Sustainable finance is no longer a niche or a marketing meme. Sustainable debt issuance consistently tops $1 trillion a year, and regulators have started punishing institutions with gaps between their sustainability claims and their practices. But those gaps are proving hard to dispel, even though most financial institutions have sustainability strategies, because few have the infrastructure to connect their commitments to core business processes—how they actually lend, invest, and price risk. That shortfall shows up in the guise of ESG reports that don’t match lending practices, climate commitments that don’t change how deals get priced, or sustainability teams that produce disclosures using entirely different data from what the credit risk desk has.

As a result, the real sustainability test facing many financial services companies is building the data infrastructure that lets them embed sustainability into credit decisions, investment mandates, product development, and client engagement in ways that are consistent, auditable, and defensible under regulatory scrutiny.

What Is Sustainable Finance?

Sustainable finance refers to the practice of integrating environmental, social, and governance (ESG) factors into lending, investment, and risk decisions. It helps financial institutions direct capital toward activities that support long-term environmental, social, and economic outcomes, and treats those factors as central to financial performance.

This reflects a broad shift from traditional finance, which judges deals by risk and return. Sustainable finance adds questions about how an activity affects the environment and the people connected to it, the business’s long-term economic viability, and the local communities it touches. The approach covers two distinct types of financing: green finance, which funds activities that are already sustainable (such as solar energy or certified green buildings), and transition finance, which funds the migration of high-emitting industries toward lower-carbon operations. Both require financial institutions to assess ESG factors alongside traditional credit and investment criteria.

Key Takeaways

  • Financial institutions shape sustainability through lending, investing, and underwriting decisions, which determines the projects and companies that get capital.
  • Inside financial services firms, sustainability factors are being integrated into operational functions.
  • Leading firms are embedding environmental, social, and governance (ESG) criteria into credit models, appointing sustainability officers, and building data systems that support audit-ready disclosures.
  • Propelling these changes are new and emerging regulations, investor demand, customer expectations, and the physical realities of climate change.
  • ERP systems increasingly serve as the data foundation for ESG reporting because they integrate sustainability metrics with financial and operational data.

Sustainability in Financial Services Explained

Banks, asset managers, insurers, and wealth managers control where capital goes. Every loan, investment, and underwriting decision steers money toward some possibilities and away from others.

Financing coal plants, for example, commits billions to a carbon-intensive infrastructure. But building ESG criteria into lending and investment decisions makes it easier to redirect capital toward cleaner energy, resilient infrastructure, and broader economic opportunities. Through those decisions, financial services firms either accelerate—or slow—sustainability.

The Growing Importance of Sustainability in Financial Services

Sustainable finance has become a global phenomenon. According to a report from the Organization for Economic Co-operation and Development, 91% of the world’s companies (by market capitalization) reported sustainability-related information in 2024. The European Union’s Corporate Sustainability Reporting Directive requires disclosure for 10 individual ESG topics. Japan has committed to reporting that aligns with the International Sustainability Standards Board’s (ISSB’s) standards by 2027; Singapore has adopted similar standards. India’s Reserve Bank introduced a Climate Risk Information System in 2025.

Several pressures are galvanizing this expansion. Regulators are not only mandating ESG disclosures, they are also integrating climate risk into prudential frameworks. Institutional investors managing tens of trillions of dollars are asking asset managers to demonstrate how ESG frameworks are shaping portfolios. Meanwhile, climate change is creating direct financial risk; for example, global climate disasters caused economic losses of $368 billion in 2024, according to a report from professional services firm Aon. And a growing segment of customers (particularly younger generations) prefer financial products that align with their values.

The result is a change in scale and scope. Sustainable debt issuance topped $1 trillion in 2024 for the fifth consecutive year. The global sustainable loan market reached €907 billion. Sustainability accounting has moved out of dedicated sustainability teams and into credit risk, capital allocation, product development, and executive accountability. More functions now rely on ESG data, making data management a priority across the organization.

What Is Transition Finance?

Green finance funds what’s already sustainable—solar farms, electric vehicles, certified green buildings. Transition finance funds the decarbonization of industries that can’t go green overnight. Steel, cement, aviation, shipping, and chemicals account for more than one-third of global carbon dioxide emissions. But those sectors have no immediate zero-carbon alternatives, and thus need capital to transition toward lower-emission operations on a realistic timeline.

