Isometric: The MRV-First Registry That Flipped the VCM’s Conflict of Interest

How a buyer-pays verification model, continuous tonne-by-tonne issuance through the Certify platform, ~one-month verification cycles, and open protocol development peer-reviewed by a 300+ Science Network earned Isometric one of the most structurally significant endorsements in the ICVCM’s CCP-Eligible assessment.

By Abhishek Das • April 2026 • 14 min read

1. The Trust Gap the Legacy VCM Could Never Fix
2. Origin, Funding & Governance
3. The Three Structural Bets That Define Isometric
4. MRV as the Product — Not a Deliverable
5. The Speed Advantage — ~1 Month, Not ~3 Years
6. Open, Co-Authored Protocol Development — and the Debate Around It
7. The ICVCM Assessment Report — What It Actually Said
8. The Public-by-Default Science Platform
9. The 1,000-Year Durability Threshold
10. Dual Endorsement — ICVCM CCP-Eligible & CORSIA Phase 2
11. The Six CCP-Labelled Protocols
12. Suppliers, Buyers & First CCP Issuances
13. Protocol Pipeline & What’s Next
14. Commercial Implications for Developers & Buyers
15. Frequently Asked Questions
16. What Suppliers & Buyers Should Do Now

1. The Trust Gap the Legacy VCM Could Never Fix

Every integrity scandal that cratered voluntary carbon market confidence between 2022 and 2025 — the REDD+ overstatement debates, the Guardian and Die Zeit investigations, the peer-reviewed charges of over-crediting in Improved Forest Management, and the repeated public re-pricings of earlier vintages — traced back to the same structural flaw. The project developer paid the registry, chose the auditor, and funded its own verification. You can write better rules, tighter methodologies, more conservative baselines, stricter additionality tests — and the audit still gets paid by the party being audited.

ICVCM’s Core Carbon Principles framework, published in 2023 and now anchoring the 2026 VCM reset, is an attempt to correct this by grading registries on governance, independence, quantification and transparency. Seven existing programmes have reached CCP-Eligible status so far, and most are working through methodology-level approvals one protocol at a time. But retrofitting structural integrity into a business model built for scale is slow — and in several legacy programmes, structurally impossible without a fee-model redesign the existing buyer base has never agreed to underwrite.

Isometric took a different bet. It didn’t try to retrofit integrity into the legacy model. It rebuilt the business model so the conflict of interest could not exist in the first place. That single design choice — far more than any individual protocol — is the story of Isometric, and it’s why the ICVCM assessment report’s findings on Isometric’s governance are worth reading in their own right.

2. Origin, Funding & Governance — A Science Registry, Not a Credit Factory

Isometric was founded in London in 2022 by CEO Eamon Jubbawy, a serial technology entrepreneur whose prior companies include Onfido (acquired by Entrust in 2024 for a reported $650m), Safi and Sequence. The thesis was simple: carbon removal can only scale if buyers can trust that a tonne is actually a tonne. In July 2023, Isometric closed a $25 million seed round led by Lowercarbon Capital — one of the largest seed rounds in VCM history — with participation from Plural, Paladin Capital and Stripe. The same names underwriting the durable CDR demand side (Frontier, Stripe, Microsoft via advance market commitments) were also underwriting the integrity infrastructure.

The Isometric Standard — the top-level rulebook — was first published on 4 October 2023 and has moved through multiple open, versioned revisions since (v1.2, v1.3, v1.7, v1.9). Each revision has its own public comment window, changelog and response-to-comments document; the Standard is versioned like software, not like a PDF. Protocols sit on the public Science Platform with every default factor, uncertainty parameter and review comment openly viewable. An independent Science Network of 300+ researchers and practitioners — not a closed expert panel — peer-reviews every protocol draft. Reviewers are matched to pathways by discipline, receive an honorarium, and their feedback is published alongside the certified protocol.

This structure was the first thing the ICVCM assessment report flagged as a structural strength — not a marketing claim, but a documented design choice.

3. The Three Structural Bets That Define Isometric

Everything downstream — the CCP label, the 1,000-year durability threshold, the Certify platform, the dMRV partnerships, the open protocol development model — flows from three decisions Isometric made on day one.

3.1 Buyer Pays, Not Developer

Isometric is the only major registry where the project developer does not pay for verification. Buyers pay Isometric directly via a flat fee scaled to order size, on a schedule decoupled from credit delivery. This eliminates the most obvious conflict of interest in the legacy voluntary carbon market: a registry whose revenue scales with the number of credits it issues to the developer that pays it. Isometric’s fee is the same whether the verification ultimately issues 10,000 tonnes or zero, which breaks any possible trade-off between the registry’s bottom line and scientific integrity.

