Enerjisa Enerji is Turkey's leading electricity distribution and retail company, serving roughly 10 million customers across three licensed regions (Istanbul-Anatolian side, Başkent covering Ankara and central Anatolia, and Toroslar covering southern Turkey) and a population-served footprint of more than 21 million people.
The company is a 50/50 joint venture between Sabancı Holding and E.ON SE of Germany, organised through a Turkish A.Ş. parent listed on Borsa Istanbul under ENJSA since its February 2018 IPO - Turkey's largest IPO of that year.
Enerjisa Enerji operates a regulated electricity distribution network spanning tens of thousands of kilometres of lines, plus a competitive retail business supplying electricity and related services to residential, commercial, and industrial customers.
A sister company, Enerjisa Üretim, remains privately held within the Sabancı/E.ON partnership and focuses on electricity generation including gas, lignite, wind, hydro, and solar. Enerjisa is one of the clearest examples in Turkey of a large-scale, long-duration, regulated-asset business built through a structured partnership between a Turkish holding and a European strategic.
Enerjisa's corporate structure is a case study in how to partner a Turkish holding with a European strategic through multi-decade privatisation auctions. The original Enerjisa was established in 1996 as a small Sabancı energy vehicle.
In 2009 Sabancı and Verbund of Austria formed a joint venture, and in 2013 that venture was replaced by a 50/50 partnership between Sabancı and E.ON SE - the new majority structure then aggressively acquired Turkish electricity distribution licences in the 2010-2013 privatisation rounds.
Rather than bid through Sabancı Holding directly, the partners used Enerjisa as a dedicated bid vehicle, insulating Sabancı's other businesses from regulatory and concession risk, and allowing E.ON to deploy capital into a defined Turkish-regulated perimeter without owning any part of Sabancı Holding itself.
When the group prepared to monetise part of the distribution and retail business, it carved out Enerjisa Enerji - the regulated distribution and retail arm - as a standalone listed A.Ş. and kept Enerjisa Üretim - the generation arm - private.
This carve-out solved two problems at once: it let public-market investors value a stable, regulated-return utility under EMRA (Turkey's energy regulator) without being exposed to merchant power-generation volatility, and it preserved flexibility for Sabancı/E.ON to later sell or restructure the generation side separately (which they did, bringing in Mubadala-backed capital for generation).
The February 2018 IPO raised roughly TRY 1.8 billion and was the first Turkish utility IPO in more than a decade.
For founders, three lessons stand out. First, in regulated sectors, always bid through a single-purpose vehicle - never contaminate a diversified holding with licence risk. Second, split regulated and merchant arms into separate A.Ş. entities so each can find its natural capital base (public equity for regulated, private or infra funds for merchant).
Third, 50/50 JV structures work only with a clear deadlock mechanism in the shareholders' agreement - Sabancı and E.ON built theirs in, and it has kept the partnership functional for over a decade.
Enerjisa Enerji is headquartered in Istanbul, at the NidaKule Ataşehir Batı office complex in the Ataşehir business district on the Asian side of the Bosphorus. The Ataşehir headquarters houses the company's executive team, regulatory and financial functions, and central technical operations.
Distribution operations are run from regional offices across the three licensed regions, Istanbul's Anatolian side (AYEDAŞ), Ankara and surrounding central Anatolia (Başkent), and the southern Turkish Toroslar region, each of which holds its own EMRA distribution licence. Enerjisa Üretim, the privately held generation sister company, is also headquartered in Istanbul.
Enerjisa Enerji is jointly controlled by Sabancı Holding and E.ON SE of Germany, each holding 40% of the listed company, with the remaining 20% trading as free float on Borsa Istanbul. At the ultimate beneficial level, Sabancı's stake is held through the wider Sabancı Holding A.Ş. structure, while E.ON holds its interest directly through E.ON SE.
The shareholders' agreement between Sabancı and E.ON governs board composition, reserved matters, and dividend policy, and is one of the longest-running and most-cited Turkish utility JV agreements. The separate generation company Enerjisa Üretim is majority-controlled by Sabancı with an E.ON interest.
Yes. Enerjisa Enerji has been listed on Borsa Istanbul under the ticker ENJSA since February 2018, following an initial public offering that raised roughly TRY 1.8 billion at issue, the largest Turkish IPO of 2018. The company is included in the BIST 50 and BIST 100 indices and files quarterly financials under IFRS. Its sister company, Enerjisa Üretim (which handles generation), is privately held and not listed.
Enerjisa Enerji also regularly issues Turkish-lira-denominated bonds to institutional investors through Borsa Istanbul's debt market, and its financial policy is one of the more predictable among Turkish utilities given its regulated revenue base.
Enerjisa Enerji operates a regulated electricity distribution business and a competitive electricity retail business in Turkey.
Through its three subsidiaries, AYEDAŞ (Istanbul's Anatolian side), Başkent EDAŞ (Ankara and central Anatolia), and Toroslar EDAŞ (southern Turkey), it runs tens of thousands of kilometres of distribution lines and serves about 10 million billing customers, or roughly 21 million end-users when accounting for household members.
On the retail side, it supplies electricity to residential, commercial, and industrial customers and offers value-added services such as energy efficiency, solar, electric vehicle charging, and home insurance products. Its sister company Enerjisa Üretim, separately held, handles electricity generation including gas, lignite, wind, hydro, and solar assets.
