The best carbon accounting software for AASB S2 and ASRS reporting in 2026
We scored 32 carbon accounting and climate disclosure platforms against the six questions Australian buyers ask about AASB S2 software, and ranked the 20 we could verify on every one from the vendors' own pages. NetNada ranks first with 92 out of 100. IBM Envizi is second on 82 and Carbonly third on 80.5.
NetNada publishes this page and ranks its own product. The rubric, the weights and a source for every score are below so you can check our work. Where a NetNada capability is confirmed by the company but not yet documented on a public page, the reason says so.
The verdict
NetNada scores 92. It documents all four AASB S2 pillars generated from live emissions and risk data, covers all 15 Scope 3 categories with both activity- and spend-based methods and a guided supplier portal, ships current NGA Factors with NGER methods, and its numbers have been through Deloitte, Grant Thornton and RSM assurance. It gives up points on integration, where Avarni's quicker ERP connections score higher than NetNada's deeper but slower-to-deploy ones, and on Scope 1 and 2 capture, where Carbonly's document-extraction-first design scores 10. IBM Envizi is second on 82, Carbonly third on 80.5 and Avarni fourth on 78.75. Twelve more platforms, including Deloitte's SustainNext, Greener and Drova, are scored where public sources allowed but not ranked, because at least one criterion could not be verified.
The ranking
Rank 1 NetNada
netnada.com
92 out of 100 Total
- Segment:
- Australian specialist
- Pricing:
- Modular, quote-based
- AASB S2 templates 9 out of 10
Pre-built AASB S2 templates for governance, strategy, risk management and metrics, auto-populated from emissions data and risk assessments, with 1.5°C, 2°C and 4°C scenario pathways. [source]
- Audit-ready data 9 out of 10
Version history with before/after values and approver records, evidence linked to every data point, audit packs, and NetNada numbers already audited by Deloitte, Grant Thornton and RSM. [source]
- Scope 1 and 2 data capture 9 out of 10
Upload or sync source documents and NetNada extracts the activity data from invoices automatically, keeping the document as evidence; energy, solar, logistics, fuel-card and travel feeds are also available. Mapping new document types still takes a review pass. [source]
- Scope 3 10 out of 10
All 15 Scope 3 categories with both activity- and spend-based calculation, global emission-factor libraries, and a supplier engagement portal that guides suppliers through a free data-response flow. [source]
- Australian emission factors 10 out of 10
NGA Factors pre-loaded and updated when DCCEEW releases new tables, NGER Methods 1–4 applied, and a public emission-factor database with every source documented. [source]
- ERP and accounting integration 8 out of 10
Xero, MYOB and QuickBooks connectors plus SAP and Oracle, and activity-data feeds for energy and solar systems, logistics, fuel cards and travel; the enterprise connections run deeper than quick API links but take longer to deploy. [source]
AASB S2 is implemented as 166 individual controls across the four pillars, and the most common first-timer mistake is thinking you must disclose on all of them. One Group 1 client only had to disclose on 42.
