Market map: Soil carbon MRV & incentives — the categories that will matter next

Agricultural soils hold approximately 2,500 gigatonnes of organic carbon globally, more than three times the amount in the atmosphere. The prospect of increasing this stock through regenerative practices has attracted billions in corporate carbon credit purchases, government incentive programs, and venture capital. Yet the market has been held back by a fundamental measurement challenge: verifying that soil carbon has actually increased, by how much, and whether the change is durable. The soil carbon MRV (measurement, reporting, and verification) market reached an estimated $420 million in 2025, up from $180 million in 2022, according to Ecosystem Marketplace. But this growth masks a sector in transition, as early approaches based on sparse physical sampling give way to hybrid systems combining remote sensing, biogeochemical modeling, and targeted field validation. For founders and investors evaluating this space, the question is no longer whether soil carbon markets will scale but which MRV architectures and incentive structures will capture value as the market matures.

Why It Matters

The EU Carbon Farming Initiative, finalized in late 2025, establishes a certification framework for carbon removals including soil carbon sequestration, creating a regulated demand signal across the bloc's agricultural sector. This framework mandates MRV methodologies that demonstrate additionality, permanence monitoring for at least 30 years, and quantification uncertainty below 20% at the project level. Compliance with these requirements will determine which soil carbon credits are eligible for inclusion under the EU Emissions Trading System's planned land-use extension, currently projected for 2028 to 2030.

Simultaneously, the US Inflation Reduction Act allocated $19.5 billion to the USDA's Natural Resources Conservation Service (NRCS) for climate-smart agriculture programs, with soil carbon measurement requirements embedded in multiple payment tiers. The Growing Climate Solutions Act, enacted in 2022, directed the USDA to establish technical assistance programs helping farmers access voluntary carbon markets, creating further demand for accessible MRV tools. Australia's Emissions Reduction Fund has generated over 90 million Australian Carbon Credit Units (ACCUs) from soil carbon projects since 2014, making it the largest operational soil carbon crediting program globally and providing critical lessons on what works and what fails at scale.

The corporate demand side has consolidated around high-integrity credits. Microsoft's carbon removal portfolio allocated $8.2 million to soil carbon projects in 2024, but only to those meeting its internal quality criteria including direct measurement requirements. Stripe Climate has funded multiple soil carbon MRV startups through its frontier fund. The Integrity Council for the Voluntary Carbon Market (ICVCM) published Core Carbon Principles in 2023 that set minimum MRV standards, effectively creating a quality floor that eliminates the cheapest (and least reliable) measurement approaches.

For founders, the convergence of regulatory mandates, corporate quality requirements, and farmer adoption barriers creates multiple entry points across the value chain. The market is large enough to support specialized players but immature enough that dominant platforms have not yet emerged.

Key Concepts

Direct Soil Sampling remains the reference standard for soil organic carbon (SOC) measurement. Cores are extracted at defined depths (typically 0 to 30 cm and 0 to 100 cm), dried, sieved, and analyzed through dry combustion (the Dumas method) or wet oxidation (Walkley-Black). Laboratory analysis costs $15 to $40 per sample, and achieving statistical confidence at the field level requires 15 to 30 cores per hectare due to the high spatial variability of SOC. Including labor, logistics, and laboratory fees, direct sampling costs $25 to $60 per hectare, making it prohibitively expensive for small or marginal projects. The IPCC Tier 3 approach recommends direct measurement but acknowledges the cost and scalability limitations.

Remote Sensing and Spectroscopy uses satellite or airborne sensors to estimate SOC from surface reflectance patterns. Sentinel-2 multispectral imagery and hyperspectral platforms like PRISMA and EnMAP can detect SOC variations in bare soil conditions with R-squared values of 0.5 to 0.7 against ground truth. The primary limitation is that remote sensing only captures surface conditions (top 2 to 5 cm), while most carbon sequestration occurs at 10 to 30 cm depth. Proximal soil sensing using visible-near infrared (vis-NIR) spectrometers mounted on farm equipment offers subsurface measurement at costs of $3 to $8 per hectare but requires physical field access.

