Company lists · Data refreshed September 2026

Top 25 Energy systems integration firms based in Türkiye

Name: Energy systems integration firms based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 574 companies tracked

RevenueBase identified 574 energy systems integration firms headquartered in Türkiye as of September 2026 and tracks 4,004 professional contacts across them, including 602 with verified work emails. Istanbul is the largest hub.

This list covers energy systems integration firms headquartered in Türkiye, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

574Companies

4,004Contacts tracked

602Verified emails

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The 25 largest energy systems integration firms based in Türkiye

Ranked by team size

Top 25 of 574 energy systems integration firms based in Türkiye, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy systems integration firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kontek Enerji̇	Partial evidence	İzmir, TürkiyeHQ checked Sep 28, 2026	51-200	190 contacts →
	Partial evidence “In the renewable energy sector and every area of industry, we combine energy production and savings solutions with digital automation, visualization-reporting technologies, and…” Source: RevenueBase Database · checked Sep 28, 2026
2	EEC Entegre Bina Kontrol Sistemleri	Partial evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	151 contacts →
	Partial evidence “EEC Integrated Building Control Systems is an engineering company that specializes in the automation of electrical, electronic and mechanical systems that make buildings safe and…” Source: RevenueBase Database · checked Sep 28, 2026
3	Inavitas	Strong evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	51-200	150 contacts →
	Strong evidence “inavitas is at the forefront of researching, developing, and delivering smart energy monitoring and management solutions for all scales' energy systems.” Source: RevenueBase Database · checked Sep 28, 2026
4	Egesim Group	Strong evidence	Gebze, TürkiyeHQ checked Sep 28, 2026	201-500	149 contacts →
	Strong evidence “EGESIM, founded in 1994, is an energy solutions company focused on industrial electrical and automation systems and EPC (engineering, procurement and construction) of geothermal…” Source: RevenueBase Database · checked Sep 28, 2026
5	MC Sistem	Indirect evidence	Çankaya Mahallesi, TürkiyeHQ checked Sep 28, 2026	201-500	101 contacts →
	Indirect evidence “MCSistem elektromekanik sistem entegrasyonu yapan bir kuruluştur.” Source: RevenueBase Database · checked Sep 28, 2026
6	Bartek Elektrik Sistemleri A.Ş	Partial evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	501-1,000	84 contacts →
	Partial evidence “Bartek Elektrik Sistemleri A.Ş, yüksek ve alçak gerilim elektrik tesisleri, enerji nakil hatları, otomasyon sistemleri ile kuvvetli ve zayıf akım sistemlerinin projelendirilmesi…” Source: RevenueBase Database · checked Sep 28, 2026
7	Omega Mühendislik	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect evidence “Omega Mühendislik, 1994 yılında girişimci Öner Çelebi tarafından kurulan, elektrik taahhüt sektöründe, proje, uygulama ve teknik danışmanlık alanlarında hizmet veren, alçak…” Source: RevenueBase Database · checked Sep 28, 2026
8	Green Group Of Companies	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	1,001-5,000	44 contacts →
	Indirect evidence “Green Holding, gelişen teknolojik ihtiyaçları profesyonel bir çerçevede karşılama hedefiyle, 2007 yılında yüzde yüz yerli sermaye ile kurulmuştur.” Source: RevenueBase Database · checked Sep 28, 2026
9	SBC Otomasyon Sistemleri San. VE Tic. A.Ş	Indirect evidence	Yukarıdudullu Mh., TürkiyeHQ checked Sep 28, 2026	51-200	44 contacts →
	Indirect evidence “We consolidate every detail of your building management and automation projects under a single roof.” Source: RevenueBase Database · checked Sep 28, 2026
10	Efex Elc. Engineering CO	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	41 contacts →
	Partial evidence “Efex Engineering provides turn-key solutions to his customers with experienced technical staff, who are certified as “Expert“ in energy sector.” Source: RevenueBase Database · checked Sep 28, 2026
11	Elkom Elektrik	Indirect evidence	Bayrakli, TürkiyeHQ checked Sep 28, 2026	51-200	36 contacts →
	Indirect evidence “Elkom Elektrik olarak 33 yıl önce çıktığımız bu yolculukta anahtar teslim kurulum hizmetleri ile yüzlerce tesisi devreye almakla kalmamış aynı zamanda tesislerin sürekliliği için…” Source: RevenueBase Database · checked Sep 28, 2026
12	Onmuş Elektrik Sanayi VE Ticaret A.Ş	Indirect evidence	İzmir, TürkiyeHQ checked Sep 28, 2026	51-200	35 contacts →
	Indirect evidence “1976 yılında İstanbul Devlet Mimarlık Akademisinin Elektrik bölümünden mezun olmuş olan Namık ONMUŞ çeşitli ortaklıklar yaparak serbest olarak çalışmaya başlamıştır.” Source: RevenueBase Database · checked Sep 28, 2026
13	Mittel Tozoğlu Ltd. ŞTI	Indirect evidence	Alavardı, TürkiyeHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “2005 Yılında Mühendislik Hizmetleri vermek üzere kurulan şirketimiz bugün 40 mühendisten oluşan güçlü teknik yapısı, 18 yıllık ulusal iş tecrübesi ve binlerle mutlu referansı ile…” Source: RevenueBase Database · checked Sep 28, 2026
