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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Turkish Airlinesturkishairlines.com
A leading airline offering unrivaled flight network, young fleet, and elevated travel experience, flying to over 340 destinations worldwide |
39,555 | |||
| 2 |
Anadolu Groupanadolugroup.com
A multinational group operating in 7 sectors, with partnerships with leading global brands, linking Anatolia to the world |
36,225 | |||
| 3 |
LC Waikikilcwaikiki.com
A Turkish brand offering quality, affordable fashion with over 1200 stores in 59 countries and a goal to be a top European retailer |
25,857 | |||
| 4 |
Sabanci Holdingsabanci.com
Conglomerate with diverse interests in banking, finance, energy, industrials, building materials, and retail, focusing on sustainability and global partnerships. |
22,437 | |||
| 5 |
Yıldız Holdingyildizholding.com.tr
A leading food and retail organization that satisfies consumers, customers, employees, and shareholders, while contributing to social development through various projects |
20,499 | |||
| 6 |
Yapı Krediyapikredi.com.tr
A leading financial institution in Turkey offering a wide range of banking and financial services to individuals, SMEs, and corporations |
16,484 | |||
| 7 |
Turkcellturkcell.com.tr
A converged telecommunication and technology services provider based in Turkey, offering voice, data, TV, and value-added services on mobile and fixed networks globally |
16,035 | |||
| 8 |
BİM Birleşik Mağazalar A.Şbim.com.tr
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 |
14,504 | |||
| 9 |
QNB Türkiyeqnb.com.tr
Established in 1987, the company is a leading bank in Turkey with innovative services like the first installment credit card and online banking platform |
13,575 | |||
| 10 |
VakıfBankvakifbank.com.tr
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 |
11,881 | |||
| 11 |
Trendyol Grouptrendyol.com
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 |
11,722 | |||
| 12 |
Arçelik Türkiyearcelikglobal.com
A global producer and marketer of consumer durables and electronics with manufacturing facilities in 7 countries, sales in 33 countries, and 30,000 employees |
11,670 | |||
| 13 |
Acibadem Healthcare Groupacibadem.com.tr
Leading healthcare services, hospitals, and clinics, providing diagnosis, treatment, and integrated medical solutions across multiple countries, including mobile healthcare and project management. |
9,234 | |||
| 14 |
Farmasifarmasi.com
An international beauty and personal care manufacturer with a wide range of products, including cosmetics, fragrances, personal care, wellness, and household items |
8,541 | |||
| 15 |
DeFactodefacto.com.tr
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 |
8,236 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Şişecamsisecam.com
Global player in glass and chemicals industry, operating in all core glass production areas, including flat glass, glassware, glass packaging, and glass fiber |
8,006 | |||
| 17 | 6,989 | ||||
| 18 |
Kuveyt Turk Participation Bankkuveytturk.com.tr
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 |
6,740 | |||
| 19 |
Celebi Aviationcelebiaviation.com
A global leader in airport services, specializing in ground handling, cargo, passenger services, airport management, and expanding into food and maritime sectors |
6,301 | |||
| 20 |
Ülkerulker.com.tr
A global brand offering a wide range of biscuit, cake, chocolate, confectionery, and gum products, with operations in over 100 countries |
6,162 | |||
| 21 |
TOFAStofas.com.tr
Turkish automotive company, R&D center, vehicle production for multiple brands, domestic market representation for various luxury automotive brands. |
5,996 | |||
| 22 |
Eczacıbaşı Topluluğueczacibasi.com.tr
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 |
5,960 | |||
| 23 |
FLO Groupflo.com.tr
Leading footwear retail company operating over 800 stores across 29 countries, offering multiple brands through physical and online channels. |
5,621 | |||
| 24 |
Istanbul Technical Universityitu.edu.tr
A state university in Turkey offering modern education facilities and international contacts to shape talented engineers and architects since 1773 |
5,598 | |||
| 25 | 5,321 | ||||
| 26 |
Abdi Ibrahim Pharmaceuticalsabdiibrahim.com.tr
Leader in Turkish pharmaceutical industry since 1912, with a large product portfolio, global presence, strong R&D focus, and commitment to sustainability |
5,174 | |||
| 27 |
Mavimavicompany.com
A global lifestyle brand specializing in premium denim products, with a focus on quality, sustainability, and customer satisfaction through tailored design |
5,114 | |||
| 28 |
ISS Türkiyetr.issworld.com
Provider of workplace experience and facility management solutions aiming to enhance business performance and make everyday life more productive and enjoyable |
4,718 | |||
| 29 |
Mercedes-Benz Türk A.Ş.mercedesbenzturk.com.tr
Manufacturing intercity and city buses, heavy-duty trucks, and tractor units. Conducting R&D for Daimler Truck AG's global development and production network. |
4,867 | |||
| 30 |
Yemeksepetiyemeksepeti.com
The company is Turkey's largest online food delivery platform, also offering online market services and a platform for food-related content and recipes |
4,667 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 1,393
- Manufacturers in Istanbul 249
- Retail chains in Istanbul 188
- Companies with in-house R&D in Istanbul 177
- Companies with a mobile app in Istanbul 163
- Corporate groups and holding companies in Istanbul 134
- Critical infrastructure operators in Istanbul 133
- E-commerce companies in Istanbul 93
- Education providers in Istanbul 93
- Financial services firms in Istanbul 81
- Hotel and hospitality groups in Istanbul 73
- Retail companies in Istanbul 71
- IT Services and IT Consulting companies in Istanbul 69
- Consumer goods companies in Istanbul 68
- Hardware manufacturers in Istanbul 66
- Energy companies in Istanbul 64
- Publicly traded companies in Istanbul 62
- Food and beverage companies in Istanbul 61
- Construction companies in Istanbul 59
- Food and Beverage Services companies in Istanbul 54
- Logistics companies in Istanbul 53
- IT services companies in Istanbul 50
- Financial Services companies in Istanbul 47
- Hospitals and Health Care companies in Istanbul 46