Greece Energy & Power Suppliers

HelleniQ Energy, formerly Hellenic Petroleum, is Greece's largest energy group and one of Southeast Europe's leading oil and gas companies, founded in 1998 from the consolidation of Greece's state petroleum assets. Headquartered in Athens, the group employs about 3,000 people and generates annual revenue of roughly EUR 12 billion, operating refineries, a petrochemical complex, and a fuel retail network across Greece, Cyprus, Bulgaria, and North Macedonia.\n\nThe group's three refineries — Aspropyrgos, Elefsina, and Thessaloniki — have a combined capacity of about 15 million tonnes per year and are among the most complex in the Mediterranean, able to process heavy and sour crudes into high-value products including fuels, bitumen, and lubricants. Its retail network operates more than 1,500 service stations under the EKO and Hellenic Petroleum brands, and its DESFA stake and gas trading activities make it a key player in the Eastern Mediterranean energy corridor. HelleniQ Energy is also investing in renewables, green hydrogen, and a major effort to upgrade its refineries to produce sustainable aviation fuel.\n\nFor buyers in the Eastern Mediterranean and Balkans, HelleniQ Energy is the anchor supplier of fuels and petrochemicals, with deep logistics integration across ports, pipelines, and storage — and a growing procurement pipeline for refinery modernization and renewable-energy equipment.

Kosmos Energeia is a Thermi, Thessaloniki-based company in the power engineering sector with more than 30 years of experience. It delivers energy projects and services intended to shield businesses, buildings, and households from cost increases and to eliminate energy expenses, with solutions designed around guaranteed results. The firm develops energy self-generation projects that convert energy from an expense into a revenue source.

BATTERY EXPERT is a battery technology distributor located in Axarnais, Greece. The company supplies a broad range of accumulator and battery types, with particular emphasis on products for photovoltaic systems. Its solar batteries are built with reinforced plates, giving them high reliability, suitability for repeated cyclic charging, and extended service life, making them appropriate for demanding applications. Drawing on expertise in the energy sector, the firm aims to match each customer's requirements with a suitable battery product. The business operates with a small team of five to nine employees.

IKONOMOU Z. KOSTAS is a wholesaler based in Chalandri, Greece, operating under the ECOFER brand. It manufactures ECOFER SMART and ECOFER SMARTSOL solar collectors for Mediterranean and cold continental climates with reduced solar radiation, offered in eight sizes from 1.5 to 2.9 m2 and compliant with ISO quality standards plus SOLAR KEYMARK and DIN CERTCO certification. The ECOFER UVC air conditioner, rated A+++, combines third-generation UVC LED radiation, 58 C self-cleaning and nanometre-level virus filters using silver, cupric and zinc ions. Portable ECOFER ICE, 4seasons and PROFESSIONAL units provide cooling, heating, dehumidification and fan modes for spaces where external units cannot be installed. ECOFER EASY, FAST, COMFORT and FINE dehumidifiers handle 11, 13, 17 and 21 litres per day.

S.D.MELAS TRADING BUSINESS is a wholesaler based in Patra, Greece, active in the power engineering sector. The company distributes power engineering products and equipment to trade customers from its Greek base.