

Many suppliers begin their emissions journey using estimates, industry averages, or internally compiled data. For many businesses, this is an appropriate starting point.
As customer requests for emissions information become more frequent and consequential, however, greater confidence in that data often becomes valuable. Investing in independently verified emissions data can help suppliers strengthen credibility, support better decision-making, and respond to evolving customer requirements with greater confidence.
Start with the reason for collecting emissions data
The right level of measurement and verification depends on what you are trying to achieve.
You may be collecting emissions data because:
- Customers are requesting information.
- You're responding to tender requirements.
- You want to identify reduction opportunities.
- Your organisation is making climate-related commitments.
- You want to support business growth and market differentiation.
The greater the business importance, the greater the value of robust data.
Signs you may be ready for verified emissions data
As your emissions reporting matures, there may come a point where estimates and internally compiled data no longer meet customer expectations or business needs.
It’s time to invest in verification if:
Current customers ask for it regularly
If emissions information is becoming a standard request from key customers, independent verification can increase confidence in the information you provide and help differentiate your business.
Climate performance is influencing new customer decisions
When customers are using emissions performance to assess new suppliers, independently verified data can help build confidence and improve your chances of winning new contracts.
You work with customers in increasingly regulated sectors
Industries such as finance, government, infrastructure, agriculture, and large corporates face growing climate-related reporting and compliance requirements. Independently verified data can help you meet these expectations and respond more confidently to customer requests.
You want to access new markets
As climate reporting expectations increase locally and globally, having emissions data verified to international ISO standards supports access to new customers, markets, and supply chains.
You're making public claims
If your organisation communicates emissions achievements externally, verification can strengthen credibility and reduce the commercial risk of overstated or misleading claims.
You want better decision-making internally
Higher-quality data can provide greater confidence when prioritising business investments and emissions reduction initiatives.
Explore our supplier series
Understand what climate-invested customers expect from their suppliers. Respond confidently and build stronger relationships.
- Working successfully with climate-invested customers
- What data do climate-invested customers need from suppliers?
- When should a supplier invest in verified emissions data?
Helping suppliers understand, respond to, and succeed in a low-emissions economy.
Contact us
Turn your climate ambition into real business impact. Contact a Toitū sector expert and explore our leading certification and advisory options today.

Kaan Gunes
Primary Industries, Manufacturing & Transport

Zoe Burkitt
Built Environment, Energy, Water & Waste

Francois Hecquet
Government & Finance