| # | Company | Employees |
|---|---|---|
| 1 |
Koç Holdingkoc.com.tr
Leading Turkish investment holding group with strong presence in energy, automotive, consumer durables, and finance sectors, ranked in Fortune Global 500 |
69,971 |
| 2 |
Anadolu Groupanadolugroup.com
A multinational group operating in 7 sectors, with partnerships with leading global brands, linking Anatolia to the world |
34,888 |
| 3 |
RÖNESANS HOLDİNGronesans.com
A multinational conglomerate based in Ankara, specializing in construction, real estate, healthcare, and energy projects across Europe, Asia, and Africa |
7,087 |
| 4 |
Kazancı Holding A.Ş.kazanciholding.com.tr
A diversified group involved in energy production, distribution, and sales, as well as agriculture and tourism, contributing significantly to the economy |
4,592 |
| 5 |
Borusan Holdingborusan.com
Leading industrial conglomerate in steel, energy, logistics, distributorship, automotive, manufacturing, engineering, with focus on innovation and social responsibility. |
4,560 |
| 6 |
Yapı Merkezi Holdingyapimerkezi.com.tr
An organization focused on creating and realizing construction projects globally with a commitment to quality, innovation, beauty, and respect for communities |
4,231 |
| 7 |
Fiba Groupfibagroup.com
A diversified group investing in finance, energy, retail, tourism, and real estate sectors, committed to creating social impact and supporting education projects |
4,003 |
| 8 |
Akkök Holdingakkok.com.tr
Established in 1952, a leading organization in the fields of chemicals, energy, and real estate, with a focus on global competition and achieving world-class standards |
3,692 |
| 9 |
NUROL HOLDİNG A.Ş.nurol.com.tr
A family-founded business with a focus on construction and contracting, with over 40 establishments worldwide and a commitment to high-quality products and services |
3,502 |
| 10 |
Sanko Holdingsanko.com.tr
A longstanding industrial leader in Turkey, specializing in textiles, renewable energy, cement, and packaging production Committed to social development and global presence |
3,248 |
| 11 |
Limak Group of Companieslimak.com.tr
A diversified group involved in various sectors including construction, tourism, cement, energy, aviation, and food with a focus on social investments |
2,869 |
| 12 |
Petrol Ofisipetrolofisi.com.tr
A leading provider of fuel, lubricants, and chemicals in Turkey, with a strong infrastructure including fuel stations, terminals, and storage capacity |
2,733 |
| 13 |
Yıldızlar Yatırım Holdingyildiz.com
Operating across eight sectors with over 5,000 employees and stakeholders, contributing significantly to the national economy. |
2,043 |
| 14 |
Özdilek Holdingozdilekholding.com.tr
A leading organization with over 50 years of experience, specialized in home textiles production, retail, entertainment, energy, e-commerce, food, construction, and more |
1,972 |
| 15 |
Norm Holdingnormholding.com
Established in 1973, the company began producing bolts with a strong commitment to innovation and quality, evolving into a leading partner for industrial solutions |
1,783 |
| 16 |
Tosyalı Holdingtosyaliholding.com.tr
A leading private sector investor in the iron and steel industry with 18 facilities across 3 continents, offering unique career opportunities in a supportive, innovative, and collaborative work environment |
1,691 |
| 17 |
Cengiz Holdingcengizholding.com.tr
Major player in highly competitive industries, specializing in infrastructure projects, energy, mining, power generation, and metal manufacturing with significant investments and annual revenue exceeding USD 5 billion |
1,441 |
| 18 |
CCN Holdingccnholding.com
A construction company established through a partnership, known for prestigious projects in Azerbaijan and Turkey, including healthcare and tourism facilities Operations in Azerbaijan, Turkey, K Iraq, Libya |
1,357 |
| 19 |
Fernasfernas.com.tr
Founded in 1982, this construction firm has completed various projects internationally, including industrial plants, pipelines, dams, and infrastructure construction |
1,255 |
| 20 |
Bakioğlu Holdingbakioglu.com.tr
A leading group in flexible packaging and other sectors, focusing on sustainability, innovation, and contributing value to Turkey and beyond |
1,035 |
| 21 |
Gürok Grupgurok.com
A family-owned group with diverse sectors including tableware glass, roofing, tourism, and construction, leading with innovative products and services |
985 |
| 22 |
Pak Grouppakgroup.com
A leading organization operating in food, packaging, feed, and real estate sectors, focused on sustainable and quality production for a better future |
857 |
| 23 |
Özak Global Holdingozakglobal.com
A diversified group operating in sectors including textiles, real estate, construction, tourism, and facility management with a focus on innovation and global standards |
758 |
| 24 |
Eren Holdingerenholding.com.tr
A diversified business group with interests in textiles, energy, paper, packaging, retail, cement, and tourism, aiming for growth through strategic investments |
691 |
| 25 |
Calik Holdingcalik.com
A multinational group operating in various sectors such as energy, construction, mining, finance, and telecommunications across 28 countries, focusing on sustainability and innovation |
