# 30 leading multinational companies in Istanbul

Tamtam tracks 348 multinational companies headquartered in Istanbul. This list ranks the 30 largest by number of employees on LinkedIn, led by Turkish Airlines, Anadolu Group and LC Waikiki. Their median headcount is 8,236. Half of them were founded in 1985 or later.

These Istanbul-based multinational companies operate across diverse sectors, including retail, manufacturing, finance, and technology. Many are large groups with extensive operations, such as Turkish Airlines, a major airline, and Anadolu Group, a multinational conglomerate. LC Waikiki is a fashion retailer with a global presence, while Sabanci Holding has interests in banking, energy, and retail. Yıldız Holding focuses on food and retail, and Yapı Kredi is a prominent financial institution.

A notable pattern among these companies is their strong presence in consumer-facing industries. Retailers like BİM Birleşik Mağazalar A.Ş. and DeFacto, alongside e-commerce platform Trendyol Group, highlight a significant focus on serving consumer markets, both domestically and internationally.

🇹🇷 Istanbul · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Turkish Airlines](https://www.tamtam.ai/c/turkish-airlines) (turkishairlines.com)<br>A leading airline offering unrivaled flight network, young fleet, and elevated travel experience, flying to over 340 destinations worldwide | Airlines and Aviation | 🇹🇷 Istanbul | 39,555 |  |
| 2 | [Anadolu Group](https://www.tamtam.ai/c/anadolu-group) (anadolugroup.com)<br>A multinational group operating in 7 sectors, with partnerships with leading global brands, linking Anatolia to the world | Holding Companies | 🇹🇷 Istanbul | 36,225 |  |
| 3 | [LC Waikiki](https://www.tamtam.ai/c/lc-waikiki) (lcwaikiki.com)<br>A Turkish brand offering quality, affordable fashion with over 1200 stores in 59 countries and a goal to be a top European retailer | Retail | 🇹🇷 Istanbul | 25,857 | 1985 |
| 4 | [Sabanci Holding](https://www.tamtam.ai/c/sabanci-holding) (sabanci.com)<br>Conglomerate with diverse interests in banking, finance, energy, industrials, building materials, and retail, focusing on sustainability and global partnerships. | Investment Management | 🇹🇷 Istanbul | 22,437 |  |
| 5 | [Yıldız Holding](https://www.tamtam.ai/c/y-ld-z-holding) (yildizholding.com.tr)<br>A leading food and retail organization that satisfies consumers, customers, employees, and shareholders, while contributing to social development through various projects | Manufacturing | 🇹🇷 Istanbul | 20,499 |  |
| 6 | [Yapı Kredi](https://www.tamtam.ai/c/yap-kredi) (yapikredi.com.tr)<br>A leading financial institution in Turkey offering a wide range of banking and financial services to individuals, SMEs, and corporations | Banking | 🇹🇷 Istanbul | 16,484 |  |
| 7 | [Turkcell](https://www.tamtam.ai/c/turkcell) (turkcell.com.tr)<br>A converged telecommunication and technology services provider based in Turkey, offering voice, data, TV, and value-added services on mobile and fixed networks globally | Telecommunications | 🇹🇷 Istanbul | 16,035 |  |
| 8 | [BİM Birleşik Mağazalar A.Ş](https://www.tamtam.ai/c/bim-birlesik-magazalar-a-s) (bim.com.tr)<br>A leading retail company in Türkiye delivering affordable and high-quality basic food and consumer goods through a hard-discount model Providing employment to 85,000 people | Retail | 🇹🇷 Istanbul | 14,504 | 1995 |
| 9 | [QNB Türkiye](https://www.tamtam.ai/c/qnb-turkiye) (qnb.com.tr)<br>Established in 1987, the company is a leading bank in Turkey with innovative services like the first installment credit card and online banking platform | Banking | 🇹🇷 Istanbul | 13,575 |  |
| 10 | [VakıfBank](https://www.tamtam.ai/c/vak-fbank) (vakifbank.com.tr)<br>Established in 1954, the organization offers a wide range of modern banking products and services, specializing in corporate, commercial, and retail banking, along with investment banking and capital market activities | Banking | 🇹🇷 Istanbul | 11,881 | 1954 |
| 11 | [Trendyol Group](https://www.tamtam.ai/c/trendyol-group) (trendyol.com)<br>A highly successful e-commerce company backed by multiple investors, delivering millions of packages daily across 27 countries with a strong focus on technology and innovation | Technology, Information and Internet | 🇹🇷 Istanbul | 11,722 | 2010 |
| 12 | [Arçelik Türkiye](https://www.tamtam.ai/c/arcelik-turkiye) (arcelikglobal.com)<br>A global producer and marketer of consumer durables and electronics with manufacturing facilities in 7 countries, sales in 33 countries, and 30,000 employees | Manufacturing | 🇹🇷 Istanbul | 11,670 |  |
| 13 | [Acibadem Healthcare Group](https://www.tamtam.ai/c/acibadem-healthcare-group) (acibadem.com.tr)<br>Leading healthcare services, hospitals, and clinics, providing diagnosis, treatment, and integrated medical solutions across multiple countries, including mobile healthcare and project management. | Hospitals and Health Care | 🇹🇷 Istanbul | 9,234 | 1991 |
