Eamon Jubbawy has a theory about broken markets. The identity verification space was a mess when he co-founded Onfido a decade ago—fragmented, slow, prone to fraud. So was the carbon credit market when he started Isometric in 2022. Now, with a $40 million Series A announced on June 22, 2026, Jubbawy is betting the same pattern holds across industrial certification writ large.
The round, led by AVP (the venture arm formerly known as AXA Venture Partners), brings the London and New York startup's total capital raised to $65 million. Lowercarbon Capital and Plural, both repeat backers from Isometric's $25 million seed round in mid-2023, returned for this one. So did a handful of notable individuals: John Doerr, the storied venture capitalist, and Walter Kortschak, whose name carries weight in climate tech circles.
But the real news isn't the money—it's the expansion. Isometric is recognized for its role in carbon removal certification, using what it describes as "agentic" AI workflows to shrink verification timelines from months to hours. Now it's aiming beyond carbon dioxide. The company wants to tackle methane abatement, low-carbon hydrogen, renewable fuels, and materials. Anything, in short, that needs rigorous third-party verification in an era when greenwashing scrutiny is at an all-time high.
Speed as a Product
Isometric's pitch centers on speed and transparency. Traditional certification in the voluntary carbon market is notoriously sluggish—site visits, manual data review, committee deliberations. The company's Certify platform uses AI to enhance certification processes, automating much of that drudgery and using machine learning to flag inconsistencies and verify project data in real time. It's not exactly hands-off; human experts still review flagged items. But the compression is real: verification that once took a quarter can reportedly happen in days.
The company covers multiple carbon removal pathways—biochar, enhanced rock weathering, direct air capture, reforestation, mangrove restoration. Its public Registry model offers full credit provenance, a selling point at a moment when corporate buyers are nervous about credit quality. Several of Isometric's protocols have earned approval from the Integrity Council for the Voluntary Carbon Market, the independent body trying to set a quality floor. Biochar got the nod in August 2025; mangrove restoration followed in May 2026.
According to the company, it's contracted over 16 million tonnes of carbon dioxide for certification across more than 200 projects. Clients include the usual suspects for climate-forward corporate programs: Microsoft, JPMorgan Chase, Boeing, Anglo American. Registry data from late June showed just under 110,000 credits issued and nearly 35,000 retired—a modest slice of the market, but growing.
Block, the payments company formerly known as Square, retired 2,000 Isometric credits in December 2025. Harvard Management Company followed with 600 credits a month later. Shopify, another frequent buyer of removal credits, put 603 through the registry in January 2026.
Perhaps the most telling signal: Vaulted Deep, a startup involved in carbon sequestration, chose Isometric as the registry for a Microsoft offtake agreement covering up to 4.9 million tonnes over 12 years. That deal, announced in mid-2025, remains one of the larger removal commitments in the voluntary market. And in April 2026, Alt Carbon delivered 2,500 enhanced weathering credits—certified by Isometric—to Mitsui O.S.K. Lines, the Japanese shipping giant. Alt Carbon called it one of the largest such deliveries under Isometric to date.
Beyond Carbon
The Series A is about moving sideways. Isometric's April 2026 launch of Environmental Attribute Certificates marks its first step outside pure carbon removal, aiming at categories like methane reduction and low-carbon energy. The certificates align with ISO standards and the forthcoming Science Based Targets initiative Corporate Net Zero v2.0, a framework expected to tighten the screws on corporate climate claims.
AVP's rationale for leading the round hinges on a larger opportunity. The global testing, inspection, and certification market exceeds $300 billion, according to a mid-2025 BCG white paper the firm cited in its press release. Most of that market remains analog: clipboards, PDF reports, legacy databases. If Isometric can apply its carbon removal playbook to adjacent sectors—super-pollutants, renewable fuels, materials—the addressable market expands dramatically.
"Fragmented" might be the operative word. Industrial certification today is a patchwork of regional players, industry-specific bodies, and legacy auditors. Isometric's bet is that buyers—especially large corporates facing regulatory and investor pressure—will pay a premium for faster, more transparent verification tied to a public evidence chain.
The Onfido Precedent
Jubbawy brings a relevant track record. Onfido, the identity verification firm he co-founded, sold to Entrust in April 2024 for around $650 million, multiple outlets reported. That exit came after years grinding through a similarly fragmented space—KYC and identity checks scattered across banks, fintechs, and platforms with wildly inconsistent standards. Onfido centralized and automated. Isometric is attempting the same playbook, this time for environmental claims.
The timing looks deliberate. Carbon markets faced a credibility crisis in recent years, with investigations exposing dubious offsets and phantom removals. Regulators responded. The EU Carbon Removal Certification Framework began rolling out methodologies in late 2024, with more arriving through 2026. In the U.S., voluntary market principles emerged, pushed by the Commodity Futures Trading Commission and others. Quality standards, once optional, started to feel mandatory.
Isometric launched into that moment. Its emphasis on provenance and third-party validation positioned it as a safe harbor for buyers wary of reputational risk. Now, with regulatory frameworks hardening around methane reporting, hydrogen certification, and materials traceability, the company sees a similar opening.
What Remains Uncertain
Whether Isometric can actually translate its carbon removal credibility into adjacencies is an open question. Carbon dioxide removal is a relatively narrow domain—complicated, yes, but bounded by well-understood physical processes. Methane abatement introduces different measurement challenges. Low-carbon hydrogen certification depends on lifecycle emissions that vary wildly by production method. Materials traceability involves supply chain opacity that no amount of AI can fully untangle.
The company employs somewhere between 51 and 200 people, with 189 listed on LinkedIn as of mid-June. That's a lean team for the ambitions on display. Scaling verification across multiple domains will require either significant hiring or partnerships with established certification bodies—entities that may view Isometric as a threat, not an ally.
Still, the regulatory tailwinds are real. ICVCM approvals lend credibility. The EU framework sets a high bar, which favors rigorous platforms over fly-by-night operators. And corporate buyers, spooked by greenwashing headlines, are hunting for defensible claims. Isometric's public registry model—where anyone can scrutinize project data and credit retirements—may prove more valuable than the AI automation itself.
Jubbawy framed the Series A as fuel to unify fragmented certification and registries into "a single platform with a public evidence chain." That's the pitch. Execution, of course, is another matter entirely.
