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Channels for reporting misconduct

In order to obtain knowledge of any compliance violations, we provide various ways for internal and external parties to report them. The compliance reporting channel “Tell Us,” the Ombudsman and accounting complaints are protected channels that Siemens employees and external stakeholders can use to raise concerns about possible violations, confidentially and if desired, also anonymously.

In addition, possible misconduct can also be reported directly via the Managing Board or via managers to the Compliance Organization, in particular to the Compliance Officers in the individual corporate units. Our employees make regular use of this reporting channel.


Employees who report compliance violations at Siemens are protected by a special guideline that prohibits sanctions of any kind when reports are made in good faith. Thus, anyone who reports possible violations in good faith may not be disadvantaged in any way at Siemens.

Compliance Hotline “Tell Us”

The compliance whistleblower hotline “Tell Us” gives all employees and external stakeholders a secure mechanism for the reporting of compliance violations.

Multilingual and anonymous


Integrity and transparency are of the highest priority in supporting the confidence our customers, partners, shareholders and employees place in Siemens.  Therefore, it is important that Siemens is aware of all compliance violations, especially those that are against the law or violate our Business Conduct Guidelines.



The “Tell Us” hotline is for reporting compliance violations in a secure manner, 24 hours a day, 7 days a week, in 13 languages, online or via telephone.  You may choose to make your report anonymous.  “Tell Us” can be used by employees and management as well as customers, suppliers and other stakeholders.  The “Tell Us” system is managed by a third party supplier.  All data supplied in a report is maintained on secure servers in Germany.  All reported content is handled exclusively by Siemens.


Siemens internal whistleblowers are protected by special regulations that protect whistleblowers who make good faith reports to the best of their knowledge. Please be aware that intentional reporting of false information is prohibited by law in many countries.


More information regarding whistleblower reports is available on the “Tell Us” homepage.


“Tell Us” is available on a secure server by following this link.


In addition to “Tell Us”, the Siemens Ombudsman is also available for the reporting of compliance violations.

Central office for reporting


The Siemens Ombudsman is the central office for reporting improper business practices.

The attorney Andreas von Máriássy from the Munich law firm "von Máriássy Dr. von Stetten Rechtsanwälte" has been appointed to serve as an external ombudsman for the Company, in order to give employees a protected reporting channel for possible compliance violations. Employees and external parties can contact this impartial individual on a confidential and anonymous basis if they have observed any improper business practices in the Company.


Law firm "von Máriássy Dr. von Stetten Rechtsanwälte"
Attorney Andreas von Máriássy
Telephone: +49 89 24 20 56 80