| 14 | [Farmasi](https://www.tamtam.ai/c/farmasi) (farmasi.com)<br>An international beauty and personal care manufacturer with a wide range of products, including cosmetics, fragrances, personal care, wellness, and household items | Personal Care Product Manufacturing | 🇹🇷 Istanbul | 8,541 | 1950 |
| 15 | [DeFacto](https://www.tamtam.ai/c/defacto) (defacto.com.tr)<br>Established in 2005, the company is a global fashion brand with over 500 stores and online operations serving millions of customers worldwide They focus on sustainable practices and technology innovation | Retail | 🇹🇷 Istanbul | 8,236 | 2004 |
| 16 | [Şişecam](https://www.tamtam.ai/c/sisecam) (sisecam.com)<br>Global player in glass and chemicals industry, operating in all core glass production areas, including flat glass, glassware, glass packaging, and glass fiber | Glass, Ceramics and Concrete Manufacturing | 🇹🇷 Istanbul | 8,006 | 1935 |
| 17 | [Hayat](https://www.tamtam.ai/c/hayat) (hayat.com)<br>A global leader in fast moving consumer goods, specializing in branded diapers, tissues, and personal care products Operating in 100 countries with 16 powerful brands | Manufacturing | 🇹🇷 Istanbul | 6,989 | 1987 |
| 18 | [Kuveyt Turk Participation Bank](https://www.tamtam.ai/c/kuveyt-turk-participation-bank) (kuveytturk.com.tr)<br>Specializing in interest-free finance with a customer-focused approach, innovative technology, and digital transformation Leading in asset size and Islamic banking, supporting mega projects and entrepreneurship | Banking | 🇹🇷 Istanbul | 6,740 | 1989 |
| 19 | [Celebi Aviation](https://www.tamtam.ai/c/celebi-aviation) (celebiaviation.com)<br>A global leader in airport services, specializing in ground handling, cargo, passenger services, airport management, and expanding into food and maritime sectors | Airlines and Aviation | 🇹🇷 Istanbul | 6,301 | 1958 |
| 20 | [Ülker](https://www.tamtam.ai/c/ulker) (ulker.com.tr)<br>A global brand offering a wide range of biscuit, cake, chocolate, confectionery, and gum products, with operations in over 100 countries | Food and Beverage Manufacturing | 🇹🇷 Istanbul | 6,162 | 1944 |
| 21 | [TOFAS](https://www.tamtam.ai/c/tofas) (tofas.com.tr)<br>Turkish automotive company, R&D center, vehicle production for multiple brands, domestic market representation for various luxury automotive brands. | Motor Vehicle Manufacturing | 🇹🇷 Istanbul | 5,996 | 1968 |
| 22 | [Eczacıbaşı Topluluğu](https://www.tamtam.ai/c/eczac-bas-toplulugu) (eczacibasi.com.tr)<br>Founded in 1942, the group operates in various industries such as bathroom, ceramics, consumer products, health, finance, and technology, contributing to societal development and sustainability | Manufacturing | 🇹🇷 Istanbul | 5,960 |  |
| 23 | [FLO Group](https://www.tamtam.ai/c/flo-group) (flo.com.tr)<br>Leading footwear retail company operating over 800 stores across 29 countries, offering multiple brands through physical and online channels. | Retail | 🇹🇷 Istanbul | 5,621 |  |
| 24 | [Istanbul Technical University](https://www.tamtam.ai/c/istanbul-technical-university) (itu.edu.tr)<br>A state university in Turkey offering modern education facilities and international contacts to shape talented engineers and architects since 1773 | Higher Education | 🇹🇷 Istanbul | 5,598 | 1773 |
| 25 | [Koton](https://www.tamtam.ai/c/koton) (koton.com)<br>Global fashion retailer with over 450 stores, 8,000 employees in 28 countries Focus on career growth, diversity, sustainability Continuous learning and development opportunities | Retail | 🇹🇷 Istanbul | 5,321 | 1988 |
| 26 | [Abdi Ibrahim Pharmaceuticals](https://www.tamtam.ai/c/abdi-ibrahim-pharmaceuticals) (abdiibrahim.com.tr)<br>Leader in Turkish pharmaceutical industry since 1912, with a large product portfolio, global presence, strong R&D focus, and commitment to sustainability | Pharmaceutical Manufacturing | 🇹🇷 Istanbul | 5,174 | 1912 |
| 27 | [Mavi](https://www.tamtam.ai/c/mavi) (mavicompany.com)<br>A global lifestyle brand specializing in premium denim products, with a focus on quality, sustainability, and customer satisfaction through tailored design | Retail Apparel and Fashion | 🇹🇷 Istanbul | 5,114 | 1991 |
| 28 | [ISS Türkiye](https://www.tamtam.ai/c/iss-turkiye) (tr.issworld.com)<br>Provider of workplace experience and facility management solutions aiming to enhance business performance and make everyday life more productive and enjoyable | Facilities Services | 🇹🇷 Istanbul | 4,718 | 1901 |
| 29 | [Mercedes-Benz Türk A.Ş.](https://www.tamtam.ai/c/mercedes-benz-turk-a-s) (mercedesbenzturk.com.tr)<br>Manufacturing intercity and city buses, heavy-duty trucks, and tractor units. Conducting R&D for Daimler Truck AG's global development and production network. | Motor Vehicle Manufacturing | 🇹🇷 Istanbul | 4,867 | 1967 |
| 30 | [Yemeksepeti](https://www.tamtam.ai/c/yemeksepeti) (yemeksepeti.com)<br>The company is Turkey's largest online food delivery platform, also offering online market services and a platform for food-related content and recipes | Technology, Information and Internet | 🇹🇷 Istanbul | 4,667 | 2001 |