Rank 2 IBM Envizi
ibm.com/products/envizi
82 out of 100 Total
- Segment:
- Global enterprise, Sydney-founded
- Pricing:
- Quote only
- AASB S2 templates 8 out of 10
ASRS S1 and S2 questions embedded in the Sustainability Reporting Manager with response fields, information-request workflows and supporting documents captured per question. [source]
- Audit-ready data 9 out of 10
Every change logged with full audit trails, attachments can be made mandatory with a bypass reason, and audit reports of attachments can be extracted. [source]
- Scope 1 and 2 data capture 8 out of 10
Ingests from ERP systems, IoT and metering platforms and utility providers, with attachments against each record; connector builds are Expert Labs work. Part software, part vendor-delivered service. [source]
- Scope 3 9 out of 10
All Scope 3 categories, watsonx spend classification for spend-based calculation, and a supplier portal for categories 1 and 2 with a spend/average/hybrid/supplier-specific hierarchy. [source]
- Australian emission factors 9 out of 10
A managed NGER and NGA workbook factor set maintained since 2009, 2025 version, updated after each NGER and NGA release, on AR5. [source]
- ERP and accounting integration 5 out of 10
ERP, metering and utility ingestion is offered, but connectors require a Connector Add-On and are designed and built by IBM Expert Labs. Delivered as a service, not in the software. [source]
Rank 3 Carbonly
carbonly.ai
80.5 out of 100 Total
- Segment:
- Australian specialist
- Pricing:
- Per-project licence, quote only
- AASB S2 templates 8 out of 10
Guided AASB S2 workflow covering governance, strategy, risk register, scenario analysis, transition plan and metrics, with AASB S2 and NGER report types. [source]
- Audit-ready data 9 out of 10
ASSA 5010-ready audit trail, verbatim source-line storage, factor snapshots at confirmation, auditor role, seven-year retention and AWS Sydney residency. [source]
- Scope 1 and 2 data capture 10 out of 10
Document-extraction first: invoices, dockets and EPDs are read by AI from email, OneDrive and SharePoint, with the source line stored verbatim. [source]
- Scope 3 5 out of 10
All 15 categories from invoices, dockets and EPDs, but the vendor rejects spend-based estimation by design and supplier engagement tools are still in development. [source]
- Australian emission factors 10 out of 10
NGA 2025 factors with version history, state grid factors, automatic recalculation when DCCEEW publishes updates, and AR5/AR6 reported per standard. [source]
- ERP and accounting integration 5 out of 10
SAP, Oracle, NetSuite, Xero, MYOB and QuickBooks are supported via CSV export with no write-back; live connectors are described as still expanding. [source]
Rank 4 Avarni
avarni.co
78.8 out of 100 Total
- Segment:
- Australian specialist
- Pricing:
- Quote only
- AASB S2 templates 6 out of 10
AASB S2 is named with “compliance-ready reports”, scenario and target tools, and full audit trails of metrics and targets, but no governance, strategy or risk-management narrative template is shown. [source]
- Audit-ready data 9 out of 10
Step-by-step calculation breakdown with factor source link, bill uploads held as evidence, a change log, an auditor viewer role and SOC 2 Type II. [source]
- Scope 1 and 2 data capture 8 out of 10
Bills are uploaded and held as evidence with a step-by-step calculation breakdown; data can also arrive through the managed ERP connections. [source]
- Scope 3 7 out of 10
All 15 Scope 3 categories, customisable supplier surveys with free supplier access, and spend-based estimation from ledger data using EXIOBASE. [source]
- Australian emission factors 9.5 out of 10
NGA Factors named as a source, and the help centre documents AR5 for NGER and AR6 for ASRS reporting; factor update cadence is not stated. [source]
- ERP and accounting integration 9 out of 10
Named connectors for SAP, Oracle NetSuite, Dynamics 365, Pronto, Xero, Workday and Oracle via a managed API connection; MYOB is not named. [source]
Rank 5 Trace
our-trace.com
78 out of 100 Total
- Segment:
- Australian specialist
- Pricing:
- Quote only
- AASB S2 templates 9 out of 10
