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We provide discreet and reliable private investigation services throughout Switzerland, customized to meet both individual and corporate requirements
Private investigator Switzerland
If you are looking for a trusted and experienced Private Investigator in Switzerland, DET.GROUP is your reliable partner. We provide professional, discreet, and fully compliant investigative services throughout the country, operating strictly in accordance with Swiss legislation. Our mission is to deliver accurate intelligence, verified evidence, and absolute confidentiality to individuals, businesses, and legal professionals.
In a fast-changing world, reliable information is critical for making sound decisions. Whether you are facing a sensitive personal matter or seeking to protect your business from fraud, internal threats, or reputational risks, our expertise ensures you get the clarity and proof you need. All our investigations are conducted with precision and efficiency, producing results that stand up to legal scrutiny.
As one of Switzerland’s leading private investigation agencies, we provide a full spectrum of services tailored to each client’s needs. Our infidelity investigations discreetly confirm or disprove suspicions with documented evidence, while our surveillance operations use advanced technology to gather accurate and lawful intelligence. We conduct person and address tracing to locate individuals both in Switzerland and internationally, as well as thorough background checks for private, corporate, and pre-employment purposes. For businesses and investors, our due diligence investigations provide essential insights before partnerships or acquisitions, and our asset tracing identifies hidden or disputed assets in legal and financial cases. We also offer employment verification to confirm professional credentials, and we specialize in missing persons searches, helping reconnect families, locate debtors, or find long-lost contacts.
Each case is unique, which is why we develop bespoke investigative strategies to meet its specific complexity. For corporate clients, we also offer specialized services such as fraud detection, internal audits, competitor analysis, and cybersecurity assessments to safeguard business continuity and protect against emerging risks.
Choosing DET.GROUP means choosing expertise, discretion, and trust. Our licensed investigators combine years of field experience with cutting-edge investigative tools to deliver results legally, effectively, and with the utmost confidentiality.
In Switzerland, the practice of private investigation is regulated at the cantonal level in certain regions. In these cantons, specific licensing requirements—such as those outlined in the Privatdetektivverordnung (e.g., SR 451.13)—must be met before a private investigator can legally operate. These regulations typically require proof of integrity, professional qualifications, and adherence to strict ethical standards. Licenses are issued by the relevant cantonal authority, and holding a valid license is a legal prerequisite for providing investigative services in those jurisdictions. At DET.GROUP, we strictly comply with all applicable cantonal licensing laws, ensuring our operations remain fully lawful, ethical, and recognized by the proper authorities.
Where we operate?
At DET.GROUP, we provide professional and discreet private investigation services throughout Switzerland, ensuring complete nationwide coverage. Our experienced investigators are ready to assist you in major cities such as Zurich, Geneve, Basel, Lausanne, Bern, Winterthur, Luzern, St. Gallen, Lugano, Biel, and Thun. Whether you need help with a sensitive personal matter or a complex corporate investigation, we are committed to delivering precise, legally compliant evidence and uncovering the truth—wherever you need us in Switzerland.
Payment Options
We provide a variety of safe and convenient payment methods designed for your flexibility and peace of mind. You can settle payments using credit or debit cards (Visa, MasterCard), bank transfers, pre-arranged cash transactions, mobile solutions such as Apple Pay, or even digital currencies like Bitcoin.
The investigation process starts once we receive the agreed deposit, and all activities are carried out within the scope of that payment. Every transaction is handled with the highest level of security and discretion, and detailed invoices are available upon request.