Best ESG Reporting Software in 2026

The best ESG reporting software depends on what you actually need to report. Full ESG platforms like Workiva, IBM Envizi, and Salesforce Net Zero Cloud cover environmental, social, and governance data for large enterprises.

If your priority is the Environmental pillar (specifically carbon and GHG emissions), Seedling gives companies of up to 2,000 employees a faster, more focused route to accurate, compliance-ready carbon data, without the enterprise overhead.

Some companies searching for ESG reporting software may actually just be looking to solve a carbon problem. Before you buy a platform that covers 1,100 data points across three pillars, get clear on what you genuinely need to report, to whom, and by when.

ESG covers three distinct areas: Environmental (your business's impact on the planet, including GHG emissions and carbon footprint), Social (labour practices, DEI, and supplier relationships), and Governance (board structure, ethics, and how the company is run). Not every business needs software that covers all three. This guide separates the tools by what they are actually built for.

What Is ESG Reporting Software?

ESG reporting software is a digital platform that helps businesses collect, manage, and disclose their environmental, social, and governance performance data. These platforms support data collection, audit readiness, and informed decision-making.

ESG reporting is the disclosure of a company's environmental, social, and governance performance against defined benchmarks and targets. It gives stakeholders and investors the transparency to assess long-term value and risks.

The category is growing fast. The global ESG reporting software market was valued at USD 1.32 billion in 2025 and is projected to grow from USD 1.6 billion in 2026 to USD 7.36 billion by 2034, at a CAGR of 21.02%.

That growth is being driven by regulatory pressure, investor scrutiny, and the sheer complexity of managing sustainability data manually.

One important distinction before you choose: most ESG platforms are built to handle all three pillars. If your immediate need is carbon measurement and reduction (the Environmental pillar specifically), a dedicated carbon management platform will get you accurate, compliant data faster than a broad ESG suite.

The 7 Best ESG Reporting Software Tools in 2026

1. Seedling: Best for Carbon-Focused Environmental Reporting (E Only)

Why we picked it: Seedling is not a full ESG platform. It covers the Environmental pillar (specifically carbon accounting and GHG management) and does that with a depth and accuracy that most broad ESG tools cannot match at the same price point. If you need to measure, reduce, and report your carbon footprint to a compliance-grade standard, Seedling is built for exactly that.

Best for: Companies of up to 2,000 employees where one person (an Ops Lead, HSE Manager, or lean sustainability team) owns carbon reporting alongside other responsibilities.

Key features:

Full Scope 1, 2, and 3 measurement aligned with the GHG Protocol
Accounting integrations (Xero, Sage, QuickBooks) plus built-in employee and supplier surveys to speed up data capture
A dedicated carbon expert included as standard (not an optional add-on)
Compliance-ready outputs for PPN 006, B Corp, SECR, EcoVadis, ISO 14064, SBTi, and Net Zero Plans
Setup typically completed in 2-4 weeks, with under 1 day of your time overall
Clear subscription pricing with no day-rate scope creep

What it does not cover: Social and Governance pillars. If you need DEI data, board governance disclosures, or full CSRD compliance across all ESRS data points, Seedling is not the right tool. For the E, it is hard to beat.

2. Workiva: Best for Integrated Financial and ESG Reporting

Why we picked it: Workiva has become a go-to platform for integrated financial, risk, and ESG reporting, valued for its ability to connect directly into ERP, HRIS, and other systems. Its Chains technology automates data collection and calculations (including CO2e), while templates map information to frameworks such as GRI, SASB, and TCFD.

Best for: Large enterprises that need ESG data to sit alongside financial reporting with full audit trails.

Key features:

Customisable dashboards and an ESG Explorer for framework navigation (GRI, SASB, TCFD, CSRD), a Workiva Carbon module for Scope 1, 2, and 3 emissions management, and a unified platform for ESG, audit, risk, and financial reporting.
Real-time collaboration, data integration, and validation features to improve data accuracy and transparency in ESG reporting.

What it does not cover: Workiva is enterprise-grade and priced accordingly. It is not built for companies that want a fast, low-overhead route to carbon compliance. Expect a significant implementation commitment.

3. IBM Envizi ESG Suite: Best for Enterprise-Scale Data Management

Why we picked it: IBM's Envizi ESG Suite consolidates data from utilities, vendors, and internal systems to automate emissions calculations and multi-framework reporting. A rich library of emission factors and support for multiple disclosure standards make Envizi attractive to organisations seeking a single system of record for ESG metrics.

Best for: Large enterprises with complex, multi-source data environments that need advanced analytics and regulatory compliance across multiple frameworks.

Key features:

Automates data validation, provides advanced analytics, and generates compliant reports for standards like GRI, SASB, TCFD, and CSRD.
Supports compliance with standards including CSRD, GRI, CDP, TCFD, and SFDR, integrates with ERP systems, IoT sensors, and other data sources, and provides advanced analytics, scenario modelling, and assurance-ready reporting via IBM Watson AI.

Limitations: Enterprise-level pricing can be prohibitive for mid-sized organisations, and the platform has a steep learning curve with complex initial setup requiring technical expertise.

4. Salesforce Net Zero Cloud: Best for Salesforce-Ecosystem Businesses

Why we picked it: Salesforce Net Zero Cloud gives organisations using the Salesforce ecosystem an integrated hub for carbon accounting, ESG KPIs, and supplier engagement. Executive dashboards track emissions trends, energy intensity, waste, and water, while AI helps flag data gaps, estimate missing values, and support emissions forecasting toward net zero goals.

Best for: Businesses already running Salesforce that want ESG data to sit within their existing CRM and operational infrastructure.

