The math for soil sequestration is, in theory, beautifully simple. A farmer adopts a regenerative practice, like cover cropping or no-till, and the soil beneath their feet begins to bank carbon. Measure the change, verify it, and sell that tonne of CO2 to a corporation looking for a durable offset. For seven years, Nori tried to make that math work for everyone. The Seattle-based startup built a marketplace to connect those farmers with those buyers, issuing a credit it called the Regenerative Tonne for carbon stored in soil for at least a decade [Wikipedia]. It was a clear wedge into the sprawling, messy world of carbon removal: start with the land.
The bet on agricultural carbon
Nori’s core product was a financial instrument for a new kind of commodity. A farmer would get paid for verified carbon sequestration, and a buyer, a company aiming for net-zero claims, would purchase a Nori Regenerative Tonne credit. The company’s bet was that by creating a direct, transparent market, it could unlock supply and demand simultaneously. In late 2023, it launched a hybrid product, the Net Zero Tonne, which paired soil sequestration with more permanent removal methods like direct air capture, a move to address concerns about the durability of nature-based solutions [Carbon Herald, December 2023]. The underlying technology stack included blockchain, aimed at providing an immutable ledger for credit ownership and retirement [TechCrunch, 2020].
Funding and the road to 2024
Investors backed the thesis with over $17 million. The funding runway was built across several rounds, with notable leads like M13 and Toyota Ventures stepping in for a $7 million Series A in early 2022 [Wikipedia, Feb 2022]. Toyota Ventures returned to lead another $6.25 million venture round in mid-2023 [Crunchbase, Jun 2023].
| Round | Date | Amount | Lead Investor(s) |
|---|---|---|---|
| Pre-seed | 2019 | $1.3M | Not disclosed [CoinDesk, 2020] |
| Seed | 2020 | $4M | Not disclosed [Wikipedia] |
| Series A | Feb 2022 | $7M | M13, Toyota Ventures [Wikipedia, Feb 2022] |
| Venture | Jun 2023 | $6.25M | Toyota Ventures [Crunchbase, Jun 2023] |
Where the wheels came off
Despite the capital, the market fundamentals proved tougher than the soil science. In 2023, Nori laid off 10 employees, about 37% of its team at the time, with CEO Paul Gambill citing broader market concerns [GeekWire, 2023]. Leadership shifted, with Gambill moving from CEO to chief product officer and later leaving the company in March 2024 while remaining on the board [GeekWire, 2024]. By 2024, operations ceased entirely. The shutdown was attributed to a stagnant voluntary carbon market and a difficult funding environment, as explained by then-CEO Matt Trudeau [Carbon Herald, 2024]. The closure highlights several intrinsic risks in the carbon removal marketplace model:
- Buyer demand volatility. Corporate appetite for voluntary credits, especially newer soil-based credits, can freeze rapidly amid economic uncertainty or scrutiny over credit quality.
- Measurement complexity. Verifying additionality and ensuring a tonne of soil carbon is truly new, additional, and durable for a decade requires rigorous (and costly) science.
- Farmer economics. The payment per tonne must meaningfully offset a farmer’s risk and effort in changing practices, a unit economics challenge at early market prices.
Nori’s story is a case study in climate tech unit economics. It was a capital-intensive race to prove a market could be created before the runway ended. In the end, Nori’s bet was on a future that required it to beat not just other marketplaces like Indigo Ag or Boomitra, but the entrenched skepticism of the entire voluntary carbon market itself.