Biogeochemical Models simulate SOC dynamics based on climate data, soil properties, land management inputs, and plant growth parameters. The most widely used models include RothC (Rothamsted Carbon Model), DNDC (DeNitrification-DeComposition), DayCent, and APSIM. When properly calibrated with local data, these models can predict SOC changes with root mean square errors of 2 to 5 tonnes C per hectare. Their strength lies in projecting future trajectories and counterfactual baselines. Their weakness is sensitivity to input data quality, particularly management practice records that farmers often do not systematically maintain.

Hybrid MRV Systems combine two or more of the above approaches to balance accuracy, cost, and scalability. The emerging consensus in the field, reflected in both the EU Carbon Farming framework and Verra's VM0042 methodology, favors model-based estimation with stratified direct sampling for calibration and verification. This approach can reduce per-hectare MRV costs to $5 to $15 while maintaining quantification uncertainty below the 20% threshold required by most crediting standards.

Market Categories and Key Players

Category 1: Full-Stack MRV Platforms

These companies offer end-to-end measurement, reporting, and verification services, typically combining modeling with remote sensing and sampling coordination.

Regrow Ag (formerly FluroSat) operates the most widely adopted full-stack platform, with its DeNitrification-DeComposition (DNDC) model integrated with satellite imagery and farm management data. Regrow serves corporate supply chain programs for Cargill, PepsiCo, and General Mills, covering over 4 million acres in the US and EU. Their platform generates field-level SOC estimates that have been validated against physical sampling with mean errors of 15 to 18%. Revenue model combines SaaS licensing with per-acre verification fees.

Perennial built a remote sensing-first platform using machine learning applied to satellite imagery to estimate SOC across large areas. Their approach enables landscape-scale screening before targeted sampling, reducing total MRV costs by 40 to 60% compared to sampling-only approaches. Perennial has raised $18 million and serves the California Air Resources Board's natural and working lands program. The platform is strongest in regions with extensive ground truth calibration datasets (US Great Plains, parts of Australia).

CarbonSpace (formerly GHGSat's agricultural division) uses proprietary hyperspectral satellite data combined with process-based modeling to deliver SOC estimates at 10-meter resolution. Their differentiation is data exclusivity: unlike competitors relying on public Sentinel-2 imagery, CarbonSpace controls its own sensor constellation, providing more frequent revisit rates and spectral resolution optimized for soil properties.

Category 2: Measurement Hardware and Sensors

Companies developing physical instruments for SOC measurement at costs and speeds that enable field-scale deployment.

Yard Stick developed a penetrometer-mounted sensor that measures SOC to 1-meter depth using spectroscopy, providing results in under 30 seconds per point at costs below $5 per measurement. The device has been validated against traditional dry combustion analysis with R-squared values exceeding 0.85. Yard Stick has raised $18.5 million and is deploying through partnerships with Indigo Ag and the USDA. Their hardware-as-a-service model targets agronomists and soil sampling companies rather than farmers directly.

AgroCares offers handheld and lab-based near-infrared scanners calibrated for SOC measurement alongside nutrient analysis. Operating primarily in Europe and Africa, AgroCares has built a database of over 250,000 soil scans that continuously improves its calibration models. Their scanner costs approximately EUR 5,000 and delivers SOC estimates within minutes at per-sample costs below EUR 2.

Stenon developed a sensor probe for real-time in-field soil analysis including organic carbon content. The Berlin-based company targets European regenerative agriculture programs where soil health monitoring is increasingly required for subsidy eligibility under the Common Agricultural Policy's eco-schemes.

Category 3: Carbon Credit Platforms and Marketplaces

Platforms that connect farmers generating soil carbon credits with corporate buyers, typically bundling MRV with credit issuance and trading.

Indigo Ag operates the largest soil carbon credit program in the US, with over 5 million acres enrolled. Indigo uses a hybrid MRV approach combining DNDC modeling with physical sampling at a density of approximately 1 core per 40 acres. The company has issued credits at prices of $20 to $30 per tonne CO2e, though buyer demand has softened as corporate scrutiny of credit quality has increased. Indigo recently partnered with Yard Stick to improve measurement accuracy in response to market pressure for higher-integrity credits.

