Leading consultants in global equity and sustainability

EY, one of the 'Big Four', offers robust ESG and sustainability consulting, combining its strategic expertise with climate change consulting. Its services in compliance, reporting, and risk management are essential for global clients looking to navigate the complex regulatory landscape and stakeholder expectations.

Accenture is a leading consultancy in integrating sustainability with technology and data, making it crucial for large organizations looking to operationalize ESG at scale. Its focus on execution and supply chain transformation positions it as a key player in global equity and sustainability.

Bain & Company is one of the leading management consulting firms in ESG and sustainability, highly valued for its work in renewable energy. Its focus on creating value through sustainability makes it an essential consultancy for companies seeking a positive and profitable impact.

BCG is a global leader in ESG strategy and climate transformation, respected for its analytical rigor and ability to model complex scenarios. Its focus on aligning sustainability objectives with core business strategy is fundamental for organizations' long-term resilience.

Deloitte has built one of the largest global sustainability and climate practices, advising companies and public bodies on the transition to a low-carbon economy. Its multidisciplinary approach and emphasis on implementation make it crucial for integrating sustainability into decision-making and value creation.

ERM is a purpose-driven sustainability consultancy, focused on integrating sustainability into the core of its clients' businesses. Its specialization makes it a key player for companies seeking a significant and lasting impact on their environmental and social footprint.

KPMG is recognized as a global leader in sustainability consulting by Verdantix in 2026, noted for its value-driven approach to sustainability transformation. Its ability to integrate sustainability into strategy, operations, and governance makes it ideal for companies requiring a strategic lens for climate and the circular economy.

McKinsey & Company is one of the most influential voices in ESG strategy and sustainability transformation, advising boards on climate strategy and ESG value creation. Its differentiation lies in its ability to connect ESG with competitive advantage and long-term value, making it crucial for strategic decision-making.

PwC, another of the 'Big Four', offers environmental consulting services in compliance, reporting, and risk management, combining its strategic expertise with ESG and climate change consulting. Its role is vital in helping companies navigate the growing regulations and stakeholder expectations regarding sustainability.

Systemiq is a purpose-driven sustainability consultancy, focused on systems-level ESG transformation, working with governments and corporations. Its holistic, mission-oriented approach, emphasizing ecosystem-level change, differentiates it and makes it crucial for addressing complex challenges like climate transition.

WSP is recognized as the world's leading environmental and sustainability consulting firm, with a vast network of specialists and continuous investment in advanced analytics. Its 'Earth & Environment' area is fundamental for offering excellent services in applied sciences and engineering solutions in sustainability, consolidating its global leadership.

Omawa Ecological Footprint Ltd. stands out for its innovative approach to measuring and managing the ecological footprint, offering personalized solutions that integrate social equity into sustainability strategies. Its rigorous methodology and commitment to reducing global environmental impact position it as a leader in sustainability consulting.