# ESG and carbon reporting for enterprise buyers: what AI models recommend, September 2026

Gane Index, September 2026 Edition. Asked as "ESG reporting software" and as "carbon accounting platform", six framings each, to twelve models with search on, on behalf of an enterprise B2B company. Page: https://www.gane.ai/index/finance/corporate/esg-and-carbon-reporting/2026-09/enterprise

This is the permanent record of the September 2026 Edition, published September 17, 2026 and superseded since. The current standing: https://www.gane.ai/index/finance/corporate/esg-and-carbon-reporting/enterprise/index.md

**Standing:** Workiva ESG leads with 38% of first choices; verdict contested. 50 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Workiva ESG](https://www.gane.ai/index/finance/vendors/workiva-esg/index.md) | 38% | 5% | 42 |
| 2 | [Watershed](https://www.gane.ai/index/finance/vendors/watershed/index.md) | 20% | 9% | 33 |
| 3 | [IBM Envizi](https://www.gane.ai/index/finance/vendors/ibm-envizi/index.md) | 10% | 21% | 38 |
| 4 | [Sweep](https://www.gane.ai/index/finance/vendors/sweep/index.md) | 6% | 5% | 19 |
| 5 | [Persefoni](https://www.gane.ai/index/finance/vendors/persefoni/index.md) | 4% | 14% | 28 |
| 7 | [Normative](https://www.gane.ai/index/finance/vendors/normative/index.md) | 2% | 9% | 11 |
| 9 | [Enablon](https://www.gane.ai/index/finance/vendors/enablon/index.md) | 2% | 27% | 11 |
| 10 | [Salesforce Net Zero Cloud](https://www.gane.ai/index/finance/vendors/salesforce-net-zero-cloud/index.md) | 2% | 33% | 18 |
| 16 | [Novisto](https://www.gane.ai/index/finance/vendors/novisto/index.md) | 0% | 10% | 20 |
| 17 | [Diligent ESG](https://www.gane.ai/index/finance/vendors/diligent-esg/index.md) | 0% | 0% | 15 |
| 18 | [SpheraCloud Corporate Sustainability](https://www.gane.ai/index/finance/vendors/spheracloud-corporate-sustainability/index.md) | 0% | 21% | 19 |
| 29 | [SAP Sustainability Control Tower](https://www.gane.ai/index/finance/vendors/sap-sustainability-control-tower/index.md) | 0% | 43% | 21 |

Rank is by share of first choices among all 62 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Workiva ESG; alternatives Diligent ESG, IBM Envizi, Watershed
- GPT-5.4 mini: Workiva ESG; alternatives Diligent ESG, IBM Envizi
- Gemini 3.5 Flash: Watershed, Workiva ESG; alternatives IBM Envizi, SAP Sustainability Control Tower, Salesforce Net Zero Cloud, SpheraCloud Corporate Sustainability
- Perplexity Sonar: Workiva ESG; alternatives Benevity, Diligent ESG, IBM Envizi, Pulsora
- Grok 4.20: Workiva ESG; alternatives IBM Envizi
- Mistral Small: Sweep, Workiva ESG; alternatives OneTrust, Riskonnect
- DeepSeek V4 Flash: Workiva ESG; alternatives Diligent ESG, IBM Envizi, Normative, Watershed
- Llama 4 Maverick: Workiva ESG; alternatives ESG:ONE, Emission Twin, Guideflow, Sustaenia
- Qwen 3.7 Flash: Workiva ESG; alternatives Cority, Diligent One Platform, IBM Envizi, Novisto
- Kimi K2: Pulsora, Watershed, Workiva ESG; alternatives Novisto, Persefoni, SAP Sustainability Control Tower, SpheraCloud Corporate Sustainability
- GLM 4.7 FlashX: Workiva ESG; alternatives Coupa, Enablon, Novisto, Refinitiv/和讯库
- MiniMax M2.5: Persefoni; alternatives Coolset, Enablon, Microsoft Cloud for Sustainability, SpheraCloud Corporate Sustainability

## Sources the answers cite

66 of 72 answers came back with a source list, from 12 of 12 models. Sites named in the most answers:

- guideflow.com: 40 answers, 43 citations
- gartner.com: 34 answers, 49 citations
- coolset.com: 26 answers, 26 citations
- esg-one.co: 25 answers, 27 citations
- pulsora.com: 25 answers, 26 citations
- horizonesg.global: 17 answers, 22 citations
- onestopesg.com: 17 answers, 20 citations
- sustaenia.com: 17 answers, 17 citations

Pages named in the most answers:

- https://guideflow.com/blog/esg-reporting-software (38 answers)
- https://gartner.com/reviews/market/esg-management-and-reporting-software (29 answers)
- https://coolset.com/academy/best-esg-reporting-software-tools (24 answers)
- https://pulsora.com/blog/best-esg-reporting-software (23 answers)
- https://esg-one.co/blog/esg-reporting-software-comparison (21 answers)
- https://horizonesg.global/best-esg-reporting-software (17 answers)
- https://bigeasymagazine.com/2026/08/26/7-best-esg-reporting-and-disclosure-software-ranked-and-reviewed (16 answers)
- https://emissiontwin.com/blog/best-esg-reporting-software (15 answers)
- https://sustaenia.com/learn/the-best-esg-tools (12 answers)
- https://aibusinessgeek.com/articles/ai-esg-reporting-software-2026 (11 answers)

## Warned against

- SAP Sustainability Control Tower: 9 of 21 labels negative. "SAP Sustainability Control Tower (per active user/mo) become unpredictable/costly at thousands of users" (Grok 4.20, budget prompt)
- Salesforce Net Zero Cloud: 6 of 18 labels negative. "Certain large tech firms (e.g., Salesforce, IBM) are often avoided by consultants due to perceived inferiority compared to specialized ESG vendors." (Mistral Small, negative prompt)
- IBM Envizi: 8 of 38 labels negative. "steering clear of solutions from big tech firms like IBM, Salesforce, and others, as they may be inferior" (Llama 4 Maverick, negative prompt)
- Oracle: 4 of 4 labels negative. "many specialized ESG consultants advise caution when relying on their core ERPs or CRMs for primary ESG reporting" (Qwen 3.7 Flash, negative prompt)

## Record

- Method: https://www.gane.ai/index/finance/methodology
- License: CC BY 4.0. Cite as Gane Index, September 2026 Edition, www.gane.ai/index/finance.