Carbon Footprint Software, Data and Consultancy

Start by measuring, so you know where your largest emissions sources are. For most businesses the biggest savings come from energy efficiency, switching to renewable electricity, reducing business travel and fleet emissions, and working with suppliers on Scope 3. Set a reduction target, build a plan with clear owners and dates, and track progress every year. Our carbon reduction guidance and Net Zero consultancy can help you prioritise.

Activity data, such as kWh of electricity, litres of fuel, miles travelled or money spent with suppliers, is multiplied by emission factors to give tonnes of carbon dioxide equivalent (CO2e). Results are grouped into Scope 1, 2 and 3 under the GHG Protocol. Sustrax applies current emission factors automatically, including well-to-tank emissions, and keeps a full audit trail. For a quick estimate, try our free business carbon calculator.

Carbon footprint software collects your energy, travel, procurement and other activity data, converts it into emissions and produces reports. It replaces spreadsheets with a single auditable record, so year-on-year comparisons, target tracking and disclosure are faster and more reliable. Sustrax, our carbon management software, covers Scope 1, 2 and 3 emissions and supports SECR, CSRD, CDP and GHG Protocol reporting.

Scope 1 covers direct emissions from sources you own or control, such as gas boilers and company vehicles. Scope 2 covers indirect emissions from the electricity, heat and steam you buy. Scope 3 covers all other indirect emissions in your value chain, including purchased goods, business travel, commuting, waste and the use of products you sell. For most organisations Scope 3 is the largest share. Read more about supply chain emissions.

Reporting is increasingly required and expected. Large UK companies must disclose energy use and emissions under SECR, larger businesses with EU operations may fall under CSRD, and customers, investors and public sector buyers routinely ask for emissions data through CDP or supplier questionnaires. A robust footprint also shows where to cut costs and gives you a baseline for credible Net Zero targets.

A verified carbon credit represents one tonne of CO2e reduced or removed by an independently audited project, and is retired on a public registry so it cannot be used twice. Credits should support your own reductions, not replace them: use them for emissions you cannot yet avoid, and describe exactly what you funded. Projects on our marketplace are independently rated through CRISP. Learn more about carbon offsetting or browse projects on the Carbon Marketplace.

Measure a baseline across all three scopes, then set near-term and long-term reduction targets aligned with climate science, for example through the Science Based Targets initiative. Deep emission cuts come first, with carbon removals used only for the small residual. To make a formal carbon neutral or Net Zero claim, follow a recognised framework such as ISO 14068-1 or our Net Zero Standard, and check your wording against the green claims rules.

Use our free carbon footprint calculators for your home energy, travel and lifestyle, or the flight carbon calculator for a single trip. You will get a result in tonnes of CO2e along with practical ways to reduce it.