656 |
| 26 |
Alarko Holdingalarko.com.tr
A diversified organization with 25 subsidiaries, 8,000 employees, and a strong presence in industries such as construction, energy, tourism, and real estate development |
656 |
| 27 |
KAYA HOLDING INC.kayaholding.com.tr
Operating in multiple sectors with 8 subsidiaries and over 4,000 employees, dedicated to guest satisfaction, growth, and international expansion |
575 |
| 28 |
Polimekspolimeks.com
A leading international entity investing in tourism, sustainable energy, real estate, and contemporary art while emphasizing environmental and social responsibility |
562 |
| 29 |
Polat Holdingpolat.com
With over 65 years of experience in various sectors, we continue to develop real estate, energy, and technology investments while emphasizing excellence and diversity in our workforce |
507 |
| 30 |
Pasifik Holdingpasifik.com
A diversified group with expertise in real estate, construction, logistics, international trade, manufacturing, and technology, creating value, supporting exports, and fostering economic development |
484 |
| 31 | 450 | |
| 32 |
Koray Groupkoray.com
A leading construction firm with extensive experience in prestigious building projects, offering services from architectural design to turnkey construction of various structures |
384 |
| 33 |
ODAŞodas.com.tr
The company group specializes in energy and mining, with a focus on electricity production, natural gas production, and mineral extraction and trading They have successfully completed projects and expanded internationally |
374 |
| 34 |
Erciyes Anadolu Holdingerciyesanadolu.com
A diversified holding with 30 subsidiaries in sectors such as furniture, textiles, energy, and more Leading national and international growth with strong brands |
345 |
| 35 |
Harput Holdingharputholding.com.tr
Utilizing experience in textiles, the company now plays a significant role in sectors such as chemicals, food, insurance, construction, and energy |
321 |
| 36 |
Hattat Holding A.Ş.hattat.com.tr
Engineering and manufacturing supplier of hydraulic gear pumps, control valves, powertrain components for defense, automotive, agricultural, and construction equipment OEMs |
315 |
| 37 |
United Groupunitedgroup.com.tr
A diversified group providing integrated facility management, security, professional cleaning, construction, automotive, and technology services focusing on customer-centered sustainable growth |
187 |
| 38 |
Kiler Holdingkilerholding.com
With 22 subsidiaries and over 5000 employees, this holding operates in 4 main sectors and aims to invest in food, tourism, and healthcare for continued growth |
183 |
| 39 |
Demirören Yatırım Holdingdemiroren.com.tr
The organization has been providing services in Turkey for 57 years, focusing on LPG distribution, industrial production, social programs, and education services with a strong reputation and global presence |
176 |
| 40 |
SAYA HOLDINGsayaholding.com
A family-owned business group focused on pharmaceutical distribution, R&D, employment, and exports, with a strong emphasis on social responsibility projects |
173 |
| 41 |
Erdemoğlu Holdingerdemoglu.com.tr
With roots dating back to 1970, the family-owned business has evolved into a leading entity in the textile industry, specializing in carpets, furniture, and yarn |
172 |
| 42 |
Arıkanlı Holdingarikanliholding.com
A prominent corporation in Turkey with diverse operations in education, transportation, media, and industry & construction, striving for professionalism, quality, and customer satisfaction |
161 |
| 43 |
Can Holdingcanholding.com.tr
A growing organization with diverse operations in energy, industry, tourism, electronics, logistics, health, and education across Turkey's 81 cities Employs over 15,000 individuals |
160 |
| 44 |
Zeren Groupzerengroup.com
Operating in 7 sectors across 6 countries, the group prioritizes societal and environmental contribution, while investing globally and valuing employees and partners |
159 |
| 45 |
Özak GYOozakgyo.com
A portfolio management company focused on real estate investments, specializing in land development, project development, and high-return real estate projects |
157 |
| 46 |
Meteor Groupmeteorgrup.com.tr
Diversified group operating in fuel, construction, industry, energy, agriculture, tourism, and culture sectors; acquired world-leading brand producing elevators, escalators, and walkways in 2022 |
157 |
| 47 |
Altunkaya Group Globalaltunkaya.com
A diverse business enterprise based in Gaziantep, representing Turkey in various fields in foreign markets with over 10 brands since 1980 |
148 |
| 48 |
MB Holdingmb.com.tr
A pioneer in construction, textile, energy, ready-mixed concrete, perlite, and greenhouse industries, focusing on innovation and environmentally friendly production |
146 |
| 49 |
SEBA Başaran Kurumsalsebabasaran.com
The company started as a spare parts and truck transportation business in 1975, expanding into automotive sales and services, tourism, and agriculture |
18 |
| 50 |
GROUPE JAMBON
A financial services company located in France, specializing in a range of financial solutions for individuals and businesses |
6 |
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 9, 2026.
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