Competition Law in Switzerland

A multinational entering Switzerland through an acquisition discovers, weeks after closing, that the deal triggered mandatory merger notification thresholds – thresholds that were missed because the legal team applied EU rules rather than Swiss ones. The consequences range from administrative fines to transaction unwinding. Switzerland's competition law system is distinct from EU competition law in architecture, thresholds, and enforcement culture, and the gap between the two regimes catches international businesses with regularity.

Competition law in Switzerland is governed by dedicated competition legislation administered by the Wettbewerbskommission (Swiss Competition Commission, COMCO). Businesses with operations or market presence in Switzerland must comply with rules on cartels, market dominance, and merger control, each carrying distinct notification obligations and enforcement timelines. Infringements can result in direct sanctions, while merger clearance procedures operate under strict statutory deadlines.

This page sets out the key instruments of Swiss competition law, the procedures and timelines that international clients must plan for, the most common pitfalls encountered by businesses unfamiliar with the Swiss system. Cross-border considerations for groups with EU and Portuguese operations. Additionally, a self-assessment checklist for determining when specialist legal support is required.

The Swiss competition law regime and its regulatory foundations

Switzerland operates a distinct competition law system outside the EU legal order. Its competition legislation – the Kartellgesetz (Cartel Act) – covers three core areas: agreements restricting competition, abuse of market dominance, and merger control. The Wettbewerbskommission (COMCO) is the primary enforcement body, operating as an independent administrative authority. Its secretariat conducts investigations, while the commission itself issues decisions subject to appeal before the Bundesverwaltungsgericht (Federal Administrative Court) and ultimately the Bundesgericht (Federal Supreme Court of Switzerland).

Swiss competition legislation does not replicate EU competition law. Certain conduct treated as a per se infringement under EU rules may be assessed under a rule-of-reason analysis in Switzerland. Conversely, Swiss law contains specific provisions on vertical price restrictions and impediments to market access that extend beyond standard EU concepts. Practitioners advising international clients must assess both systems independently rather than assuming alignment.

The Swiss Code of Obligations intersects with competition law in contract drafting. Non-compete clauses in commercial agreements, for example, must satisfy both contractual validity requirements under civil legislation and competition law tests on market restriction. A clause valid under one body of law may be void under the other. This dual-layer review is non-negotiable for any agreement with market-partitioning effects in Switzerland.

Business structures matter for enforcement purposes. Whether a Swiss entity is incorporated as an AG (Aktiengesellschaft – Swiss stock corporation) or a GmbH (Gesellschaft mit beschränkter Haftung – Swiss limited liability company), its activities are equally subject to competition legislation. Registration in the Handelsregister Schweiz (Swiss Commercial Register) does not affect substantive competition law exposure. Foreign companies with significant Swiss turnover or market effect are also subject to jurisdiction even without a registered Swiss entity.

Key instruments: cartels, market dominance, and merger control

Swiss competition law provides three principal enforcement instruments. Each involves different triggers, procedures, and risk profiles for international businesses.

Cartel prohibition covers agreements between competing undertakings that significantly restrict competition. COMCO investigates both horizontal agreements – price-fixing, market allocation, bid-rigging – and vertical agreements that foreclose market access. The threshold for intervention is whether competition is "significantly impeded." Unlike EU law, which applies a more structured block exemption system, Swiss law relies more heavily on case-by-case assessment. International businesses operating distribution networks in Switzerland must review both horizontal coordination with competitors and vertical arrangements with distributors for compliance exposure.

In practice, bid-rigging in public procurement is a consistent enforcement priority for COMCO. Construction, engineering, and services sectors have seen sustained investigation activity. A business submitting tenders in Switzerland – whether through an AG or a foreign branch – should treat procurement-related communications with competitors as high-risk. Even indirect coordination, such as through trade association activities, can constitute a cartel.

Abuse of market dominance applies to undertakings that hold a dominant position in a Swiss market and engage in conduct that restricts competition. Dominance is assessed by reference to market share, barriers to entry, and buyer power. Abusive conduct includes excessive pricing, tying and bundling, refusal to supply, and discriminatory treatment of trading partners. Swiss law also contains specific provisions on relative market power – meaning that even a non-dominant supplier can face liability if it exerts illegitimate pressure on dependent customers or competitors. This concept of relative dependence is not present in EU competition law and regularly surprises clients trained in the EU system.

