The 5 best private investigators in Zurich for thorough and accurate results
We never thought we’d end up hiring a private investigator in Zurich, but a messy business fallout left us with no choice. At first, it was just little things—documents out of place and deals that didn’t quite add up.
Soon, our uneasiness grew. It felt like we weren’t being told the complete story, and that uncertainty kept us up at night.
So, we tried digging on our own. But the deeper we went, the more obvious it became that we didn’t have the tools or expertise to uncover the truth. That’s when we decided it was time to call in professional investigators to find the clarity we needed.
How much do private investigators charge in Zurich?
Private investigators in Zurich typically charge between CHF 100 and CHF 250 per hour. However, costs vary based on factors such as the investigator’s experience, the complexity of the case, and the duration of surveillance or research required.
1. Detectivfrei AG
Address: Brunaustrasse 72, 8002 Zürich
Contact Details: +41 44 283 60 80
Operating Hours:
- Monday-Sunday: Open 24 hours
When it comes to discreet surveillance and investigations, Detectivfrei AG easily makes its mark.
Their long-standing presence, dating back to 1949, gives them a solid reputation. It’s truly evident how strongly they focus on fraud cases and personal monitoring.
We appreciate that they offer comprehensive and diverse services. This includes recovering assets, conducting solvency checks, conducting covert surveillance and observation, and conducting IT forensics.
But of all, the feature we like most about them is their skill in location tracing. Whether it’s finding someone for legal reasons or simply tracking a missing connection, their team handles it with impressive precision.
Plus, their services extend into business intelligence. They also offer due diligence and background checks that are practical for both companies and individuals.
The only drawback we noted is that their service scope is more traditional, so if you’re after high-tech cyber forensics, you might need to look elsewhere.
Transparent and swift service
“Very transparent, detailed, swift and considerate resolution of my request. Will be definitely coming back with more inquiries in the future.”
- Julie Gabriel, Google Review
Professional and highly recommended
“The best detective agancy in Switzerland. Professional, confidential, friendly and solved my problem in no time. I give Themis and his team my highest recommendations.”
- Stina B M, Google Review
2. Detektei W&K
Address: Schaffhauserstrasse 550, 8052
Contact Details: +41 44 461 12 71
Operating Hours:
- Monday-Sunday: Open 24 hours
If you’re after serious help from someone who handles both personal and business cases, Detektei W&K is a name worth remembering.
Founded in 1968, they bring more than five decades of investigative experience to the table. They’re well known for their strong focus on investigating corporate cases, such as fraud, insurance scams, and unfair competition.
They also handle the deeply personal situations most people never want to face alone. This includes messy inheritance disputes, workplace bullying, or sensitive infidelity cases. Their reputation is built on discretion, careful documentation, and a methodical approach.
What truly sets them apart is their international reach. Detektei W&K is part of a broader global network and holds memberships in respected organisations such as the World Association of Detectives, ASIS International, and IAATI.
On the protective side, they go beyond classic surveillance with security consulting, escort services, and even child abduction prevention.
However, their strength still leans toward traditional investigative methods. If your case relies heavily on digital forensics or cyber tracking, their approach may feel a little bit old-school.
Experienced and trustworthy investigator
“We strongly recommend Mr. Senn. He is a absolutly, verry seious, experinced and competent investigater. Fair rates an great Follow-up. Thank you so much for your help. Your personality, staff and tecnical Support impressed us.”
- Rolf & Claudine Müller, Google Review
Outstanding expertise with proven results
“Thanks to the outstanding expertise, patient perseverance, and excellent advice, I was delighted with the truly near-perfect result of the work. The proof of many years of experience is reflected in the result; I was very satisfied. Many thanks to the team and kind regards, J. Pauli”
- Jürg Pauli, Google Review
3. Private Investigator Switzerland
Address: c/o Swiss Security Solutions, Schaffhauserstrasse 550, 8050
Contact Details: +41 44 586 60 33
Operating Hours:
- Monday-Sunday: Open 24 hours
Private Investigator Switzerland stands out for its wide scope of investigative work. They take on major cases such as fraud, identity theft, and romance scams. They even show expertise in globally hidden assets worth billions, yet somehow make it look effortless.
You’ll then appreciate their technical side, where they truly excel. Digital forensics digs into phones, laptops, and GPS systems, pulling out “lost” data that can be used as smoking guns. It feels like CSI-level skills being applied to real-life investigations.
They don’t just chase digital trails either. Skip tracing and process serving come with court-ready reports, backed with photos or video.
