FREEDOM251

Freedom251 › Business Operations

Free and open first

Best Sustainability Management Software in 2026

Sustainability management software helps organizations track environmental data, manage carbon accounting, collect supplier information, and prepare reports. Listed platforms run on the web, through APIs, and on iOS or Android.

  1. 1

    Persefoni

    Free plan APIWeb

    Persefoni combines emissions accounting coverage with guided disclosure tools and anomaly detection.

    6.9 Free plan Visit site
  2. 2

    Vaayu

    Free plan APIWeb

    Vaayu combines company footprint tracking, product assessments, and reduction planning for retail and other businesses. Check plan scope and availability, and request pricing for paid access.

    6.6 Pricing on request Visit site
  3. 3

    Brightest

    Free plan Web
    6.2 Free plan · paid from $5,900/yr Visit site
  4. 4

    CarbonChain

    Paid APIWeb

    CarbonChain combines emissions measurement, supplier analysis, and disclosure workflows for commodity-related organizations.

    5.8 Pricing on request · 14-day trial Visit site
  5. 5

    OpenEco

    Free plan Web
    5.8 Free plan Visit site
  6. 6

    LibreVS

    Free plan
    5.7 Free plan Visit site
  7. 7
    5.7 Free plan Visit site
  8. 8

    Plan A

    Paid APIWeb

    Plan A combines emissions measurement and reporting with target-setting and reduction planning for businesses. Buyers should note that pricing is on request and CSRD reporting is an add-on.

    5.3 Pricing on request Visit site
  9. 9

    SpheraCloud

    Paid AndroidiPhoneWeb

    SpheraCloud Health and Safety Management combines safety records, reporting, and compliance workflows, with mobile and kiosk reporting options.

    5.3 Pricing on request Visit site
  10. 10

    Watershed

    Paid APIWeb

    Watershed combines emissions measurement, ESG reporting, and decarbonization planning in one platform.

    5.0 Pricing on request Visit site
  11. 11

    Enablon

    Paid AndroidiPhoneWeb

    Choose Enablon if its supported frameworks, risk assessment capability, and remediation workflows fit your organization’s needs.

    4.9 Pricing on request Visit site
  12. 12

    Sweep

    Paid Web

    Sweep brings emissions data collection, reporting, and AI-assisted workflows into one sustainability platform.

    4.9 Pricing on request Visit site
  13. 13

    IBM Envizi

    Paid Web
    4.8 Pricing on request Visit site
  14. 14

    Greenly

    by Greenly
    Paid Web
    4.7 Pricing on request Visit site
  15. 15

    ESG-X

    Paid Web
    4.5 Pricing on request Visit site
  16. 16

    KEY ESG

    Paid Web
    4.5 Pricing on request Visit site
  17. 17
    4.4 From $4,000/mo Visit site
  18. 18

    Novisto

    Paid Web
    4.4 Pricing on request Visit site
  19. 19

    SmartSuite SOX Management

    Paid AndroidiPhoneWeb
    4.2 From $15/user/mo (annual) · 14-day trial Visit site
  20. 20
    4.0 Pricing on request Visit site
  21. 21
    4.0 Pricing on request · 30-day trial Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare free plans, trial terms, and paid starting prices. Check carbon accounting, reporting frameworks, emissions scopes, data integrations, supplier data collection, and audit trails. If reading or changing code matters, review the licence before choosing.

Questions

Is free sustainability management software available?

Yes. A free plan is offered by tools on this list, including Brightest, LibreVS, OpenEco, and Oracle Fusion Cloud Sustainability.

Do these products offer free trials?

Trial terms differ. CarbonChain lists a 14-day trial. Other products may list a free plan or provide pricing on request.

What pricing should I expect?

Prices range from free plans to paid services with published starting prices or quotes on request. Brightest lists paid service from $5,900 per year; Microsoft lists from $4,000 per month.

Which platforms can I use?

Listed platforms run on the web, through APIs, and on iOS or Android. Check the product details for the platform you need.

What features can I compare?

The comparison covers free plan, paid from, carbon accounting, reporting frameworks, emissions scopes, data integrations, supplier data collection, and audit trail.

More in Business Operations