Merger control is mandatory where parties meet the Swiss turnover thresholds set out in competition legislation. Transactions meeting the thresholds must be notified to COMCO before implementation. The review process involves a Phase I review – in principle concluded within one month – and, where competition concerns arise, a Phase II in-depth investigation that can extend to several months. Implementation before clearance – or without notification – constitutes a standalone infringement regardless of whether the transaction itself raises substantive competition concerns. For cross-border groups, the interaction between Swiss merger control and the EU Merger Regulation must be assessed transaction by transaction. the two systems operate independently. Additionally. Clearance in one jurisdiction does not substitute for notification in the other.

For a tailored strategy on merger notification and clearance in Switzerland, reach out to info@ferrazwhitmore.com.

Practical pitfalls for international clients

International businesses entering or expanding in Switzerland encounter a consistent set of avoidable errors. The most consequential concern merger thresholds, leniency timing, and dominance self-assessment.

The Swiss merger notification thresholds are calculated by reference to global combined turnover and Swiss domestic turnover. Clients accustomed to EU thresholds – which are set at materially different levels – routinely miscalculate Swiss exposure. The error is compounded where a transaction involves a Swiss target with modest domestic turnover but where the acquiring group has substantial Swiss-wide revenues across multiple subsidiaries. In such cases, aggregation rules under competition legislation bring the transaction within scope despite an apparently small Swiss nexus. Missing the notification obligation is not a technical misstep; it is a substantive infringement attracting direct sanction.

The Swiss leniency programme (Bonusregelung) allows cartel participants to obtain full immunity or significant reduction of fines in exchange for cooperation with COMCO. Timing is decisive. Full immunity is available only to the first participant to come forward before COMCO opens an investigation. Once an investigation is opened, the immunity window closes and only partial reductions are available. Businesses that become aware of possible cartel involvement – through internal audit, whistleblower reports, or discovery in litigation – should treat the leniency decision as time-critical. A delay of days can reduce available protection from full immunity to a partial reduction. Legal advice must be sought before any approach to COMCO, because self-incriminating disclosure without proper preparation can undermine the legal position.

Dominance self-assessment is another persistent gap. Companies with high market shares in niche Swiss markets sometimes assume that their global footprint or competitive pressure from foreign suppliers eliminates dominance risk. Swiss competition law does not operate that way. Market definition is conducted by reference to the relevant geographic and product market in Switzerland. A company dominant in a narrowly defined Swiss market – a regional distribution channel, a specialist technical product category – faces full dominance scrutiny regardless of its position elsewhere. Pricing, supply, and contractual policies must be assessed against this Swiss-specific standard, not by reference to the company's global competitive position.

A further non-obvious risk arises in joint ventures. Many international groups structure Swiss market entry through a joint venture between an existing Swiss entity and a foreign parent. Where the joint venture is "full-function" – meaning it operates autonomously on the market on a lasting basis – it may constitute a concentration subject to merger notification. The structural form of the arrangement, rather than its commercial label, determines the competition law treatment.

For dispute resolution arising from competition investigations, our team advising on corporate disputes in Switzerland works alongside competition counsel to coordinate litigation strategy where enforcement actions intersect with commercial claims.

Cross-border considerations: EU, Portugal, and international dimensions

Switzerland's bilateral agreements with the EU create a degree of market integration, but they do not produce competition law alignment. There is no general equivalence between Swiss competition legislation and EU competition rules. A business compliant in the EU cannot assume Swiss compliance without a separate analysis.

Cartel investigations provide the clearest illustration. COMCO coordinates with the European Commission and national competition authorities through informal channels, but the legal frameworks remain independent. A business subject to EU cartel proceedings may find that the same conduct triggers a separate COMCO investigation under Swiss law. Settlement or leniency in the EU does not automatically carry over to the Swiss procedure. Companies facing parallel investigations must manage each process on its own terms, with separate leniency filings, separate cooperation assessments, and separate procedural timelines.

For groups with operations in both Switzerland and Portugal, the interaction between Swiss competition legislation and EU competition law – which applies to Portugal as an EU member state – requires coordinated management. A distribution agreement that benefits from an EU block exemption may still require assessment under Swiss competition law. Portuguese subsidiaries or holding entities operating through Swiss structures for supply chain or pricing purposes can inadvertently create competition risk in both jurisdictions simultaneously. The structural feature most likely to trigger this dual exposure is a hub-and-spoke arrangement where a Swiss entity coordinates pricing or market allocation across EU and Swiss subsidiaries.

The EU's increasing willingness to assert jurisdiction over conduct affecting EU markets – even where the parties are headquartered outside the EU – also affects Swiss businesses. A Swiss dominant company supplying EU markets, including through Portuguese distributors, may face scrutiny from European competition authorities for conduct that is perfectly lawful under Swiss law. The reverse is also true: Swiss competition rules on relative market power and impediment to market access may reach conduct that the EU system does not address. Managing this asymmetry requires legal advice that spans both legal traditions.

