These organizations or initiatives (listed alphabetically) have formally adopted the POSI principles by publishing an initial self-audit, and committed to routinely demonstrating evidence of following POSI in practice.
| Organization | ≤ 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|
| CLOCKSS | 2024 | |||
| CORE | 2022 | |||
| COUNTER | 2024 | 2026 | ||
| Crossref | 2020 2022 |
2024 | ||
| DataCite | 2021 | 2026 | ||
| DOAJ | 2022 | 2025 | ||
| Dryad | 2020 | |||
| Europe PMC (EMBL-EBI) | 2022 | 2024 | ||
| HAL+ (CNRS) | 2024 | |||
| JOSS | 2021 | 2026 | ||
| Knowledge Commons | 2025 | 2026 | ||
| Liberate Science | 2022 2023 |
|||
| Matilda | 2026 | |||
| OAPEN and DOAB | 2023 | 2025 | ||
| OA Switchboard | 2021 | |||
| OpenAIRE | 2022 | 2026 | ||
| OpenAlex (formerly OurResearch) | 2021 | 2026 | ||
| OpenCitations | 2021 | 2026 | ||
| OPERAS | 2024 | |||
| Peer Community In | 2024 | |||
| Public Knowledge Project | 2024 | |||
| Rogue Scholar | 2025 | |||
| ROR (CDL, Crossref, DataCite) | 2020 | 2026 | ||
| Royal Repository of Innovation and Studies | 2025 | |||
| Sciety (eLife) | 2021 | |||
| SciPost | 2024 | |||
| Thoth Open Metadata | 2026 | |||
| VIVO | 2026 | |||
| World Data System | 2026 (pdf) |