Software advice
Best AI ESG Reporting Software in 2026
AI ESG reporting software is a platform that collects environmental, social and governance data from sites, suppliers and finance systems, maps it to frameworks such as CSRD with ESRS, GRI or ISSB, and uses machine learning to classify documents, draft disclosures or flag anomalies. It differs from a carbon calculator, which covers emissions only, and from a consultancy, which delivers a report without a system.
Quick answer
Persefoni ranks first because it prints a free Pro tier and states SOC 2 Type II, ISO 27001 and AWS regions. Plan A fits teams that want published AI statements and Irish hosting. Coolset fits Dutch and EU buyers who want ISO 27001 and SOC 2 with supply chain modules.
A sustainability lead picking ESG reporting software in 2026 faces a moving target: the EU has simplified its reporting standards, deadlines have shifted and many companies now report on voluntary frameworks first. Vendors answer with AI assistants and autofill, yet their public pages say little about what the AI reads, where the numbers sit or what a year costs. Few publish a price, so this ranking leans on what a buyer can confirm without a sales call: printed plans, stated certifications, hosting regions and AI data statements. We read vendor pages in November 2026 and ran no disclosure through any product.
The 10 best AI ESG reporting software in 2026, ranked
There is no score. Vendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. How we rank.
| # | Tool | Best for | Free plan | Entry price |
|---|---|---|---|---|
| 1 | Persefoni | Companies that want a free self-service start and an emissions-led route into disclosure reporting | Yes | Free Pro plan, one user |
| 2 | Plan A | European mid-sized companies wanting carbon accounting and reporting with published AI statements and a named hosting location | No | Quoted |
| 3 | Coolset | EU companies that need CSRD, VSME and supply chain rules such as EUDR in one platform | No | Quoted |
| 4 | Dcycle | Manufacturers and logistics firms that want one data layer for reporting, product footprints and customer questionnaires | No | Quoted |
| 5 | Novisto | Global enterprises reporting to several frameworks that want a choice of data region | No | Quoted |
| 6 | IBM Envizi | Large organizations that want finance-grade ESG data management inside an enterprise software estate | No | Quote from Account bundles |
| 7 | Sami | French and Belgian SMEs and mid-sized firms wanting carbon and ESG hubs from one vendor | No | Quoted |
| 8 | Normative | Companies that want carbon accounting with CSRD and CBAM reporting and a named climate adviser | No | Quoted |
| 9 | Sweep | Enterprises that want carbon, supplier data and ESG reporting with an AI assistant on one platform | No | Quoted |
| 10 | Position Green | Companies preparing ESRS reports that want AI to pre-fill disclosures from existing documents | No | Quoted |
- 1
Persefoni
Persefoni ranks first because a buyer can verify the most: a Pro plan stated as free with no trial period, SOC 1 and SOC 2 Type II, ISO 27001 and three named AWS regions. PersefoniAI adds a copilot and anomaly detection. The cost is breadth: its pages stress carbon and California rules, and its agreement licenses de-identified customer data.
Strong on
- Free Pro plan with unlimited assets and historical reporting years, limited to one user
- Security page lists SOC 1 and SOC 2 Type II, ISO 27001 and CSA STAR Level 2
- Data held in AWS Ohio, Ireland and Tokyo at once
Weak on
- Emission factor mapping by natural language is marked as coming soon
- Advanced pricing and paid add-ons need a sales call
Skip it if: Teams that need EU-only data residency or a social and governance disclosure suite built around ESRS. Advanced is by demo. Detailed GHG metrics reports and concierge support are paid add-ons.
- 2
Plan A
Plan A ranks second because its policies say more than most: SOC 2 Type II, AWS in Dublin, and an AI statement naming Gaia Pro, AI Insights and Anomaly Detection. It also holds a TUV mark and B Corp status. The privacy policy lists OpenAI as a sub-processor without reconciling that with its no-retention line, and there is no public price.
Strong on
- States SOC 2 Type II and shows TUV, B Corp and EFRAG friend marks
- Privacy policy names AWS Dublin as the SaaS host
- Says its AI tools do not process, store or retain personal data
Weak on
- OpenAI appears as a sub-processor for AI API services, which the policy does not reconcile
- No pricing is listed on the pages read
Skip it if: Buyers who need a printed price or ISO 27001 stated on the security page. The pages read list no price and offer only a demo or a call.
