Top 30 ESG & Carbon Reporting Software (2026): Who Practices What They Sell?

At a glance

Key findings

1. 18 of 30 vendors (60%) publish their own sustainability report. 5 more disclose only partially (a data page, target or certification), and 7 have no public report we could find: Gravity, carbmee, osapiens, Novisto, Locus Technologies, MESA Group and Pulsora.
2. 7 of the 8 Verdantix Carbon GQ 2026 Leaders publish a report. The exception is IBM (Envizi), which publishes a detailed, partly assured 2025 web data summary but no current standalone report, so we rate it Partial.
3. Disclosure is stronger among the vendors Verdantix evaluated in its 2026 Carbon GQ: 16 of 20 publish a report, compared with 2 of 10 of the additional vendors drawn from other analyst lists.
4. Not every “Yes” is a product-level report. For 6 vendors (Schneider Electric, UL Solutions, Wolters Kluwer, SAP, Salesforce and Diligent), the software is covered only through a corporate group report, and Quentic's report is issued by its parent, AMCS Group.
5. Supplier programmes are the most common quantified goal beyond carbon: 6 of 30 vendors have one, and most aim at suppliers' emissions. AMCS (Quentic's parent) and Sphera want suppliers to set science-based targets, Schneider Electric asked its top 1,000 suppliers to halve operational CO2, and SAP targets a ~90% cut in procurement-related emissions by 2030. Supplier engagement, supplier data and Scope 3 tools have a ready buyer here.
6. The smaller vendors that do have targets mostly took the light route: 4 of the 13 SBTi-validated vendors (Persefoni, Plan A, Sweep and Worldfavor) used SBTi's streamlined SME route, and 10 vendors have no carbon reduction target we could find. Target-setting and SBTi submission support is an open door for the rest.
7. Only 4 of 30 have a quantified energy target. Several lean on certificates instead: Tango (carbon neutral in 2025) and Workiva (operational net zero) both rely on RECs plus offsets or carbon credits, and UL Solutions and Wolters Kluwer buy RECs or guarantees of origin for their offices. Providers of renewable PPAs, efficiency and higher-quality energy claims can pitch the move beyond certificates.
8. Water is the biggest gap: 22 of 30 say nothing we could find about water, and only 4 (IBM, Salesforce, Schneider Electric and AMCS for Quentic) set a quantified water goal. SAP and Wolters Kluwer assessed water as not material. Only 3 vendors (IBM, Schneider Electric and AMCS for Quentic) have quantified targets in all four areas: energy, waste, water and procurement.

The data

Methodology & sources

How vendors were chosen: the Source list column shows how each vendor got on the list. The spine is the Verdantix Green Quadrant: Enterprise Carbon Management Software (2026); its 21 vendors make up 20 rows (Greenly and Normative, which merged in Sep 2026, share one row). The other 10 come from the Verdantix ESG Reporting Green Quadrant 2025 press release (most advanced 15), FeaturedCustomers Fall 2025 Carbon Accounting (Market Leader / Top Performer) and Verdantix Smart Innovators ESG Reporting 2025. Verdantix does not rank vendors inside a quadrant, and we don't either: the list is alphabetical.

Own report: on Oct 8, 2026 we searched each vendor's website and the web for its own sustainability, ESG, impact or climate report, and checked the SBTi target dashboard and the B Corp directory. We opened and read every report we could download. We never inferred a “Yes”: unclear cases are marked Partial or No. CDP responses were not checked.

Climate goals: on Oct 11, 2026 we read each vendor's latest own report (or, where there is none, its sustainability web page or net-zero announcement) and the SBTi target dashboard (export dated Oct 8, 2026). We tag only goals the vendor states itself or SBTi lists; page numbers are in the Goal evidence column of the full download. Where a report comes from a parent company, we use the parent's goals only if the report names the product company as covered.

Vendor selection draws on Verdantix, Green Quadrant: Enterprise Carbon Management Software (2026), read via free vendor reprints. Report page (verdantix.com)

Own report: how we rated it

Yes

A standalone sustainability, ESG, impact or climate report, or a dedicated sustainability section in the annual report.

Partial

Only an emissions page, net-zero/SBTi target, B Corp profile or short data page.

No public report found

Nothing beyond marketing copy, product pages or market studies.

Climate goal tags

Net zero target: Yes

The vendor states a net-zero target with a year (the year is in Net zero year). Not found = no net-zero target we could find; No = the vendor says it has decided not to set one.

SBTi validated

The carbon target appears as validated on the SBTi target dashboard (near-term, long-term or SME route).

Set, not SBTi validated

The vendor states a quantified carbon reduction target, but SBTi has not validated it.

Commitment only

The vendor has committed to set a target (for example an SBTi commitment) but has not set one yet.

None found

No carbon reduction target or commitment we could find.

Target

Energy, Waste, Water or Sustainable procurement: a quantified goal (a number and a date or baseline).

Disclosed

The vendor reports data or programmes for the area, but sets no quantified target.

Not found

Nothing on the area in the vendor's report or pages that we could find.

Sources

• Verdantix, Green Quadrant: Enterprise Carbon Management Software (2026) · Report page (source credit)
• Verdantix, Green Quadrant: Enterprise Carbon Management Software (2026) · Free reprint via Sweep
• Verdantix, Green Quadrant: Enterprise Carbon Management Software (2026) · Free reprint via Watershed
• Verdantix press release, Green Quadrant: ESG & Sustainability Reporting Software 2025 · 27 Jun 2025
• FeaturedCustomers, Fall 2025 Carbon Accounting Software Customer Success Report · Press release, 2 Dec 2025
• Verdantix, Smart Innovators: ESG & Sustainability Reporting and Data Management Software (2025) · Free reprint via Sweep
• Sia Partners, Carbon Accounting Management Platform Benchmark 2024–2025 · Supporting evidence only
• Science Based Targets initiative, target dashboard export · Downloaded 8 Oct 2026; used for own-report checks and goal tags
• B Lab, Find a B Corp directory

Caveats

• IBM is rated Partial on Own report: it publishes a detailed, partly assured 2025 web data summary but no current standalone report.
• Only the 8 Leaders are named in the Verdantix Carbon GQ 2026 text; all other quadrant placements were read from the report's Figure 6. carbmee and osapiens straddle a boundary and are labelled borderline.
• Greenly and Normative merged in Sep 2026 and share one row, counted under Greenly's Innovators placement. Its net-zero year (2030) is Normative's, set before the merger.
• IBM's net zero covers operations only (Scope 1 and market-based Scope 2) and is not SBTi validated. Workiva's 2040 value-chain net zero is its own statement; SBTi validated its near-term targets only. Tango says its targets are science-based, but it is not on the SBTi dashboard, so we tag it Set, not SBTi validated.
• Cority's report is behind a form, so its goal tags come from the landing page and press release.
• CDP responses were not checked for any vendor.

Related reading

• BlogWhy the CSO Isn't Always Your Buyer
• BlogDecoding ESG Signals: When Does a Commitment Become a Budget?

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