Key features:

Scope 1, 2, and 3 emissions tracking with automated data collection
Strong integration capabilities with Salesforce products.

Limitations: Requires Salesforce expertise for optimal use. Higher cost for non-Salesforce users. Not the right fit if your business does not already operate on the Salesforce platform.

5. Microsoft Cloud for Sustainability: Best for Microsoft-Ecosystem Enterprises

Why we picked it: Microsoft Cloud for Sustainability builds on Azure, Dynamics 365, and the wider Microsoft 365 estate to give organisations a single data estate for carbon, water, and waste across Scope 1, 2, and all 15 Scope 3 categories. Its Sustainability Manager offers prebuilt templates aligned to emerging regulations such as the EU's CSRD.

Best for: Enterprises already invested in the Microsoft stack that want sustainability data integrated into their existing workflows.

Key features:

Coverage across all 15 Scope 3 categories
Prebuilt CSRD-aligned reporting templates
Native integration with Azure, Dynamics 365, and Power BI

Limitations: Like Salesforce Net Zero Cloud, the value proposition is strongest for organisations already using the Microsoft ecosystem. Standalone adoption involves significant setup.

6. Sweep: Best for Growth-Stage Companies Focused on Climate Strategy

Why we picked it: Sweep suits growth-stage and multinational companies seeking modern UX and carbon-forward reporting tools, and appeals to organisations prioritising climate strategy with expanding ESG needs.

Best for: Scaling businesses that need to report on carbon and are beginning to build out broader ESG capabilities.

Key features:

Collaborative ESG platform for data collection, double materiality assessments, and regulatory reporting.
Carbon accounting across Scopes 1, 2, and 3 with decarbonisation planning tools
CSRD-aligned reporting support

Limitations: Better suited to organisations with in-house sustainability resources. Less suited to businesses where one person manages carbon alongside other responsibilities.

7. Greenly: Best for Carbon Measurement with Broad Industry Coverage

Why we picked it: Greenly's platform enables companies, regardless of their size or sector, to measure their CO2 emissions as a starting point for climate action.

Best for: Companies that want carbon measurement across a range of industries, with a relatively accessible user experience.

Key features:

Scope 1, 2, and 3 emissions measurement
Real-time CO2 monitoring and reduction trajectory tools
Multiple pricing tiers based on industry and employee count

Limitations: Features and capabilities have been removed from the platform without customer communication, and Greenly does not list integrations on their website. Expert support and methodology transparency vary by plan tier. You can view how Seedling compares to Greenly here.

Do You Need Full ESG Software, or Just the E?

This is the most important question to answer before you commit to any platform.

Full ESG software covers a broad range: environmental considerations such as GHG emissions, water, waste, and recycling; and social considerations such as diversity, equity and inclusion, supplier sustainability, philanthropy, and volunteerism. That scope is appropriate if you are a large enterprise managing CSRD compliance, investor ESG disclosures, or multi-pillar regulatory obligations.

For most businesses with up to 2,000 employees, the immediate priority is the Environmental pillar: measuring carbon accurately, reducing it meaningfully, and producing outputs that satisfy stakeholders, procurement requirements, and frameworks like B Corp, PPN 006, SECR, or ISO 14064.

That is a carbon management problem, not a full ESG problem. A dedicated platform like Seedling's carbon management software gets you there faster, at lower cost, and with less internal overhead than an enterprise ESG suite.

How We Chose These Tools

This list was built on four criteria:

Scope of coverage: Does the platform clearly state what it covers (E, S, G, or all three)?
Fit by company size: Is the platform genuinely usable by a lean team, or does it require a dedicated sustainability function to operate?
Methodology and credibility: Are emissions calculations GHG Protocol-aligned? Are data sources and emission factors transparent?
Compliance outputs: Can the platform produce outputs that satisfy real-world frameworks (CSRD, B Corp, PPN 006, SECR, SBTi, ISO 14064)?

Seedling is included here as the specialist E-only option because the majority of businesses searching for ESG software actually need carbon management software. The distinction matters: a platform built specifically for carbon will produce more accurate data, with less effort, than a broad ESG tool where carbon is one module among many. See how Seedling approaches carbon measurement.

What to Look for in ESG Reporting Software

Before shortlisting any tool, get clear on these questions:

Which pillars do you actually need to report on? If it is only carbon/GHG, a full ESG platform is unnecessary overhead.
What frameworks do you need to comply with? CSRD, B Corp, PPN 006, SECR, SBTi, and ISO 14064 all have different requirements.
How much internal resource do you have? Enterprise platforms typically require a sustainability team to operate day-to-day. If one person manages this alongside other work, choose a tool built for that reality.
Is methodology transparent? Choose software with clear data validation and audit trails to confirm accuracy.
What does the support model look like? Software-only tools leave you to figure it out alone. Platforms that include expert guidance reduce both risk and workload.

Regulatory bodies are increasingly including mid-sized and smaller enterprises in ESG disclosure frameworks, prompting them to adopt formalised reporting tools. Growing awareness among SMEs of the long-term value of sustainability practices (improved brand reputation, risk mitigation, and operational resilience) is also contributing to increasing software adoption.

About Seedling

Seedling is carbon management software trusted by 500+ businesses. It gives teams the technology and expert guidance they need to measure an accurate, full-scope carbon footprint (Scopes 1, 2, and 3), build a quantified decarbonisation plan, and produce compliance-ready outputs (without the overhead of enterprise software or the cost of a consulting project).

Seedling covers the Environmental pillar of ESG. It is not a full ESG platform. If accurate carbon data, meaningful reduction, and credible reporting are what you need, explore the platform or book a demo.