That creates a credibility challenge. CDP, the global environmental disclosure nonprofit, reports that only 0.6% of all disclosing companies reported on all 21 indicators required to judge a transition plan’s credibility. Without rigorous criteria, transition finance risks becoming “transition washing”—in other words, labeling high-emission lending as sustainable without making real change.

Key Drivers of Sustainability in Financial Services

Four key forces are pushing financial institutions to embed sustainability into their core operations. Other factors (competitive differentiation, talent attraction, reputational risk) also play a role, but these four dominate the conversation:

  • Regulations: Disclosure mandates now directly affect operations. For example, the European Banking Authority’s 2025 guidelines require banks to integrate ESG risks into capital adequacy assessments and to build structured transition plans. Meanwhile, institutions operating in multiple jurisdictions face growing complexity. For example, KPMG’s 2025 greenwashing regulatory overview covers 28 jurisdictions that pursue varied enforcement approaches. To keep pace, many institutions now use AI-powered regulatory horizon-scanning tools to monitor rule changes across jurisdictions and spotlight new obligations before those rule changes take effect.
  • Customers: Consumer preferences are reshaping product design in retail banking, wealth management, and insurance. Research consistently shows that a large majority of millennials and Generation Z say they’ll prioritize sustainability when making financial decisions. In the wealth management market, women investors and younger generations inheriting wealth are boosting demand for ESG offerings.
  • Investors: Pension funds, sovereign wealth funds, and endowments increasingly require asset managers to demonstrate how ESG factors shape portfolio construction.
  • Environment: Climate change creates direct financial risk. Floods damage real estate used as loan collateral and droughts disrupt agricultural supply chains. Beyond climate, biodiversity loss and freshwater scarcity threaten the value of agricultural loans, infrastructure projects, and even sovereign debt.

ESG in Financial Services: A Brief Overview

ESG now influences the way banks assess credit risk, how asset managers construct portfolios, and the way insurers price policies. Here’s how that influence works in practice.

Operational Improvements

To be credible in promoting sustainability, financial institutions must start by cutting their own emissions, reducing energy and water use, sourcing renewable power, and tightening their procurement standards for office supplies, IT equipment, and service providers. These steps aren’t enough—an institution’s own footprint is small compared to its lending and investment portfolios—but they signal commitment and build internal capability.

Sustainable Investing

Asset managers increasingly treat ESG data as information that affects risk and return. Rather than simply screening out tobacco or weapons companies, most now integrate ESG factors into their standard analyses. For example, they may factor water usage into the valuation of a beverage manufacturer, or assess board diversity when evaluating management quality. Machine learning models help illuminate these signals at scale. They can score thousands of holdings on the basis of ESG criteria and spot portfolio-level exposures that manual reviews might miss.

Sustainable Lending

Two main loan types dominate sustainable lending. Green loans are defined by where the money goes. They fund specific projects, such as solar installations, building retrofits, and clean transportation. Sustainability-linked loans (SLLs) can be used for any purpose, but the interest rates rise or fall depending on whether the borrower achieves agreed targets, such as emissions reductions or supply chain improvements. SLLs have become the larger of the two markets, reflecting lenders’ appetite for tying capital to measurable performance.

Climate Risk Management

Banks model how climate change could hurt their portfolios, typically weighing two kinds of exposure through sustainability risk management. Physical risk asks whether a warming climate will damage the assets behind their loans—for example, will flooding destroy the collateral behind a mortgage? Transition risk asks whether the shift to a low-carbon economy will erode a borrower’s business—as in, will carbon pricing make an oil-and-gas company unprofitable? Tools like the Paris Agreement Capital Transition Assessment support this work by comparing the companies in a loan or investment portfolio by how well they conform to climate scenarios—measuring, for example, whether their projected production and capital spending in sectors like power, oil and gas, and autos line up with the emissions pathways needed to meet Paris Agreement targets. AI can enhance such analyses by running large numbers of physical- and transition-risk scenarios for a portfolio, then updating exposure estimates as climate and market data change.

