November 18, 2025

Top 6 Carbon Accounting Platforms in Singapore 2025

Explore the top carbon accounting platforms in Singapore for 2025 - covering SGX, ISSB, and Green Plan requirements. Discover tools that simplify compliance, automation, and sustainability reporting.

Singapore's carbon accounting landscape in 2025 is defined by rapid regulatory evolution, regional leadership in sustainability, and a strong push for digitalization.

The Singapore Exchange (SGX) mandates climate-related disclosures for all listed companies, and the government's Green Plan 2030 sets ambitious targets for decarbonization and transparency. With the adoption of global frameworks such as the GHG Protocol, SBTi, and the International Sustainability Standards Board (ISSB), Singaporean organizations must now deliver audit-ready, data-driven carbon reports that stand up to international scrutiny.

Singapore's regulatory environment continues to evolve through a carefully phased approach. All SGX-listed companies must report Scope 1 and 2 emissions from FY2025. The top 30 Straits Times Index (STI) constituents lead the charge with full ISSB-based climate disclosures from FY2025 and Scope 3 reporting from FY2026.

Non-STI companies with market capitalization of S$1 billion and above will phase in full ISSB disclosures from FY2028, while those below S$1 billion will follow from FY2030. Scope 3 reporting remains voluntary for non-STI companies until further notice. The Monetary Authority of Singapore (MAS) continues to advance voluntary frameworks for financial institutions to disclose financed emissions, signaling a clear direction toward comprehensive sustainability reporting.

In this context, choosing the right carbon accounting platform is critical—not just for compliance, but for unlocking decarbonization opportunities and building stakeholder trust. The best platforms offer strong automation, seamless integration, AI-powered data validation, and support for both local and global standards. This listicle compares the top carbon accounting platforms in Singapore for 2025, focusing on their features, regulatory coverage, technical specifications, and automation strengths.

Unravel Carbon – Editor's Choice

Unravel Carbon is an advanced, AI-driven carbon accounting platform designed for Singaporean organizations facing complex, multi-framework compliance requirements. The platform's architecture features a suite of active AI agents that automate key stages of the sustainability workflow, from data collection and emissions calculation to audit preparation and regulatory disclosure.

Core Corporate Carbon Footprint module features:

Full Scope 1, 2, and 3 Emissions Measurement: GHG Protocol-aligned methodology with flexible data ingestion via CSV, webform, and direct integrations; certified compliance with the standard for organizational carbon accounting
Proprietary Emission Factor Database: 136,000+ factors across 400+ sources; Data Quality Rating (DQR) system on 1-5 scale; custom factor upload capability for proprietary datasets(coming soon).
Audit-Ready Data Management: Complete audit trails with data history tracking for every upload, edit, and deletion; line-by-line export of calculation logic and emission factors supporting audit evidence requirements
Decarbonization Pathways: Climate Program module with scenario modeling, target setting, and access to a curated library of 450+ reduction solutions with financial viability metrics (NPV, IRR, abatement cost)
Comprehensive Reporting: ISSB/IFRS S2 module with 35-step guided workflow and 300+ populated climate risks; GRI Package with 400 certified metrics; AI-assisted drafting and peer benchmarking; 5 Scope 1/2 dashboards with 12 charts; 15 Scope 3 dashboards with 38 charts
Language Translation: Automated data ingestion from over 70 languages, enabling seamless multi-jurisdictional data collection and consolidation

Product Carbon Footprint (PCF) Module:

The PCF module is ISO 14067-aligned and enables product-level emissions analysis following the standard's principles for lifecycle stage assessment, hotspot identification, and standardized two-page report export. The module supports lifecycle assessment methodology aligned with ISO 14067, guiding (not mandating) product-level carbon measurement.

Technical Specifications:

Direct API and SFTP integrations with major ERP and HR systems (SAP, NetSuite, Xero, Workday, BambooHR); AI-powered data validation with anomaly detection and one-click fixes; automated language translation for 70+ languages; asset-level analytics and customizable dashboards; role-based access control with Admin, Editor, and Viewer permissions.

