diff --git a/ADOPTERS.md b/ADOPTERS.md
index 864cc8945c..a90e8aef27 100644
--- a/ADOPTERS.md
+++ b/ADOPTERS.md
@@ -250,4 +250,5 @@ _You can do this by using the [Adopter form](https://info.backstage.spotify.com/
 | [Inventa](https://www.inventa.shop) | [João Munhoz](https://github.com/joaovitormunhoz), [Lucca Fonte](https://github.com/luccafonte) | We use Backstage at Inventa to share knowledge between squads, in the form of technical documentation, API contracts, and service status/ownership info, fomenting a self-service and scalable engineering culture. We also developed a plugin that allows us to have a centralized view of all the engineering tools we have for each environment, making it easy to access each one of our tools and increasing productivity. |
 | [PITS Global Data Recovery Services](https://www.pitsdatarecovery.net/) | [@pheianox](https://github.com/pheianox) | The internal developer portal seeks to combine infrastructure tooling, services, and developer documentation into a single, user-friendly interface. By streamlining these components, the portal enhances productivity and simplifies the development process for the internal team. |
 | [Ericsson](https://www.ericsson.com/) | [Shane Kelly](https://www.linkedin.com/in/shane-kelly-2367816/) | We are adopting backstage to use as our Internal Developer Portal. Our goal is to improve Developer Experience by reducing cognitive load through backstage as a single point for developer information, documentation, tools, software insights and developer metrics. To enable golden paths using the scaffolder and improve developer self service through automation of infrastructure provisioning and configuration. |
-| [Paylocity](https://www.paylocity.com) | [@mharrah](https://www.linkedin.com/in/mattharrah/) | We're basing our internal developer hub we call Nucleus on Backstage.  We're starting with the software catalog, then will gather feedback from our developers on what features they want next...integrations, templates, expanded catalog info, etc. |
\ No newline at end of file
+| [Paylocity](https://www.paylocity.com) | [@mharrah](https://www.linkedin.com/in/mattharrah/) | We're basing our internal developer hub we call Nucleus on Backstage.  We're starting with the software catalog, then will gather feedback from our developers on what features they want next...integrations, templates, expanded catalog info, etc. |
+| [Celonis](https://celonis.com) | [@georgeyord](https://github.com/georgeyord), [@LauraMoraB](https://github.com/LauraMoraB), [@mariosant](https://github.com/mariosant), [@Rbillon59](https://github.com/Rbillon59) | Internal developer and product portal implementation. |