AASB S2 named with all four pillars, disclosure drafting ready to publish with financial statements and a standard SSP1-2.6 / SSP2-4.5 scenario pair; part of the scenario work is expert-led. Part software, part vendor-delivered service. [source]
- Audit-ready data 7 out of 10
Automatic audit-trail capture, version control, change log and a downloadable audit report; no in-app evidence vault documented. [source]
- Scope 1 and 2 data capture 7 out of 10
Activity data by direct accounting connection, CSV template or entry, with source-to-output traceability; no invoice OCR is documented. [source]
- Scope 3 7 out of 10
AI classifies supplier transactions across all 15 categories with confidence scores and supplier-level emissions on Pro; no supplier portal mechanism documented. [source]
- Australian emission factors 9 out of 10
NGA Factors prioritised for activity data, Footprint Lab Australian spend factors (506 ANZSIC classes), and a documented annual factor review. [source]
- ERP and accounting integration 7 out of 10
Direct Xero, MYOB and QuickBooks connections plus CSV; no SAP, Oracle or NetSuite connector documented. [source]
Rank 6 Watershed
watershed.com
74.5 out of 100 Total
- Segment:
- Global enterprise, Sydney office
- Pricing:
- Quote only
- AASB S2 templates 8 out of 10
ISSB disclosure product covers the four content areas and the report builder maps entries to individual AASB S2 requirements; no AASB S2-specific template is shown. [source]
- Audit-ready data 9 out of 10
Full data lineage, 150+ automated checks, methodologies assured by a third party every year and a complete audit trail for all carbon data. [source]
- Scope 1 and 2 data capture 8 out of 10
Intelligent data ingestion uses AI and APIs to take any kind of data, with the same governance as CSV uploads. [source]
- Scope 3 10 out of 10
All 15 categories, activity-based category 1 for purchased goods, and a guided supplier portal whose responses flow into the footprint. Part software, part vendor-delivered service. [source]
- Australian emission factors 3 out of 10
2.3 million factors with CEDA and USEEIO as defaults and bring-your-own factors supported, but no Australian NGA or NGER source is named. [source]
- ERP and accounting integration 5 out of 10
“60+ pre-built integrations” and API ingestion are claimed, but no connector list is published and the integrations page returns 404. [source]
Rank 7 Greenbase (Envago)
greenbase.com.au
68.5 out of 100 Total
- Segment:
- Australian specialist, heavy industry
- Pricing:
- Quote only
- AASB S2 templates 8 out of 10
Dedicated Envago AASB S2 module with pre-configured disclosure templates mirroring the Australian structure, guided report writing, approvals and Word export. Part software, part vendor-delivered service. [source]
- Audit-ready data 8 out of 10
Version history, audit logs, supporting documents linked to each disclosure and complete data lineage. [source]
- Scope 1 and 2 data capture 8 out of 10
Data from invoices, spreadsheets, ERP systems or manual entry, with every disclosure traceable to its source within the module. [source]
- Scope 3 4 out of 10
Scope 3 categories and supplier inputs are managed, but no supplier portal, spend-based calculator or industry-average library is described. [source]
- Australian emission factors 7 out of 10
GHG Protocol or NGER methods with methodology updated as legislation changes; NGA Factors are not named by name. [source]
- ERP and accounting integration 4 out of 10
Invoices, spreadsheets, ERP systems or manual entry plus an API; no named accounting or ERP connector. [source]
BraveGen
bravegen.com
66 out of 100 Total
- Segment:
- ANZ mid-market, Sydney office
- Pricing:
- Quote only
- AASB S2 templates 6 out of 10
“Built to comply with ASRS / AASB S2” and NZ climate disclosures, with NGERS listed; no four-pillar template or narrative builder is described. [source]
- Audit-ready data 8 out of 10
Approval workflows, audit trails, rollbacks and quarantine tools, from a product team with Big 4-tested assurance history. Part software, part vendor-delivered service. [source]
- Scope 1 and 2 data capture 9 out of 10
Tools to digitise PDFs and process data files, scheduled email-to-upload, and utility data from the BraveGen Connect logger and smart meters. [source]