Nori operates a blockchain-based carbon removal marketplace focused on soil carbon. Nori's CropScoreTM methodology, developed in partnership with the Soil Health Institute, uses farm practice data and modeling to generate Nori Carbon Removal Tonnes (NRTs). Credit prices have ranged from $15 to $50 per tonne. Nori differentiates through a 10-year crediting period with annual reversal monitoring, compared to the single-vintage approach used by most competitors.

Carbonplace (a consortium of major banks including BNP Paribas, BBVA, and Standard Chartered) is building a settlement platform for voluntary carbon markets including soil carbon credits. While not a direct MRV provider, Carbonplace's integration requirements are shaping MRV data standards by specifying the digital formats and verification evidence that credits must carry for institutional trading.

Category 4: Incentive Program Administration

Organizations designing and administering payment programs that compensate farmers for soil carbon outcomes or practice adoption.

CIBO Technologies provides a platform for administering corporate-funded regenerative agriculture incentive programs, integrating satellite-based practice verification with payment distribution. CIBO's approach focuses on practice-based payments (verified adoption of cover cropping, reduced tillage, or diverse rotations) rather than outcome-based carbon credits, sidestepping the most difficult measurement challenges.

Agreena operates a European carbon certificate platform that has issued over 2 million certificates from regenerative agriculture practices across 15 EU member states. Agreena's model combines satellite-based practice verification with the Cool Farm Tool for emissions estimation, and has recently integrated direct SOC measurement through partnerships with soil sampling networks.

The Soil Health Institute provides the scientific foundation for multiple incentive programs, maintaining the largest publicly accessible database of soil health measurements in North America (over 120,000 samples across 31 states). Their economic analysis showing that soil health practices increase net farm income by $52 per acre on average has been instrumental in persuading farmers to adopt practices independently of carbon credit revenues.

Whitespace Opportunities

Permanence Monitoring Infrastructure

The EU Carbon Farming framework requires 30 years of permanence monitoring for soil carbon credits. No current MRV provider has a credible technical or business model for multi-decade monitoring at scale. The opportunity exists for a specialized monitoring service that combines periodic remote sensing with triggered physical verification, operating on long-term contracts backed by buffer pool insurance. Estimated addressable market: $150 to $300 million annually in Europe alone by 2032.

Small-Farm Aggregation in the EU

The average farm size in the EU is 17 hectares, compared to 180 hectares in the US. Current MRV economics require minimum project sizes of 500 to 1,000 hectares for viability. Platforms that can aggregate small farms into MRV-efficient portfolios through cooperative structures or regional intermediaries will unlock the largest segment of European agricultural land. The Common Agricultural Policy's eco-schemes provide a funding mechanism, but the administrative and technical coordination layer remains underserved.

Integration with Agricultural Input Markets

Soil carbon MRV data has value beyond carbon markets. SOC measurements correlate with nutrient availability, water holding capacity, and yield potential. Companies that can monetize MRV data through integration with precision agriculture platforms, input suppliers (seeds, biologicals, fertilizers), and crop insurance providers will build more defensible businesses than those relying solely on carbon credit margins. This convergence represents a potential 5 to 10x expansion of the addressable market for soil data platforms.

MRV for Biochar and Enhanced Weathering

Soil-applied carbon removal approaches including biochar and enhanced rock weathering require MRV infrastructure distinct from biological SOC. The measurement challenges (tracking mineral carbonation rates, distinguishing biochar carbon from native SOC) remain unsolved at scale. With biochar credit prices reaching $100 to $200 per tonne CO2e and enhanced weathering attracting funding from Frontier, this represents a premium MRV segment with higher willingness to pay.