ESG Reporting and Disclosure

Sustainability reporting is now a compliance function. The EU’s Sustainable Finance Disclosure Regulation requires fund managers to classify products by sustainability focus, and the ISSB standards have become a global baseline for investor-focused disclosure. What a firm must report starts with materiality—identifying which ESG factors matter enough to influence stakeholder decisions. Investor-focused standards apply financial materiality, which is how sustainability issues affect the business. The EU’s regime goes further. It requires double materiality—financial materiality plus material impacts on people and the environment, regardless of whether that shows up on the bottom line. At the same time, the stakes are rising. Sustainability reporting used to be self-disclosed with no outside check; now it is apt to be subject to independent audit.

ESG Integration and Governance

Sustainability changes outcomes only when it is hard-wired into the way a business makes decisions. So, it is often built into credit approvals and pricing, factored into risk appetite, and tied to executive incentives. European Banking Authority guidelines require European banks to have board-level oversight of ESG risks, with similar expectations rising in other markets. Many institutions now have Chief Sustainability Officers reporting alongside the CRO and CFO, forming a structure that works only when all three can draw on the same auditable ESG data.

3 Common Barriers in Sustainable Finance

Sustainable finance has momentum, but three persistent obstacles slow its progress. These barriers reflect tensions between short-term incentives and long-term goals, between marketing claims and operational reality, and between the demand for ESG data and the quality of existing data.

  1. Profitability vs. Sustainability

    Sustainability investments—such as retrofitting operations, financing green projects, and building ESG data systems—all bite into current budgets. The payoffs, however, show up much later, in the form of lower risk, efficiency gains, and new revenue. A commercial solar installation, for example, might take 5 to 10 years to pay for itself, even though it’s profitable over its 25-year life. That’s a tough sell when boards focus on quarterly earnings. But there is a counterargument—namely, that ignoring ESG risks is also expensive. Banks with high carbon exposure leave themselves open to stranded assets, and those underpricing physical climate risk face mounting losses as extreme weather intensifies. Some research even finds that stronger ESG performance is associated with lower financing costs. But the immediate, visible expense still weighs more heavily on decisions than the diffuse future benefit, which makes this a genuine barrier.

  2. Greenwashing

    Sustainable finance depends on trust. Capital flows to sustainable activity only if the labels mean what they say. Greenwashing—overstating sustainability credentials—breaks that trust. When claims can’t be verified, investors and customers discount all of them, honest and inflated alike. That makes it harder for institutions to be rewarded for real effort. Regulators have responded with force. Fines are hefty: Deutsche Bank’s DWS unit paid €25 million to German prosecutors in 2025 and $19 million to the US Securities and Exchange Commission—the largest greenwashing penalty the SEC has ever imposed on an asset manager. And in the UK, greenwashing is now a criminal offense under the Economic Crime and Corporate Transparency Act, with potentially unlimited fines. But that force now has some institutions understating or saying nothing about legitimate sustainability work—a retreat sometimes called “greenhushing.” Whether greenwashing or greenhushing, the market loses reliable information, degrading the trust and transparency that sustainable finance needs to function.

  3. Data Quality and Consistency

    Investment decisions, credit assessments, portfolio analyses, and regulatory disclosures are only as sound as the data they’re based on. And there’s the rub: ESG data now carries decision-grade stakes, but its quality isn’t always decision-grade. When the inputs are incomplete or inconsistent, the credit models, product classifications, and disclosures built on them inherit that weakness—and, given tightening assurance and greenwashing enforcement, so does the institution’s risk exposure.

    AI is starting to help. It can fill in gaps in supplier data, spot inconsistencies between reporting periods, and validate inputs against third-party sources. But the underlying data management infrastructure still matters. Automation works on top of that data infrastructure, not instead of it. Without consistent, well-governed data at the source, better tools can produce only polished versions of the same unreliable inputs.

Tools and Software in Sustainable Financial Services

For most financial institutions, sustainability data is scattered across lending systems, investment platforms, spreadsheets, and supplier emails, then assembled by hand when a report is due. That approach breaks down as disclosure and assurance requirements grow, so a fast-growing market of specialized software has emerged to collect, validate, and report ESG data with more rigor and less manual effort.

