and mission code of conduct group companies construction energy heavy equipment news media news press releases k pr stfa group corporate magazine investor relations careers contact us 78 years of experience epc contracts ; marine civil infrastructure oil gas and power soil works engineering . learn more in 24 countries energy everyday everywhere enerya s operations in the energy sector are aimed towards natural gas distributionand other potential energy projects and include stock ownership of varying rates ingas distribution companies in 11 turkish cities . learn more hope is in the yellow if you dream of designing a new home that takes full advantage of the unique geography and views of land that you love learn more khan academy tr you only have to know one thing you can learn anything a free world class education for anyone anywhere . learn how people and innovation it is not surprising to have also innovation as the main value of a company which has engineering design finding solutions and creative in its history culture and genes . read more group companies heavy equipmentenergyconstruction construction stfa had its beginnings in 1938 . two young engineers sezai t rkes and feyzi akkaya saw the need in the new turkish republic s growing economy for facilities for bridge construction and piling operations in the country . read more energy enerya was founded in 2003 in istanbul to facilitate in natural gas electricity and water distribution . enerya currently distributes natural gas in 11 cities which has the highest customer potential among all private natural gas distributors in turkey . read more heavy equipment sif otomotiv has steadily grown its business in the construction equipment sector since it was founded in 1956 by sezai t rke feyzi akkaya as a subsidiary of stfa and is klar holding . read more you may find interesting 75th anniversary constructing a world the book stfa collected its 75 years in the book named i lk first stfa from ... khan academy t rk e the global classroom a free world class education for anyone anywhere . k pr stfa group corporate magazine read k pr bridge in english the official corporate magazine of stfa group . stfa careers have a bright future with a company who values its employees . more info recent news stfa and the korean giant hyundai elevator have signed a partnership agreement 22 07 2016 comments off . making a powerful entry into the turkish market in 2010 with the collaboration of stfa group the korean giant hyundai elevator ; ... read more stfa s tevit l future camp received most innovative corporate social responsibility award 29 03 2016 comments off . the winners of annual tisk corporate social responsibility awards organized by the turkish confederation of employer associations tisk were announced . projects ... read more stfa s first sustainability report received three awards in the u.s. 13 04 2015 comments off . stfa investment holding s first sustainability report received three communication awards at the 2014 inspire awards corporate publishing competition organized by the ... read more new project of al habtoor stfa soil group 13 04 2015 comments off . al habtoor stfa soil group llc has received loi letter of intent on march 29 2015 to sign contract for the enabling ... read more stfa won qatar doha metro gold line tender 18 03 2015 comments off . stfa within a consortium of five competed against world s biggest companies and won qatar doha metro gold line tender for 4.4 ... read more you only have to know one thing you can learn anything . more info follow us sustainability responsibilitysustainable development & csr innovation reports publications privacy and securityconfidentiality policy copyrights and terms of use disclaimer otherinformation society services tevit l ola an st stfa yat r m holding a. . group companies construction energy heavy equipment