EST Energy was founded as a sales & service-oriented business partner of GE Digital Energy, became one of the best Polish UPS player to fill the market need for UPS systems, and is emphasizing service and support to differentiate itself from price-oriented competitors. EST Energy is an experienced and specialized company which has operated on the power supply systems market since 1991. We deliver and support complete systems guaranteeing of loads with electrical energy manufactured by GE Digital Energy, AEG, Legrand Group, MetaSystem. We specialize of uninterrupitible power supply systems with AC (computer network, transport controlling, data processing, operation wards in hospital, etc). EST Energy support different customers i.e. telecommunications, power engineering, mining, army, railway, banks and so on. During over 20 years of market activity of shareholders our company prepared and implemented on the sites a wide range of power supply systems with output power of several millions watts. We also offer services as regards designing, installation and starting up of power supply systems and on-site guarantee / post-guarantee customer support and maintenance contracts. We have had some success selling service contracts with key accounts and still develop the other opportunities.