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Head-to-head · Carbon Accounting Software

IBM Envizi vs Persefoni

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score IBM Envizi #1 in Carbon Accounting Software 9.4/10 Pricing on request ✓ 3 of 3 features Visit IBM Envizi
Persefoni #6 in Carbon Accounting Software 8.9/10 Free plan Free plan✓ 3 of 3 features Visit Persefoni

IBM Envizi leads on 0 checks, Persefoni on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreIBM Envizi · 9.4/10
  • Free planonly Persefoni

IBM Envizi scores higher on our rubric for carbon accounting software: 9.4 against 8.9 out of 10; our editors rank them #1 and #6.

IBM Envizi is the better fit for large enterprises needing mature ESG infrastructure. Persefoni is the better fit for teams seeking a free entry point.

  • IBM Envizi fits best

    Large enterprises needing mature ESG infrastructure

  • Persefoni fits best

    Teams seeking a free entry point

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature IBM Envizi 9.4/10 Visit ↗ Persefoni 8.9/10 Visit ↗
At a glance
Editor score 9.4 8.9
Ranking #1 in Carbon Accounting Software #6 in Carbon Accounting Software
Best for Large enterprises needing mature ESG infrastructure Teams seeking a free entry point
Pricing model Paid Free plan + paid
Starting price — —
Free plan Not checked yet ✓ (best)
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Community, Docs Docs
Integrations 10 integrations 6 integrations
Built for Mid-market, Enterprise Small business, Mid-market, Enterprise
Features IBM Envizi 3/3 · Persefoni 3/3
Supplier engagement ✓ ✓
Audit trail ✓ ✓
API access ✓ ✓
Specs
Scope coverage Scope 1-3 Scope 1-3
Data collection Both Both
Emissions factors Both Both
Our review
Pros
  • Covers Scope 1, 2 and 3 emissions with GHG Protocol-aligned methods
  • Automates data ingestion and emissions-factor retrieval across enterprise sources
  • Includes supplier engagement, audit trails, APIs and extensive integrations
  • Free Pro plan includes Scope 1, 2, and 3 accounting
  • Transparent Footprint Ledger and audit history support review workflows
  • Integrations, supplier exchange, and AI anomaly detection broaden data collection
Cons
  • Pricing is quote-based and requires a sales conversation
  • The Emissions API is priced as a separate module
  • Account-based tiers may be more than smaller teams need
  • Advanced analytics and decarbonization planning require the Advanced plan
  • Advanced plan pricing is handled through a demo
  • Pro is positioned for low to medium operational complexity
Our verdict

IBM Envizi is an ESG data management and reporting platform for organizations managing environmental performance, greenhouse gas emissions and sustainability disclosures. It supports Scope 1, 2 and 3 calculation and reporting through a GHG…

Read the review →

Persefoni is a cloud-based carbon accounting and sustainability management platform for organizations measuring, reporting, and reducing greenhouse-gas emissions. It supports Scope 1, 2, and 3 accounting, emissions-factor management,…

Read the review →
  1. IBM EnviziCarbon Accounting Software 9.4Pricing on request
  2. PersefoniCarbon Accounting Software 8.9Free plan

Strengths and trade-offs

  • IBM Envizi — where it wins

    • Covers Scope 1, 2 and 3 emissions with GHG Protocol-aligned methods
    • Automates data ingestion and emissions-factor retrieval across enterprise sources
    • Includes supplier engagement, audit trails, APIs and extensive integrations

    Where it doesn't

    • Pricing is quote-based and requires a sales conversation
    • The Emissions API is priced as a separate module
    • Account-based tiers may be more than smaller teams need
  • Persefoni — where it wins

    • Free Pro plan includes Scope 1, 2, and 3 accounting
    • Transparent Footprint Ledger and audit history support review workflows
    • Integrations, supplier exchange, and AI anomaly detection broaden data collection

    Where it doesn't

    • Advanced analytics and decarbonization planning require the Advanced plan
    • Advanced plan pricing is handled through a demo
    • Pro is positioned for low to medium operational complexity

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update