- Scope 3 6 out of 10
Supplier data gathering and tenant utility capture through a logger; spend-based calculation is not named on product pages. [source]
- Australian emission factors 5 out of 10
NGERS is a supported framework and the buyer’s guide recommends NGA datasets, but the shipped factor source is not stated. [source]
- ERP and accounting integration 5 out of 10
Code-free integrations, email-to-upload and APIs; no named accounting or ERP connector. [source]
Rank 9 Unravel Carbon
unravelcarbon.com
65 out of 100 Total
- Segment:
- APAC enterprise, Sydney and Perth offices
- Pricing:
- Quote only
- AASB S2 templates 7 out of 10
A 35-step ISSB workflow across the four pillars with an IFRS-licensed export pack; AASB S2 is named only on the blog. [source]
- Audit-ready data 7 out of 10
Visibility of data-match quality and the emission factors used down to source, OCR of utility bills, auditor logins described on the blog. [source]
- Scope 1 and 2 data capture 8 out of 10
OCR extraction of utility bills and a data-transformation agent that shows which factors were applied. [source]
- Scope 3 6 out of 10
A data-collection agent gathers supplier data through a secure link; the spend-based method and industry averages are not documented. [source]
- Australian emission factors 3 out of 10
136,000 factors from 400+ sources, but NGA Factors and NGER methodology are not named. [source]
- ERP and accounting integration 8 out of 10
Automated extraction from SAP, NetSuite and Oracle on the product page, Xero on the blog; API integrations are Enterprise-plan only. [source]
Rank 10 Sumday
sumday.io
64.5 out of 100 Total
- Segment:
- Australian specialist, finance-led
- Pricing:
- Quote only (free 12 months for Xero small businesses)
- AASB S2 templates 5 out of 10
AASB S2, ISSB and NGER are listed and the product generates “climate disclosure drafts”; ASRS workshops and strategy work are services. Part software, part vendor-delivered service. [source]
- Audit-ready data 9 out of 10
A carbon ledger traced to the financials, Azure hosting in Australia, ISO 27001 and SOC 2 Type II. [source]
- Scope 1 and 2 data capture 6 out of 10
Scope 1 and 2 are coded from ledger transactions; no invoice or meter extraction is documented on the pages read. [source]
- Scope 3 7 out of 10
Six-stage supplier engagement with segmentation and free supplier access through the Xero partnership; no spend-based calculator described. [source]
- Australian emission factors 5 out of 10
“Pre-loaded emission factor databases” with NGER as a framework; NGA Factors are not named on the pages read and the help centre was unavailable. [source]
- ERP and accounting integration 7 out of 10
Deep Xero integration (journals, invoices, bank transactions) and Pronto Xi; no MYOB, SAP or Oracle connector documented. [third-party source]
Ranked 11 to 20
These platforms were verified on every criterion and scored on the same rubric. Each score links to the vendor page it was read on.
| # | Platform | AASB S2 | Audit-ready data | Scope 1 | Scope 3 | Australian emission | ERP and | Total |
|---|---|---|---|---|---|---|---|---|
| 11 |  Microsoft Sustainability Manager microsoft.com · Global enterprise | 5 | 6 | 7 | 8 | 7.5 | 5 | 63.3 |
| 12 | Greenly greenly.earth · European SME and mid-market | 5 | 8 | 7 | 8 | 2 | 7 | 61 |
| 13 | Clear Carbon clearcarbon.com.au · Australian environmental data platform | 3 | 9 | 9 | 8 | 4 | 4 | 61 |
| 14 | Diligent ESG diligent.com · Governance suite | 5 | 8 | 6 | 6 | 5 | 4 | 58 |
| 15 | Sweep sweep.net · European enterprise | 7 | 8 | 6 | 6 | 2 | 3 | 57.5 |
| 16 | Salesforce Net Zero Cloud salesforce.com · CRM-platform ESG suite | 4 | 6 | 7 | 8 | 6 | 4 | 57.5 |
| 17 | Workiva Carbon workiva.com · Reporting suite, Sydney and Melbourne offices | 5 | 7 | 6 | 5 | 3 | 8 | 55.5 |
| 18 | Persefoni persefoni.com · US carbon ledger | 4 | 9 | 7 | 6 | 2 | 4 | 54.5 |
| 19 | ClimatePartner climatepartner.com · European CSRD and offsets | 2 | 7 | 5 | 8 | 2 | 3 | 44.5 |
| 20 | Plan A plana.earth · European CSRD platform | 2 | 6 | 7 | 6 | 2 | 3 | 42.5 |
Hover or tap a score for the one-line reason; the link opens the vendor page it was read on.