- 3
Coolset
Coolset ranks third because its home page states ISO 27001, SOC 2, a TUV Rheinland methodology mark and a GDPR claim, and it bundles customer success and an auditor network at no extra cost. It calls itself an AI native platform and offers an MCP connection. Hosting and pricing are not stated on the pages read.
Strong on
- States ISO 27001, SOC 2 and a TUV Rheinland GHG Protocol methodology mark
- Covers CSRD, EU Taxonomy, EUDR, PPWR, EcoVadis and VSME
- Customer success manager, researchers and auditor network are included at no extra cost
Weak on
- No hosting location or price appears on the pages read
- The trust center page loaded without detail, so claims rest on the home page
Skip it if: Teams that want to see a price and a data region before speaking with sales. The page read lists no price, only a contact route.
- 4
Dcycle
Dcycle sits fourth because it states ISO 27001, GDPR and EU hosting, and the privacy policy repeats that data stays in the EEA where feasible. It lists an API, an MCP server and a built-in assistant called Leia. It gives no price, and the policy does not address how Leia processes data or where that happens.
Strong on
- States ISO 27001 and hosting in the EU, backed by the privacy policy
- Includes REST API, CLI and MCP server next to ERP connectors
- Covers CSRD, VSME, EU Taxonomy, SBTi, CDP and EcoVadis
Weak on
- The privacy policy does not address AI-specific data processing
- The vendor reports 2,000 customers, but no price or tier is public
Skip it if: Companies that want an independently audited SOC 2 report named on a public page. The pages read give no price. Customer numbers are the vendor's own claim.
- 5
Novisto
Novisto is fifth because it states more on commercial terms than most quote-only vendors: a flat subscription with unlimited users, a dedicated success manager and analyst, and a choice of storage in the EU, Middle East or North America. Its AI pages name automation and insights but not models or data use, and no security certification appeared on the pages read.
Strong on
- Pricing page says users, data points and outputs are unlimited
- Customers choose data storage across the EU, Middle East and North America
- Includes bulk data import and an AI agent for guidance
Weak on
- AI pages do not say how customer data is used or which models run
- No SOC 2 or ISO certification is named on the pages read
Skip it if: Buyers who need a certification named before they enter a sales process. Subscription with unlimited users, data points and outputs. No dollar figure is printed.
- 6
IBM Envizi
IBM Envizi is sixth because its pricing logic is public, with three Account bundles that scale by data volume and a calculator for an indicative figure. The product page names AI for Scope 3 calculations and audit trails for every change. It states no certifications or hosting on the page read, and the suite is heavy for a mid-sized reporting team.
Strong on
- Pricing model explained by Account bundles, with a calculator for estimates
- Audit trail logs every change, and health checks monitor data completeness
- AI accelerates Scope 3 calculations, with a customer case citing a 45 percent error drop
Weak on
- Certifications and hosting are not stated on the product page read
- Dollar prices appear only after a scoped quote
Skip it if: Small and mid-sized teams that need a quick start without a scoped enterprise project. Bundles run Essentials up to 1,000 Accounts, Standard up to 5,000 and Premium up to 15,000 or more.
- 7
Sami
Sami ranks seventh because its home page claims ISO 27001 and GHG Protocol certification, over 300,000 emission factors and two modules, carbon and ESG. The pages describe no AI features beyond a testimonial headline, the trust center loaded without detail, and the legal notice names Amazon as host. It is a plain tool for a French-speaking market.
Strong on
- States ISO 27001 and GHG Protocol certification on the home page
- Carbon hub and ESG hub cover double materiality, gap analysis and reporting
- Legal notice names the company and the hosting provider
Weak on
- No AI features are described on the pages read
- Site and product text are mainly in French, and the price is by quote
Skip it if: Buyers who want documented AI drafting or an English-language product tour. The page tells buyers to contact Sami for a tailored quote.
- 8
Normative
Normative ranks eighth because its public pages hold no security statement, hosting region or price. What it does state is specific: a TUV SUD evaluation of its calculation engine, 349,000 emission factors and AI-driven categorization. A Greenly tie-up announced on the page also raises a question about product direction that a buyer should ask about before signing.
