Understand your carbon footprint in minutes,
not days.

CarbonTrail's innovative AI-based carbon accounting takes the guesswork out of carbon neutrality.

Connect your accounting software and get started in minutes.


We automatically sync data from your tools

A simple, automated, and flexible approach to calculate your carbon footprint


Quick and Easy

Understand your carbon footprint in half an hour or less. Just add your accounting software and go!


A Complete Picture

Understand all aspects of your direct, indirect and value chain emissions.


Built-in Coaching

We crunch the numbers so you don't have to. Get actionable advice to get you to net-zero.


Offset in One Click

Once you understand your footprint, easily offset the result.

Get started now

Talk to Tom, the founder of CarbonTrail, and get started on your carbon footprint estimate today!

Frequently Asked Questions

What are carbon emissions?

As organisations make things or provide services, they will generate emissions either from their direct activities, such as delivering a package, or indirectly through their "value chain", such as purchasing stock.

Emissions contribute to climate change by affecting the makeup of gases in our atmosphere, causing the world to heat up, which leads to more extreme weather events amongst other things.

How do I calculate/measure my carbon footprint?

To calculate your carbon footprint, you need to understand your direct emissions and those of your value chain. There are a number of tools available to figure out what this number is. You can use the numbers generated to offset your operations and reduce your emissions over time.

Classically, this was done by consultants, but CarbonTrail wants to democratise this process and make it available to everyone.

How does CarbonTrail work?

CarbonTrail uses a number of data sources to produce as precise of an estimation of your organisation’s carbon footprint as possible. The types of industries where your organisation spends its money – and the amount of money you spend in them – will therefore influence the calculated emissions. 

How accurate is CarbonTrail?

We need to start by saying that it is not possible to work out an “exact” carbon footprint for anything. Even the most accurate emissions calculations suffer from truncation errors – since the number of factors potentially influencing the carbon footprint of something is (literally) infinite, you always have to draw a line somewhere and sacrifice some amount of ‘accuracy’.

This means that, really, carbon footprinting exercises are therefore better or worse, as opposed to accurate or inaccurate.

We stand by our methodology. Every exported report shows the factors used to reach the number, which can then be independently verified.

Is my data secure?

Yes, we use industry-standard encryption and data protection methodologies to ensure that your sensitive financial data is looked after.

We use Amazon Web Services for hosting and data management, often using their managed services which are guaranteed by Amazon themselves.

Finally, only your organisation’s expenditure data is imported to CarbonTrail. We access your accounting data as read-only, and our staff do not have access to your data without your explicit consent