Also evaluated, not ranked
These platforms are scored where public sources allowed. Each is missing at least one criterion, so it isn't ranked yet. A dash means we could not verify that criterion from the vendor's own pages.
| Platform | AASB S2 | Audit-ready data | Scope 1 | Scope 3 | Australian emission | ERP and | Missing |
|---|---|---|---|---|---|---|---|
| Greener Enterprise and consultant AASB S2 platform; governance module listed as coming soon | 6 | 7 | 6 | 5 | — | — | Factor sources and integrations not documented |
| Climate Zero Xero App Store listing at AUD 250/month (Essential) | 5 | 8 | 7 | 6 | — | 6 | Factor sources not named |
| Carbonhalo Done-for-you AASB S2 service with a platform; NGER/NGA factors stated explicitly | 6 | 6 | 6 | 5 | 9 | — | No accounting or ERP integration documented |
| Drova GRC platform with the strongest four-pillar disclosure workflow docs in the set | 9 | 8 | — | — | — | — | Emissions calculated by Avarni, not natively; integrations page 404 |
| Pathzero Serves asset owners and fund managers (PCAF, IFRS S2) | 3 | 7 | — | — | — | — | Financed emissions only; no corporate Scope 3, factors or ERP docs |
| Cority Sustainability Cloud EHS suite with a carbon module | 4 | 5 | 6 | 5 | — | 4 | No factor sources named; no Australian presence found |
| Deloitte SustainNext Climate Reporting Subscription software (powered by Credibl) wrapped in Deloitte advisory; the one Big Four AU firm with a named AASB S2 product | 7 | 8 | — | 4 | — | — | Factors and integrations not documented |
| Anthesis Intelligence Software plus consulting (formerly Ndevr Environmental); CSRD, SEC and CDP templates | 5 | 9 | 7 | 9 | — | 5 | No Australian factor source named in the product |
| EY Decarbonization Management Platform EY-configured Microsoft-stack solution; EY Australia’s AASB S2 pages are advisory and assurance | — | — | — | 4 | — | 5 | No public AASB S2, factor or audit-trail documentation for the software |
| KPMG Climate IQ Covers the strategy and risk pillars; assurance is a KPMG service | 4 | — | — | — | — | — | A climate-risk scenario tool, not a carbon accounting product |
| PwC Australia ASRS implementation advisory and sustainability assurance | — | — | — | — | — | — | No licensable software on PwC Australia’s site |
| Arcadia (formerly ENGIE Impact Ellipse) ENGIE Impact was acquired by Arcadia in April 2026; the Ellipse product page no longer exists | 3 | 7 | 8 | — | — | 5 | No AASB S2 or ISSB support, no Australian presence documented |
Score table
Scores checked 7 October 2026.
| Criterion | Weight | NetNada | IBM Envizi | Carbonly | Avarni | Trace | Watershed | Greenbase (Envago) | BraveGen | Unravel Carbon | Sumday |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AASB S2 templates | 25 | 9 | 8 | 8 | 6 | 9 | 8 | 8 | 6 | 7 | 5 |
| Audit-ready data | 20 | 9 | 9 | 9 | 9 | 7 | 9 | 8 | 8 | 7 | 9 |
| Scope 1 and 2 data capture | 15 | 9 | 8 | 10 | 8 | 7 | 8 | 8 | 9 | 8 | 6 |
| Scope 3 | 15 | 10 | 9 | 5 | 7 | 7 | 10 | 4 | 6 | 6 | 7 |
| Australian emission factors | 15 | 10 | 9 | 10 | 9.5 | 9 | 3 | 7 | 5 | 3 | 5 |
| ERP and accounting integration | 10 | 8 | 5 | 5 | 9 | 7 | 5 | 4 | 5 | 8 | 7 |
| Total | 100 | 92 | 82 | 80.5 | 78.8 | 78 | 74.5 | 68.5 | 66 | 65 | 64.5 |
Total = Σ (score × weight ÷ 10). Bold marks the best score on each criterion.
