Institutional Market Making
for Natural Capital
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At Calculus Carbon, We enable institutional grade NbS sponsors in the Global South to access the entire spectrum of capital stack across Equity, Structured Debt and Project Financing, required to finance and scale their underlying assets.

We are fortunate to have been onboarded as the preferred sell-side banker to several institutional NbS sponsors across the Global South, for their Asset Co and/or Hold Co fundraising mandates.
About Calculus Carbon
a
portfolio firm via
ventures specialising in
institutional market making for large-scale Nature-Based Solutions (NBS) projects and Natural Capital funds, having its presence in London, Singapore and Bangalore
Our Collaborative Journey with Industry Leaders
NatureRe Logo SmallVlinder Logo SmallClimate Investment Partners Logo SmallLionheart Farms Logo SmallCourageous Land Logo Small
Unitán Logo SmallEcoPlanet Bamboo Logo Small3T Logo SmallValency Logo SmallBam Logo Small
V Carbon Logo SmallBig Tree Farms Logo SmallBoomitra Logo SmallGreen Carbon Logo Small
Recent Transactions
  • Catalyzing Structured Debt Investment in Agricultural Supply Chain & Processing Company in Ivory Coast and Vietnam
    Calculus Carbon is serving as the strategic advisor to Valency International for this transaction, leveraging its expertise in climate finance and sustainable supply chains to support the structuring, positioning, and capital raise for the proposed investment. The firm is working closely with Valency to design a debt or convertible financing instrument that aligns with both investor requirements and the company’s long-term growth strategy. In parallel, Calculus Carbon is facilitating engagement with impact-focused institutional investors.
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  • Advancing Equity Investment in Sustainable CPG and Regenerative Agriculture Company in Indonesia
    Calculus Carbon is supporting Big Tree Farms in structuring and raising the equity round, bringing its expertise in climate finance, regenerative agriculture, and investor engagement to the transaction. The firm’s role includes aligning the equity raise with institutional capital expectations, highlighting the asset’s dual impact and commercial value, and facilitating outreach to global climate-aligned and impact-focused investors. Calculus Carbon is also working with Big Tree to embed key climate and sustainability credentials into its operations.
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  • Enabling Equity Investment in Afforestation & Sustainable Timber Company in Peru
    Calculus Carbon is advising BAM on the structuring and capital raise for this ARR project, aligning the investment opportunity with the mandates of climate-focused and impact-driven investors. Leveraging its expertise in nature-based solutions, carbon finance, and sustainable land use, Calculus Carbon is shaping the transaction to emphasize the project’s long-term climate impact, biodiversity value, and community co-benefits. The firm is supporting BAM in structuring an investment model that blends carbon and sustainable timber revenue.
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  • Mobilizing Investment in Methane-Reducing Rice Cultivation Project in Vietnam
    Calculus Carbon is serving as the strategic advisor to Green Carbon Inc. for the structuring and capital raise of the Rice Cultivation Project, leveraging its deep expertise in carbon finance, nature-based solutions, and investor engagement. The firm’s role encompasses designing flexible investment instruments both in-kind pre-finance repayable through carbon credits and debt financing repaid in cash tailored to the needs of institutional climate investors. In parallel, Calculus Carbon is refining the investment narrative by integrating ESG performance metrics, smallholder benefit-sharing mechanisms
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  • Scaling Nature-Based Investment in Community-Led Forest Restoration Project in Ghana
    Calculus Carbon is supporting 3T in the capital raise for the Ghana ARR project by structuring an investment opportunity that aligns with the mandates of climate, impact, and blended finance investors. Drawing on its expertise in carbon finance and investor engagement, Calculus Carbon is working to financing to expand restoration activities across 3,500 hectares in Agogo, complementing the existing planting program. The firm is closely advising on the framing of the project’s long-term carbon revenue model over a 40-year lifecycle, while embedding key ESG and community benefit-sharing
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We deal in Nature-based Solutions (NbS)
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