a special tracking system (IFS) software.

Apart from those we continue to realize social responsibility projects with constructing sports and social plants, natural parks and the supports given to education aiming at to be respectful to human and nature.