The business trigger: biodiversity finance is growing, but the evidence remains uneven
On 1 October 2026, the OECD published a global estimate placing biodiversity finance at USD 74.9-92.4 billion per year for 2023-2025. The estimate covers public and private, domestic and international sources. Public domestic expenditure represents the largest component, while international public finance and private finance provide smaller but material shares.
The same report stresses persistent data gaps and methodological constraints. Its central communications lesson is therefore not the headline number alone. It is the need for greater consistency, comparability, coverage and transparency in the way biodiversity-related finance is defined and reported. Companies should treat those limitations as part of the decision context, not hide them in a footnote.
What the OECD analysis means for international companies
Biodiversity finance connects policy, capital allocation and operational exposure. For companies in agriculture, fisheries, forestry, tourism, real estate, infrastructure, luxury, food, beauty and financial services, nature-related dependencies may influence site selection, sourcing, insurance, financing, product claims and the resilience of a market-entry plan.
The report does not create a universal corporate disclosure rule or certify any company as nature-positive. It does indicate a more demanding information environment. Investors, public authorities, business partners and customers may increasingly ask what a company is financing, which impacts and dependencies it has assessed, what methodology it uses and how decisions change when evidence changes.
The principal communication risks
The first risk is category inflation: describing ordinary environmental expenditure, philanthropy or a general sustainability budget as biodiversity finance without a defined boundary. The second is outcome inflation: presenting money committed or spent as proof of ecological improvement. Finance is an input; impact requires a separate method, baseline, time horizon and evidence trail.
A third risk is copying global estimates into a corporate narrative without explaining relevance to the company's markets and operations. A fourth is combining unlike instruments, periods or geographies. A fifth is implying alignment with the OECD, the Convention on Biological Diversity or another institution merely because the company refers to its terminology.
- undefined use of biodiversity, nature-positive or restoration language
- expenditure presented as verified environmental outcome
- global figures used without a company-specific decision link
- inconsistent definitions across investor, marketing and market-entry materials
- institutional references that imply approval or affiliation
Build a biodiversity claim and evidence register
Before publishing a biodiversity-related statement, record the exact claim, business activity, geography, reporting period, finance source, instrument, methodology, baseline, evidence owner, limitation and approval status. Separate public funding, private investment, company expenditure, philanthropy, offsets, payments for ecosystem services and other instruments when their purpose and evidence are different.
The register should also distinguish allocation, commitment, deployment and measured outcome. If the company cannot yet show an outcome, it can state the decision taken, the scope of the assessment and the next evidence date. A precise limitation is more credible than a larger unsupported promise.
Translate nature-related evidence into market decisions
A market-entry team should identify which products, suppliers, locations and customer propositions depend on water, land, ecosystems or biological resources. It should then test whether local regulation, public incentives, financing conditions, procurement expectations and stakeholder concerns alter the route to market or the sequence of investment.
This is not a communications-only exercise. Procurement, finance, operations, risk, legal, sustainability and market leadership should agree what the evidence changes. Communications then explains the decision accurately: what was assessed, what remains uncertain, who owns the response and when the position will be reviewed.
A practical 30-day response
In the first week, collect current biodiversity claims, financing references, market-entry assumptions and material supplier data. In the second, map the definitions and evidence behind each statement and identify where teams are using the same term differently. In the third, test the material issues with finance, operations, risk, legal and priority-market leaders.
In the fourth week, approve a short decision brief for each relevant market. It should state the business dependency, current evidence, financial or operational exposure, decision owner, permitted public wording and next review date. Publish only the elements that have passed that process, and retain the source and approval record.
- inventory claims, finance references and market assumptions
- define terms, boundaries and periods consistently
- separate financial inputs from ecological outcomes
- assign evidence and decision ownership
- adapt the explanation to the relevant market
- set a review date tied to new evidence or a business milestone
What leadership should approve
Leadership should approve which nature-related issues are material to the business, which financial flows or activities the company will describe, what evidence standard applies and which claims are prohibited until further work is complete. It should also decide where market plans, sourcing choices, investment priorities or stakeholder engagement must change.
A useful approval pack is concise: external trigger, business relevance, definitions, evidence register, unresolved risks, market adaptations, spokesperson guidance and the next decision date. Legal, financial, scientific and regulatory conclusions remain with qualified specialists; the communications pack should make those dependencies visible.
How ICON IMAGE can support the review
ICON IMAGE can coordinate an international workstream across source review, stakeholder mapping, market relevance, claim and evidence governance, narrative architecture, country adaptation and executive briefing. The objective is to connect external research to an actual market, investment or communications decision.
The engagement does not provide environmental certification, scientific assurance, legal advice or OECD affiliation. To scope the work, share the priority markets, current claims, reporting materials, relevant financing or investment decisions, available evidence, specialist advisers and the leadership decision the communications programme must support.
Editorial sources
Primary sources used to verify the factual statements and publication dates in this article.