Strong on
- Calculation engine evaluated by TUV SUD against ISO/IEC 25051 and the GHG Protocol
- Automated ingestion with AI categorization, factor matching and anomaly detection
- A named Climate Strategy Advisor comes with every account
Weak on
- No security page or hosting claim appeared on the pages read
- Consultancy services are billed separately, with a four-hour minimum on Data+
Skip it if: Buyers who need security certifications and a data region confirmed in writing first. Essential and Premium plans exist, but the page offers only a quote form.
- 9
Sweep
Sweep sits last in this list because its public pages gave the least to verify: no price, no stated hosting, no certification and no AI policy. It does name an assistant called Sweepy and AI-assisted supplier data collection, and analyst recognition from IDC and Verdantix in 2026. Those are third-party opinions about the market, not a trust statement.
Strong on
- Sweepy assistant and AI-assisted supplier data collection are described
- Covers CSRD, ISSB, GRI, SFDR, SASB, PCAF and CDP
- Operates its site from the European Union, per its terms
Weak on
- Trust center loaded without certification or hosting detail
- No price and no AI data policy on the pages read
Skip it if: Buyers who need hosting, certification and AI data terms visible before a demo. The home page offers a demo and links a Starter package without a figure.
- 10
Position Green ranks last because its pages show the least to verify: no price, no module list, no hosting region and no certification, and the AI terms page was not readable. It does describe AutoReporting, which the vendor says automates up to 30% of ESRS reporting, and an Emissions Mapper for Scope 3 spend data. A Norwegian vendor with a modular design, worth a demo once the data terms are in writing.
Strong on
- AutoReporting pre-fills ESRS disclosures from existing documents, per the vendor
- Emissions Mapper assigns emission factors to spend lines for Scope 3 Category 1
- Framework modules for ESRS, VSME, EU taxonomy, SFDR and GRI
Weak on
- No price, trial or published module list; a demo is the only entry
- Hosting region, certifications and AI data terms are not stated on the pages read
Skip it if: Buyers who need a rate card, a hosting region and AI data terms in writing before booking a demo. No price is published; the homepage and AI page route visitors to a demo request.
How these AI ESG reporting software were judged
What can the AI in ESG reporting software really do?
The AI in this category mostly speeds up data intake and first drafts, not judgment calls. Novisto lists data validation and document analysis. Coolset describes autofilling disclosures from existing documents and an MCP connection to outside AI tools. Dcycle names an assistant called Leia, Plan A lists Gaia Pro and anomaly detection, and Persefoni lists a copilot plus anomaly detection while marking emission factor mapping as coming soon. IBM claims one customer cut Scope 3 categorization errors by 45 percent. Treat that as a vendor case. Ask each vendor to draft one ESRS datapoint from your own policy document and show the source it cited.
How much does ESG reporting software cost?
Almost nobody prints a price. As of November 2026, Persefoni states that its Pro plan is free with one user and no trial period, and Advanced is by demo. IBM Envizi prices by Account bundle: Essentials up to 1,000 Accounts, Standard up to 5,000, Premium above that. Novisto says its price does not depend on users, data points or outputs. Coolset says customer success, researchers and an auditor network come at no extra cost. Sweep, Plan A, Normative, Sami and Dcycle ask for a call. Ask for services, add-on reports and extra entities to be listed separately.
Where is my ESG data stored, and who audits the vendor?
ESG data includes supplier names, emissions, payroll-linked social metrics and draft disclosures, so ask who holds it. Persefoni states SOC 1 and SOC 2 Type II, ISO 27001 and storage in AWS Ohio, Ireland and Tokyo. Plan A states SOC 2 Type II, with AWS in Dublin named in its privacy policy. Coolset lists ISO 27001 and SOC 2. Dcycle states ISO 27001 and EU hosting. Novisto lets customers pick a region across the EU, Middle East and North America. Plan A's policy says its AI tools do not retain personal data, yet it lists OpenAI as a sub-processor.
How hard is it to leave an ESG reporting platform?
Leaving costs more in audit history than in raw data. A disclosure that an assurance provider reviewed is tied to the platform's trail of who entered or changed each number, and that trail rarely exports in a form an auditor accepts elsewhere. Persefoni's subscription agreement says the vendor may use de-identified data derived from customer materials, which is worth reading before you sign. Coolset bundles an auditor network for limited assurance, which can deepen reliance. Before committing, request the export format for datapoints, evidence files and change logs, and the retention period after cancellation.
Which ESG reporting platform fits a mid-sized company or a group?
