Invest Module

Offsetting Project Marketplace

Offsetting works best as part of a broader reduction strategy, not a substitute for one. Our carbon offset marketplace gives you access to verified projects from around the world and closer to home, so the credits you purchase reflect genuine climate impact and stand up to stakeholder scrutiny.
HOW IT WORKS

A curated marketplace of verified carbon offset projects

Our marketplace brings together projects across a wide range of types and geographies, giving you the flexibility to build an offsetting portfolio that fits your strategy and values.

Range of Projects

Choose projects that align with your business and reporting requirements

Not all carbon credits are equal, and not all projects suit every business. Our marketplace is structured to help you filter and select with purpose:

  • Filter by project type, geography, standard and co-benefit category
  • See full project documentation, including methodology, verification status and credit vintage
  • Understand how each project contributes to relevant UN Sustainable Development Goals
  • Match purchases to your residual emissions after reduction actions have been applied

Offsetting decisions are also supported by your carbon expert, who can advise on project selection, portfolio mix and how to communicate your approach transparently in sustainability reports and disclosures.

measure your footprint dashboard
Local Nature-Based Solutions

Carbon offset projects for businesses buying local

For businesses that want their offsetting investment to have a direct domestic impact, we offer a dedicated selection of UK-based carbon offset projects. These include:

  • Native woodland creation and hedgerow restoration
  • Peatland and wetland restoration across England and Scotland
  • Soil carbon sequestration projects working with UK farmers
  • Blue carbon initiatives in UK coastal habitats

Buying UK credits supports domestic nature recovery goals and is increasingly valued by customers, investors and supply chain partners who want to see local environmental commitment alongside global action.

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"Seedling communicate about sustainability and emissions in a really clear way, not getting caught up in jargon and being realistic on the art of the possible. They are super down to earth and great to work with, to help tackle problems and discuss plans. For the first time, we have a really clear picture of our controllable operation and product impact and can build structures to communicate effectively with customers.”
Grocery Delivery
Francesca Bonafin
BizOps & Impact Lead
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Modern Milkman
"Seedling were an invaluable partner in developing our Carbon Reduction Plan. Their collaborative approach involved accurate emission calculations, presented transparently through a user-friendly platform. Seedling's expertise and dedication made the entire process seamless – I’d recommend Seedling to businesses on a sustainability journey."
Consulting
Kristina Vard
Marketing lead
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FarrPoint
"Seedling has enabled us to play around with our strategy and understand the impact of any changes we make. For instance, if we want to switch 60% of cotton to recycled, we can quantify the impact that this will have. This is so helpful because once we've set targets, the key challenge is understanding how we get there."
Fashion
Mica Phillips
Sustainability Manager
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Margaret Howell
"We wanted to understand and reduce our carbon footprint but felt overwhelmed and didn’t know where to start. Seedling guided us through the process every step of the way, their easy-to-use platform made collecting our business data straightforward, and the team gave us tailored support to build an emissions reduction plan. Thanks to Seedling, we’ve started our journey to Net Zero with confidence."
Creative agency
Ursula Fairlie
Senior Content Manager
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Rationale
"I have found Seedling to be a relatively easy and hassle-free method of carbon tracking. Their web app combines sleek design with AI features, making carbon reporting easy. My favourite feature so far is the AI that matches categories to the expenditure entered. This saves lots of time and is really accurate. The team (Henry) has also been really helpful, providing individualised support where needed."
Construction
Ryan Prance
Operations
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Kennford Tarmacadam
‘When we started with Seedling, we were just beginning our journey towards understanding our carbon footprint. Seedling have been the ultimate professionals and have created a system that is easy to use, so now I have the knowledge to make informed decisions in line with our B Corp status.’
Marketing agency
Sian Eddy
Head of Ops
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Modern

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FAQs

Your questions answered

What are carbon offset projects and how do they work?

Carbon offset projects reduce, avoid or remove greenhouse gas emissions that would otherwise occur. When a business purchases carbon credits from a verified project, each credit represents one tonne of CO2 equivalent that has been reduced or sequestered. Credits are retired on your behalf, meaning they cannot be sold or used again, and the reduction is recorded against your residual emissions.

What is the difference between nature-based and energy-based carbon offsets?

Nature-based offsets sequester carbon through ecological processes, such as tree planting, peatland restoration or forest protection. Energy-based offsets avoid emissions by replacing fossil fuels or improving efficiency, for example through renewable energy deployment or clean cookstove distribution. Both are valid under most reporting frameworks, and many businesses choose a mix to balance permanence, co-benefits and cost.

Are UK carbon offset projects better than international ones?

Neither is inherently superior, but they serve different purposes. UK projects tend to be more expensive per credit but deliver visible domestic environmental and community benefits, which can be important for businesses with UK-focused stakeholders or nature recovery commitments. International projects often offer greater scale and biodiversity co-benefits. The right balance depends on your strategy, budget and reporting context.

How do I know carbon offset credits are legitimate?

Look for credits verified against internationally recognised standards such as the Verified Carbon Standard (Verra), Gold Standard or the UK Woodland Carbon Code. These frameworks require independent auditing, transparent methodologies and public registries where credits can be tracked and retired. All projects in our marketplace meet verified standard requirements, and full documentation is available for each one.

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