A.Overview
We are undoubtedly living in a time when global innovation, driven by technological advances, is surpassing even the forecasts. Against this backdrop, a startup ecosystem has emerged as a leading force in digitalization and technological transformation, with startups guiding not only economic growth but also regulatory frameworks.
While these new economic entities serve as engines of innovation, they also face complex legal risks during their formation and growth phases. Ignoring these risks may jeopardize the survival of a company with the potential of serious consequences and legal sanctions in terms of investor relations, brand value, data security, and regulatory compliance.
This article offers a comparative analysis of the key legal risks in the startup ecosystem, focusing on the legal systems of the U.S., the European Union (EU), and Türkiye. In this framework, the topics requiring close attention from both entrepreneurs and legal professionals include corporate structure, intellectual property, data protection regulations, investment processes, and sector-specific regulations.
B. Risks Related to Business Structure and Partnership Arrangements
Business structure and partnership arrangements represent a fundamental challenge in innovative processes. In order for a startup to gain legal recognition while sustaining its innovations, it must acquire a legal personality and capacity, i.e. have a formal “existence”, in accordance with the relevant legal system.
One of the most critical early-stage legal decisions for any startup is choosing the right business structure. For example, in the U.S., tech ventures aiming for rapid investment often prefer the “C-Corporation” model, particularly by incorporating in the state of Delaware. Although investors may prefer this model for legal certainty, they should adjust their tax regimes, bylaws, and governance structures based on it. Meanwhile, if not properly evaluated, the model may present practical risks, including double taxation and litigation procedures that vary by state.
A common mistake in both the U.S. and Türkiye is failing to conclude a written Founders’ Agreement. In the absence of a vesting schedule for equity distribution, a departing founder may retain a substantial shareholding, which poses a significant obstacle to future investments in the company.
In the EU, models like Germany’s GmbH (Limited Liability Company) or France’s Société par Actions Simplifiée – SAS (Simplified Joint-Stock Company) tend to impose stricter rules in shareholder agreements, thereby reducing the risk of disputes.
In Türkiye, entrepreneurs often opt for a Limited Liability Company structure at the outset. However, this model offers limited flexibility in later investment stages, resulting in challenges with respect to share transfers, board composition, and the adaptability of the company’s articles of association.
C. Legal Gaps in the Protection of Intellectual Property Rights
Intellectual property (IP) is one of the most critical assets that define a startup’s value, and yet many ventures fail to take the necessary steps to protect it.
- In the U.S., the “first to file” principle makes the timing of patent and trademark applications crucial. In addition, companies must execute an IP Assignment Agreement to secure ownership over software and designs created by employees. Otherwise, ownership may remain with the individual creator, posing a risk of losing significant rights in the future.
- In the European Union, protection mechanisms developed under the European Patent Convention require startups to present clear documentation of their IP during investment rounds. In countries like France and Germany and across Scandinavia, investors often consider the completion of registration processes as a precondition for funding.
- In Türkiye, many startups neglect to file trademark, software, or design protection applications. As a result, if a similar project is registered earlier by another party, the startup risks legal disputes and a significant loss of credibility in the eyes of investors. Ownership of IP is often left undefined even in projects supported by institutions like TÜBİTAK or KOSGEB.
D. Personal Data Protection and Data Security
Startups’ collection of data via digital platforms makes their processing and storage subject to data protection laws. In the U.S., data protection regulations vary by state. Notably, the California Consumer Privacy Act (CCPA) enhances consumer control over personal data. Startups processing health-related data must also comply with the Health Insurance Portability and Accountability Act (HIPAA), which imposes strict obligations.
In the EU, personal data protection is governed by the “General Data Protection Regulation” (GDPR), which came into effect in 2018. GDPR mandates explicit consent, data minimization, the right to be forgotten, and data breach notification. Violations can lead to substantial fines.
Türkiye has adopted a similar legal framework under Law No. 6698 on the Protection of Personal Data (KVKK), partly in alignment with GDPR. However, enforcement remains weak. Most startups either neglect or superficially fulfill key obligations such as “privacy notices”, obtaining “explicit consent”, and “registering with the Data Controllers Registry Information System” (VERBIS). This leads not only to administrative fines but also to reputational damage in the relevant sector.
E. Investment Processes and Contractual Structuring
Securing investment during growth and scaling phases has become a necessity for startups. However, this process often involves significant contractual risks. In the U.S., the Simple Agreement for Future Equity (SAFE) model is widely used by accelerators like Y Combinator. While the model allows companies to raise capital without immediate valuation, it can later lead to valuation disputes and power imbalances among shareholders.