Fit follows the framework you must report under and the size of your data team. A European mid-sized company facing CSRD or VSME looks at Coolset, Plan A, Sami or Dcycle. A group with sites on several continents and a need to choose a data region looks at Novisto. An emissions-heavy business with a finance team looks at Persefoni, Sweep or Normative. A very large organization that already runs IBM tooling looks at Envizi. Ask whether the sales team will run a pilot on one entity before you commit to the full group.
How to choose an AI ESG reporting platform in three steps
- Name the frameworks and the first reporting year. List every framework you owe, such as ESRS, VSME, GRI, ISSB or CDP, with the first year each one applies and who will review it. Then compare against what each vendor names. Coolset lists CSRD, EU Taxonomy, EcoVadis and VSME, Persefoni lists SB 253 and SB 261 pages for California, and Dcycle lists CSRD, VSME, SBTi and CDP. A product that covers your framework only in a roadmap slide is a risk, so ask which modules are live today and for a customer using each.
- Run one disclosure through the AI during the demo. Bring a real policy document, a utility bill export and an open question from last year's report. Ask the vendor to map them to the datapoints and show which source supports each answer. Claims of an evidence trail are easy to make and hard to show, so insist on seeing the cited source, the draft text and the reviewer step. If the AI cannot show where a number came from, an auditor will not accept it either. Note how long the vendor needs to finish the task.
- Get cost, services and exit terms in one quote. Ask for the platform fee, the number of entities and users, any services or advisory hours, and what happens at renewal. Novisto states unlimited users and data points, IBM uses Account bundles, and Persefoni sells paid add-ons such as detailed GHG metrics reports and concierge support. Compare the three-year total, not the first-year discount. Ask for the cancellation terms and for the export of datapoints and evidence in writing, before the order form is signed, and have your legal team read the data licence clause.
Frequently asked questions
What is the best AI ESG reporting software in 2026?
Persefoni ranks first here because it prints a free Pro plan and states SOC 2 Type II, ISO 27001 and AWS regions. Plan A suits teams that want published AI statements and Irish hosting, and Coolset suits EU buyers who want ISO 27001 plus supply chain modules. None replaces a pilot on your own data.
Is there free ESG reporting software?
Persefoni states that its Pro plan is free, with one user, unlimited assets and historical reporting years, and no trial period or hidden fees. Detailed GHG metrics reports and concierge support cost extra. Other vendors read for this page ask for a demo before giving a price, so free options are rare.
Do ESG platforms use my data to train AI models?
Public pages rarely say. Plan A's policy states its AI tools do not process, store or retain personal data, while listing OpenAI as a sub-processor. Persefoni's agreement licenses customer materials for operating and improving its services and covers de-identified data. For the other vendors, the policy was not checked for this, so ask in writing.
Does ESG software replace a sustainability consultant?
No. The software collects data, applies frameworks and keeps an audit trail, but someone still decides materiality, targets and wording. Coolset says it provides a customer success manager and researchers at no extra cost, while Novisto states a dedicated ESG analyst. Check what is included and what is billed as services.
What is the difference between carbon accounting and ESG reporting software?
Carbon accounting software calculates greenhouse gas emissions across Scopes 1, 2 and 3. ESG reporting software goes wider, covering social and governance metrics, materiality assessment and framework disclosures such as ESRS. Sweep, Persefoni and Normative begin with carbon, while Coolset, Novisto and Dcycle describe broader frameworks, so check which side your work sits on.
Which ESG reporting tools are European?
From pages we opened, Sweep and Sami are French, Plan A is German, Dcycle is Spanish, Coolset is Dutch, and Normative is Swedish. Persefoni and IBM are American and Novisto is Canadian. A European address does not settle hosting, so check regions and sub-processors, such as Plan A's AWS location in Dublin.
Can I choose where my ESG data is hosted?
Sometimes. Novisto states that customers can choose storage across the EU, Middle East and North America, and Persefoni states it stores data in AWS Ohio, Ireland and Tokyo at the same time. Dcycle states EU hosting. Sweep, Normative and IBM did not state regions on the pages we read.
How long does it take to start reporting in ESG software?
The pages read give no firm timelines, so the answer depends on your data. Systems with ready integrations load utility, finance and supplier files faster than manual spreadsheets. Ask each vendor for a written onboarding plan with a first-report date, the data you must provide and who at your company needs to sign off.