Switzerland’s banking system is renowned worldwide for its stability, security, and commitment to serving an international clientele. For investors, expatriates, and global entrepreneurs, choosing the right bank is essential for safeguarding assets and accessing premium financial services. Two key metrics help gauge a bank’s resilience: credit ratings and Tier 1 capital ratios.
A credit rating is an independent assessment of a bank’s ability to repay its obligations. Top ratings—like AAA (S&P/Fitch) or Aaa (Moody’s)—signal extremely low default risk, while ratings in the A or Baa range are still considered investment grade but denote a slightly higher risk profile. The Tier 1 capital ratio measures a bank’s core equity capital against its risk-weighted assets. A higher ratio indicates a strong cushion to absorb losses and remain solvent under stress. Regulators typically require a minimum ratio (around 8–10% under Basel III), but top banks often maintain ratios of 15% or higher to instill confidence.
Below is an in-depth analysis of some of Switzerland’s leading banks—from those with the highest credit ratings and robust capital positions to those with comparatively lower ratings. This analysis includes recent data on credit ratings, Tier 1 ratios, shareholder equity, and assets under management (AUM). In addition, we explore how these banks serve international clients. Finally, for personalized guidance in navigating Swiss banking and company registration, consider partnering with Mamytova Consulting.
Overview of Key Financial Metrics

Credit Ratings Explained
Credit ratings are determined by agencies such as Standard & Poor’s, Moody’s, and Fitch. They analyze a bank’s asset quality, capital adequacy, earnings stability, liquidity, and risk management. A high rating (e.g., AAA or Aaa) implies that the bank is extremely unlikely to default on its obligations. In contrast, a rating closer to BBB or Baa signals moderate risk, though still within the investment-grade category.
Tier 1 Capital Ratio
The Tier 1 ratio is the percentage of a bank’s core equity (common stock and retained earnings) relative to its risk-weighted assets. A higher Tier 1 ratio indicates that the bank is well-prepared to absorb losses, which is crucial during economic downturns. For example, a bank with a Tier 1 ratio above 15% is seen as having a robust capital cushion, ensuring safety for depositors and investors.
Profiles of Leading Swiss Banks
Below, we profile several secure Swiss banks that cater to international clients. The banks are ordered from those with the highest credit ratings to those with lower ratings within the investment-grade spectrum. Detailed information on their credit ratings, Tier 1 ratios, shareholder equity, and AUM is provided.
1. Zürcher Kantonalbank (ZKB)
Overview:
Zürcher Kantonalbank (ZKB) is among the most secure banks in Switzerland, benefiting from both a high credit rating and the backing of the Canton of Zurich.
- Credit Rating: AAA (S&P) / Aaa (Moody’s) – the highest possible ratings.
- Tier 1 Capital Ratio: Approximately 17.9% (2024), well above the 15% benchmark.
- Shareholder Equity: Around CHF 14.9 billion.
- Assets Under Management (AUM): Approximately CHF 300 billion under the Swisscanto brand.
- International Services: ZKB offers a full range of services including wealth management, corporate banking, and tailored solutions for non-resident clients.
Key Insights:
ZKB’s exceptional ratings stem from its strong balance sheet, conservative lending practices, and government guarantee. For international clients, ZKB represents a paragon of security, ensuring peace of mind and superior risk management.
2. Union Bancaire Privée (UBP)
Overview:
Union Bancaire Privée (UBP) is a family-owned private bank known for its expertise in wealth management and service to international clients.
- Credit Rating: Aa2 by Moody’s.
- Tier 1 Capital Ratio: 28.9% (end-2024), indicating exceptional capital strength.
- Shareholder Equity: Approximately CHF 2.0 billion.
- Assets Under Management (AUM): CHF 154.4 billion (end-2024).
- International Services: UBP specializes in customized wealth management solutions, serving private and institutional clients in over 20 locations worldwide.
Key Insights:
UBP’s high Tier 1 ratio reflects its conservative risk profile and strong capital base. International investors appreciate UBP’s personalized approach combined with its extensive asset management capabilities.