3.2 Isometric Appoints and Pays the VVB

In the legacy model, the project developer selects and pays the Validation and Verification Body — exactly the arrangement that landed legacy VCM programmes in years of independent-research critique on auditor conflicts of interest. Isometric appoints the VVB itself and pays them directly out of the buyer’s fee, so the auditor has no commercial incentive to please the developer it audits. This is a line-item finding in the ICVCM assessment report and one of the reasons Isometric cleared the “robust independent third-party validation and verification” criterion cleanly when its programme was assessed.

3.3 Continuous, Tonne-by-Tonne Issuance — Not Batched Monitoring Periods

Legacy registries issue credits at the end of a monitoring period — typically every one to five years — based on a consultant-produced monitoring report that aggregates the period’s reductions or removals into a single issuance event. This is rigorous in its own way, but the cadence is measured in years, the verification is retrospective, and the developer’s working capital is locked up from the moment the first tonne is produced until the moment the batch is finally issued and sold.

Isometric does something different: credits are issued on a continuous, tonne-by-tonne cadence through the Certify platform. As measurement data streams in, Certify runs it through the certified protocol’s quantification and uncertainty rules, surfaces any gaps to both the developer and the VVB, and produces tonne-level certificates as soon as verification clears. There is no multi-year wait for a monitoring report, no batch issuance event, no “period-end” accounting cliff. The ledger is closer to real-time than to annual.

Together, these three bets mean the incentive gradients inside Isometric point in a fundamentally different direction from the legacy VCM. And that is what the ICVCM found when it ran the Assessment Framework against the Isometric programme.

4. MRV as the Product — Not a Deliverable

This is the single biggest thing most VCM coverage of Isometric misses, and it’s the thing that matters most for the 2026 era. Isometric is not a registry that does MRV. It is an MRV company that also happens to run a registry.

In a traditional VCM workflow, MRV is a 50-to-200-page PDF produced by a consultant once every five years, uploaded as a monitoring report, and sampled by the VVB. The registry’s role is essentially to accept the PDF, track issuances and operate a serial-number ledger. Isometric inverts this. MRV is the product surface — everything else is plumbing.

4.1 The Certify Platform

Launched in 2024 and expanded through 2025, Isometric Certify is a verification workflow engine where project developers submit measurement data continuously rather than once per monitoring period. The platform ingests raw field and sensor data, runs it through the certified protocol’s uncertainty and quantification rules, surfaces gaps to both the developer and the appointed VVB in near-real-time, and produces an auditable tonne-level certificate once verification clears. The VVB works inside Certify alongside the developer, flagging issues as data arrives rather than reviewing a finalised report at the end of a multi-year window.

4.2 Seven dMRV Providers, Plugged In

In 2024–25 Isometric announced certification partnerships with seven leading digital MRV providers: Mangrove Systems, Carbonfuture, Cula, Alcove, Offstream, Terraspect and Bluelayer. A developer deploying any of these sensor-and-data platforms on a biochar kiln, an enhanced weathering field or a subsurface injection well can stream validated measurement data directly into Certify, rather than reconstructing it retroactively into a monitoring report. No other ICVCM CCP-Eligible registry has this. It is a quiet but decisive structural advantage in any pathway where measurement is the bottleneck — which is all of them, in durable CDR.

4.3 Uncertainty, Not Averages

The Isometric Standard treats uncertainty as a first-class citizen, not a rounding error. Every protocol publishes its uncertainty model — what’s measured directly, what’s modelled, what the 90% confidence interval looks like, and how that translates into a deduction from gross removals before a tonne is issued. Credits are issued after the deduction, not before. In practice this means a 1,000 tCO₂ removal event with 15% measurement uncertainty does not issue 1,000 credits — it issues the conservative-side tonnage the Standard’s uncertainty rules yield. This is one of the sharpest departures from legacy voluntary carbon market accounting, where gross removals are often issued as credits and uncertainty is handled later via a separate buffer pool.

5. The Speed Advantage — ~1 Month, Not ~3 Years

Here is the single most commercially decisive thing about Isometric that most VCM coverage misses.