AI and Automation Capabilities:

Unravel Copilot: Expert AI assistant providing platform navigation, sustainability knowledge, and task execution support
Emissions Calculation Agent: Intelligent mapping and transformation of raw data from Excel, CSV, and PDF formats into standardized templates for calculation; hybrid Scope 3 approach prioritizing item-level factors over spend-based methodologies
Insights & Review Agent: Automated QA/QC with three operational modes—custom analysis, data review for validation, and comprehensive emissions insights reporting; statistical anomaly detection and flagging for assurance readiness

Competitive Strengths:

Unravel Carbon's agentic platform architecture delivers comprehensive automation, auditability, and regulatory alignment across both Singaporean and global frameworks. The platform's active AI agents reduce manual effort, ensure data quality through automated validation and anomaly detection, and support multi-framework compliance with dedicated modules for ISSB, GRI, and SGX requirements. Deep integration capabilities with major business systems and a proprietary emission factor database with transparent DQR scoring provide the accuracy and flexibility needed for Singapore's evolving regulatory environment. The platform's clear separation of CCF and PCF capabilities, combined with a comprehensive decarbonization planning module, makes it a robust choice for organizations seeking an integrated, audit-ready solution that can scale with regulatory demands.

Terrascope

Terrascope is a Singapore-based carbon accounting platform with intelligent data collection capabilities, AI-driven decarbonization planning features, and dedicated compliance modules for evolving reporting standards.

Core Features:

Intelligent data collection and management for Scope 1-3 emissions via customizable templates, API connectors, spreadsheets, and PDFs; processes data 5x faster than manual methods
AI-powered emission factor matching and data gap filling using estimation methodologies aligned with the GHG Protocol
One-click decarbonization plan generation with action prioritization and scenario simulation
Driver analysis capabilities to drill down into emission sources and surface reduction levers; data validation with 92% accuracy
Forest, Land and Agriculture (FLAG) module for SBTi-aligned emissions reporting in agriculture and land-use sectors
Audit-ready documentation with evolving reporting requirement support

Regulatory Coverage:

GHG Protocol compliant, SBTi FLAG-aligned with dedicated module, ISO 14064 alignment, audit-ready documentation standards.

Technical Specifications:

Data ingestion via multiple channels (API, spreadsheet, PDF); initiative-optimization module for cost-effectiveness simulation; professional services available for custom data solutions and strategic planning.

Automation Capabilities:

AI-driven data gap filling, automated decarbonization plan generation, scenario simulation for initiative optimization.

Strengths:

Terrascope's platform provides practical tools for forward-looking decarbonization strategy with its one-click plan generation and scenario modeling capabilities. The dedicated SBTi FLAG module offers specialized functionality for businesses in agriculture and land-use sectors common in Southeast Asia, providing coverage for this specific industry vertical.

Zuno Carbon

Zuno Carbon is a Singapore-based carbon accounting platform offering centralized emissions and ESG data collection with AI-powered emission factor matching and flexible reporting capabilities.

Core Features:

Centralized emissions and ESG data collection via bulk upload or real-time integrations
AI engine for automatic matching of uploaded data to emission factors, supporting English and Southeast Asian languages
Dynamic data templates with pivot and aggregation tools using sum, average, or custom formulas
Multiple metric outputs enabling generation of different disclosure formats from a single data source
Built-in compliance with GHG Protocol and ISO 14064 standards; real-time emissions monitoring with comprehensive reporting

Regulatory Coverage:

GHG Protocol, ISO 14064, ISO 27001, AICPA SOC compliance; certified as GRI software partner; supports CSRD and other evolving standards.

Technical Specifications:

AI engine for automated data-to-emission-factor matching; support for bulk upload and real-time system integrations; multi-language support for regional Southeast Asian languages; real-time emissions monitoring with comprehensive reporting and actionable recommendations.

Automation Capabilities:

Automated data matching to emission factors, multi-framework reporting from single data source, real-time monitoring and analysis.

Strengths:

Zuno Carbon's primary strength lies in addressing practical needs for regional businesses operating across diverse linguistic contexts. The platform's flexible ESG reporting module, which can generate multiple disclosure outputs from a single data source, offers efficiency for organizations reporting against various frameworks.

Evercomm (NXMap Carbon Manager)

Evercomm offers NXMap Carbon Manager, a Singapore-based carbon accounting platform with strong operational system integration capabilities, offering specialized modules for emissions management, reduction planning, and sustainability reporting.

