OpenSlice
Network as a Service, made easy
What's new Release 2025Q4 is coming soon!ETSI Software Development Group OpenSlice (SDG OSL) is developing an open-source, intelligent Operations Support System (OSS) to deliver Network as a Service (NaaS), based on TM Forum's Open Digital Architecture (ODA).

With OpenSlice we take another step in the Network Transformation journey we started some time ago, complementing our open-source toolset with powerful, cloud-native service orchestration capabilities, and allowing us to bridge gaps in the application of standards to network automation.
Our mission
SDG OpenSlice is on a mission to democratize network automation. We are building a Operations Support System (OSS) that bridges the gap between complex infrastructure and agile service delivery, backed by a profound engineering background.
Rooted in the success of the EU-funded 5G-VINNI Project, our platform is built on TM Forum’s ODA principles and infused with state-of-the-art intelligence. We empower operators with plug-and-play network and cloud controllers designed for the real world.
We ensure industry alignment by actively collaborating with leading Standards Development Organizations (SDOs) and open-source communities, including TM Forum, Linux Foundation, ETSI ZSM, NFV, OpenSourceMANO, TeraFlowSDN, and OpenCAPIF.
How to join?
Joining OpenSlice is very easy! The participation is open to ETSI Members and non-members:
| Corporate Contributors | Individual Contributors & Users |
|---|---|
| ETSI Members and non-member organizations join ETSI OpenSlice by signing the SDG OSL Agreement. Participation is free for ETSI members, SMEs, Universities, Public Research Bodies and User and Trade Associations. | Individuals not representing any organization can create an Individual Account. Individual Contributors shall accept the Individual Contributor License Agreement. Participation is free for individual contributors and users. |
Need more information or help? Contact us!
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Backed by globally recognized industry leaders
With a very diverse membership, the OpenSlice initiative is backed by a diverse group of organizations, including telecom operators, vendors, and research institutions.
This collaborative effort aims to create a robust and flexible research platform that meets the evolving needs of the telecommunications industry.
In the news
Read our latest news and articles to stay informed about the latest developments in the OpenSlice initiative.

ETSI SDG OSL makes publicly available its 2025Q2 Release.

Kostis Trantzas

ETSI SDG OSL makes publicly available its 2024Q4 Release.

Kostis Trantzas

Demonstrating Synergies Between ETSI SDG OpenSlice (OSL) and LF Sylva: PART 3

Christos Tranoris
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