The company Sideridi Bros s.a.. established legal 1977 based on m. Cistern – Kilkis and deliberated the implementation of public and private works Chwmatoygikwn.
The 1994 moved to a private area in the city of Kilkis.
The 2000 walks and tourist business sector with the
Foundation of Kristonia Suites Hotel link(www.kristonia.gr).
The 2004 extends the company's fleet by buying new earthmoving machinery and trucks.
The 2014 expanding on specific transport and geranometafores with Crane and truck fleet.
The 2015 founds the General Tourism Office Kristonia Travel with buses.
At the time of its establishment until today relying on hard work and dedication of the founder of the Mission of the company, showed high growth rates, as far as the economics of sizes and the range of its activities.
Plants of Sideridi Bros s.a.. located at 1 km. Kilkis-Metalikoy technical services and El. venizelou 69 the administrative services.