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E-Commerce

Strong Platform Dependence Shapes Turkey’s E-Commerce Market

Turkey’s e-commerce sector is witnessing significant growth, yet a striking feature of the market is the heavy reliance of sellers on a few dominant platforms.

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September 18, 2025

Turkey’s e-commerce sector is witnessing significant growth, yet a striking feature of the market is the heavy reliance of sellers on a few dominant platforms. Online merchants often operate exclusively on one marketplace, leaving them highly dependent on platform algorithms, pricing policies, and terms of service. Trendyol and Hepsiburada, two of Turkey’s leading e-commerce platforms, exert a particularly strong influence on the market (Ecommerce News Europe).

E-Commerce Growth in Turkey

In 2023, total e-commerce spending in Turkey surged by 62% in local currency terms. While much of this growth reflects inflationary pressures, in euro terms, the market grew by approximately 16%, reaching a total of €61.5 billion (around $89.6 billion). The number of online transactions also rose significantly, totaling roughly six billion purchases throughout the year (Ecommerce News Europe).

This growth highlights the increasing importance of online retail in the Turkish economy. As consumers continue to embrace digital shopping, sellers are facing both opportunities and challenges, especially in terms of competition and dependency on major platforms.

Geographic Concentration: Istanbul’s Dominance

Despite the sector’s overall expansion, e-commerce activity remains highly concentrated in Istanbul. The city accounts for nearly 63.3% of online retail spending in Turkey, with about 93% of Istanbul residents engaging in e-commerce. By contrast, online shopping penetration in other provinces remains below 30%, illustrating significant regional disparities (Ecommerce News Europe).

This geographic concentration has several implications. Businesses located outside Istanbul face challenges in reaching a large online consumer base, which may limit their growth potential. For marketplaces, focusing resources on Istanbul ensures high engagement but reinforces regional imbalances in access to e-commerce opportunities.

Platform Dependence and Its Implications

One of the most critical issues in Turkey’s e-commerce landscape is platform dependence. Data indicates that 78% of platform sellers operate exclusively on a single marketplace. This means that most small and medium-sized sellers rely heavily on a single set of algorithms, advertising tools, and policy frameworks.

While this strategy allows merchants to focus on familiar systems and maximize efficiency on one platform, it exposes them to considerable risk. Any changes in the platform’s algorithms, fees, or policies can significantly affect their sales performance and overall business stability (Ecommerce News Europe).

Trendyol: The Dominant Player

Trendyol stands out as the undisputed leader in the Turkish e-commerce sector. Headquartered in Istanbul and largely owned by China’s Alibaba Group, Trendyol continues to expand its influence both domestically and internationally. In 2022, the company launched services targeting customers in Germany and has gradually extended its reach into other European countries (Ecommerce News Europe).

Trendyol’s dominance is evident in both its extensive product range and its high traffic levels. Its position has a direct impact on sellers, who often prioritize Trendyol over other marketplaces due to its large customer base. However, this concentration of power also raises concerns about market competition and the bargaining power of small merchants.

Hepsiburada and Market Competition

Hepsiburada, another major player, maintains a strong presence in Turkey’s e-commerce ecosystem. While it does not match Trendyol’s scale, it continues to attract sellers looking for alternatives and diversified sales channels. Despite this, the high market concentration means that many sellers still face significant reliance on one dominant platform, limiting their flexibility and increasing vulnerability to policy changes or algorithm adjustments.

Risks for Sellers and Entrepreneurs

The heavy platform dependence presents several risks. Sellers may experience abrupt declines in visibility or traffic due to algorithm updates. Additionally, platform fee changes or shifts in advertising costs can dramatically alter profit margins. For startups and smaller enterprises, these factors can be particularly challenging, as they often lack the resources to diversify across multiple platforms.

To mitigate these risks, industry experts recommend that sellers adopt a multi-channel approach. Expanding presence across different marketplaces, social media, and direct-to-consumer channels can help reduce vulnerability and provide greater control over sales performance.

Opportunities Amid Platform Dependence

Despite the risks, the strong platform ecosystem offers opportunities for growth and development. High traffic platforms provide sellers with access to a large, ready-made customer base, allowing for faster revenue generation. Moreover, the platforms offer tools for marketing, analytics, and logistics, which can support small businesses in managing operations more efficiently.

Sellers can leverage platform data to optimize product listings, pricing strategies, and advertising campaigns. By using analytics tools, they can identify trends, adjust inventory, and target specific customer segments effectively. These capabilities, however, are largely dependent on the sellers’ familiarity with the platform’s features and tools (Ecommerce News Europe).

Regional Implications and Digital Transformation

The concentration of e-commerce activity in Istanbul, coupled with platform dependence, underscores the need for a more balanced digital transformation across Turkey. Expanding digital literacy, internet infrastructure, and e-commerce adoption in other regions can help reduce disparities and create more equitable opportunities for sellers nationwide.

Furthermore, government initiatives aimed at supporting SMEs and promoting e-commerce growth could play a key role in diversifying market access and reducing reliance on dominant platforms. By providing incentives, technical support, and training, authorities can empower entrepreneurs to explore multi-channel sales strategies.

Conclusion

Turkey’s e-commerce market is growing rapidly, driven by increasing consumer demand and technological adoption. However, the heavy dependence of sellers on a few dominant platforms, particularly Trendyol and Hepsiburada, presents both challenges and opportunities. Sellers face risks related to algorithm changes, fee adjustments, and market concentration, but they also gain access to large customer bases and platform tools.

The future of Turkish e-commerce will likely involve strategies to balance platform reliance with multi-channel expansion, regional digital development, and stronger support for SMEs. As the sector matures, addressing platform dependence and promoting market diversification will be critical to sustaining growth and ensuring a competitive, inclusive e-commerce ecosystem (Ecommerce News Europe).