3. Lombard Odier
Overview:
Lombard Odier is one of Switzerland’s oldest private banks, noted for its long-term stability and high capital buffers.
- Credit Rating: AA- by Fitch.
- Tier 1 Capital Ratio: Although not explicitly published, its Common Equity Tier 1 (CET1) ratio stands at an impressive 32% (end-2024).
- Shareholder Equity: The bank’s balance sheet reflects a robust capital base, supported by retained earnings and conservative management practices.
- Assets Under Management (AUM): Approximately CHF 327 billion.
- International Services: Lombard Odier offers bespoke cross-border wealth management and investment advisory services to a global clientele.
Key Insights:
Lombard Odier’s high CET1 ratio of 32% signifies a very strong capital cushion. Its long heritage and focus on conservative risk management make it a safe haven for international clients seeking personalized wealth management solutions.
4. Pictet Group
Overview:
Pictet Group is a premier private banking institution known for its prudent management and significant financial strength.
- Credit Rating: Aa2 by Moody’s and AA- by Fitch.
- Tier 1 Capital Ratio: 24.5% (end-2024), comfortably above regulatory requirements.
- Shareholder Equity: CHF 3.78 billion.
- Assets Under Management (AUM): CHF 724 billion.
- International Services: Pictet focuses on wealth and asset management for both private and institutional clients worldwide, offering tailored financial solutions.
Key Insights:
Pictet’s robust capital ratios and massive AUM underscore its financial muscle and commitment to long-term stability. With a global network of offices, Pictet is highly trusted among international investors.
5. LGT Group
Overview:
LGT Group is a major private banking and asset management firm owned by the Princely Family of Liechtenstein, known for its conservative management and international focus.
- Credit Rating: A+ by S&P and Aa2 by Moody’s.
- Tier 1 Capital Ratio: 18.2% (end-2024).
- Shareholder Equity: The bank’s regulatory capital meets or exceeds CHF 500 million.
- Assets Under Management (AUM): CHF 367.5 billion.
- International Services: LGT offers tailored wealth management and investment services, with extensive experience in serving clients with cross-border financial needs.
Key Insights:
LGT’s strong Tier 1 ratio and international expertise make it a solid choice for clients seeking both stability and personalized service. Its ownership structure further enhances its long-term commitment to conservative banking.
6. Vontobel
Overview:
Vontobel is a respected Swiss bank that excels in investment services and wealth management, with a solid credit standing and a strong capital profile.
- Credit Rating: Aa3 by Moody’s.
- Tier 1 Capital Ratio: 20.9% (end-2024).
- Shareholder Equity: Approximately CHF 2.23 billion.
- Assets Under Management (AUM): CHF 225.9 billion (as of June 2024).
- International Services: Vontobel offers a wide range of services including personalized portfolio management and advisory services, with offices in multiple global financial centers.
Key Insights:
Vontobel’s robust capital ratios and high credit rating ensure a secure banking experience. Its international presence and client-centric approach make it an attractive option for those looking for innovative and secure investment solutions.
7. J. Safra Sarasin
Overview:
J. Safra Sarasin is a highly regarded Swiss private bank known for its extremely strong balance sheet and conservative risk management.
- Credit Rating: A/A-1 by S&P.
- Tier 1 Capital Ratio (CET1): An outstanding 47.0% as of the end of 2023.
- Shareholder Equity: The bank reported a strong balance sheet of CHF 42.5 billion at the end of 2023.
- Group CET1 Capital: CHF 5.7 billion, reflecting a remarkably high CET1 ratio.
- Assets Under Management (AUM): CHF 204.3 billion.
- International Services: With over 180 years of heritage and a network spanning 30+ locations worldwide, J. Safra Sarasin offers bespoke wealth management and asset custody solutions tailored for international clients.