14	Uskom Komunikasyon Sistemleri	Partial evidence	Ataşehir, TürkiyeHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “Uskom has emerged from the merger of former Leopar and Usluel Communication System Groups with the aim of becoming a reference integrator / contracting company for engineering…” Source: RevenueBase Database · checked Sep 28, 2026
15	Noven Energy	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial evidence “Noven Enerji ve Bilişim Teknojileri Sanayi ve Ticaret Ltd.Şti.” Source: RevenueBase Database · checked Sep 28, 2026
16	System Control	Partial evidence	İzmir, TürkiyeHQ checked Sep 28, 2026	11-50	21 contacts →
	Partial evidence “System Control müşterilerine bina otomasyon sistemleri (BMS) konusunda mühendislik hizmeti ve taahhüdünde bulunmak amacıyla 2017 yılında İzmir/ Türkiye ‘de kurulmuştur.” Source: RevenueBase Database · checked Sep 28, 2026
17	Pacpro Otomasyon	Indirect evidence	Tuzla, TürkiyeHQ checked Sep 28, 2026	51-200	21 contacts →
	Indirect evidence “Pacpro Otomasyon A.Ş.” Source: RevenueBase Database · checked Sep 28, 2026
18	Energy Pool Türkiye	Strong evidence	Besiktas, TürkiyeHQ checked Sep 28, 2026	11-50	19 contacts →
	Strong evidence “Smart Energy Manager of complex systems for energy market players.” Source: RevenueBase Database · checked Sep 28, 2026
19	Partner EGS	Strong evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	11-50	19 contacts →
	Strong evidence “Energy storage systems (ESS) and photovoltaic inverter (PV inverter) solutions.” Source: RevenueBase Database · checked Sep 28, 2026
20	Forsel Elektri̇k Enerji̇ A.Ş	Partial evidence	Maltepe, TürkiyeHQ checked Sep 28, 2026	501-1,000	19 contacts →
	Partial evidence “Elektrik Enerji Taahhüt” Source: RevenueBase Database · checked Sep 28, 2026
21	Atasayar Teknoloji	Indirect evidence	Düzce, TürkiyeHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “2005 yılından bu yana teknolojinin gelişim ve dönüşümüne paralel olarak müşterilerimizin ihtiyaçlarına uygun, yenilikçi, erişilebilir ve sürdürülebilir çözümler sunuyoruz.” Source: RevenueBase Database · checked Sep 28, 2026
22	Sunroof Enerji	Partial evidence	Sincan, TürkiyeHQ checked Sep 28, 2026	51-200	19 contacts →
	Partial evidence “SunRoof Enerji, yenilenebilir enerji ve enerji verimliliği alanlarında kurucularının uzun yıllardır sahip olduğu deneyimini yenilikçi bir yaklaşımla genişletilerek, enerji…” Source: RevenueBase Database · checked Sep 28, 2026
23	Eltes Elektrik İnş. Taah. San. VE Tic. A.Ş	Indirect evidence	Kayseri, TürkiyeHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Temelleri 1974 tarihine uzanan ELTES Elektrik, daha kurumsal bir yapı oluşturmak amacı ile 1992 yılında Anonim Şirket statüsüne geçmiş ve “ELTES Elektrik İnşaat Taah.” Source: RevenueBase Database · checked Sep 28, 2026
24	Rest Enerji	Partial evidence	Denizli, TürkiyeHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “REST Enerji olarak kökleri güçlü genç bir şirketiz.” Source: RevenueBase Database · checked Sep 28, 2026
25	Titan Building Technologies	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “Since 1987 Titan Intelligent Building Technologies, is a systems integrator and R&D engineering firm that specializes manufacturing, sales and services in the automation of…” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy systems integration firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names energy systems integration firms.
Partial evidence: Its own public description names part of energy systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy systems integration firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 574 energy systems integration firms based in Türkiye

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Energy systems integration firms based in Türkiye at a glance

As of Sep 28, 2026

15.0%Verified-email coverage

7.0Average contacts per company

1-10Median size (employees)

15.7%Largest-city concentration · Istanbul

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

288

11-50

211

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 574 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy systems integration firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Türkiye whose own description of what they do matches “energy systems integration firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy systems integration firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among energy systems integration firms, and records with no verified work email. Companies headquartered outside Türkiye are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 602 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Energy systems integration firms by metro

Energy systems integration firms in Istanbul90

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy systems integration firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many energy systems integration firms are there based in Türkiye?

RevenueBase identified 574 energy systems integration firms headquartered in Türkiye as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Kontek Enerji̇, headquartered in Izmir, tops this list with the largest team on record.

Which city has the most energy systems integration firms?

Istanbul leads with 90 headquartered companies, followed by Ankara (62) and Cankaya (34).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 602 verified decision-maker contacts tracked across these 574 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.