Data as of Sep 25, 2026 · Based on 28 AI responses · Shares cover the last 30 days · See how Parse measures this
Carbon Accounting Software Platforms
55 brands
| #30d | Brand | What AI says | Named in |
|---|---|---|---|
| 1 |  Greenhouse Gas ProtocolThe foundational standard, frequently cited as the core methodology for any assessment. | The foundational standard, frequently cited as the core methodology for any assessment. | 50% |
| 2 |  U.S. Environmental Protection Agency (EPA) | 39% | |
| 3 −2 down |  WatershedA fast-rising competitor known for supply chain management and decarbonization modeling. | A fast-rising competitor known for supply chain management and decarbonization modeling. | 32% |
| 4 −1 down |  PersefoniThe market leader, framed as an enterprise-grade, audit-ready reporting solution. | The market leader, framed as an enterprise-grade, audit-ready reporting solution. | 29% |
| 5 +2 up |  IBM Envizi⌐ IBMPositioned for large enterprises, highlighting data management and forecasting capabilities. | Positioned for large enterprises, highlighting data management and forecasting capabilities. | 25% |
| 6 |  Science Based Targets initiative | 21% | |
| 7 |  International Energy Agency (IEA) | 14% | |
| 8 |  LEAP Legal Software | 11% | |
| 9 |  Sinai Technologies | 11% | |
| 10 |  GreenlyA newer entrant gaining traction as a user-friendly, all-in-one platform. | A newer entrant gaining traction as a user-friendly, all-in-one platform. | 11% |
| 11 |  Cozero | 11% | |
| 12 |  Net Zero Cloud⌐ Salesforce | 11% | |
| 13 |  Energy Policy Simulator (EPS)⌐ Rocky Mountain Institute | 7% | |
| 14 |  DEFRA | 7% | |
| 15 |  Intergovernmental Panel on Climate Change (IPCC) | 7% | |
| 16 |  S&P Global Carbon Scenarios⌐ S&P Global | 7% | |
| 17 |  Microsoft | 7% | |
| 18 | Microsoft Sustainability Manager⌐ Microsoft | 7% | |
| 19 | Emissions & Generation Resource Integrated Database (eGRID)⌐ U.S. Environmental Protection Agency (EPA) | 7% | |
| 20 |  EnergyPLAN | 7% | |
| 21 |  CDP (Carbon Disclosure Project) | 7% | |
| 22 |  HOMER Energy | 7% | |
| 23 |  Switch Power System Planning Model | 7% | |
| 24 |  CDP | 7% | |
| 25 |  Global Energy Transition Tracker | 4% |
ParseChatGPT + Google AIParse
https://parse.gl
Measured across ChatGPT & Google AIAcross 28 AI responses, Greenhouse Gas Protocol is mentioned most, named in 50% of them, followed by U.S. Environmental Protection Agency (EPA) (39%) and Watershed (32%).
Parse ranks brands by Named in — the share of answers naming each brand — across 28 AI responses to this market's buyer questions over the last 30 days. Answers are collected daily and the ranking is re-measured on the same 30-day window.
Brands enter the ranking when AI answers mention them. Parse collects answers daily and publishes the re-measured set weekly, so new brands appear as AI starts recommending them.
Data as of Sep 25, 2026 · Based on 28 AI responses · Shares cover the last 30 days · See how Parse measures this
Carbon Accounting Software Platforms
55 brands
| #30d | Brand | What AI says | Named in |
|---|---|---|---|
| 1 | Greenhouse Gas ProtocolThe foundational standard, frequently cited as the core methodology for any assessment. | The foundational standard, frequently cited as the core methodology for any assessment. | 50% |
| 2 | U.S. Environmental Protection Agency (EPA) | 39% | |
| 3 −2 down | WatershedA fast-rising competitor known for supply chain management and decarbonization modeling. | A fast-rising competitor known for supply chain management and decarbonization modeling. | 32% |
| 4 −1 down | PersefoniThe market leader, framed as an enterprise-grade, audit-ready reporting solution. | The market leader, framed as an enterprise-grade, audit-ready reporting solution. | 29% |
| 5 +2 up | IBM Envizi⌐ IBMPositioned for large enterprises, highlighting data management and forecasting capabilities. | Positioned for large enterprises, highlighting data management and forecasting capabilities. | 25% |
| 6 | Science Based Targets initiative | 21% | |
| 7 | International Energy Agency (IEA) | 14% | |
| 8 | LEAP Legal Software | 11% | |
| 9 | Sinai Technologies | 11% | |
| 10 | GreenlyA newer entrant gaining traction as a user-friendly, all-in-one platform. | A newer entrant gaining traction as a user-friendly, all-in-one platform. | 11% |
| 11 | Cozero | 11% | |
| 12 | Net Zero Cloud⌐ Salesforce | 11% | |
| 13 | Energy Policy Simulator (EPS)⌐ Rocky Mountain Institute | 7% | |
| 14 | DEFRA | 7% | |
| 15 | Intergovernmental Panel on Climate Change (IPCC) | 7% | |
| 16 | S&P Global Carbon Scenarios⌐ S&P Global | 7% | |
| 17 | Microsoft | 7% | |
| 18 | Microsoft Sustainability Manager⌐ Microsoft | 7% | |
| 19 | Emissions & Generation Resource Integrated Database (eGRID)⌐ U.S. Environmental Protection Agency (EPA) | 7% | |
| 20 | EnergyPLAN | 7% | |
| 21 | CDP (Carbon Disclosure Project) | 7% | |
| 22 | HOMER Energy | 7% | |
| 23 | Switch Power System Planning Model | 7% | |
| 24 | CDP | 7% | |
| 25 | Global Energy Transition Tracker | 4% |
Greenhouse Gas ProtocolInitially, AI responses listed a mix of consultancies and software tools. By December 2025, answers consistently began framing the question around methodology, establishing the 
Persefoni
Greenhouse Gas ProtocolWatershed
Envana
Climatiq
+207 more
ParseChatGPT + Google AIParse
https://parse.gl
Measured across ChatGPT & Google AIAcross 28 AI responses, Greenhouse Gas Protocol is mentioned most, named in 50% of them, followed by U.S. Environmental Protection Agency (EPA) (39%) and Watershed (32%).
Parse ranks brands by Named in — the share of answers naming each brand — across 28 AI responses to this market's buyer questions over the last 30 days. Answers are collected daily and the ranking is re-measured on the same 30-day window.
Brands enter the ranking when AI answers mention them. Parse collects answers daily and publishes the re-measured set weekly, so new brands appear as AI starts recommending them.
Greenhouse Gas ProtocolInitially, AI responses listed a mix of consultancies and software tools. By December 2025, answers consistently began framing the question around methodology, establishing the
Persefoni
Greenhouse Gas ProtocolWatershedEnvanaClimatiq+207 more