Key Insights:
A CET1 ratio of 47.0% is exceptionally high, underscoring the bank’s conservative capital management. The strong balance sheet and significant group CET1 capital make J. Safra Sarasin one of the most secure institutions in Switzerland, appealing to clients seeking unmatched financial safety.
8. EFG International
Overview:
EFG International is a well-regarded Swiss private banking group noted for its robust financial metrics and solid international presence.
- Credit Rating: A3 by Moody’s and A by Fitch.
- Tier 1 Capital Ratio (CET1): 17.7% as of the end of 2024 (an improvement from 17.0% at the end of 2023).
- Total Capital Ratio: 21.5% as of the end of 2024 (up from 21.0% at the end of 2023).
- Shareholder Equity: CHF 2.0 billion.
- Assets Under Management (AUM): CHF 40.6 billion.
- International Services: With operations in over 40 locations worldwide, EFG International provides tailored wealth management, investment advisory, and custody services, especially for globally mobile clients.
Key Insights:
EFG’s incremental improvements in its CET1 and total capital ratios reflect its continuous efforts to strengthen its balance sheet. Its focus on disciplined capital management and global reach make it a safe, growing choice for international investors.
9. UBS Group AG (Includes Credit Suisse)
Overview:
UBS Group is Switzerland’s largest bank and a global leader in wealth management and investment banking.
- Credit Rating: Rated A- by S&P for the group and A+ (prior to integration) for its main operating bank; Moody’s rates key instruments at A3.
- Tier 1 Capital Ratio: Approximately 14.3% as of 2024 (a robust figure given its massive balance sheet).
- Shareholder Equity: Around CHF 85 billion.
- Assets Under Management (AUM): The group manages over US$1.565 trillion in assets, making it one of the world’s largest wealth managers.
- International Services: UBS has an extensive global network, operating in over 50 countries. It offers comprehensive services ranging from private banking and asset management to investment banking and corporate finance. Its specialized desks cater to non-resident clients and multinational entities.
Key Insights:
Despite a Tier 1 ratio slightly below 15%, UBS’s enormous scale and diversified revenue streams underpin its overall strength. Its global integration, particularly after the Credit Suisse acquisition, allows UBS to offer a one-stop solution for international clients while maintaining Swiss banking standards.
10. Axion Swiss Bank SA
Overview:
Axion Swiss Bank SA is a smaller institution compared to its peers but offers personalized services and benefits from state association.
- Credit Rating: Not explicitly published by major agencies.
- Tier 1 Capital Ratio: 34.8% as of December 31, 2023.
- Core Tier 1 (CET1) Ratio: 27.2% as of December 31, 2023.
- Shareholder Equity: CHF 91.6 million (end of 2023), which is below the larger banks’ thresholds.
- Assets Under Management (AUM): CHF 1.24 billion (end of 2023).
- Ownership: Axion is owned by Banca dello Stato of Canton Ticino, providing additional security through state backing.
- International Services: Despite its smaller scale, Axion offers highly personalized banking and wealth management services for international clients, focusing on bespoke financial solutions.
Key Insights:
Axion Swiss Bank may have lower absolute capital and AUM compared to industry giants, but its impressive Tier 1 ratio (34.8%) and strong CET1 ratio (27.2%) indicate excellent capital quality. With the support of state-associated ownership, Axion offers boutique, secure banking solutions ideal for clients seeking individualized attention and a conservative risk profile.