In a legacy VCM workflow, the path from “I produced this tonne” to “I sold this credit and got paid” routinely takes two to three years. The developer commissions a consultant to write the project design document, waits for validation (often 12–18 months), waits for a monitoring period to accumulate (another 12–24 months), commissions the verification, waits for the VVB’s report, submits to the registry, waits for issuance, and finally receives credits into the registry account. The working-capital drag on an early-stage developer is brutal — often dominant in project economics.

Isometric’s Certify platform has compressed that cycle to roughly one month from measurement to issuance, without relaxing any of the scientific rigour in the underlying protocol. A tonne measured in month t can be a verified, CCP-labelled, retired-to-a-buyer credit by month t+1. Three things make that possible:

• Continuous data ingestion. Certify accepts measurement data as it streams in from field instruments and dMRV providers rather than as a batch at the end of a monitoring period.
• Machine-readable protocols. The Isometric Standard and each certified protocol are written as structured, machine-readable rules that Certify can apply automatically. Uncertainty deductions, additionality checks, buffer allocations and quantification formulas are coded, not PDF’d.
• VVB-in-the-loop. The VVB works inside Certify alongside the developer, flagging gaps as data arrives rather than reviewing a finalised report at the end of a multi-year window.

The cash-conversion impact for a developer is roughly 12–24 months shorter than any legacy registry can deliver. That compresses working-capital needs, reduces the cost of capital, and — for venture-backed DAC, BiCRS, bio-oil and biochar developers — can be the difference between a bankable project and one that dies on the treasury line. For buyers, it means the time between signing an offtake and taking delivery of verified tonnes is counted in weeks, not years.

6. Open, Co-Authored Protocol Development — and the Debate Around It

The second distinctive feature of the Isometric model is how new protocols get written. In the legacy VCM, methodology development typically happens inside closed expert panels: a developer files a project design document against an existing methodology, waits 12–18 months, pays $200k–$500k in consultant fees, and has very little influence on the rulebook itself. Protocol drafting happens elsewhere.

Isometric takes a different approach. The Isometric Science Team drafts v1 of a protocol drawing on peer-reviewed literature, real-world deployment data, and direct input from lead developers working in the field. The draft then goes to the independent Science Network of 300+ researchers for peer review, followed by a public consultation window of at least 30 days, a Standards Team vote, and final publication on the Science Platform alongside the full comment history. Concrete examples drawn from Isometric’s protocol release notes:

• Deep Sky contributed as Isometric’s first MRV Development Partner in late 2023 on the MRV protocol for Deep Sky Alpha, the cross-technology carbon removal innovation centre in Alberta, Canada. The draft was published on the Science Platform for peer review before certification.
• Renoster contributed extensive field input during the development of the Improved Forest Management Protocol and became the first supplier signed to issue credits under it.
• Captura, CarbonBlue and SeaO2 contributed during the Direct Ocean Capture & Storage (DOCS) protocol drafting and public consultation.
• Vaulted Deep, Graphyte and Charm Industrial fed into the Subsurface BiCRS and Bio-Oil Geologic Storage protocols and then became the first three suppliers to issue CCP-labelled credits under them.

What can be said factually is that no CCP-Eligible registry operates a fully closed protocol development process — ICVCM’s own CCP criteria require public consultation and independent review for any approved methodology. Isometric’s model is the most explicitly collaborative of the CCP-Eligible group, and the ICVCM assessment report flagged the transparency of the drafting process itself (not just the finished protocol) as one of the reasons the programme cleared the “governance and transparency” criterion. Readers can decide for themselves whether that’s sufficient. What matters commercially is that the comment history, the Standards Team decisions, and the protocol versioning are all public — so both the defenders and the critics of this model are arguing from the same source documents.

7. The ICVCM Assessment Report — What It Actually Said

Isometric became the sixth programme to achieve CCP-Eligible status in December 2024 — joining ACR, ART, CAR, Gold Standard and Verra. The assessment report is worth reading on its own merits because it is one of the most structurally interesting endorsements in the CCP programme to date.

Three things the report specifically credited:

On top of the programme-level endorsement, ICVCM has since CCP-Approved six Isometric protocols at the methodology level — meaning credits issued under these methodologies can carry the CCP label directly. And in a significant expansion beyond engineered removals, ICVCM CCP-Approved the ISM Reforestation Protocol v1.1 without conditions in late 2025, meaning every credit issued under this methodology is automatically CCP-labelled. At the time of approval approximately 20 project developers were already registered against the reforestation protocol, and Isometric’s internal forecasting projects more than 4 million credits per year issued under it by 2030.