Carbon accounting tools calculate and track greenhouse gas emissions so institutions can report accurately and target reductions. For financial institutions, the most consequential measurement isn’t their own operational footprint, which is small relative to their lending and investment portfolios, but their “financed emissions”—the emissions of the companies and projects they fund. To measure these consistently, the sector has rallied around a common methodology, the Partnership for Carbon Accounting Financials (PCAF), now the standard for calculating financed emissions. PCAF itself isn’t software; rather, institutions are now beginning to use their own or third-party cloud-based carbon accounting platforms to build the PCAF methodology into their offerings. That way, portfolio emissions are calculated on a consistent, auditable basis that stands up to regulatory and investor scrutiny.

Besides carbon accounting, there are several other software categories that address specific needs. Dedicated ESG data management platforms collect and consolidate sustainability data from throughout an institution’s operations. Portfolio analytics platforms help asset managers evaluate ESG factors in their investments. Climate risk modeling tools run scenario-based analyses of physical risk (flood, heat, drought) and transition risk, examining different warming pathways. And regulatory compliance platforms manage disclosure across multiple reporting standards, identifying what each framework requires, highlighting where obligations overlap, and generating reports in the formats regulators expect.

AI-powered automation plays an important role in most or all of these tools, particularly for Scope 3 data—the indirect greenhouse gas emissions, including financed emissions, that are not generated by the company’s own operations. AI can pull data from disparate sources, validate supplier inputs against external databases, spot anomalies in emissions reporting, and even draft narrative sections of sustainability reports. Other differentiators include multiframework compatibility, audit trail functionality, and integration with core banking, ERP, and investment management systems.

Because each of these tools solves only a piece of the puzzle, ERP systems increasingly serve as the backbone of ESG reporting. ERP software already centralizes financial, operational, and supply chain data, so they provide a unified database that specialized ESG tools can feed into and draw from. Integrating ESG tools and ERP systems reduces manual data collection, improves consistency, and creates the audit trails that regulators increasingly require.

Centralize ESG Data With NetSuite ERP

When ESG reporting data resides in disconnected systems, reporting becomes manual, error-prone, and difficult to audit. NetSuite ERP Software for Financial Services consolidates financial, operational, and compliance data in one platform. This builds a natural foundation for sustainability reporting—the same system that tracks vendor costs, manages multi-entity consolidation, and enforces approval workflows can feed ESG disclosures with consistent, audit-ready data. For organizations tracking emissions or social metrics across multiple business units, NetSuite’s multi-entity management consolidates subsidiaries and standardizes reporting, while its controls, approval histories, and documentation support the assurance requirements regulators frequently demand for sustainability disclosures.

NetSuite’s built-in AI capabilities pinpoint trends and flag exceptions automatically. For example, AI can identify anomalies in emissions data or generate narrative explanations for variance reports. With Ask Oracle, teams can also query ESG and financial data in plain language, and AI agents can continuously monitor sustainability metrics within existing approval controls, identifying variances in supplier-reported emissions or a threshold breach in need of review. This helps teams monitor ESG performance alongside financial metrics without having to develop separate reporting workflows. Furthermore, role-based access with segregation of duties improves data integrity, which is crucial when ESG disclosures carry regulatory and reputational stakes. By integrating ESG data collection with core financial systems through NetSuite, financial services firms can reduce manual effort, improve ESG data quality, and produce defensible sustainability reports.

Nearly every major financial institution has committed to sustainability. Now, they must close the gap between their commitment and actual execution. This means building ESG criteria into credit models and loan pricing, and looking at climate risk in tandem with liquidity and capital. Perhaps most crucially, it means building a data management infrastructure capable of producing audit-ready disclosures.

Sustainability in Financial Services FAQs

What is sustainability in financial services?

Sustainability in financial services means integrating environmental, social, and governance factors into the way financial institutions operate, lend, invest, and report. This includes incorporating climate risk into credit decisions; offering green financial products, such as sustainability-linked loans; measuring and disclosing financed emissions; and aligning portfolios with net-zero commitments.

Why does sustainability matter in finance?

Sustainability matters in finance because environmental, social, and governance (ESG) factors directly affect financial risk and returns. Climate change creates physical risks (such as property damage or supply chain disruption) and transition risks (including stranded assets and policy shifts) that can impair loan portfolios and investment values. Regulators in the EU, UK, and elsewhere now mandate ESG disclosures and penalize greenwashing. Plus, investors and customers increasingly factor ESG performance into their decisions about where to bank, invest, and insure.