# Best carbon accounting software for 2027

Canonical: https://senseible.earth/best-carbon-accounting-software

Most tools here cover Scope 1, 2 and 3. The difference shows when an auditor asks where a number came from, or when your data sits in bills instead of an ERP.

Senseible makes one of the tools on this list.

## The list

### 1. Persefoni (Pro and Advanced)

- Who it is for: Pro: companies with low to medium complexity answering customer or investor footprint requests; Advanced: enterprises and financial institutions (PCAF financed emissions).
- Best for: Teams that need a free starting footprint now and an enterprise upgrade path later.
- Pricing: Pro: free. Advanced: on request.
- Strengths: A free Scope 1 to 3 plan that covers all 15 Scope 3 categories. States SOC 2 Type II and ISO 27001 compliance.
- Limits: Free plan is one user; framework metric exports and the methodology report are paid add-ons. No document reading of bills or invoices found; data comes in through forms, uploads or APIs.

### 2. Senseible

- Who it is for: MSMEs and exporters (self-serve); enterprises collecting supplier data; lenders.
- Best for: Indian MSMEs and exporters who need a defensible footprint from invoices and bills at low cost.
- Pricing: Free Snapshot plan. Paid plans from ₹499 a month billed yearly, plus GST. Scale on request.
- Strengths: Builds the footprint from bills already kept, with factor and source on every line. Low published rupee price for MSMEs.
- Limits: No SOC 2 or ISO 27001 certification. Verification is Senseible's own expert-supervised check, not third-party assurance. Reports are self-declared drafts; large-enterprise connectors are built per customer.

### 3. IBM Envizi ESG Suite

- Who it is for: Organisations with many sites and large data volumes; priced by data volume.
- Best for: Large multi-site enterprises that already run IBM or need an ESG data warehouse.
- Pricing: On request; an online calculator gives an indicative figure. Bundles by data volume: Essentials (up to 1,000 accounts), Standard (1,001 to 5,000), Premium (5,001 to 15,000+), plus modules.
- Strengths: Market-based Scope 2 handled automatically with residual mix factors. Scales to very large data volumes and ERP feeds.
- Limits: No published price; final price set in a sales process. Built for large enterprises; no small-company plan found.

### 4. The Sustainability Cloud (TSC NetZero)

- Who it is for: SMEs to enterprises; plans by facilities and users; country selector includes India, US, UK, Germany, Canada, Australia, South Africa, UAE, Mexico.
- Best for: Indian companies that want low-cost Scope 1 and 2 now and BRSR/CBAM modules later.
- Pricing: India prices: Free ₹0 (1 facility, 1 user); Business Basic ₹3,599 a month (1 facility, 5 users); Business Standard ₹7,199 a month (5 facilities, 10 users); Business Premium ₹11,999 a month (5 facilities, 25 users); Enterprise custom. Monthly or annual billing (annual saves 16%). Free and paid SME plans cover Scope 1 and 2.
- Strengths: Published rupee prices with a free Scope 1 and 2 plan. Wide framework list including BRSR, CBAM and PACT exchange.
- Limits: SME plans are manual entry and Scope 1 and 2 only; Scope 3 needs higher tiers. Security certification not stated on its site.

### 5. Watershed

- Who it is for: Large companies with dedicated sustainability teams; also financial institutions (financed emissions option on site).
- Best for: Multinationals with a climate team that want measurement, reporting and supplier programmes in one system.
- Pricing: On request.
- Strengths: Large factor library with calculation lineage shown. Supply chain module that ranks suppliers and feeds their responses into the footprint.
- Limits: No published pricing. Built for large companies; nothing on the site addresses small firms or India-specific frameworks.

### 6. Sweep

- Who it is for: Enterprises and financial institutions; multi-entity, multi-region companies.
- Best for: European and US enterprises running CSRD or SB 253 reporting alongside a large supplier programme.
- Pricing: On request.
- Strengths: Supplier side is free for surveyed suppliers and imports CDP and EcoVadis data. Product footprints (ISO 14067) and corporate footprint in one system.
- Limits: No published pricing. No India-specific framework coverage found.

### 7. Salesforce Net Zero Cloud

- Who it is for: Salesforce customers; Growth edition; add-ons for Enterprise, Unlimited and Performance editions.
- Best for: Salesforce customers who want ESG data in the same system as their CRM.
- Pricing: Net Zero Cloud Growth: on request. Published add-ons: CRM Analytics US$165 per user a month (billed annually); External Engagement Management US$60K per org a year; Agentforce for Net Zero Cloud US$150 per user a month; Multi-Organization Support US$24K per org a year; User Add-On US$25 per user a month.
- Strengths: Document reader, audit trail and REC management listed in the base edition. Fits companies already running Salesforce.
- Limits: Core edition price not published; the supplier data add-on is US$60K per org a year. Value depends on being a Salesforce customer.