Scores checked 7 October 2026.
| Criterion | Weight | Microsoft Sustainability Manager | Greenly | Clear Carbon | Diligent ESG | Sweep | Salesforce Net Zero Cloud | Workiva Carbon | Persefoni | ClimatePartner | Plan A |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AASB S2 templates | 25 | 5 | 5 | 3 | 5 | 7 | 4 | 5 | 4 | 2 | 2 |
| Audit-ready data | 20 | 6 | 8 | 9 | 8 | 8 | 6 | 7 | 9 | 7 | 6 |
| Scope 1 and 2 data capture | 15 | 7 | 7 | 9 | 6 | 6 | 7 | 6 | 7 | 5 | 7 |
| Scope 3 | 15 | 8 | 8 | 8 | 6 | 6 | 8 | 5 | 6 | 8 | 6 |
| Australian emission factors | 15 | 7.5 | 2 | 4 | 5 | 2 | 6 | 3 | 2 | 2 | 2 |
| ERP and accounting integration | 10 | 5 | 7 | 4 | 4 | 3 | 4 | 8 | 4 | 3 | 3 |
| Total | 100 | 63.3 | 61 | 61 | 58 | 57.5 | 57.5 | 55.5 | 54.5 | 44.5 | 42.5 |
Total = Σ (score × weight ÷ 10). Bold marks the best score on each criterion.
The five questions, side by side
| Question | NetNada | IBM Envizi | Carbonly | Avarni | Trace | Watershed | Greenbase (Envago) | BraveGen | Unravel Carbon | Sumday |
|---|---|---|---|---|---|---|---|---|---|---|
| Built-in templates for all four AASB S2 pillars? | Yes | Yes | Yes | Partly | Yes | Partly | Yes | — | Yes | Partly |
| Names NGA Factors or NGER methods as a factor source? | Yes | Yes | Yes | Yes | Yes | No | Partly | — | No | Partly |
| Documents AR5 vs AR6 handling? | Partly | Partly | Yes | Yes | — | — | — | — | — | — |
| Evidence files stored against each data point? | Yes | Yes | Yes | Yes | — | Partly | Yes | — | — | — |
| Extracts Scope 1 and 2 activity data from invoices automatically? | Yes | Partly | Yes | Partly | No | Yes | Partly | — | Yes | No |
| Supplier portal plus spend-based Scope 3? | Yes | Yes | No | Yes | Partly | Yes | No | — | Partly | Partly |
| Named Xero and MYOB connectors? | Yes | No | Partly | Partly | Yes | No | No | — | Partly | Partly |
| Named SAP or Oracle connector? | No | Partly | Partly | Yes | No | — | — | — | Yes | No |
A dash means it isn't a clean yes or no from the vendor's own pages.