We were also surprised by how they handle rare situations, such as verifying a death abroad and accessing international documents.
Yet then again, high-end services, especially advanced forensics, can get pricey.
Still, their speed in asset tracing and due diligence stands out, often delivering results in days instead of weeks. They are particularly strong at uncovering shady money trails and offshore accounts, and at conducting fast background checks.
Clear insights into asset tracing and due diligence
“2) I hired Private Investigator Switzerland to assist me with a complex matter that involved fake identities, non-existent companies, and forged documents. They found digital footprints, connected anonymous accounts, traced IPs, and revealed the sources of internal leaks, and identified the criminals with cyber tracing. Their report was very good, ready for court, and useful for planning. They are the best choice for high-stakes digital and identity investigations.”
- Vinyvany Plus, Google Review
Expert help in digital and identity investigations
“1) Private Investigator Switzerland had a contract to help me with a case that involved both asset tracing and due diligence for a possible investment. The investigators explained the process clearly and worked well across different jurisdictions. Their due diligence report brought up legal problems, hidden connections, and risks from regulations. At the same time, asset tracing found properties and offshore holdings that had not been reported. The report was clear, well-organised, and ready for lawyers to look over. Because of their work, I was able to avoid a risky deal and keep my money safe. Highly recommended for anyone who needs professional, private, and international-level investigative help.”
- Alassane Kante, Google Review
4. Detektei Lentz
Address: Gubelstrasse 19, 8050
Contact Details: +49 6181 4406350
Operating Hours:
- Monday-Sunday: 8:00 AM – 5:00 PM
Detektei Lentz is certified under DIN SPEC 33452 and ISO 9001:2015, which means their work follows standardised quality and compliance systems.
A major trust factor is that they use only fixed staff and in-house detectives. There are no subcontractors or untrained freelancers involved, so every case stays fully controlled and professionally handled from start to finish.
Another standout is transparency. There are no hidden fees, no surprise travel charges, and clients receive daily encrypted updates. It brings unusual clarity to an industry that often feels opaque.
They also offer a free and anonymous first consultation by phone or video. And what’s nice about it? The responses are typically provided within 24 hours, making it easy to explore your options without pressure.
Their case range is broad yet focused. One day, they may be handling a child custody dispute or an infidelity check, and the next, it’s payroll fraud or a full corporate due diligence.
If there’s one drawback, it’s their tone and structure. Their operations are highly formal. That’s excellent for clients who value order and precision, but it may feel stiff for those who prefer a more flexible agency style.
Professional results that convinced lawyers
“Our interests were handled professionally and appropriately. The outcome was convincing both to us and our lawyers, who also noted the contact details of the Lentz Detective Agency.”
- Maximilian Lehrer, Google Review
Empathy and competence with impressive outcomes
“I can happily attest to a high level of empathy and competence. Priced in the upper average range. Result far, far beyond our expectations.”
- Paul Vogel, Google Review
5. Die Detektivin
Address: Seefeldstrasse 152, 8008
Contact Details: +41 44 251 00 77
Operating Hours:
- Monday-Saturday: Open 24 hours
- Sunday: Closed
If your case involves a highly personal or domestic concern, Die Detektivin is the agency you’ll turn to. Infidelity suspicions, stalking worries, or property issues—they handle those sensitive cases with empathy and quiet professionalism.
What makes them different is their level of connection to the community. They don’t just work for private clients, but they also help towns address problems like welfare fraud, vandalism, and even illegal dumping.
They also think about safety in everyday life. You’ll see them escorting children or VIPs or checking in on your house while you’re away, since their services stretch beyond the usual detective work.
On top of that, they offer discreet background checks that help clients make informed decisions before situations escalate. These checks cover everything from verifying identities and financial histories to confirming employment or personal connections.
The only downside is that their main focus stays around Zurich and Zug, so they may not suit every case.
Expert support with empathy and professionalism
“I can wholeheartedly recommend the private investigator. She approached my case with exceptional commitment, great empathy, and absolute professionalism. From the very first contact, I felt in good hands with her. I was particularly impressed by her expertise: She is a true expert in her field, thinks strategically, always remains focused, and solved the case with impressive diligence and competence. Her extensive training in coaching was a real added value. She was able to help me not only with the case but also provide me with tremendous psychological support.”
- Sandra Ullrich, Google Review
Reliable service that exceeds expectations
“Very competent, reliable and trustworthy. My expectations were more than exceeded, and I would recommend the detective 100%.”
- Jasmin Schneider, Google Review