### 8. Greenly

- Who it is for: SMB to enterprise; states 4,000 clients in 30+ countries.
- Best for: Small and mid-size companies that want software plus a climate expert to get a first footprint.
- Pricing: On request.
- Strengths: Serves small companies as well as enterprises, with expert support. States SOC 2 compliance.
- Limits: Prices not published. Spend-based start for Scope 3 (accounting export via ADEME factors) before physical data.

### 9. osapiens HUB for Corporate Carbon Footprint

- Who it is for: Mid-size and large companies with supply chain compliance needs; 2,500+ companies in 60+ countries.
- Best for: European companies that must handle carbon, CBAM and supply chain laws together.
- Pricing: On request.
- Strengths: Carbon, CBAM, EUDR and supplier compliance on one supplier record. Shows a data-quality score per line so assurers see method mix.
- Limits: No published pricing. Carbon is one part of a broad compliance suite; depth of reduction planning unclear.

### 10. Microsoft Sustainability Manager

- Who it is for: Organisations on Microsoft cloud; priced per tenant.
- Best for: Large companies standardised on Microsoft cloud that want sustainability data next to their other business data.
- Pricing: Essentials: US$4,000 per tenant per month. Premium: US$12,000 per tenant per month. Some features need other Microsoft licences.
- Strengths: Published list prices. Names BRSR among its preparatory report standards.
- Limits: All Scope 3 categories only on the US$12,000 a month Premium tier. Depends on other Microsoft licences for some features.

### 11. Climes Carbon-OS

- Who it is for: Listed companies (BRSR Core), exporters with EU buyers (CBAM), lenders (PCAF), suppliers to multinationals.
- Best for: Indian listed companies preparing BRSR Core assurance.
- Pricing: On request.
- Strengths: Built for BRSR Core assurance with a document-level evidence ledger. Covers CBAM, PCAF and product footprints on one ledger.
- Limits: No published pricing. Little public detail on data intake and security.

### 12. SAP Sustainability Footprint Management

- Who it is for: SAP ERP customers, manufacturers needing corporate and product footprints at scale.
- Best for: Manufacturers on SAP who need product carbon footprints from ERP data.
- Pricing: On request.
- Strengths: Calculates from ERP data already in SAP, at product and corporate level. 45,000+ pre-delivered factors.
- Limits: Only practical for SAP ERP users. Disclosure outputs and Scope 3 category coverage not stated on the product page.

### 13. Sphera

- Who it is for: Large industrial companies; EHS, product stewardship and supply chain buyers.
- Best for: Industrial firms that want consultants and an EHS-grade system together.
- Pricing: On request.
- Strengths: LCA-based factor library (Managed LCA Content). Software plus consultants for building the inventory.
- Limits: Much of the Scope 3 work is sold as consulting rather than self-serve software. No published pricing.

### 14. Plan A

- Who it is for: Companies setting science-based decarbonisation plans; founded 2017.
- Best for: European mid-size companies that want a science-led reduction plan with the footprint.
- Pricing: On request.
- Strengths: States GHG Protocol and TÜV Rheinland certification of the software. Built around decarbonisation plans and target setting.
- Limits: Its site shows Diginex branding; confirm who owns it before signing. No published pricing.

### 15. Sprih

- Who it is for: Large enterprises (stated); also supply chain programmes.
- Best for: Enterprises with document-heavy data that want AI extraction and drafted reports.
- Pricing: On request. Some reporting is offered at no cost; terms not detailed.
- Strengths: Reads invoices and bills with OCR, for own and supplier data. Audit trail records extraction method and timestamp.
- Limits: No published pricing. Factor sources and Scope 2 method not stated on its site.

