Trusted Portfolio Emissions Intelligence.
Sustema CARBON helps organisations understand portfolio-associated emissions and how companies, industries and portfolios are evolving over time.
Built to support consistent portfolio emissions decision-making.
Consistent Decisions Require Consistent Emissions Intelligence
Understanding portfolio-associated emissions is often more difficult than it first appears.
Reported emissions data is frequently incomplete, different methodologies can produce different outcomes, and organisations often rely on multiple teams, assumptions and data sources when assessing portfolio emissions.
As regulatory expectations continue to evolve, consistency, transparency and auditability become increasingly important.
Without a common framework, organisations can struggle to build a consistent view of portfolio-associated emissions and the decisions that depend upon them.
Sustema CARBON helps organisations establish a consistent foundation for understanding portfolio-associated emissions across companies, industries and portfolios.
Consistent & Auditable Emissions Estimation Framework
At the heart of Sustema CARBON is a consistent and auditable emissions estimation framework.
The framework combines reported emissions data with industry-level analysis and transparent estimation methodologies to provide a consistent view of portfolio-associated emissions.
Where emissions data is unavailable, Sustema CARBON can estimate emissions using documented methodologies based on industry classification, geography and other available company information.
By providing a transparent and repeatable framework, Sustema CARBON helps organisations apply emissions intelligence consistently across portfolios, sustainability teams and decision-making processes.
Attribution Framework
Positive Impact In Four Key Areas
Portfolio Emissions Oversight
Establish a consistent view of portfolio-associated emissions across companies, industries and portfolios. Monitor how emissions exposure is distributed and how it evolves over time.
See it in practice↓Industry & Company Analysis
Compare companies and industry segments using a consistent methodology. Understand how individual companies and sectors contribute to portfolio-associated emissions and identify areas of concentration.
See it in practice↓Portfolio & Sustainability Alignment
Provide a shared view of portfolio-associated emissions across portfolio management and sustainability teams. Support more consistent decision-making through a common framework and methodology.
See it in practice↓Auditability & Transparency
Maintain a clear and transparent record of methodologies, assumptions, attribution logic and emissions estimates. Support internal governance, stakeholder communication and regulatory reporting requirements.
See it in practice↓Sustema CARBON In Practice
Portfolio Dashboard
Gain a consistent view of portfolio-associated emissions, emissions intensity, data quality and trends across companies, industries and portfolios.
Guidance Centre
Understand how emissions exposure is distributed across industry segments and support portfolio decision-making using a consistent emissions framework.
Client Universe
Compare companies and industries using a common methodology and identify relative emissions positioning across a portfolio.
Portfolio Comparison
Compare emissions profiles, emissions intensity and data quality across multiple portfolios using a consistent framework.
Attribution Framework
Maintain transparency and auditability through clearly documented attribution logic, methodologies and emissions estimation approaches.
From regulation to implementation
Sustema CARBON was shaped through Lloyd’s Lab Cohort 15, where we worked with insurers, sustainability teams, underwriters and portfolio managers to understand what they need from portfolio emissions intelligence in practice. Their input directly informed the product’s development and the decisions it is intended to support.
The PRA’s SS5/25 sets out enhanced supervisory expectations for how UK insurers govern, assess and manage climate-related risks. The challenge is now to translate those expectations into data, governance and decisions that work consistently across the business.
Read the full article→“An emissions figure on its own is not an answer. It becomes useful when an insurer can understand what sits behind it, compare it consistently and apply it to an underwriting or portfolio decision. That practical need is why we developed Sustema CARBON.”
Hans Zimmermann · Co-Founder, SustemaWould you like to find out more?
Download the Sustema CARBON overview or request a demonstration to learn how Sustema CARBON can help your organisation establish a consistent and auditable approach to portfolio emissions intelligence.
We'd be happy to talk to you.
Get in touchTrusted Portfolio Emissions Intelligence.
Sustema CARBON helps organisations understand portfolio-associated emissions and how companies, industries and portfolios are evolving over time.
Built to support consistent portfolio emissions decision-making.
Consistent Decisions Require Consistent Emissions Intelligence
Understanding portfolio-associated emissions is often more difficult than it first appears.
Reported emissions data is frequently incomplete, different methodologies can produce different outcomes, and organisations often rely on multiple teams, assumptions and data sources when assessing portfolio emissions.
As regulatory expectations continue to evolve, consistency, transparency and auditability become increasingly important.
Without a common framework, organisations can struggle to build a consistent view of portfolio-associated emissions and the decisions that depend upon them.
Sustema CARBON helps organisations establish a consistent foundation for understanding portfolio-associated emissions across companies, industries and portfolios.
Consistent & Auditable Emissions Estimation Framework
At the heart of Sustema CARBON is a consistent and auditable emissions estimation framework.
The framework combines reported emissions data with industry-level analysis and transparent estimation methodologies to provide a consistent view of portfolio-associated emissions.
Where emissions data is unavailable, Sustema CARBON can estimate emissions using documented methodologies based on industry classification, geography and other available company information.
By providing a transparent and repeatable framework, Sustema CARBON helps organisations apply emissions intelligence consistently across portfolios, sustainability teams and decision-making processes.
Attribution Framework
Positive Impact In Four Key Areas
Portfolio Emissions Oversight
Establish a consistent view of portfolio-associated emissions across companies, industries and portfolios. Monitor how emissions exposure is distributed and how it evolves over time.
Industry & Company Analysis
Compare companies and industry segments using a consistent methodology. Understand how individual companies and sectors contribute to portfolio-associated emissions and identify areas of concentration.
Portfolio & Sustainability Alignment
Provide a shared view of portfolio-associated emissions across portfolio management and sustainability teams. Support more consistent decision-making through a common framework and methodology.
Auditability & Transparency
Maintain a clear and transparent record of methodologies, assumptions, attribution logic and emissions estimates. Support internal governance, stakeholder communication and regulatory reporting requirements.
Sustema CARBON In Practice

Portfolio Dashboard
Gain a consistent view of portfolio-associated emissions, emissions intensity, data quality and trends across companies, industries and portfolios.

Guidance Centre
Understand how emissions exposure is distributed across industry segments and support portfolio decision-making using a consistent emissions framework.

Client Universe
Compare companies and industries using a common methodology and identify relative emissions positioning across a portfolio.

Portfolio Comparison
Compare emissions profiles, emissions intensity and data quality across multiple portfolios using a consistent framework.

Attribution Framework
Maintain transparency and auditability through clearly documented attribution logic, methodologies and emissions estimation approaches.
From regulation to implementation
Sustema CARBON was shaped through Lloyd’s Lab Cohort 15, where we worked with insurers, sustainability teams, underwriters and portfolio managers to understand what they need from portfolio emissions intelligence in practice. Their input directly informed the product’s development and the decisions it is intended to support.
The PRA’s SS5/25 sets out enhanced supervisory expectations for how UK insurers govern, assess and manage climate-related risks. The challenge is now to translate those expectations into data, governance and decisions that work consistently across the business.
“An emissions figure on its own is not an answer. It becomes useful when an insurer can understand what sits behind it, compare it consistently and apply it to an underwriting or portfolio decision. That practical need is why we developed Sustema CARBON.”
Hans Zimmermann · Co-Founder, SustemaWould you like to find out more?
Download the Sustema CARBON overview or request a demonstration to learn how Sustema CARBON can help your organisation establish a consistent and auditable approach to portfolio emissions intelligence.