When another platform is the better pick
- Pick Avarni if you want the quickest ERP connections (SAP, Oracle, NetSuite, Dynamics, Pronto, Xero) and AR5 for NGER alongside AR6 for ASRS documented in the help centre. [source]
- Pick IBM Envizi if you are a large enterprise that wants the longest-maintained NGER and NGA factor set (since 2009) inside a broader ESG suite and can budget for Expert Labs integration work. [source]
- Pick Trace if you want climate risk and scenario work done with the vendor's experts alongside the software, and Xero, MYOB or QuickBooks is your ledger. [source]
- Pick Carbonly if you are an asset-heavy NGER or Safeguard reporter who wants activity data from invoices and dockets only, with no spend-based estimation at all. [source]
- Pick Watershed if you run a multinational Scope 3 programme with thousands of suppliers; it ties NetNada on Scope 3 but names no Australian factor source. [source]
- Pick Sumday if finance or your accountant will run carbon from Xero and a ledger-level audit trail matters most. [source]
- Pick Greenbase (Envago) if you are in mining, energy or utilities and already report NGER and NPI; its AASB S2 module sits on that base. [source]
- Pick Unravel Carbon if your operations span Asia-Pacific and your data lives in SAP, NetSuite or Oracle. [source]
- Pick Microsoft Sustainability Manager if your data already lives in Dynamics and Power Platform and you have the skills to configure it; its ASRS templates are still in preview. [source]
- Pick Greenly if you report in Europe and want ready-made Codat accounting connectors; it has no Australian factor source. [source]
- Pick Workiva Carbon or Salesforce Net Zero Cloud if you already run Workiva for the annual report or Salesforce across the business and want carbon inside that platform. [source]
- Pick Deloitte SustainNext if you want the software wrapped in a Big Four advisory and assurance relationship from day one.
- Pick Drova if you already run a GRC platform and want the AASB S2 disclosure workflow there, with emissions supplied by Avarni.
- Pick Pathzero if you are an asset owner or fund manager reporting financed emissions under PCAF.
Pricing
Prices checked 7 October 2026.
| Platform | Listed price | Source |
|---|---|---|
| NetNada | Modular (carbon accounting, climate reporting, supply chain, target setting bought separately); quote-based; suppliers share data free | netnada.com/pricing |
| Salesforce Net Zero Cloud | Growth: AU$294,000 per org per year; supplier engagement add-on US$60,000 | salesforce.com/au |
| Microsoft Sustainability Manager | Essentials US$4,000 and Premium US$12,000 per tenant per month, plus per-user licences | microsoft.com/en-au |
| Climate Zero | Essential AU$250 per month (Xero App Store listing; own pricing page 404) | Xero App Store |
| Carbonly | Monthly account fee plus per-project licence; “from $100/month” stated on the blog, currency not given | carbonly.ai |
| Persefoni | Pro tier free; Advanced quote only | persefoni.com |
| Sumday | Small Business plan free for 12 months for Xero customers; otherwise quote only | Xero App Store |
| Avarni | Annual subscription priced by AASB S2 group; quote only | avarni.co |
| Trace | Starter, Pro and Enterprise; quote only | our-trace.com |
| IBM Envizi, Watershed, Greenbase, Unravel Carbon, BraveGen, Greenly, Diligent, Sweep, Workiva, Clear Carbon, ClimatePartner, Plan A | Quote only | Vendor pricing pages |
How we scored
| Criterion | Weight | A 10 means | A 5 means |
|---|---|---|---|
| AASB S2 templates Buyer question: Does the software natively support AASB S2 and ISSB templates across governance, strategy, risk management and metrics and targets? | 25 | Built-in AASB S2 templates for all four pillars, generated from live data | ISSB generic or preview templates, or AASB S2 alignment claimed without a four-pillar workflowA 2: No ISSB-family framework supported |
| Audit-ready data Buyer question: Is the data audit-ready: clear audit trail, document storage for evidence, transparent calculation methodology? | 20 | Change-history audit trail, evidence storage per data point and factor-level methodology, all in the software | One or two of the three, or audit-readiness claimed without mechanicsA 2: Exports only |
| Scope 1 and 2 data capture Buyer question: Can it take your source data (utility bills, fuel receipts, meter and energy data) and extract the activity data automatically, so Scope 1 and 2 aren't keyed in by hand? | 15 | Source documents uploaded or synced and activity data extracted automatically (OCR/AI), with the document kept as evidence | Spreadsheet templates or manual entry, or extraction claimed without mechanicsA 2: Manual entry only |