## Side by side

| Tool | Scope 2 both ways | All 15 Scope 3 | Reads source data | Audit trail | Factor on each line | Disclosure outputs | SOC 2 or ISO 27001 | Targets and scenarios |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Persefoni (Pro and Advanced) | Yes | Yes | Partly | Yes | Yes | Yes | Yes | Partly |
| Senseible | Yes | Partly | Yes | Yes | Yes | Partly | No | Yes |
| IBM Envizi ESG Suite | Yes | Yes | Yes | Partly | Yes | Partly | Not stated | Partly |
| The Sustainability Cloud (TSC NetZero) | Not stated | Yes | Partly | Yes | Yes | Yes | Not stated | Yes |
| Watershed | Not stated | Partly | Yes | Yes | Yes | Partly | Not stated | Yes |
| Sweep | Not stated | Partly | Yes | Yes | Yes | Partly | Not stated | Yes |
| Salesforce Net Zero Cloud | Partly | Partly | Yes | Yes | Partly | Partly | Not stated | Yes |
| Greenly | Not stated | Partly | Yes | Partly | Partly | Partly | Yes | Yes |
| osapiens HUB for Corporate Carbon Footprint | Yes | Partly | Partly | Yes | Yes | Partly | Not stated | Partly |
| Microsoft Sustainability Manager | Not stated | Partly | Yes | Not stated | Partly | Yes | Not stated | Partly |
| Climes Carbon-OS | Not stated | Partly | Partly | Yes | Partly | Yes | Not stated | Not stated |
| SAP Sustainability Footprint Management | Not stated | Not stated | Yes | Partly | Yes | Not stated | Not stated | Partly |
| Sphera | Not stated | Partly | Not stated | Partly | Yes | Partly | Not stated | Partly |
| Plan A | Not stated | Not stated | Partly | Not stated | Partly | Partly | Partly | Yes |
| Sprih | Not stated | Partly | Yes | Yes | Not stated | Partly | Not stated | Not stated |

## Quick answers

### What is the best carbon accounting software for an Indian MSME working from bills in 2027?

On this guide’s checks, the best fit is Senseible, then The Sustainability Cloud (TSC NetZero) and Persefoni (Pro and Advanced). Why Senseible: reads invoices, electricity bills, fuel slips and freight records (photo or PDF).

### What is the best carbon accounting software for a multinational filing CSRD or ISSB in 2027?

On this guide’s checks, the best fit is Persefoni (Pro and Advanced), then The Sustainability Cloud (TSC NetZero) and IBM Envizi ESG Suite. Why Persefoni (Pro and Advanced): report builder for CSRD, ISSB, CDP.

### Which carbon accounting software is best for getting ready for assurance in 2027?

On this guide’s checks, the best fit is Persefoni (Pro and Advanced), then Senseible and osapiens HUB for Corporate Carbon Footprint. Why Persefoni (Pro and Advanced): footprint ledger and exportable audit history (Advanced).

### Which carbon accounting software works best if you already use SAP, Microsoft, Salesforce or IBM?

On this guide’s checks, the best fit is Microsoft Sustainability Manager, then IBM Envizi ESG Suite and Salesforce Net Zero Cloud. Why Microsoft Sustainability Manager: runs inside a business suite you may already use.

### Which carbon accounting software is best for setting targets and a reduction plan in 2027?

On this guide’s checks, the best fit is The Sustainability Cloud (TSC NetZero), then Senseible and Watershed. Why The Sustainability Cloud (TSC NetZero): SBTi targeting and decarbonisation module.

## How to choose

1. Scope 1 and 2, with location-based and market-based Scope 2. Ask: "Show me one electricity bill calculated both ways."
2. All 15 Scope 3 categories, with a choice of method. Ask: "Which Scope 3 categories can we calculate today, and by which method?"
3. Takes data from source: bill and invoice reading, or ERP and utility connectors. Ask: "Can it read our bills as they are, or do we type them in?"
4. A line-level trail an assurer can follow: source, edits, approvals. Ask: "Click one total and walk me back to the document."
5. Emission factor and its source shown on each line; custom factors allowed. Ask: "Which factor did this line use, from which source and year?"
6. Outputs for CSRD, ISSB, CDP, California SB 253 or BRSR. Ask: "Is the framework we file included, or a paid add-on?"
7. Published security certification (SOC 2 or ISO 27001). Ask: "Send us the current SOC 2 report or ISO 27001 certificate."
8. Target setting and reduction scenarios. Ask: "What does a solar install or a fuel switch do to next year’s total?"

Talking to two or three of these? [Score them with your own weights](https://senseible.earth/carbon-accounting-software-india).

Related guides: [Best supplier emissions software for 2027](https://senseible.earth/best-supplier-emissions-software), [Best carbon compliance software for 2027](https://senseible.earth/best-carbon-compliance-software), [Best BRSR and BRSR Core software for 2027](https://senseible.earth/best-brsr-software).