This is the first time a science-first removals registry has had a nature-based protocol CCP-approved alongside engineered ones. It widens Isometric’s addressable market beyond the durable CDR ghetto and into the mainstream nature-based removals market — and it positions Isometric as the first programme able to offer a single registry, single fee model and single Certify workflow across engineered and nature-based removals.

8. The Public-by-Default Science Platform

Everything Isometric publishes is “public by default” unless a specific data point is subject to a narrow confidentiality exception (typically around IP-sensitive process parameters). In practice this means the Science Platform hosts every certified protocol, every draft protocol under consultation, every version history entry, every uncertainty model, every default factor, and every peer review comment — all open for any outside reviewer to audit.

When a first draft of a protocol is ready, it is sent to the Science Network for peer review and feedback, typically involving 5–10 sector experts reviewing the protocol for up to 10 hours each. The Science Network consists of 300+ scientific experts in carbon removal across a range of disciplines — geochemistry, atmospheric science, soil science, mineralogy, forestry, marine biology, combustion chemistry. Isometric matches scientists to protocols based on relevant expertise and offers reviewers an honorarium. Protocols then move to a public comment period of at least 30 days before final certification.

Certified protocols are uploaded onto the Isometric Science Platform with a summary of feedback received and changes made — also published for transparency. An outside reviewer (a buyer’s scientific team, a regulator, a journalist, a competing developer) can reconstruct the carbon accounting from first principles rather than taking a verification body’s word for it. This is the difference between a registry that says “trust us” and a registry that says “check our work.”

9. The 1,000-Year Default Durability Threshold

Isometric’s Standard applies a default 1,000-year Durability Threshold to all removals — meaning a protocol must demonstrate (via modelling, uncertainty analysis and buffer sizing) that the stored carbon will remain out of the atmosphere for 1,000 years with acceptable confidence. Pathways that can’t meet that bar under the default treatment are either excluded or require a protocol-specific durability tier with explicit buffer and reversal-risk adjustments. Combined with:

• 5-year reversal-risk reassessment for long-duration pathways, or at crediting period renewal, or on the occurrence of a new risk;
• Per-protocol buffer pools sized to reversal risk (not a flat percentage), funded by a proportional share of issued credits;
• Uncertainty deductions applied before issuance (not after);
• Tonne-level verification through Certify that locks the quantification rules at the moment of issuance, preventing retroactive rewriting.

…this produces a very different credit than anything Verra, Gold Standard or ACR issue on the nature-based side. It is engineered-durability-grade carbon accounting, and it’s why the buyer list skews so heavily toward Microsoft, Google, Stripe Frontier and other hyperscalers with hard removal-only portfolio mandates.

10. Dual Endorsement — ICVCM CCP-Eligible & CORSIA Phase 2 Eligible

Isometric now holds the two endorsements that actually move the 2026 VCM market:

The practical effect is that a CCP-labelled Isometric credit is simultaneously one of the cleanest defences for a CSRD, VCMI or SBTi-adjacent voluntary claim and a valid compliance unit for airlines entering CORSIA’s mandatory Phase 2. That dual-use profile — voluntary integrity claim plus compliance eligibility — is what’s pulled Microsoft, Google, Stripe Frontier and the CORSIA buyer pool onto the same registry.

11. The Six CCP-Labelled Protocols

As of April 2026 there are six CCP-approved Isometric protocols for engineered and durable removals, plus the full CCP approval of the ISM Reforestation Protocol v1.1 on the nature-based side.

12. Suppliers, Buyers & First CCP Issuances

Supplier side (as of April 2026): the first CCP-labelled issuances went to Vaulted Deep (the largest single issuance to date at 25,215 credits under Biomass Geological Storage), Graphyte (4,095 credits under Subsurface BiCRS), Charm Industrial (3,655 credits under Bio-Oil Geological Storage) and NULIFE GreenTech (55 credits under the biochar protocol). The broader supplier pipeline includes InPlanet and Lithos Carbon (enhanced rock weathering), Deep Sky (multi-pathway innovation centre), Captura, CarbonBlue and SeaO2 (Direct Ocean Capture & Storage) and ~20 reforestation developers registered against the ISM Reforestation v1.1 protocol.