| Scope 3 Buyer question: How well does it handle Scope 3: supplier engagement portals, spend-based calculators, pre-built industry averages? | 15 | Supplier portal, spend-based calculators and industry averages across all 15 categories | Spend-based only, or supplier requests onlyA 2: Scope 3 by manual upload only |
| Australian emission factors Buyer question: Does it use Australian-specific emission factors: up-to-date NGA Factors and NGER methodologies? | 15 | Current NGA Factors and NGER methods integrated and version-tracked, AR5 and AR6 reported per standard | Australian factors available but dated, or NGER named as a framework without the factor sourceA 2: Global factor sets only, no Australian source named |
| ERP and accounting integration Buyer question: Does it integrate with existing ERP and accounting systems (Xero, MYOB, SAP, Oracle) so bills and receipts aren't entered by hand? | 10 | Named, automatic connectors for Xero, MYOB, SAP and Oracle | One accounting system, CSV import, or integrations claimed without a connector listA 2: Manual upload only |
What we didn't score. Price isn't scored, because only five vendors publish one and buyers weigh it differently by entity size; it's listed above instead. Scenario analysis isn't scored, because it sits inside the templates test, where it belongs to the Strategy pillar. Calculation accuracy isn't scored, because no vendor publishes a comparable figure. Advisory and assurance services isn't scored, because Deloitte, EY, KPMG, PwC and Anthesis are channel partners for software like NetNada's; we scored only software they license, and only where their own pages document it.
Sources. Every score comes from the vendor's own pages or help centre read on 7 October 2026, unless marked third-party. Where a vendor documents its approach to a criterion but names no Australian source or connector, it is scored low rather than withheld. Where a vendor publishes nothing on a criterion, the score is withheld and the platform appears in the “also evaluated” table. Service-delivered capabilities are labelled on each card.
What you need to know before choosing
What assurers actually ask for first
On a Group 1 client's Deloitte readiness questionnaire, the first two methodology questions were where the emission factors come from and whether they are verifiable, and whether the latest IPCC global warming potentials were used. In sample testing the same firm tied individual electricity records back to invoices, re-performed the bill apportionment and flagged a factor from a 2022 release that should have been the 2025 one. That is why audit-ready data carries a fifth of the score and why factor version tracking appears in the anchors: assurers check vintage, not just source. (Afonso Firmo, from NetNada's Group 1 assurance work.) AASB S2 and assurance phase-in
NGER uses AR5. AASB S2 points to AR6. Ask which one the platform applies, per line
NGER reporting uses the AR5 global warming potentials in the National Greenhouse Accounts Factors, while AASB S2 refers to the latest IPCC assessment. NetNada applies AR5 by default to stay aligned with NGER and NGA regulatory reporting, and logs the GWP method, factor source, dataset, region and reporting year on every calculation line so an assurer can see which assessment report was applied where. Only Avarni and Carbonly document a per-standard AR5/AR6 split on their sites; that is why they score above NetNada on this test. (Lochie Burke, NetNada.) Emission factor sources
Scope 3 spend factors are usually three years older than the spend
Spend-based Scope 3 is required from your second reporting period, and most platforms map this year's spend to an input-output factor built on data that is three or more years old. Adjust for inflation and currency before you compare vendors' Scope 3 numbers, and expect better data to push the footprint up as often as down. Granularity is not the same thing as accuracy. (Afonso Firmo, NetNada.) Scope 3 emissions calculator
Check how the platform does market-based Scope 2
The most common calculation error we see is a platform applying the market-based (residual) factor to total kilowatt-hours without first removing the renewable power percentage the Clean Energy Regulator publishes each year, around 17 per cent. NetNada produces four ledger lines for every electricity record (location-based, market-based, well-to-tank and transmission losses) and applies certificates only to the market-based line against the residual portion. It is the first thing assured, so ask any vendor to walk you through one bill. (Afonso Firmo, NetNada.) Scope 2 market-based calculator
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Related reading
- AASB S2: mandatory climate-related financial disclosures
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- Carbon accounting software in Australia: the complete 2026 comparison guide
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