In Türkiye, the SAFE model has yet to be clearly integrated into the legal framework. Under Turkish law, procedures related to capital increases, share transfers, and debt securities require formal notifications to notaries, trade registries, and tax offices, slowing down the investment process.
Moreover, investment agreements often include unilateral penalty clauses and governance rights in favor of investors, which can gradually erode the founding partners’ decision-making power over time.
F. Sector-Specific Regulations and Compliance Risks
A startup’s line of business directly shapes its regulatory obligations. The regulations change rapidly in fields such as Financial Technology (FinTech), Digital Health (E-Health), Artificial Intelligence (AI) and Crypto Assets, with these areas often operating in regulatory “grey zones.”
The EU has expanded platform liability through the Digital Markets Act and Digital Services Act. The European Commission is also introducing new concepts such as algorithmic collusion to strengthen competition law enforcement.
In Türkiye, while a clear legal infrastructure is lacking in these areas, certain obligations still arise under existing frameworks, such as MASAK (Financial Crimes Investigation Board) regulations, e-commerce rules, and consumer protection laws. However, unpredictability in enforcement makes it difficult for startups to build reliable and compliant growth strategies.
G. Decisions and Opinions of International Judicial Authorities on the Startup Ecosystem
The digitalization of entrepreneurial activity has brought fundamental human rights into focus, particularly in areas such as personal data protection, digital competition, freedom of expression, and economic liberty. In this context, the European Commission, the European Court of Human Rights (ECHR), and the Court of Justice of the European Union (CJEU) have issued decisions and opinions that significantly affect startup operations.
a) European Court of Justice (CJEU)
As the binding judicial authority of EU law, the CJEU has issued several landmark rulings with critical implications for startups, particularly under GDPR. Among these, the most notable is the judgment in case C-311/18, widely known as “Schrems II” .
This ruling invalidated the “Privacy Shield” framework that previously allowed transatlantic data transfers between the EU and the U.S., requiring all companies operating in Europe to comply with Standard Contractual Clauses (SCCs) when transferring data. This decision has had a direct impact on data-driven startups planning to expand internationally.
In another seminal case, Google Spain SL, Google Inc. v Agencia Española de Protección de Datos (AEPD), Mario Costeja González, the CJEU recognized the Right to Be Forgotten and imposed significant responsibilities on search engine operators. This ruling has made legal compliance a central concern in digital content management strategies for startups.
b) European Commission Opinion
The European Commission regularly publishes Public Consultations and Impact Assessments regarding regulations that directly affect startups. Through the Digital Markets Act and Digital Services Act, the Commission has imposed new obligations on platform-based startups related to algorithm transparency, content moderation, and user rights. While aiming to “protect competition and strengthen user rights,” the Commission has also introduced exemptions to ease the burden on smaller startups.
In addition, the Commission’s Artificial Intelligence Act (AI Act) introduces the concept of “high-risk AI systems” and imposes requirements such as conformity assessments, traceability, and ethical audits on developers of such systems. These rules have a direct bearing on the business activities of AI-based startups.
c) European Court of Human Rights (ECHR)
While the ECHR has not issued rulings specifically referencing the concept of startups, it has interpreted the right to engage in entrepreneurial activity under Protocol No. 1, Article 1 (Right to Property) and Article 10 (Freedom of Expression) of the European Convention on Human Rights (ECHR).
For instance, in Tre Traktörer AB v. Sweden (1989), the revocation of a restaurant’s license to serve alcohol was deemed a violation of the right to property. This case-law has prompted a discussion of whether the revocation of licenses for digital platform businesses violates fundamental rights.
Similarly, in Société Colas Est and Others v. France, the Court questioned the right of private companies to protect their trade secrets and the existence of reasonable oversight mechanisms in search and seizure operations. This judgment serves as a critical precedent in delineating the limits of government interference in entrepreneurial activity.
H. Conclusion
The development of the startup ecosystem depends not only on technological innovation but also on the legal compliance of these new technologies. The U.S. and the EU have systematically developed legal infrastructures for startups, enabling entrepreneurs to operate within a clear framework in areas such as corporate governance, intellectual property, data protection, and investment processes. In Türkiye, despite some improvements in these aspects, the lack of effective enforcement and the ambiguity of regulations continue to pose significant risks for entrepreneurs.
Early identification and management of legal risks are critical to ensuring the sustainability of a startup and maintaining investor confidence. In this regard, obtaining professional legal support, drafting contracts with precision, and regularly monitoring sector-specific regulations constitute the foundation of a successful startup journey.
Partner Av. Gülşah Güven, LL.M.













