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InnerSource Maturity Matrix

This maturity matrix is based upon the Maturity Model InnerSourcePattern available from and is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

This document also contains input from the FINOS InnerSource SIG meeting held in April 2021. This is intended as a working document for the FINOS InnerSource SIG to build upon as they work towards producing an InnerSource maturity matrix for the Financial Services sector.


The purpose of the InnerSource Maturity Matrix Tool is to assess the InnerSource health for an organization.


  • Level 0: Accidental - individual initiatives
  • Level 1: Exploration - let's try this
  • Level 2: Adoption - corporate support
  • Level 3: Efficient - widely adopted

Further Reading