As an internationally operating parcel service provider GLS Group stands for fair competition, integrity and responsibility.

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Code of Business Standards

The Code of Business Standards forms the basis of all business activities of GLS Group. Furthermore it shows the obligation of GLS Group towards its stakeholders.

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Supplier Code of Conduct

GLS expects its suppliers to respect the standards laid out in this Supplier Code of Conduct, implement them using appropriate measures and adhere to them in their business activities.

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Modern Slavery Act

General Logistics Systems B.V. (GLS) is part of the Royal Mail Group.
Royal Mail plc is committed to playing its part in helping to prevent any incidence of modern slavery in its business and supply chain.
Read Royal Mail Modern Slavery Act statements.

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Environmental Standard

The conservation of resources and the reduction of emissions are of central importance at GLS. Together with its employees, customers and suppliers, GLS wants to become one of the leading providers of sustainable parcel services.


Whistleblowing / Ombudsman system

Only violations or circumventions of applicable laws are subject to reporting under the Whistleblowing procedure to Dr. Buchert and WKB

Please report complaints, grievances, irregularities through the contact form

Whistleblower / Ombudsman

On such matters all employees, business partners and third parties may contact

WKB Wierciński, Kwieciński, Baehr sp. k.
Malachowskiego Square 2, 00-066 Warsaw,
Paderewskiego 7, 61-770 Poznań
Tel: 22 201 00 95 (Mon-Fri 8:00 am-8:00 pm)

Notifications to WKB shall be subject to violations or circumvention of the applicable law and internal regulations of GLS Poland.

When accepting reports, WKB acts with due diligence, in accordance with the law and principles of professional ethics. WKB shall ensure the confidentiality of the data and identity of the applicants and any third party mentioned in the application. WKB representatives are obliged to keep professional secrecy and therefore to maintain full confidentiality of the matters and information obtained in the course of cooperation with GLS Poland, except for the situation where WKB uses such information to properly perform its duties or where the obligation to disclose the information arises from the provisions of law.


Attorney Dr Rainer Buchert
Kaiserstraße 22
60311 Frankfurt am Main
Tel: +49 69 710 33 330 or +49 6105 92 1355
Fax: +49 69 710 34 444

Contact form

Dr Buchert will not consider complaints concerning matters which are not of a criminal or similar serious nature. When in doubt, he will advise on how to proceed.

All complaints will be treated in confidence. Dr Buchert is required by his statutory lawyers’ confidentiality obligations not to disclose the identity of callers without their explicit consent to do otherwise. He also has the right to refuse to give evidence (including the identity of whistleblowers) if requested by a court of law. Complaints to the ombudsman will only be passed on to the GLS Group once the consent of the complainant has been received.

Of course, concerns in respect of the above matters can also be reported to an employee's line manager or other contact person within the GLS Group.

Contact to GLS Poland Compliance Officer: