Reducing your business’s carbon footprint is no longer just a corporate social responsibility exercise. Customers, employees, investors and regulators increasingly expect organisations to understand—and reduce—their environmental impact.

Whether you run a small office, a growing company or a global organisation, meaningful progress starts with measuring emissions, prioritising the biggest sources and making practical changes across operations, workplaces, commuting and business travel.

This guide explains how to reduce your company’s carbon footprint, build a sustainable travel policy, improve office sustainability and use high-quality carbon offsetting responsibly for emissions that cannot yet be avoided.

What is a business carbon footprint?

A carbon footprint is the total amount of greenhouse gases generated by an activity, product, person or organisation. It is usually measured in carbon dioxide equivalent, or CO₂e, which accounts for carbon dioxide and other greenhouse gases such as methane.

For a business, this can include emissions created by:

• Electricity, heating and cooling in offices or facilities

• Manufacturing, packaging and distribution

• Company vehicles and employee commuting

• Business flights, rail journeys, hotels and car hire

• Purchased goods, services and technology

• Waste, food consumption and office supplies

• Digital services, data centres and web hosting

Even a seemingly simple item, such as a bottle of water consumed in an office, has an environmental impact. Its footprint includes the energy and resources used to source the water, manufacture the bottle, package it, transport it and operate the businesses involved in supplying it.

Why should businesses reduce their carbon footprint?

Reducing emissions helps limit the effects of climate change, conserve natural resources and reduce environmental pollution. It can also deliver clear commercial benefits.

A lower-carbon business can:

• Reduce energy, fuel, material and waste costs

• Strengthen its reputation with customers, employees and partners

• Support ESG, net-zero and corporate social responsibility commitments

• Improve readiness for changing environmental legislation and reporting requirements

• Attract employees who want to work for responsible organisations

• Build more resilient supply chains and operating models

Sustainability managers often lead this work by analysing a company’s environmental impact, setting reduction targets, developing policies and helping teams comply with relevant environmental requirements. However, lasting progress requires participation from leadership, procurement, finance, facilities, travel managers and employees—not just one sustainability team.

Start with the emissions hierarchy: avoid, reduce, replace, then offset

The most credible sustainability strategies put direct emissions reductions first. Before purchasing offsets, businesses should focus on avoiding unnecessary emissions, reducing those that remain and replacing high-carbon options with lower-carbon alternatives.

A practical order of action is:

1. Avoid: eliminate unnecessary travel, energy use, waste and purchases.

2. Reduce: make essential activities more efficient.

3. Replace: choose lower-carbon energy, transport, suppliers and equipment.

4. Offset residual emissions: support independently verified projects only after taking meaningful reduction action.

This approach helps companies avoid treating carbon offsetting as a substitute for reducing emissions at source.

1. Measure your current carbon footprint

You cannot manage what you do not measure. Begin by calculating the greenhouse gas emissions generated across your operations, then identify the areas responsible for the largest share.

For many businesses, emissions are grouped into three categories:

• Scope 1: direct emissions from sources your company owns or controls, such as company vehicles or on-site fuel use.

• Scope 2: indirect emissions from purchased electricity, heating, steam or cooling.

• Scope 3: indirect emissions across your value chain, including business travel, commuting, purchased goods and services, freight and waste.

Business travel is often a significant Scope 3 category. More broadly, Scope 3 emissions can account for a substantial share of a company’s total footprint; the UN Global Compact has reported that they can represent around 70% of a business’s carbon footprint.

You can measure emissions through internal data, specialist carbon-accounting tools, travel reporting platforms or an external sustainability consultancy. A consultancy can be particularly useful when your organisation needs a full audit, reduction roadmap, employee training or support with environmental certifications.

Once you have a baseline, set measurable targets. For example, you might aim to reduce emissions per employee, per kilometre travelled, per unit produced or per pound of revenue.

2. Apply the three Rs: reduce, reuse and recycle

The principles of reduce, reuse and recycle apply to nearly every part of a business.

Start by reviewing everyday purchasing and operational habits:

• Can you buy fewer supplies or order less frequently?

• Can durable items replace disposable alternatives?

• Can packaging be reduced or redesigned?

• Can materials be reused, repaired or recycled?

• Can you choose suppliers with lower-waste products and operations?

Waste reduction can lower both emissions and costs. It also gives employees visible, practical ways to participate in your sustainability goals.

3. Switch to renewable electricity and improve energy efficiency

Energy use is often one of the fastest areas for businesses to improve. Ask your current energy supplier whether it offers a renewable electricity tariff, or consider switching to a provider that can verify renewable energy sourcing.

Alongside renewable energy procurement, reduce the amount of energy your business needs in the first place. Review lighting, heating, cooling, appliances, equipment schedules and building controls.

Energy-saving measures can include:

• Replacing inefficient equipment with energy-efficient models

• Installing LED lighting and occupancy sensors

• Optimising heating and cooling settings

• Improving insulation and building management systems

• Using smart meters to identify waste

• Turning off unused equipment outside working hours

These changes reduce emissions while helping to lower utility bills.

4. Review suppliers, procurement and web hosting

A company’s purchasing choices can have a major impact on its indirect emissions. Assess whether suppliers have credible environmental policies, emissions-reduction targets and transparent sustainability reporting.

Prioritise products and services that are durable, repairable, reusable, recyclable and responsibly sourced.

Digital infrastructure also matters. If your website, software or servers are hosted externally, consider the energy used by data centres. Look for web-hosting providers that combine energy-efficient technology, renewable energy procurement, efficient equipment and transparent environmental commitments.

5. Reduce waste, food waste and single-use products

Waste has an environmental impact long before it reaches a bin. Every discarded product represents the resources used to grow, manufacture, package and transport it.

Food waste deserves particular attention. The UN Food and Agriculture Organisation estimates that around one-third of food produced is lost or wasted. When food is wasted, the energy and resources used to produce it are wasted too. Food that decomposes can also release methane, a potent greenhouse gas.

Businesses with kitchens, cafes or canteens can reduce food waste by:

• Tracking what is thrown away and why

• Improving portioning and ordering

• Donating safe surplus food where possible

• Composting food waste

• Using food waste for animal feed or other recovery programmes where appropriate

Replace disposable cups, cutlery, plates and water bottles with reusable alternatives. For example, an estimated 50 billion paper coffee cups are thrown away each year in the United States. Providing reusable mugs and kitchenware is a straightforward way to reduce office waste.

6. Make commuting greener

Employee commuting can add significantly to a company’s indirect emissions. Support lower-carbon commuting by offering practical alternatives to single-occupancy car journeys.

Consider:

• Subsidised public transport passes

• Cycle-to-work programmes or secure bike storage

• Car-sharing and carpooling schemes

• Electric vehicle charging where feasible

• Flexible working hours that support public transport use

• Hybrid and remote-working policies

A hybrid model can reduce commuting emissions while also cutting office energy use and operating costs. For many teams, working from home two or three days per week can make a meaningful difference without eliminating in-person collaboration.

7. Improve your company vehicle fleet and road travel

If road travel is essential to your business, focus on reducing fuel consumption and moving towards lower-emission vehicles.

Practical steps include:

• Replacing older vehicles with electric or lower-emission models

• Choosing smaller, fuel-efficient vehicles where appropriate

• Using route-planning tools to reduce unnecessary mileage

• Maintaining tyres, engines and vehicles properly

• Training drivers in fuel-efficient driving techniques

• Consolidating deliveries and appointments where possible

Where several employees need to travel together, car-sharing may reduce emissions per person compared with separate journeys.

8. Make business travel more sustainable

Travel may be essential for building relationships, serving customers and completing work that cannot be done remotely. However, it is also a significant source of emissions for many organisations.

Start by asking whether each trip is necessary. Video calls and virtual events cannot replace every face-to-face meeting, but they can reduce avoidable travel.

For essential trips, make lower-carbon choices by:

• Selecting rail instead of air where practical

• Choosing direct flights to avoid additional take-offs and landings

• Flying economy class when air travel is necessary

• Comparing the emissions of airlines and itineraries

• Using public transport at the destination

• Choosing electric or hybrid car hire where available

• Booking environmentally responsible accommodation

• Tracking travel emissions through your booking and reporting system

For a detailed framework, use a sustainable travel policy template to set clear rules and make greener choices easier for employees.

9. Support credible environmental projects and community action

Companies can contribute to environmental progress beyond their own operations by supporting credible environmental initiatives.

This might involve:

• Participating in local conservation or clean-up projects

• Supporting biodiversity or habitat-restoration efforts

• Providing employee volunteering opportunities

• Donating to credible environmental organisations

• Partnering with community groups on waste-reduction or education programmes

These activities should complement, rather than replace, emissions-reduction work within your business.

10. Educate and involve employees

Employees make many of the day-to-day decisions that determine whether sustainability policies succeed. Regular education, clear expectations and accessible tools are essential.

Build sustainability into onboarding, internal communications, procurement guidance, facilities processes and travel booking workflows. Explain not just what employees should do, but why it matters and how their choices contribute to company goals.

Ongoing engagement can include:

• Quarterly sustainability updates

• Team challenges or recognition programmes

• Clear recycling and waste signage

• Training on sustainable travel and purchasing choices

• Feedback channels for employees to suggest improvements

• Department-level progress updates

Sustainability should be an ongoing operational practice, not a one-off campaign.

How to reduce your office carbon footprint

Office emissions can come from energy use, heating and cooling, workplace equipment, food and drink, waste, commuting and business travel. The following measures can help make your workplace more energy-efficient and lower-waste.

1. Choose energy-efficient office equipment

When buying or replacing computers, printers, kitchen appliances, monitors or other equipment, choose energy-efficient models. Look for recognised energy-efficiency ratings and consider the total cost of ownership, not only the purchase price.

Energy-efficient equipment can reduce electricity consumption and lower bills over its lifetime.

2. Upgrade office lighting

Replace outdated lighting with LED bulbs and fixtures. LEDs use less energy and typically last longer than conventional alternatives.

Maximise natural daylight where possible with adjustable blinds or light window coverings. Motion sensors, timers and dimmable lighting can further reduce unnecessary electricity use in meeting rooms, kitchens, corridors and bathrooms.

3. Optimise heating and air conditioning

Heating and cooling can account for a substantial proportion of office energy use. Set temperature policies that balance employee comfort with energy efficiency, and avoid heating or cooling unused areas.

Review:

• Thermostat settings

• Equipment maintenance schedules

• Insulation and draught-proofing

• Zoned heating and cooling controls

• Window coverings and solar shading

• Out-of-hours building schedules

A well-maintained system uses less energy and creates a more comfortable workplace.

4. Build a paperless culture

Most businesses can reduce printing dramatically. Store documents securely in shared cloud systems, use electronic signatures and design digital-first approval workflows.

A paperless approach can reduce spending on paper, printers, ink, maintenance, filing and physical storage. It can also improve collaboration, document security and version control.

Where printing is unavoidable, default to double-sided printing and use recycled paper.

5. Make recycling easy

Recycling only works when employees have clear, convenient options. Provide enough clearly labelled bins and make guidance specific to the waste streams accepted in your local area.

Place recycling points where waste is generated, including kitchens, print areas, meeting rooms and desk clusters. Explain what can and cannot go in each bin to reduce contamination.

6. Rethink office coffee and refreshments

Small changes to food and drink purchasing can reduce waste and support more responsible supply chains.

Consider:

• Choosing Fairtrade coffee produced with more responsible farming and trading practices

• Avoiding non-recyclable coffee capsules

• Composting coffee grounds through an appropriate service

• Providing reusable mugs, glasses and cutlery

• Buying food and drinks in bulk where this reduces packaging

• Choosing organic and Fairtrade products where possible

If your company provides catering, work with suppliers that can offer seasonal menus, lower-waste service and vegetarian or plant-forward options.

7. Replace bottled water with filtered tap water

Bottled water creates plastic waste and requires energy for manufacturing and transport. Installing a tap-water filter, water dispenser or refill station can give employees easy access to drinking water without relying on single-use bottles.

8. Use rechargeable batteries

Remote controls, calculators, fire alarms, wireless devices and other office equipment often require batteries. Where suitable, use rechargeable batteries instead of single-use alternatives. This reduces waste and can lower replacement costs over time.

9. Encourage greener commuting and flexible work

Support employees who walk, cycle, use public transport, carpool or drive electric vehicles. A hybrid working pattern can also reduce both commuter emissions and office energy demand.

The best approach will depend on your location, workforce and public transport access, so ask employees what would make lower-carbon commuting more practical for them.

10. Make business travel part of your office sustainability plan

Office sustainability should not stop at the building. Business travel can be a material part of an organisation’s overall footprint.

By 2050, air travel is expected to account for between 12% and 27% of global greenhouse gas emissions, while business travel represents a meaningful portion of total travel demand. Integrating greener travel choices into company policy can therefore support wider operational emissions targets.

How to reduce the carbon footprint of business travel

Business travel remains necessary for many organisations, but it can be managed more thoughtfully. The goal is not always to eliminate travel—it is to make each trip more purposeful and lower carbon.

1. Calculate business travel emissions

Track emissions from flights, rail, hotels, car hire and other travel services. Reporting helps you identify the routes, teams, travel classes and suppliers responsible for the largest share of travel-related emissions.

A business travel platform can make this easier by showing emissions data at the point of booking and consolidating reporting across trips.

With Perk, organisations can use Green Trip to understand and track the carbon footprint generated by corporate travel bookings.

2. Create a green business travel programme

A green travel programme sets expectations for how employees should plan, book and approve business trips.

Start with your travel data, then define clear goals. These may include reducing flight emissions, increasing rail adoption, limiting premium cabin travel or improving the proportion of direct flights.

Your programme should explain:

• When travel is justified

• When virtual meetings should be considered

• When rail should be chosen over air travel

• Which airlines, hotels and car-hire options are preferred

• How travel emissions will be monitored

• Who approves exceptions

• Which teams own implementation and reporting

A green business travel programme works best when sustainability requirements are built into booking and approval workflows rather than buried in a policy document.

3. Fly economy when flying is necessary

First- and business-class seats can generate substantially more emissions per passenger than economy seats because they take up more space and often come with additional luggage allowances and service requirements. One report found that premium seats can generate up to four times the emissions of economy seating.

For many domestic and short- to medium-haul trips, economy travel can reduce emissions and costs without significantly affecting the traveller experience.

4. Choose lower-emission airlines and itineraries

Not every airline or itinerary creates the same level of emissions. When comparing options, consider:

• Emissions for the specific flight and route

• Aircraft type and fleet efficiency

• Airline sustainability policies

• The use of newer aircraft on long-haul routes

• Whether the airline is investing in lower-carbon technology or sustainable aviation fuel

• Whether the airline offers transparent, credible climate programmes

Create a preferred-airline list for common routes and review it periodically as airline fleets and policies change.

5. Avoid unnecessary layovers

Take-offs and landings are fuel-intensive, so direct flights are generally preferable to multi-leg itineraries when flying is unavoidable.

If a layover cannot be avoided, aim for an efficient connection rather than an overnight stop requiring additional accommodation and ground transport.

6. Choose rail and public transport where practical

Rail travel typically generates fewer emissions than flying and, for many short-haul routes, can be competitive on total journey time once airport transfers and security queues are considered.

At the destination, encourage employees to use public transport, walking, cycling or shared mobility options rather than individual taxis or rental cars where practical.

7. Select sustainable accommodation

Hotels use energy for heating, cooling, lighting, laundry, catering and guest services. When booking accommodation, look for properties with credible environmental certifications or clearly stated sustainability practices.

Useful indicators can include:

• Energy-efficiency and renewable-energy measures

• Water conservation programmes

• Waste-reduction and recycling systems

• Reduced single-use plastics

• Responsible sourcing and food-waste policies

• Transparent sustainability reporting

Make sustainable accommodation a preferred option in your travel policy without compromising traveller safety, accessibility or practicality.

8. Choose electric or efficient ground transport

When car hire or road travel is necessary, select electric or hybrid vehicles where suitable and charging infrastructure is available. If electric vehicles are not practical, choose smaller, efficient vehicles and encourage fuel-efficient driving.

For city journeys, public transport may provide a lower-carbon and more convenient alternative to driving, particularly where traffic and parking are significant.

9. Use available green travel tax incentives

Depending on where your business operates, it may be eligible for tax incentives related to electric vehicles, low-emission transport, public transport support or environmental investments.

Tax treatment varies by country and changes over time, so consult a qualified tax adviser before making decisions based on potential incentives.

10. Offset unavoidable travel emissions responsibly

Even well-managed travel programmes can produce residual emissions. Carbon offsetting can be used to support verified climate projects after a business has taken reasonable steps to avoid and reduce emissions.

Perk’s Green Trip carbon offsetting programme is designed to help businesses offset emissions from bookings made through the platform, including flights, rail, hotels and other travel services. It calculates travel-related emissions and directs funding towards independently certified climate projects.

How to create a sustainable travel policy

A sustainable travel policy helps employees make consistent, lower-carbon decisions while allowing the organisation to maintain the travel necessary for commercial success.

Why does your company need a sustainable travel policy?

Travel-related emissions are often part of a company’s Scope 3 footprint. A sustainable travel policy provides employees with clear guidance, tools and decision-making criteria for reducing those emissions.

A strong policy should consider all three dimensions of sustainability:

• Environmental: reducing emissions, waste and resource use

• Social: supporting traveller wellbeing and local communities

• Economic: keeping travel practical and cost-effective

The policy should be realistic. If it is too complex, difficult to follow or disconnected from booking workflows, compliance will suffer.

Step 1: calculate your baseline

Measure the emissions generated by your current travel programme. Identify the highest-emitting routes, departments, trip types and suppliers.

If your company is growing quickly, consider tracking emissions per employee, per kilometre or per trip in addition to total emissions. This can provide a more meaningful measure of efficiency while overall travel volume changes.

Step 2: evaluate the findings

Use your data to identify the biggest opportunities. For example:

• Are certain routes suitable for rail instead of air?

• Are indirect flights creating avoidable emissions?

• Are premium cabin bookings common?

• Are travellers using high-emission ground transport when public transport is available?

• Are some destinations better served by virtual meetings?

• Are travel emissions concentrated in certain teams or event types?

Balance emissions goals with cost, safety, accessibility and business requirements.

Step 3: set clear travel rules

Make your policy easy to understand and action. Examples of policy rules include:

• Choose rail over air travel for journeys under a defined duration.

• Select direct flights when flying is necessary.

• Require economy class for flights unless a documented exception applies.

• Use preferred lower-emission airlines where possible.

• Choose public transport, electric vehicles or hybrid car hire for local travel.

• Book accommodation with credible sustainability practices.

• Combine multiple meetings into one trip where practical.

• Require approval for flights or trips above defined emissions thresholds.

Embed these rules in your booking tool so employees can see compliant options while making arrangements.

Step 4: address residual emissions through credible offsetting

A sustainable travel policy should be clear that offsetting is not a substitute for reducing emissions. However, high-quality offsets can help address emissions that remain after avoidance and reduction measures.

Choose offsetting programmes that provide transparent information about projects, verification and the impact of funded activities. Learn more about certified carbon offsetting projects before selecting a provider.

How to encourage employees to follow a sustainable travel policy

Communicate simple, practical guidance

Avoid overwhelming employees with carbon-accounting terminology. Focus on clear choices they can make, such as “take rail for this route,” “book economy,” “choose a direct flight” or “use public transport from the airport.”

Explain the business’s goals and regularly share progress so employees can see the collective impact of their choices.

Use technology to guide decisions

Travel policy compliance improves when sustainable options are visible during the booking process. An online booking platform can surface lower-emission choices, automate approvals for compliant itineraries and flag bookings that require review.

Perk can help companies incorporate travel rules into booking workflows through its automated travel policy tools.

Use incentives and recognition

Friendly competition can help make sustainability more engaging. Consider recognising teams that reduce emissions per trip, increase rail adoption or consistently make lower-carbon travel choices.

Ensure any incentive programme is fair: teams with different travel needs should be measured against relevant benchmarks rather than total emissions alone.

Invite feedback and review performance

A travel policy should evolve. Review emissions reports, gather feedback from travellers and travel managers, and identify rules that are difficult to follow or no longer fit business needs.

Regular reviews help you improve both policy design and employee adoption over time.

Carbon offsetting for businesses: what it is and how it works

Carbon offsets are financial contributions to projects intended to reduce, avoid or remove greenhouse gas emissions elsewhere. Companies typically purchase carbon credits to compensate for residual emissions that remain after reduction efforts.

One carbon credit generally represents one metric tonne of CO₂e avoided, reduced or removed.

Offset projects may include:

• Reforestation and forest conservation

• Preventing deforestation

• Methane capture

• Renewable-energy projects

• Biogas programmes

• Direct carbon capture

• Regenerative agriculture

• Clean cooking and clean-water initiatives

Offsetting can support valuable climate and community projects, but it should be approached carefully. Carbon credits vary significantly in quality, and businesses should avoid making misleading “carbon neutral” or “net zero” claims without robust evidence and a credible reduction strategy.

What makes a carbon offset programme reliable?

A credible carbon offset programme should provide evidence that projects are real, additional, measurable and independently verified.

Look for programmes that:

• Deliver a tangible and measurable emissions impact

• Use credible methodologies to calculate reductions or removals

• Address permanence, especially for nature-based projects

• Demonstrate that the project would not have happened without carbon-credit funding

• Use independent third-party verification

• Provide transparent project documentation and reporting

• Benefit local communities where relevant

• Avoid double-counting carbon credits

• Are certified against recognised standards, such as Verra, the Gold Standard, the American Carbon Registry or the Climate Action Reserve

Poor-quality offsets can expose businesses to greenwashing concerns. A survey commissioned by AiDash found that 43% of chief sustainability officers sought ratings-agency assurance for offsets, while 41% reported trust concerns. Due diligence is therefore essential.

Carbon offsetting business travel and flights: common questions

What are carbon offsets for flights?

Flight offsets are contributions intended to compensate for emissions associated with air travel. The amount paid is generally based on an estimate of the emissions generated by a specific flight.

Funds may support projects such as forest conservation, renewable energy, methane capture, efficient cooking technology or community-led climate initiatives.

How are flight emissions calculated?

There is no single exact figure for a flight’s emissions because calculations depend on multiple variables. More comprehensive calculators may consider:

• Distance travelled

• Route and altitude

• Aircraft type

• Seat class

• Number of passengers

• Aircraft occupancy

• Stopovers

• Cargo allocation

• Taxiing time and fuel use

Premium cabins generally have higher emissions per passenger because each passenger occupies more space. Results from different calculators may vary because they use different assumptions and methodologies.

How can businesses buy carbon offsets for flights?

Businesses can generally offset flights in three ways:

1. Through an airline: Some airlines offer offsetting options during booking.

2. Through a travel platform: A corporate travel platform may calculate trip emissions and facilitate offsetting across flights, hotels, trains and other bookings.

3. Directly from a carbon project provider: This gives businesses more control over the projects they support, but requires careful research, carbon calculations and administration.

For organisations booking travel through Perk, Green Trip provides an integrated way to calculate and offset travel-related emissions.

How much do flight carbon offsets cost?

Prices vary significantly based on the offset provider, project type, verification standard, flight emissions calculation and the price of carbon credits.

Carbon credits are commonly sold per tonne of CO₂e. The cost of offsetting a specific trip will depend on the emissions estimate and the quality and type of project supported.

