Carbon offsetting · in partnership with iOffset
Verified carbon credits, evidenced in the open.
Every credit we sell is registry-issued, third-party rated and retired in your name with a full audit trail. Tell us the tonnage and we come back with a costed portfolio built around your reporting boundary.
Standards and ratings we buy against
We're proud to be a Certified B Corporation, meeting the highest standards of social and environmental performance.
Trusted by Leading Organisations
Offset quote
Tell us the tonnage. We'll price it.
Pricing depends on project type, vintage, rating and volume, so we quote against real inventory rather than a rate card. Send us the essentials and a specialist comes back with a costed portfolio.
- Quote returned within
- 2 working days
- Price held firm for
- 14 days
- Standards available
- Verra · Gold Standard
Not measured your footprint yet? Say so below — we would rather start there than price the wrong number.
Request a quote
Tell us the tonnage and we come back with a costed portfolio built around your reporting boundary.
We use these details to price your portfolio and nothing else.
Who we buy for
Three ways to buy, one standard of evidence.
Businesses
- Bulk purchasing with volume pricing above 1,000 tCO₂e
- Credits retired in your legal entity's name on the registry
- Full audit trail — serial numbers, registry links, retirement certificates
- Pricing held for a reporting year on forward agreements
Events and projects
- Conferences, festivals, tours, construction phases
- One-off footprints measured to a defined boundary and date
- Delegate travel, freight, energy and waste accounted separately
- Retirement certificate and a claim you can publish safely
OaaS® EcoTech
- REST API for pricing, purchase and retirement
- White-label widgets for checkout and booking flows
- Automated certificates issued per transaction
- Sandbox keys, webhooks and monthly reconciliation
Project portfolio
Ask for the current project brochure.
Inventory moves week to week, so we don't publish it. Tell us what you're looking for and we'll send the current brochure — named projects with standard, registry ID, third-party rating, vintage, co-benefits and price per tCO₂e.
Request the brochure
Sent by email within one working day, with prices current at the date of issue.
How we deliver
Four clear steps.
Define the scope
Agree the boundary and the tonnage being compensated, and which residual emissions it covers. If the number isn't measured yet, we measure it first.
Select the projects
We shortlist from live inventory against your budget, standards, geography and co-benefit priorities. You approve the portfolio before anything is bought.
Retire the credits
Credits are cancelled on the registry in your name — not held, not resold. You receive serial numbers and the public retirement record.
Document and report
Retirement certificate, audit pack and disclosure-ready wording for SECR, a CRP or your annual report. Filed in Carbon OS against the reporting year.
Quality and due diligence
We reject more credits than we sell.
Cheap credits are cheap for a reason. Every project passes five tests before it reaches your shortlist, and each test is evidenced in the pack you receive.
Screening outcome, last 12 months
1 in 6
projects reviewed made the inventory
Additionality
The reduction only happens because the credit revenue exists. We test the counterfactual, the financial case and the regulatory baseline, and reject business-as-usual projects however well documented.
Permanence and reversal risk
Nature-based credits carry a buffer pool and a monitoring plan; we state the reversal risk rather than assume it away. Engineered removals are priced on measured storage duration.
Independent verification
Issued under Verra VCS or Gold Standard, validated and verified by an accredited third party against a published methodology. We link the verification report, not a summary of it.
No double-counting
Credits are serialised, tracked and cancelled once. Corresponding adjustments are confirmed where the host country's NDC applies, so the tonne is claimed by you and nobody else.
The ratings layer
Standards say a project is eligible; ratings say how likely the tonne is real. We buy against BeZero and Calyx assessments and publish the grade next to the price — including when it is mid-band.
Where offsetting sits
Measure, reduce, then compensate. In that order.
We would rather sell you a measurement engagement than a credit. Offsetting the wrong number is worse than not offsetting at all, and a portfolio bought before the reduction plan exists usually gets bought twice.
Measure
A verified Scope 1, 2 and 3 footprint from activity data — the baseline everything else is judged against.
Reduce
A costed reduction plan against a science-based trajectory. Abatement first, every time it is cheaper than a credit.
Compensate
Residual emissions only — the tonnes you cannot yet abate, covered by rated credits retired in your name.
Greenwashing guardrails
What you can say, and what you can't.
The CMA Green Claims Code and the ASA both police offset claims. We write your claim wording with you, and we will decline a claim we can't evidence.
A balance achieved by compensating measured emissions with credits, for a stated boundary and period. It is a statement about a year, not a strategy — and it does not require you to have reduced anything.
Legitimate if the boundary is disclosed, the credits are retired and the claim names the period. Not a substitute for a reduction target.
A long-term commitment aligned to 1.5°C: cut absolute emissions by at least 90% across Scopes 1, 2 and 3, then neutralise the residual with permanent removals.
Under the SBTi Corporate Net-Zero Standard, avoidance credits cannot count towards the target. Buying credits does not make you net zero.
Claims we will support
- "We measured our FY25 footprint and compensated 4,200 tCO₂e with verified credits."
- "This event's measured footprint has been offset with Gold Standard credits, retired in our name."
- "Carbon neutral operations (Scopes 1 and 2, FY25) — reductions of 18% since our 2022 baseline."
Claims we will decline
- "Net zero" on the strength of credits alone, with no 90% reduction pathway.
- "Climate positive", "carbon negative" or "100% green" without measured, verified evidence.
- Product-level neutrality claims where no product footprint has been calculated.
- Any claim omitting the boundary, the period or the fact that credits were used.
FAQ
The questions buyers actually ask.
Anything not covered here, ask a specialist directly — we answer in writing.
Get a proposal
Tell us the tonnage and the deadline.
You'll get a costed portfolio with named projects, ratings, vintages and our fee shown separately — usually within two working days.
- 01Emailed quote, firm for 14 days, sent to a work address.
- 02Specialist call to shape the portfolio and the claim.
Get an offset proposal
Every credit we sell is registry-issued, third-party rated and retired in your name with a full audit trail.
We use these details to price your portfolio and nothing else. No newsletter, no third-party sharing.