Action Checklist

• Map your agricultural supply chain to identify regions where soil carbon incentive programs are active or planned
• Evaluate MRV platform providers based on quantification uncertainty, cost per hectare, and alignment with EU Carbon Farming or ICVCM standards
• Assess whether practice-based incentives or outcome-based credits better fit your supply chain engagement strategy
• Engage with at least two measurement hardware providers (Yard Stick, AgroCares, or Stenon) to understand per-acre costs for direct verification
• Review the EU Carbon Farming certification framework requirements for permanence monitoring and liability allocation
• Identify aggregation partners or cooperative structures for engaging small-farm networks in the EU
• Evaluate whitespace opportunities in permanence monitoring, small-farm aggregation, or MRV data integration with precision agriculture
• Monitor Verra VM0042 and Gold Standard soil carbon methodology updates for evolving MRV requirements

FAQ

Q: What does soil carbon MRV cost per hectare today, and where is it heading? A: Direct sampling-only approaches cost $25 to $60 per hectare. Hybrid systems combining modeling, remote sensing, and targeted sampling have reduced costs to $5 to $15 per hectare. Next-generation approaches using rapid sensing hardware (Yard Stick, AgroCares) combined with modeling aim to reach $2 to $5 per hectare by 2028. The EU Carbon Farming framework's 20% uncertainty requirement effectively sets a floor on measurement intensity that prevents costs from dropping below $3 to $5 per hectare for crediting-grade MRV.

Q: Which MRV methodology should founders build against? A: For EU market access, align with the EU Carbon Farming certification framework (finalized 2025). For voluntary carbon markets, Verra's VM0042 (Methodology for Improved Agricultural Land Management) is the most widely adopted standard. For US government programs, the USDA NRCS's quantification protocols under the Growing Climate Solutions Act define the technical requirements. Building to the most stringent standard (currently the EU framework) provides compatibility across all three markets.

Q: How reliable are model-based SOC estimates without physical sampling? A: Model-only estimates typically have quantification uncertainties of 30 to 50% at the field level, which exceeds the 20% threshold required by most crediting standards. However, models calibrated with regional soil sampling data and validated against physical measurements can achieve uncertainties of 15 to 25%. The industry consensus is that models are necessary for cost-effective scaling but insufficient without periodic ground truth verification. The optimal sampling density for calibration is approximately 1 core per 5 to 10 hectares, though this varies with soil heterogeneity.

Q: What is the biggest risk to soil carbon credit markets? A: Permanence reversal. A 2024 analysis of Australian soil carbon projects found that 15% of credited sequestration was reversed within five years due to drought, management changes, or land use conversion. Buffer pool mechanisms (holding 10 to 25% of credits in reserve) partially address this risk, but the adequacy of current buffer levels under climate change scenarios remains contested. The EU Carbon Farming framework's 30-year monitoring requirement reflects regulatory concern about this issue.

Q: Can soil carbon credits reach the quality levels demanded by corporate buyers like Microsoft and Stripe? A: Yes, but only with measurement-intensive MRV. Microsoft's 2024 carbon removal portfolio required projects to demonstrate quantification uncertainty below 15% and provide 5+ years of monitoring data. This effectively limits eligible soil carbon projects to those using direct measurement or highly validated hybrid systems. The premium price segment ($30 to $50 per tonne for high-integrity soil carbon) justifies higher MRV costs, but the volume segment ($15 to $25 per tonne) must find ways to maintain quality at lower measurement intensity.

Sources

• Ecosystem Marketplace. (2025). State of the Voluntary Carbon Markets 2025: Soil Carbon Segment Analysis. Washington, DC: Forest Trends.
• European Commission. (2025). Regulation on an EU Certification Framework for Carbon Removals and Carbon Farming: Final Text and Technical Annex. Brussels: Official Journal of the EU.
• Sanderman, J., Hengl, T., and Fiske, G.J. (2017). Soil carbon debt of 12,000 years of human land use. Proceedings of the National Academy of Sciences, 114(36), 9575-9580.
• Smith, P., et al. (2024). Global potential of soil carbon sequestration to mitigate the greenhouse gas balance: A critical review. Global Change Biology, 30(1), e17096.
• Oldfield, E.E., et al. (2022). Crediting agricultural soil carbon sequestration. Science, 375(6586), 1222-1225.
• Clean Energy Regulator. (2025). Emissions Reduction Fund: Soil Carbon Method Performance Review 2014-2024. Canberra: Australian Government.
• US Department of Agriculture. (2025). Climate-Smart Agriculture and Forestry Strategy: Implementation Progress Report. Washington, DC: USDA.