How Africa’s best-run companies approached sustainability in 2025
By Ethical Business Team
When Solomon Quaynor, vice-president of the African Development Bank, stood before delegates at the inaugural Africa ESG Forum in October 2024, he delivered a stark message to the continent’s boardrooms. Environmental, social and governance disclosure, he declared, is no longer merely good practice but essential for Africa’s ability to secure capital and thrive in the 21st century. By 2025, this message has translated into action. Across the continent, boards have moved decisively from viewing sustainability as compliance overhead to treating it as strategic bedrock.
The journey has been marked by three distinct approaches that emerged as dominant strategies in 2025. These reflect not imported templates but pragmatic responses to African realities, shaped by regulatory momentum, investor pressure and competitive necessity. Companies that hesitated risk being left behind in markets where ESG credentials increasingly determine access to capital.
Embedding climate finance through green bonds and sustainable debt
African boards discovered in 2025 that climate-aligned capital instruments are no longer the preserve of development banks and sovereigns. The continent’s green bond market, though still modest by global standards at roughly USD 9.6 billion across 76 issuances, has undergone a structural transformation. Financial institutions and corporations now account for approximately 60 per cent of market value, a reversal from the period between 2013 and 2018 when governments and multilateral financiers dominated almost entirely.
The African green bond market registered compound annual growth of 14 per cent from 2019 to 2023, a pace exceeding Europe’s 11 per cent though trailing Asia-Pacific. More tellingly, the average size of issuances has decreased whilst the number of issuers has expanded, signalling democratisation of access. Kenya’s green bond market offers a case study. Following regulatory guidance from the Nairobi Securities Exchange and pioneering transactions in 2019, Kenyan boards in 2025 continued structuring climate-linked debt that anchors renewable energy and sustainable infrastructure investment. Kenya’s green bond market raised USD 1 billion in 2025 as firms set out to build solar farms projected to reduce carbon emissions by 500,000 tonnes annually.
South Africa’s deeper capital markets have enabled financial institutions to take the lead. Nedbank issued substantial green and sustainability-linked bonds with large tranches together approaching USD 900 million, funding renewable energy and sustainable buildings. Nigeria expanded its sovereign green bond programme with a ₦50 billion issuance in June 2025, the third such transaction, demonstrating sustained policy commitment to embedding environmental finance within the national debt strategy.
For boards, the strategic logic is straightforward. Development Finance Institutions and commercial banks now directly link ESG performance to risk pricing. Weak ESG integration translates to higher capital costs; strong integration opens access to patient, long-term funding. In Africa, where infrastructure projects often require concessional funding or blended structures, this calculus matters profoundly. Projects that embed ESG from the outset are more bankable and attract capital at better terms.
The shift extends beyond issuance mechanics. Boards in 2025 embraced green bonds as governance tools, establishing dedicated sustainability committees at board level to oversee implementation and ensure climate considerations permeate strategic decisions. The instruments demand rigorous reporting on fund allocation and project outcomes, creating accountability structures that outlast individual transactions. Access Bank Nigeria exemplifies this approach, embedding ESG into core operations through sustainability-linked loans whilst publishing third-party assured ESG reports.
Linking executive compensation to sustainability targets
Perhaps the most consequential governance innovation adopted by African boards in 2025 involves tying executive incentives directly to ESG metrics. This mechanism transforms sustainability from aspirational language in annual reports into hard commercial reality that shapes management behaviour.
The practice gained momentum following regulatory updates. In January 2025, the Johannesburg Stock Exchange updated its Sustainability Disclosure Guidance to align with IFRS S1 and IFRS S2 standards, introducing changes that simplified reporting processes whilst ensuring compliance with local and international regulations. Around the same time, South Africa’s Department of Trade, Industry and Competition initiated public consultation on mandatory sustainability reporting obligations. These regulatory shifts provided cover for boards to embed more aggressive ESG targets into compensation structures.
The strategic rationale is compelling. When boards link executive performance to sustainability targets, they signal that responsible governance is not optional. Companies that integrated ESG metrics into incentive structures in 2025 found the practice particularly effective for addressing historically weak governance that undermined investor confidence. Transparent decision-making, inclusive ownership structures and strong compliance mechanisms now carry direct financial consequences for executives.
Equity Group Holdings in Kenya reached a milestone in this journey by forming a Group Board Sustainability Committee to oversee ESG matters, signalling that sustainability oversight now sits at the apex of corporate decision-making. Safaricom, another Kenyan leader, designated a sustainability manager as a distinct management function, professionalising ESG beyond traditional corporate social responsibility offices.
The compensation linkage addresses a fundamental agency problem. Historically, executives faced pressures to deliver short-term financial results that could conflict with longer-term sustainability investments. By embedding ESG targets into variable pay, boards aligned time horizons. Executives whose tenure and compensation depend partly on achieving carbon reduction targets, improving supply chain traceability or meeting diversity benchmarks make different strategic choices than those evaluated solely on quarterly earnings.
The approach carries risks. Poorly designed metrics can encourage gaming or box-ticking. Some boards in 2025 struggled to identify material ESG indicators that genuinely correlate with long-term value creation rather than fashionable reporting items. The most sophisticated implementations focus on measurable, auditable outcomes tied to business fundamentals: emission reductions per unit of revenue, water usage intensity, serious safety incidents or verified community development impacts.
For African firms competing for international capital, the practice has become table stakes. ESG in Action Africa observed that when boards link executive performance to sustainability targets, they send a message that responsible governance is not an optional exercise. Institutional investors increasingly demand evidence that sustainability commitments extend beyond words into compensation structures that shape management incentives.
Establishing dedicated board sustainability committees with formal oversight powers
African boards in 2025 executed a governance restructuring that elevated sustainability from a peripheral concern to a central pillar of corporate oversight. The mechanism is elegantly simple: dedicated board committees with formal mandates to oversee ESG strategy implementation and ensure sustainability considerations inform all significant corporate decisions.
The Nairobi Securities Exchange encouraged listed companies to establish dedicated sustainability committees at board level to oversee implementation of ESG strategies. This development signals a fundamental shift in how boards allocate attention and authority. Sustainability committees typically comprise non-executive directors with relevant expertise, meeting regularly to review climate risks, social impacts and governance effectiveness.
The committees serve multiple functions. First, they create dedicated space in board agendas for sustainability discussions that might otherwise be crowded out by immediate financial or operational concerns. Second, they concentrate expertise. Boards increasingly recruit directors with backgrounds in environmental management, climate science or social impact specifically to staff these committees. Third, they establish accountability channels. When a board sustainability committee exists, management teams prepare formal reports, track metrics and face structured questioning on ESG performance.
Kenya’s regulatory framework supported this evolution. The Capital Markets Authority Code of Corporate Governance Practices for Issuers of Securities sets minimum standards for stakeholders of publicly listed companies and requires boards to adopt formal strategies for sustainability. The code explicitly states that attention must be given to ESG aspects that underpin sustainability.
The banking sector moved fastest. In September 2022, Kenya began mandatory climate-related reporting for commercial banks, with the Kenya Bankers Association launching a Climate-Related Financial Disclosures Template in September 2023 to facilitate compliance. These requirements drove banks to establish board-level oversight mechanisms capable of reviewing complex climate risk assessments and ensuring appropriate management responses.
South African companies embraced similar structures. Equity Group Holdings’ formation of a Group Board Sustainability Committee exemplifies the institutional architecture now emerging across the continent. These committees typically exercise powers delegated by the full board, including approving sustainability strategies, reviewing material ESG risks, overseeing disclosure processes and monitoring performance against targets.
The governance innovation addresses a practical problem: ESG considerations cut across traditional board committee boundaries. Climate risks affect both audit committees (financial statement implications) and risk committees (enterprise risk management). Social issues span human resources and stakeholder relations. Governance questions touch nomination, remuneration and audit functions. A dedicated sustainability committee provides integration, ensuring ESG considerations inform rather than fragment board deliberations.
Critics argue the structure risks creating a silo where sustainability gets quarantined rather than mainstreamed. The strongest implementations avoid this trap by ensuring sustainability committee chairs also sit on other key committees and by requiring regular joint sessions. The committee becomes a coordination mechanism rather than an isolated workstream.
For African firms, the committee structure carries additional significance. It demonstrates to international investors that sustainability receives board-level attention commensurate with its importance. In markets where governance standards have historically lagged, visible board engagement with ESG matters helps overcome skepticism about corporate commitments.
The road ahead
These three strategies share common characteristics. Each translates sustainability from aspiration into institutional structure. Green bonds and sustainable debt create financial mechanisms and reporting obligations that persist beyond individual transactions. Compensation linkages embed ESG performance into the personal incentives of senior management. Board committees establish permanent governance architecture for sustainability oversight.
The approaches also reflect African market conditions. Green bonds address acute capital scarcity and high borrowing costs by accessing pools of patient, sustainability-focused capital. Compensation structures tackle governance weaknesses that have undermined investor confidence. Board committees respond to regulatory pressure whilst building internal capacity for climate risk management and stakeholder engagement.
Yet implementation remains uneven. Kenya’s governance structure for ESG remains underdeveloped whilst standardised reporting frameworks are lacking, with notable gaps in compliance and enforcement. Many companies struggle to integrate ESG into core business strategies rather than treating it as a parallel compliance exercise.
The stakes are considerable. Africa requires between USD 1.3 trillion and USD 1.6 trillion in climate finance through 2030 to address climate change and achieve sustainable development goals, according to African Development Bank estimates. The continent attracts merely 3 per cent of global green climate finance despite hosting 30 of the world’s 40 most climate-vulnerable countries. African boards that successfully embed these three strategies position their companies to access a growing pool of sustainability-linked capital whilst building resilience against climate shocks. Those that treat ESG as paperwork risk being locked out of capital markets that increasingly price sustainability performance.
The question facing African boardrooms at year-end 2025 is no longer whether to engage seriously with ESG but whether their institutional responses match the urgency of both market demands and environmental realities. The three strategies that emerged this year provide a template. Whether they prove sufficient will become clear in the transactions and crises ahead.
