About Wallner Detective Agency

Vienna Detective Agency • Baden Detective Agency • Salzburg Detective Agency • Graz Detective Agency

Company - Mag. iur. Richard Wallner

• Studied law in Graz and Vienna
• Lawyer with practical experience in district and regional courts
• Many years of experience as a professional investigator in Austria and abroad.

Ten specialists work in the detective agency of Mag. Wallner using the most up-to-date methods, and guarantee quick, professional, and discreet assignment management.


Our work focuses on the client and the completion of an assignment. Our priorities are therefore high efficiency, absolute discretion, and complete trust.

Our investigative work is characterized by the following values:

• Our clients have the right to the best advice from our detective agency. The initial
consultation is always free of charge and clarifies all important points.
• Our clients have the right to be taken seriously with their problems.
• We guarantee competent contact people who will look after you personally.
• We stand for investigative expertise at the highest level and can offer a wide range of
activities through association with experts in various investigative fields (technicians,
lawyers, investigators, bodyguards, etc.).
• Our detectives are on duty for you around the clock and carry out all assignments
quickly and at the highest level.
• Strict observance of the duty of confidentiality and absolute discretion is our top priority.
• We always use the most modern techniques to complete our assignments.
• Our detective agency guarantees absolute transparency in the calculation of fees.


The professional investigators of Mag. Richard Wallner observe and investigate all of life’s circumstances, including adultery, inheritance matters, personal surveillance, business investigation and competition law.

Numerous well-known clients from both the private and business sectors have already placed their trust in us and made use of our expertise.

Years of experience in the detective field, a highly qualified team, and tried and tested means for solving your case are our strengths and guarantee our clients’ total satisfaction.

We would like to invite you to a free initial consultation, where we will clarify all the important facts with you and outline a possible solution for you. We will discuss the process together and explain what the fee might look like. We provide detailed and chronological reporting.

Private investigator for private clients

A private investigator is a person who can solve personal problems quickly and effectively without unnecessary fuss. The great advantage with our detectives is the full reporting on the work done, together with the necessary explanations.

Private clients

Private investigator for business clients

External investigation of a person helps to clarify any pattern of information leakage, to confirm the honesty of business partners and to check the loyalty of employees. Our high-quality technical equipment allows business detectives and lawyers to obtain all information in full.

Business clients

Technology, security & privacy

All of our detectives in Vienna have been trained as professional investigators. This ensures that our high quality standards and demands are met. The protection of privacy and personal data is of great importance to us and is undertaken in accordance with the applicable data protection regulations.

Technology & privacy

Our locations

Detective Agency

Wollzeile 11/2nd floor,
1010 Wien

+43 / 664 860 88 40

Detective Agency

Kaiser-Franz-Ring 8/2/26,
2500 Baden

+43 / 664 / 860 88 40

Detective Agency

Moosstrasse 60,
5020 Salzburg

+43 / 664 / 860 88 40

Detective Agency

Liebenauer Hauptstraße 2-6,
8041 Graz

+43 / 664 / 860 88 40

„I look forward to hearing from you. Our clients appreciate our personal commitment and the seriousness with which we successfully complete every assignment.“

- Mag. Richard Wallner

About us »

Do you need help and are you looking for a reliable private detective?

Then we look forward to your inquiry, which we will answer as soon as possible.


Thank you very much ! We will get back to you as soon as possible!