Comparative Summary Table
The table below summarizes key metrics for all featured banks, arranged from the highest credit ratings and overall financial strength to those with smaller scales:
Bank | Credit Rating | Tier 1 / CET1 Ratio | Shareholder Equity | AUM (Approx.) | International Services |
---|---|---|---|---|---|
Zürcher Kantonalbank (ZKB) | AAA / Aaa | ~17.9% (2024) | CHF 14.9 billion | ~CHF 300 billion | Yes |
Union Bancaire Privée (UBP) | Aa2 (Moody’s) | 28.9% (2024) | CHF 2.0 billion | CHF 154.4 billion | Yes |
Lombard Odier | AA- (Fitch) | ~32% CET1 (2024) | (Private Partnership; strong) | CHF 327 billion | Yes |
Pictet Group | Aa2 (Moody’s) / AA- (Fitch) | 24.5% (2024) | CHF 3.78 billion | CHF 724 billion | Yes |
LGT Group | A+ (S&P) / Aa2 (Moody’s) | 18.2% (2024) | Sufficient by regulatory standards | CHF 367.5 billion | Yes |
Vontobel | Aa3 (Moody’s) | 20.9% (2024) | CHF 2.23 billion | CHF 225.9 billion | Yes |
J. Safra Sarasin | A / A-1 (S&P) | 47.0% (2023) | CHF 42.5 billion | CHF 204.3 billion | Yes |
EFG International | A3 (Moody’s), A (Fitch) | CET1: 17.7% (2024) | CHF 2.0 billion | CHF 40.6 billion | Yes |
UBS Group AG | A- (S&P), A3 (Moody’s for deposits) | ~14.3% (2024) | CHF 85 billion | >US$1.565 trillion | Yes |
Axion Swiss Bank SA | Not available via major agencies | Tier 1: 34.8%; CET1: 27.2% (Dec 2023) | CHF 91.6 million | CHF 1.24 billion | Yes |
Note: Data reflects the latest available figures (2023–2024) and are approximate.
Explaining the Metrics: Why They Matter
The Logic Behind Credit Ratings
Credit ratings distill a bank’s risk profile into a simple letter grade. They consider:
- Asset Quality: The reliability of the bank’s loans and investments.
- Capital Adequacy: How much capital the bank holds relative to its risk-weighted assets.
- Earnings Stability: Consistent profitability improves ratings.
- Liquidity: The bank’s ability to cover short-term obligations.
- Ownership Structure: Banks with state guarantees or solid family ownership often enjoy higher ratings because these structures offer additional assurance.
For instance, Zürcher Kantonalbank’s top ratings are largely due to its cantonal backing, while J. Safra Sarasin’s impressive 47.0% CET1 ratio reflects its extremely conservative capital management.
Tier 1 Capital Ratio Explained
The Tier 1 ratio is a key measure of a bank’s financial strength. It represents the ratio of core equity (Tier 1 capital) to its risk-weighted assets. A high Tier 1 ratio indicates that a bank is well-prepared to absorb losses, which is critical during economic downturns. Banks typically aim for ratios above 15% to provide a substantial buffer for both creditors and depositors. For example:
- J. Safra Sarasin’s 47.0% CET1 ratio means that almost half of its risk-weighted assets are fully backed by core capital.
- Axion Swiss Bank’s Tier 1 ratio of 34.8% (and CET1 of 27.2%) is impressive for a smaller bank, showing that it maintains a high standard of financial security despite its size.
Conclusion

This review provides a detailed overview of some of Switzerland’s most secure banks for international clients. However, it does not cover all banks that meet our criteria—namely, those with an investment-grade rating of at least BBB, a Tier 1 capital ratio of at least 15%, shareholder capital of at least CHF 500 million, and assets under management exceeding CHF 10 billion. There are many other Swiss institutions that also offer robust financial security and a wide range of services for international clients.
While we strive to present the latest available data, we cannot guarantee its complete accuracy or timeliness. This review is provided solely for informational purposes and does not constitute financial advice or a recommendation to select any specific bank.
For international investors and entrepreneurs seeking to engage with Swiss financial institutions—or those considering company registration and bank account setup in Switzerland—professional guidance is indispensable. Mamytova Consulting offers comprehensive advisory services to open a swiss bank account and help you navigate the Swiss banking landscape, ensuring that you choose the institution best suited to your financial needs and that all regulatory requirements are met smoothly.
This comprehensive analysis provides a robust overview of secure Swiss banks for international clients, detailing financial strength, credit ratings, Tier 1 ratios, and tailored services. Armed with these insights, you can make informed decisions and confidently engage with Switzerland’s world-class banking system.