Persefoni vs Sphera
Side-by-side from the Top 11 ranking of Workiva vs Watershed vs Persefoni: 11 Best ESG Reporting Software 2026. Last verified July 20, 2026.
The short answer
Persefoni ranks higher on Top 11 (#3 vs #5) for Sustainability, finance, and compliance teams choosing software to collect ESG data and file disclosures. Best audit-grade GHG Protocol carbon accounting.
At a glance
| Persefoni | Sphera | |
|---|---|---|
| Top 11 rank | #3 / Workiva vs Watershed vs Persefoni: 11 Best ESG Reporting Software 2026 | #5 / Workiva vs Watershed vs Persefoni: 11 Best ESG Reporting Software 2026 |
| Score (out of 9.4) | 8.6 | 8.2 |
| Best for | Financial-grade carbon accounting | Combined EHS and ESG for industrial operators |
| Pricing | $$$ (subscription, custom quote) | $$$$ (enterprise, custom quote) |
| HQ | Tempe, USA | Chicago, USA |
| Founded | 2020 | 2016 |
Persefoni
Best audit-grade GHG Protocol carbon accounting.
persefoni.comSee full entry in Workiva vs Watershed vs Persefoni: 11 Best ESG Reporting Software 2026
Sphera
Best fit where EHS and ESG data converge.
sphera.comSee full entry in Workiva vs Watershed vs Persefoni: 11 Best ESG Reporting Software 2026
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.