## How this list is built

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 Nov 11, 2026.

## More company lists in Istanbul

- [The largest companies in Istanbul](https://www.tamtam.ai/l/largest-companies-istanbul) (1,393)
- [Manufacturers in Istanbul](https://www.tamtam.ai/l/manufacturers-istanbul) (249)
- [Retail chains in Istanbul](https://www.tamtam.ai/l/retail-chains-istanbul) (188)
- [Companies with in-house R&D in Istanbul](https://www.tamtam.ai/l/r-and-d-companies-istanbul) (177)
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- [Critical infrastructure operators in Istanbul](https://www.tamtam.ai/l/critical-infrastructure-operators-istanbul) (133)
- [E-commerce companies in Istanbul](https://www.tamtam.ai/l/ecommerce-companies-istanbul) (93)
- [Education providers in Istanbul](https://www.tamtam.ai/l/education-companies-istanbul) (93)
- [Financial services firms in Istanbul](https://www.tamtam.ai/l/financial-services-firms-istanbul) (81)
- [Hotel and hospitality groups in Istanbul](https://www.tamtam.ai/l/hospitality-groups-istanbul) (73)
- [Retail companies in Istanbul](https://www.tamtam.ai/l/retail-companies-istanbul) (71)
- [IT Services and IT Consulting companies in Istanbul](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-istanbul) (69)
- [Consumer goods companies in Istanbul](https://www.tamtam.ai/l/consumer-goods-companies-istanbul) (68)
- [Hardware manufacturers in Istanbul](https://www.tamtam.ai/l/hardware-companies-istanbul) (66)
- [Energy companies in Istanbul](https://www.tamtam.ai/l/energy-companies-istanbul) (64)
- [Publicly traded companies in Istanbul](https://www.tamtam.ai/l/publicly-traded-companies-istanbul) (62)
- [Food and beverage companies in Istanbul](https://www.tamtam.ai/l/food-and-beverage-companies-istanbul) (61)
- [Construction companies in Istanbul](https://www.tamtam.ai/l/construction-companies-istanbul) (59)
- [Food and Beverage Services companies in Istanbul](https://www.tamtam.ai/l/food-and-beverage-services-companies-istanbul) (54)
- [Logistics companies in Istanbul](https://www.tamtam.ai/l/logistics-companies-istanbul) (53)
- [IT services companies in Istanbul](https://www.tamtam.ai/l/it-services-companies-istanbul) (50)
- [Financial Services companies in Istanbul](https://www.tamtam.ai/l/financial-services-companies-istanbul) (47)
- [Hospitals and Health Care companies in Istanbul](https://www.tamtam.ai/l/hospitals-and-health-care-companies-istanbul) (46)

## The same list elsewhere in Turkey

- [Multinational companies in Turkey](https://www.tamtam.ai/l/multinational-companies-turkey) (790)
- [Multinational companies in Ankara](https://www.tamtam.ai/l/multinational-companies-ankara) (57)
- [Multinational companies in Izmir](https://www.tamtam.ai/l/multinational-companies-izmir) (26)

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Source: https://www.tamtam.ai/l/multinational-companies-istanbul