Trademark policy

In effect since the Sept. 24, 2025

Capitalized terms are defined in the TOS.

The "tenzu" word mark is protected in many countries around the world. It is the exclusive property of BIRU, as are the associated logos and domain names. By law, trademark owners are responsible for policing their trademarks and preventing the use of confusingly similar names by third parties.

As such, this document outlines the Trademark Policy enforced by BIRU on restrictions around the commercial use of the Tenzu™ trademark. The proper use of trademarks reliably assures consumers about the quality of the associated products or services and where they have been derived from. Protecting Intellectual property rights for an open source project is particularly important. Anyone can change and/or redistribute the source code, so it’s essential that only the original product, or variations that have been approved by BIRU, use the trademarks, so as not to mislead others in the community.
To be clear, the GNU AGPL v3 free license does not include an implied right or license to use BIRU's Intellectual property rights.

We do all this to protect the very business model that allows us to continue developing Tenzu for you.
If you have any doubts about your intended use of the Tenzu™ trademark, please don't hesitate to contact us by email at [email protected].

You can freely use the source code made available to you under the terms of its license, either for non-commercial purposes, or for commercial purposes as long as you replace trademarked content (including and without limitation: the Tenzu name and logo).


Allowed uses of "Tenzu

The following uses do not require permission.
However, if you violate the Trademark Policy, or otherwise take actions that may compromise the goodwill or Intellectual property rights of BIRU, or expose BIRU to liability, BIRU may require you to cease all use of any of its property rights, regardless of the uses allowed in this policy.

  • Referring to the software or the Tenzu project as the "Tenzu™ software" or the "Tenzu™ project".
  • Describing your own implementation of the Tenzu software platform (including within corporate settings).
  • Promote a Tenzu-based community hub.
  • Describing certain software you've made that integrates with Tenzu™ branded software (e.g. a Tenzu integration feature on another product).

Restricted uses of "Tenzu"

The following uses are generally prohibited without explicit and direct permission being granted to you by BIRU. This list is not exhaustive.
Our goal is to protect the Tenzu™ project from software and sites which could confuse people.

  • You can't use the word "Tenzu" or any Tenzu logos for commercial purposes without prior written permission from BIRU.
  • You can't use "Tenzu" in the name of your software (including Mobile apps)
  • You can't use "Tenzu" in your company name.
  • You cannot use "Tenzu" in your domain name.
  • You cannot use "Tenzu" in advertising-related keywords (such as Adsense).
  • You can't use "Tenzu" to describe services around Tenzu (such as hosting, training, support, consulting, project management assistance, customisation, installation, configuration, integration, analytics and certification) that would lead consumers to believe that you are affiliated with BIRU if you are not.
    This applies even if you do not charge for the services.

Only Tenzu partners can obtain some of these authorisations. Contact us to find out more.


Helping out

As a member of the Tenzu community, please let us know if you are concerned about any potentially questionable uses of the Tenzu logo and/or « tenzu » word mark. You can report any potential misuse to us. We will evaluate each case and take appropriate action.

If you have a specific question or concern about promoting Tenzu or using its trademarks, please contact us by mail at [email protected].

This policy was drafted based on various sources: