Sustainable Finance, ESG Due Diligence and Green Bonds
ESG and climate risk is already embedded in your deals and portfolios. The question is whether you have identified it before it affects your returns.
Aranca for Sustainable Finance Advisory
Stranded assets and governance failures are showing up in deal valuations and LP demands in ways not visible three years ago. Green finance instruments unlock capital, but only when the framework is credible. We help financial institutions, private equity firms and corporate treasury teams identify ESG risk before it hits returns and structure green finance that satisfies demanding investors.
ESG and climate risk assessed with investment-grade analytical depth
OBacked by experience across 5,000 M&A transactions and 12,500 financial models, we integrate ESG risk into valuation and deal structuring, not as a sustainability overlay.
Technology intelligence that stress-tests the sustainable investment case
Our climate technology practice stress-tests the commercial assumptions behind green bonds, transition finance and sustainable investment decisions in real time.
Investment-grade sector research across every major industry
Built over 2.5 million hours of combined research experience, our ESG risk assessments reflect how sustainability forces actually play out in specific industries and geographies.
Practical experience across evolving sustainable finance markets and frameworks
We support clients across jurisdictions where sustainable finance frameworks and green taxonomies are developing at pace, bringing practical experience in navigating emerging requirements.
Sustainable Finance and ESG Investment Solutions Across the Deal Lifecycle
Our solution areas cover every stage of the sustainable finance and investment lifecycle from responsible investment framework design and sector risk analysis through to transaction due diligence, green bond structuring and portfolio-level emissions management.
ESG Due Diligence for Mergers, Acquisitions and Investments
Identify material ESG and climate risks in every transaction before they affect valuation, post-acquisition costs or investor confidence, with the analytical depth your deal team, investment committee and LPs expect.
- ESG due diligence for investments, buy-side and sell-side.
- ESG valuation impact analysis.
- Financial and commercial due diligence with sustainability lens.
M&A Advisory and Feasibility Studies
Support every stage of the transaction lifecycle with sustainability intelligence, financial modelling and strategic clarity.
- Market opportunities and industry trend analysis.
- Identification of potential acquisition targets or divestment candidates.
- Technology landscaping and scouting.
- Valuation and financial modelling.
- Exit readiness and IPO ESG preparation.
Sustainability in Private Equity
Integrate ESG across the full PE lifecycle from fund-level strategy and deal sourcing through to portfolio company value creation and exit enhancement.
- ESG screening and deal sourcing criteria.
- Portfolio company ESG value creation programmes.
- Exit value enhancement through ESG positioning.
- Post-acquisition ESG integration.
Green Bond, Sustainability-Linked Bond and Transition Finance Advisory
Structure the green, social and transition finance instruments that unlock access to ESG-mandated capital, with frameworks that satisfy the EU Green Bond Standard, ICMA Principles and emerging national taxonomies.
- Green bond and sustainability-linked bond framework design.
- Transition finance strategy development.
- Impact investing strategy and performance evaluation.
- Green taxonomy development and alignment review.
- Project finance advisory for climate infrastructure.
Responsible Investment Advisory
Embed sustainability into your investment process, building ESG integration frameworks, responsible investment policies and reporting structures that satisfy LP expectations, regulators and market standards.
- Responsible investment policy and framework design.
- ESG integration into investment decision-making and IC process.
- Impact investment strategy and measurement framework.
- ESG investor communication and reporting.
Sector-Level ESG Risk Analysis
Understand how climate and ESG forces are reshaping risk and return profiles across the sectors you invest in or lend to, before they show up in valuations.
- Sector-level ESG risk screening and materiality mapping.
- Sector benchmarking and peer comparison.
Portfolio Climate Risk and Net Zero Alignment
Assess and manage sustainability risk across your investment or lending portfolio, with the tools to set credible net zero targets and measure progress against them.
- Portfolio ESG risk assessment and scoring.
- Net-zero portfolio alignment strategy.
- Portfolio decarbonization pathway development.
- ESG target setting at fund and portfolio level.
Financed Emissions Measurement and Disclosure
Measure the GHG emissions embedded in your lending and investment book with PCAF-aligned methodology and disclosure structure to satisfy regulators and investors.
- Financed emissions attribution by asset class aligned with PCAF.
- Portfolio-level emissions reporting and public disclosure strategy.
ESG Due Diligence on the Acquisition of a Renewable Energy Portfolio
Our Approach
Assessed material ESG and climate risks across 14 wind and solar assets spanning four European markets, covering physical climate risk, regulatory compliance, environmental permitting and community relations. Evaluated transition risk exposure including subsidy regime changes and grid connection risk. Reviewed governance structures and environmental incident history. Quantified the financial implications of identified ESG risks and modelled downside scenarios.
Impact
The deal team proceeded at a revised valuation incorporating two material ESG risk adjustments. The post-acquisition integration plan was implemented within the first 100 days, with the ESG KPI framework subsequently adopted across the acquirer's broader renewable energy portfolio.
Green Bond Framework and Reporting for a European Infrastructure Developer
Our Approach
Assessed the client's eligible project pipeline against the EU Green Bond Standard and ICMA Green Bond Principles, categorising assets by environmental objective and taxonomy alignment. Designed a green bond framework covering use of proceeds, project selection criteria and investor reporting commitments. Benchmarked against comparable issuances in the sector. Supported the second-party opinion process and developed a post-issuance reporting template.
Impact
The client successfully issued its inaugural green bond, attracting a 40 percent increase in ESG-mandated investor participation compared with its previous conventional bond issuance. The green bond framework has been used as the template for two subsequent issuances.
Portfolio Climate Risk Assessment for a Pension Fund
Our Approach
Assessed physical and transition climate risks across listed equity and fixed income holdings using PACTA and proprietary scenario analysis. Modelled portfolio exposure under 1.5 degree and 2 degree scenarios, quantifying stranded asset risk in fossil fuel holdings. Assessed physical risk exposure across real asset holdings at asset level under 2050 and 2100 climate scenarios. Benchmarked carbon intensity against peer pension funds.
Impact
The fund published its first TCFD-aligned climate risk report within three months, meeting disclosure expectations ahead of mandatory pension fund climate disclosure requirements. The portfolio decarbonization pathway informed a reallocation that reduced the fund's weighted average carbon intensity by 18 percent within 12 months.
ESG Integration Framework for a Mid-Market Private Equity Firm
Our Approach
Assessed the firm's existing ESG practices across the fund lifecycle, identifying gaps against UNPRI and ILPA ESG guidelines. Developed a fund-level ESG policy and responsible investment framework with exclusion criteria and LP reporting commitments. Built an ESG due diligence toolkit for deal teams and a portfolio company monitoring programme with a standardised annual data collection process and performance scorecard.
Impact
The firm launched its ESG framework ahead of a new fund raise, with the responsible investment policy and LP reporting commitments directly cited by three existing LPs as a positive factor in their re-up decision. The deal team ESG toolkit was used on every new transaction in the subsequent 12 months.
Sustainable Finance Advisory in Practice
The following engagements illustrate how we help financial institutions, investors and corporate treasury teams manage ESG risk, structure green finance and build responsible investment frameworks.
Insights from our Industry Experts
Built by global experts, our insights are grounded in evidence and real world experience, helping you stay ahead.
Hydrogen Economy - Are Liquid Hydrogen Carriers the answer?
Hydrogen, despite being the smallest and the lightest of all elements, is difficult to transport. Amid its rising popularity as an alternative fuel, the logistics of delivery and storage pose a concern.
Hydrogen Economy - Prospects and Challenges
Climate change is a reality, necessitating the quick adoption of low carbon and renewable sources of energy. Hydrogen is one such source of clean energy which has the potential to transform industries.
Hydrogen Storage in Solid State
The adverse effect of climate change has become more widespread in recent years. One of the main solutions to control this disaster is to shift focus toward clean sources of energy such as hydrogen.
Green Hydrogen in Circular Economy
The urgent need to reduce greenhouse gas emissions has prompted countries worldwide to commit to net-zero targets, driving the rapid adoption of low-carbon and renewable energy sources.
Green Steel: How one of the world's most emission intensive industry plans to decarbonize
Steel is the backbone of societies, buildings, equipment and infrastructure across the globe. It is used in the manufacturing of a range of products, from cars and machines to construction materials for our offices and homes, thereby forming a critical element of contemporary life.
What is ESG due diligence and how does it differ from traditional financial due diligence?
Traditional financial due diligence assesses financial performance, structure and risks. ESG due diligence identifies the material sustainability risks and opportunities not captured in financial statements but that affect long-term value, including physical and transition climate risk, governance quality, supply chain sustainability exposure and stranded asset risk.
The most rigorous ESG due diligence integrates these factors into valuation and deal structuring rather than treating them as a separate sustainability report. The gap between those two approaches is increasingly visible in post-acquisition performance and in the questions LP and regulatory bodies are asking.
How do green bonds work and what is required to issue one?
A green bond is a debt instrument where proceeds are ringfenced for eligible environmental projects, structured against a framework aligned with the ICMA Green Bond Principles or the EU Green Bond Standard. Issuing one requires designing a use-of-proceeds framework, establishing project selection criteria and proceeds management controls, obtaining a second-party opinion from an independent verifier, and committing to annual allocation and impact reporting.
Sustainability-linked bonds differ in that their financial terms are tied to the issuer's performance against predefined sustainability targets rather than specific project proceeds.
What are financed emissions and why are they a regulatory priority?
ESG integration in private equity is most effective when embedded at every stage rather than applied as a one-off due diligence exercise. At the fund level, this means establishing an ESG policy, responsible investment framework and LP reporting structure. At the deal level, it means integrating ESG screening at early stages and full ESG due diligence before investment.
Post-acquisition, it means establishing ESG KPIs, providing value creation support and using ESG performance as a source of exit value. At exit, credible ESG positioning demonstrably improves buyer quality and purchase price in processes where ESG due diligence by the acquirer is now standard.
What is the difference between impact investing and ESG investing?
ESG investing integrates environmental, social and governance factors into investment analysis to manage risk and identify opportunities, without necessarily requiring specific, measurable environmental or social outcomes. Impact investing intentionally targets investments that generate specific, measurable positive outcomes alongside financial returns, with impact measurement built into the investment process.
The distinction matters for fund positioning, LP communication and regulatory classification under frameworks like SFDR, where Article 8 and Article 9 classifications reflect the degree of sustainability integration and impact intentionality.
How should a private equity firm approach ESG integration across the fund lifecycle?
ESG integration in private equity is most effective when embedded at every stage rather than applied as a one-off due diligence exercise. At the fund level, this means establishing an ESG policy, responsible investment framework and LP reporting structure. At the deal level, it means integrating ESG screening at early stages and full ESG due diligence before investment. Post-acquisition, it means establishing ESG KPIs, providing value creation support and using ESG performance as a source of exit value.
At exit, credible ESG positioning demonstrably improves buyer quality and purchase price in processes where ESG due diligence by the acquirer is now standard.
Frequently Asked Questions About Sustainable Finance and Responsible Investment
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