Our analysis of competition law in Portugal provides a detailed treatment of the Portuguese regime and EU competition law as it applies to businesses operating across the Iberian market.

For groups considering Swiss market entry, company formation structures and their competition law implications are addressed in our guide to company formation in Switzerland.

To explore how Swiss competition law affects your group's cross-border operations, schedule a consultation with our team at info@ferrazwhitmore.com.

Self-assessment checklist for Swiss competition law exposure

Swiss competition law obligations arise from the nature of a business's market activity, not from its legal form or place of registration. The following checklist identifies the primary triggers for competition law exposure and the conditions under which specialist legal support is required.

Merger control applies if:

• The combined global turnover of all parties exceeds the statutory threshold set in competition legislation.
• At least two of the parties individually exceed the Swiss domestic turnover threshold in the preceding financial year.
• The transaction constitutes a concentration – including full-function joint ventures – rather than a purely contractual commercial arrangement.
• The transaction involves a Swiss target, or a foreign target with Swiss turnover above threshold, and an acquiring group with significant Swiss revenues.

Cartel risk is elevated if:

• The business participates in trade association meetings where pricing, market allocation, or capacity is discussed.
• Distribution agreements contain resale price restrictions, exclusive territories, or non-compete obligations extending beyond standard commercial terms.
• The business submits tenders in Swiss public procurement and has contact with competing tenderers before submission.
• Internal communications reference competitor pricing, customer allocation, or market behaviour in a coordinated manner.

Dominance review is required if:

• The business holds a high market share in any defined Swiss product or regional market.
• Customers or suppliers are dependent on the business as a sole or primary source of supply or distribution.
• The business applies differentiated pricing, access conditions, or supply terms across comparable customers without objective justification.

Before initiating any COMCO process, verify:

• Whether leniency eligibility exists and whether another participant may already be approaching COMCO.
• Whether parallel EU or national competition authority proceedings are active or foreseeable.
• Whether internal communications require review and privilege protection before any regulatory engagement.
• Whether the corporate structure – AG, GmbH, branch, or joint venture – affects the scope of the competition law obligation.

Businesses uncertain about any of these factors should obtain specialist advice before taking any steps that could constitute notification, cooperation, or disclosure to a competition authority. Premature or uncoordinated engagement with COMCO can prejudice the legal position in ways that are difficult to reverse.

Frequently asked questions

How long does Swiss merger clearance take, and can we close before receiving approval?

Phase I review is conducted within approximately one month of a complete notification filing. If COMCO opens Phase II proceedings, the review extends significantly – typically several months – depending on the complexity of the competition concerns identified. Closing before clearance is a standalone infringement under Swiss competition legislation, regardless of whether the transaction itself raises substantive concerns. International clients should build notification timelines into transaction timetables from the outset.

Does EU cartel leniency protection extend to Switzerland?

No. A common misconception is that EU leniency filings provide protection in Switzerland. The Swiss leniency programme operates entirely independently of the EU system. A business that has applied for EU leniency must make a separate and timely application to COMCO to obtain Swiss immunity or reduction of fines. The two processes must be managed in parallel, with separate legal strategies for each jurisdiction.

What are the financial consequences of a competition law infringement in Switzerland?

Fines under Swiss competition legislation can reach a substantial percentage of Swiss turnover generated by the relevant business activity over a defined period. For cartel infringements, sanctions are calibrated to the duration and gravity of the conduct. Engaging a lawyer in Switzerland with expertise in competition enforcement at the earliest stage. whether to structure a leniency application. Respond to a COMCO investigation. Alternatively, challenge a decision before the Federal Administrative Court. materially affects the range of outcomes available. Early legal engagement is consistently more effective than reactive crisis management.

About Ferraz & Whitmore

Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our competition law practice supports international groups on Swiss cartel compliance, merger notification, market dominance assessments, and COMCO investigation defence. We combine Portuguese civil law expertise with English common law tradition to deliver cross-border competition law strategy for businesses operating across European and international markets. As a law firm in Switzerland-connected matters, we regularly advise clients whose Swiss operations intersect with EU competition proceedings and Portuguese regulatory exposure. The firm's competition practice covers civil law and common law systems across 15 practice areas, with practitioners experienced in proceedings before competition authorities and courts in both continental European and common law jurisdictions. To discuss your competition law situation in Switzerland, contact our team at info@ferrazwhitmore.com.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.