Buyer side: Microsoft, Google, Stripe Frontier, H&M Group, Zendesk, JPMorgan and Shopify Sustainability Fund have all retired Isometric credits — mostly via off-take agreements with Vaulted Deep, Graphyte and Charm Industrial. Microsoft’s public 2024–25 CDR portfolio included Isometric-issued credits across BiCRS, Bio-Oil and DAC pathways. The common thread across the buyer list is a hard removal-only portfolio mandate, a CSRD/SBTi-aligned disclosure posture, and a willingness to pay the $150–$500+/tCO₂ that CCP-labelled durable removals are currently clearing at.

13. Protocol Pipeline — What’s Next

• Enhanced Rock Weathering (ERW) — currently in the ICVCM methodology-level assessment queue; InPlanet, Lithos and UNDO are the key suppliers.
• Direct Ocean Capture & Storage (DOCS) — protocol certified late 2025 with Captura, CarbonBlue and SeaO2 contributing during drafting and public consultation; now in the CCP pipeline.
• Electrolytic Seawater Mineralization — Equatic is the lead supplier; protocol in development through 2026.
• ISM Reforestation v1.2 — minor update planned for late 2026 incorporating leakage module revisions.
• Biochar end-use modules — secondary end-use modules (construction materials, soil amendment, wastewater treatment) in development for 2026 to expand the addressable biochar retail market following the Edition 2025 updates.

14. Commercial Implications for Developers & Buyers

For Project Developers

• Faster revenue. Certify’s ~one-month verification cycle compresses cash conversion by 12–24 months versus a legacy registry — a cost-of-capital benefit that dwarfs the headline verification fee difference and rewrites early-stage project economics.
• Lower upfront consultant burden. Protocol development on Isometric is public and versioned, so the typical legacy-VCM cost of hiring consultants to write a PDD against a closed rulebook is substantially reduced — though how much, and whether that’s offset by other costs, depends on pathway complexity.
• Premium pricing. CCP-labelled durable removals from Isometric have been clearing at $150–$500+/tCO₂ versus ~$5–$20/tCO₂ for legacy avoidance credits. Dual endorsement (CCP + CORSIA Phase 2) unlocks the airline-compliance buyer pool on top of the corporate voluntary buyer base.
• The cost. Isometric’s rigour is real. You will publish your measurement data in a structured form, your uncertainty will be deducted before issuance, and the Certify workflow will flag gaps in near-real-time. This isn’t a tickbox PDD — it’s a continuous audit. Developers used to legacy registries need to plan for a different operational cadence.

For Buyers

• Portfolio signal. An Isometric credit is one of the clearest possible signals to your CSRD, SBTi and VCMI auditors that the removal behind your claim is durable, independently verified and CCP-labelled.
• Structural independence. You are paying Isometric directly; no part of the verification chain depends on a fee being paid by the developer being audited. This is defensible in a way a legacy REDD+ credit often no longer is.
• Price discovery. Hyperscaler offtake has pulled prices up; if you’re budgeting for a removal-only component of your portfolio, Isometric sets the high-integrity anchor point.
• Optionality. CCP-Eligible status plus CORSIA Phase 2 eligibility lets one retirement close both a high-integrity voluntary claim and an airline-compliance obligation.

15. Frequently Asked Questions

16. What Suppliers & Buyers Should Do Now

1. If you’re a developer in a durable CDR pathway (BiCRS, DAC, ERW, biochar, BECCS, bio-oil, DOCS) — get on the Science Platform, read the relevant certified protocol, and engage during public consultation on any draft that affects your pathway. The public comment history is where your input is visible and auditable.
2. If you’re a developer in reforestation or IFM — the ISM Reforestation v1.1 CCP approval opens up an Isometric path for nature-based removal credits that legacy registries can’t yet match on integrity positioning or speed-to-issuance.
3. If you’re a developer modelling project economics — recalculate your NPV using a ~1-month Certify verification cycle instead of a 2–3 year legacy-registry cash-conversion assumption. The difference is often the bankability line.
4. If you’re a buyer with a removal-only mandate — map your 2026–2028 portfolio against Isometric CCP-labelled pathways and calibrate against the current Vaulted Deep / Graphyte / Charm / NULIFE price anchors.
5. If you’re a CORSIA-exposed airline — Isometric CCP credits are Phase 2 eligible and one of the cleanest compliance vehicles currently available.
6. If you’re a CSRD or VCMI reporter — the ICVCM assessment report findings on Isometric’s governance, transparency and quantification are quotable in your disclosures; the structural independence is defensible in a way most legacy credit types no longer are.
7. If you’re a dMRV provider — Isometric’s seven-partner model is an open door, and certification into Certify is a legitimate distribution channel into CCP-approved protocols.

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