Core Features:

NXMAP Carbon Manager for measuring and reporting energy, water, and waste performance with high granularity
Data ingestion from ERP systems, building management systems, IoT devices, and spreadsheets
Immediate report generation with multi-level reporting capabilities and emission-factor management
NXPLAN module for emission reduction strategy planning with industry peer benchmark analysis
SBTi-aligned target analysis and setting with identification of decarbonization directions
Low-carbon technology matching and actionable plan development with economic assessment (CAPEX/OPEX)

Regulatory Coverage:

GHG Protocol, ISO 14064-1/-2, ISO 14067, ISO 14068, SBTi; third-party verification capabilities ensure alignment with rigorous standards.

Technical Specifications:

Direct data ingestion from building management systems and IoT devices; emission-factor management tools; economic assessment capabilities for reduction initiatives; multi-language capabilities for global operations.

Automation Capabilities:

Automated reporting, benchmarking analysis, data consolidation across multiple facilities and subsidiaries.

Strengths:

Evercomm's engineering and IoT heritage enables direct data ingestion from building management systems and operational IoT devices, providing advantages for companies in real estate, manufacturing, and industrial sectors with extensive physical asset monitoring needs. The dedicated modules for strategic planning (NXPLAN) offer specialized functionality for targeted use cases. The platform supports multi-level group and subsidiary reporting with exceptional granularity.

Methodology & Selection Criteria

This list was compiled through systematic review of carbon accounting platforms with active operations in Singapore, using evaluation criteria including regulatory alignment (GHG Protocol, SBTi, SGX requirements, ISSB standards), audit readiness and data integrity features, automation and AI capabilities, integration with business systems, data quality assurance processes, and user experience design. Features and specifications were validated against official product documentation, regulatory guidance from SGX and ACRA, and direct platform analysis. Only platforms with demonstrated track records in the Singapore market and documented support for 2025 compliance requirements were included in this evaluation. The methodology prioritized factual accuracy and avoided unverified claims, ensuring all technical specifications and feature descriptions could be traced to authoritative sources.

Frequently Asked Questions

What are the new carbon accounting regulations in Singapore for 2025?

Singapore's climate reporting landscape in 2025 is characterized by a phased implementation approach designed to balance regulatory ambition with organizational readiness. All SGX-listed companies must report Scope 1 and 2 greenhouse gas emissions from FY2025, establishing a baseline for decarbonization tracking. The top 30 Straits Times Index (STI) constituents must provide full ISSB-based climate disclosures from FY2025 and Scope 3 emissions from FY2026, leading regional climate transparency efforts. Non-STI companies with market capitalization of S$1 billion and above will implement full ISSB disclosures from FY2028, while companies below S$1 billion will follow from FY2030. Scope 3 reporting remains voluntary for non-STI companies until further notice, though regulators encourage continued capability building. External limited assurance for Scope 1 and 2 emissions is deferred to FY2029 for all listed companies.

How do I choose the right carbon accounting platform for my business?

Evaluate platforms based on regulatory coverage for your specific reporting obligations (SGX requirements, ISSB standards, voluntary frameworks), audit readiness features including comprehensive data trails and calculation transparency, automation capabilities to reduce manual data processing effort, integration compatibility with your existing business systems (ERP, HRIS, facility management), and support for Scope 3 and supply chain data collection. Consider your organization's size, operational complexity, reporting timeline requirements, and internal sustainability team capacity when assessing platform sophistication and support needs.

What is the difference between GHG Protocol and ISO 14067 standards?

The GHG Protocol Corporate Standard provides a comprehensive framework for organizations to measure and report greenhouse gas emissions across Scope 1 (direct emissions), Scope 2 (indirect energy emissions), and Scope 3 (indirect value chain emissions) categories 15 distinct reporting categories. It serves as the foundation for corporate-level carbon accounting globally and is used by the vast majority of organizations for their emissions inventories. ISO 14067, by contrast, is an international standard that specifies principles, requirements, and guidelines for quantifying the carbon footprint of products throughout their lifecycle. ISO 14067 aligns with life cycle assessment (LCA) methodologies from ISO 14040 and ISO 14044, focusing specifically on the greenhouse gas emissions of individual products rather than organizational footprints. While GHG Protocol supports organizational decarbonization strategy and disclosure compliance, ISO 14067 guides (rather than mandates) product-level emissions analysis for supply chain transparency, eco-labeling, and procurement decisions. Both standards support climate action but serve different measurement and reporting purposes within corporate sustainability programs.