A low price alone should not be the deciding factor. High-quality projects with robust verification, transparent reporting and meaningful co-benefits may cost more than lower-quality alternatives.

Are airline carbon offset programmes legitimate?

Some airline programmes fund credible projects, but the quality and transparency of programmes vary. Before purchasing airline offsets, check:

• Which projects receive the funding

• Which verification standard applies

• Whether the credits are independently audited

• Whether project documentation is publicly available

• Whether the programme clearly distinguishes emissions reduction from offsetting

• Whether claims made by the airline are specific and evidence-based

Are carbon offsets tax-deductible in the UK?

Tax treatment depends on the nature of the payment, the organisation receiving it and the applicable tax rules. Carbon offsetting is not automatically tax-deductible in every situation.

The UK operates its own emissions trading system for certain energy-intensive sectors, including aviation and power generation. However, voluntary offset purchases and their tax treatment should be reviewed with a qualified UK tax adviser.

Six carbon offset programmes and providers for businesses

The best carbon offset programme depends on your company’s emissions sources, reporting needs, budget, preferred project types and level of due diligence. The following organisations offer different approaches to carbon offsetting.

1. Green Trip

Green Trip is Perk’s carbon offsetting solution for business travel. It is designed for organisations that want to calculate and address emissions from corporate flights, rail, accommodation and other travel booked through the Perk platform.

Green Trip calculates travel-related emissions and directs funding towards independently certified projects. Projects are selected to support emissions reductions and broader environmental or community benefits, including initiatives such as biogas capture, forestry, hydropower and wind energy.

2. TerraPass

TerraPass offers carbon offsetting options for businesses, individuals and events. Its website includes calculators for business activities, events and daily life, helping users estimate emissions and understand potential offset costs.

TerraPass supports projects such as landfill-gas capture, renewable energy and forest management. Its credits are certified through recognised third-party standards, including Verra, Gold Standard, the American Carbon Registry and the Climate Action Reserve.

3. NativeEnergy

NativeEnergy is a Public Benefit Corporation and Certified B Corp that has operated since 2000. It offers carbon calculators and offsetting options for businesses, travel, freight, events and households.

Its projects include regenerative agriculture, clean water, renewable energy, reforestation and ecosystem protection. NativeEnergy works with third-party standards and verification bodies, including Gold Standard, Verra, the American Carbon Registry, Plan Vivo and Climate, Community & Biodiversity Standards.

4. Sustainable Travel International

Sustainable Travel International focuses on protecting destinations, supporting communities and addressing climate change, pollution and waste associated with tourism.

Its carbon calculator helps travellers estimate flight-related emissions and supports projects involving clean energy, blue carbon, biodiversity and forest conservation. Projects may be verified through standards such as Gold Standard, Verra and the Climate Action Reserve.

5. Carbon Checkout

Carbon Checkout is designed for e-commerce businesses. It can be integrated into online stores so customers can contribute to carbon projects while making purchases.

Contributions are pooled to support renewable-energy and landfill-gas-capture projects. Projects are independently verified through standards and mechanisms including Verra, Gold Standard and the Clean Development Mechanism.

6. myclimate

myclimate offers carbon footprint calculators, climate education programmes and certified climate projects for businesses, NGOs and individuals.

Its initiatives include clean-water projects, biogas plants, solar cooking technology and other programmes designed to reduce emissions while supporting communities. It works with recognised standards including Plan Vivo and Gold Standard.

Build a lower-carbon business one decision at a time

Reducing a business’s carbon footprint requires more than one initiative. It involves better measurement, smarter energy use, lower-waste procurement, greener commuting, sustainable travel choices and active employee participation.

Start with the areas where your company has the greatest influence. Measure your footprint, set practical targets, build sustainability into daily operations and review progress regularly.

For businesses with significant travel activity, a well-designed sustainable travel policy and transparent travel-emissions reporting can make a meaningful difference. Explore how Perk can support more sustainable business travel while helping your teams make informed choices at the point of booking.