The Consulting Report is pleased to announce The Top 25 Sustainability Consultants and Leaders of 2025. Sustainability sits at the center of how companies manage risk, design supply chains, and plan for growth. As climate pressures accelerate and resource constraints become more visible, businesses are looking for specialists who can help them rethink operations with long-term resilience in mind. The global sustainability consulting market—projected to reach $17.7 billion in 2025—continues to grow as the need for deep technical and strategic guidance expands.

This year’s awardees bring that guidance across industries and functions. Some focus on regulatory readiness, helping companies navigate ESG disclosures and due diligence mandates. Others work on decarbonization strategies, circular packaging systems, emissions accounting, or sustainability-linked tax policy. Their work shapes how sustainability takes form inside organizations and contributes to broader efforts to reduce emissions, conserve resources, and build more resilient systems.

Among this year’s awardees, Dr. Velislava Ivanova, Americas Chief Sustainability Officer and Global Strategy and Markets Leader at EY, leads a global team of over 500 professionals and has over 25 years of experience developing sustainability strategies for multinational companies across sectors. Jennifer Steinmann, Global Sustainability & Climate Practice Leader at Deloitte, draws on more than two decades of senior leadership to drive firmwide sustainability initiatives, having previously led Deloitte’s U.S. transformation strategy across innovation, technology, and operations. Chris LeWand, Global Power, Renewables & Energy Transition Leader at FTI Consulting, has overseen more than 900 projects across clean energy, fuels, and enabling technologies, guiding clients through energy transition strategy, capital advisory, and large-scale restructuring.

Recognized for their leadership in advancing sustainability strategy, regulation, and execution, these honorees are helping organizations reduce environmental impact, meet rising standards, and embed sustainability into core decision-making. This year’s awardees were selected through a careful review of each individual’s career achievements, technical expertise, and contributions to the field. Please join us in celebrating The Top 25 Sustainability Consultants and Leaders of 2025.

1. Christopher LeWand
Firm: FTI Consulting
Title: Senior Managing Director

Chris LeWand is FTI Consulting, Inc.’s Global Power, Renewables & Energy Transition (PRET) practice leader. Mr. LeWand has led many projects for conventional and renewable power and fuel sources, as well as enabling technologies such as advanced mobility, clean fuels, software, and storage, as well as broader infrastructure and other regulated industries. He is an expert in providing capital and M&A advisory, strategic and financial planning, business transformation and restructuring services, dispute advisory and valuation, interim management, and merger integration planning and execution assistance. His FTI PRET ~60-person team has served on over 900 projects, including involvement in many of the seminal events in the renewables space over the last 15 years.

Many clients have been assisted in developing and implementing clean energy and energy transition-oriented business models and approaches through strategic advisory services. This has included foreign and domestic entrants seeking to consider macro competitive, regulatory, and general market dynamics as well as situation- and entity-specific factors where key levers of challenge and success required careful analysis and consideration in order to drive optionality and optimized results.

Mr. LeWand’s certifications and licenses include as a CPA, CFA, ABV, CIRA, and CTP. He has served on boards, acted as board advisor, and taken roles as interim management such as CEO, CFO, CRO, and private equity fund MD for multi-billion-dollar enterprises. Mr. LeWand is also a frequent contributor at conferences and in thought leadership publications.

2. Velislava Ivanova
Firm: EY
Title: Americas Chief Sustainability Officer and Global Strategy and Markets Leader, Climate Change and Sustainability Service 

Dr. Velislava Ivanova is the EY Americas Chief Sustainability Officer and the Global Strategy and Markets Leader for EY’s Climate Change and Sustainability Services practice. She is a recognized sustainability expert with over 25 years of international experience in developing and delivering sustainability strategies for multinational corporations across sectors such as energy, manufacturing, retail, consumer goods, and pharmaceuticals. Dr. Ivanova works closely with senior executives in large, complex organizations to set sustainability goals, improve business performance, and embed sustainable practices across value chains and products.

In her role at EY, Dr. Ivanova leads the strategic direction and growth of EY’s sustainability services globally, overseeing a team of over 500 professionals dedicated to sustainability. She focuses on developing innovative solutions, sector strategies, and go-to-market efforts, as well as enhancing digital enablement and delivery methodologies. Additionally, she manages EY’s engagement with sustainability partners and alliances.

Dr. Ivanova is a frequent speaker at sustainability forums and has published thought leadership on topics including sustainability strategy, sustainable supply chains, climate and natural capital, and sustainability reporting. She holds a PhD in environmental biology and a master’s degree in pollution and environmental control from the University of Manchester, as well as a master’s degree in ecology from the University of Sofia in Bulgaria.

3. Thibaut Millet
Firm: EY
Title: Partner, Climate Change & Sustainability Services

Thibaut is a Partner in the Climate Change and Sustainability practice at EY. He has over 25 years of management consulting experience and was a pioneer in integrating sustainability considerations in business strategy. He started to help clients develop and implement sustainability transformation programs back in 2005.

Since then, he has been a trusted advisor to clients from the extractive, manufacturing, mobility, and financial services sectors. He is currently the Strategy & Market leader of EY’s Climate Change & Sustainability services group in Canada, one of the largest and most successful teams of dedicated sustainability practitioners in Canada.

He continues to challenge the status quo and push the boundaries of sustainability thinking for business. For example, he is helping numerous boards understand the complex, long-term implications of climate change and develop a climate-conscious corporate governance. He is also helping clients understand and redefine their relationship with natural capital and adapt their product and finance offerings to transition towards nature-positive, regenerative business models.

4. Meghan Harris-Ngae
Firm: PwC
Title: Partner

Meghan Harris-Ngae is a globally recognized leader in sustainability and business resilience. She is the Partner and National Leader of PwC Canada’s ESG Strategy, Integration and Transformation practice, and serves as PwC’s Global Leader of Sustainability for Private Business.

Named a Clean50 and Clean16 honouree, Meghan is known for helping boards and executives embed sustainability into business strategy to drive long-term business value. Meghan is not only advising clients on sustainability integration — she is actively shaping the future of the sustainability profession itself. Her work is transforming how chief sustainability officers (CSOs) and sustainability professionals are positioned as strategic drivers of business model reinvention and enterprise resilience in a rapidly evolving global economy. She is redefining the role of sustainability leadership from one of compliance to one of core business oversight, strategy, and value creation.

With over two decades of experience across sectors and markets, Meghan has built and led high-performing sustainability teams, advised multinational companies, and shaped bold transformation agendas in Canada and globally. Prior to PwC, she was a Partner at EY, where she built the firm’s Climate Change and Sustainability practice and led global ESG efforts for Mining & Metals.

Meghan contributes her expertise to the Canadian Climate Law Initiative and serves on the Board of Tree Canada. She holds a degree in International Relations from the University of Calgary and has completed executive programs at Harvard Business School.

5. Jamie Stone
Firm: PA Consulting
Title: Head of Design for Sustainability Practice

Jamie Stone is a leader in the Design, Sustainability, and Innovation business for PA Consulting. With over 25 years of experience in both agency and client-side roles, Stone has served as the global head of design for major FMCG and consumer health companies. He has extensive expertise in branding and packaging design, building brand loyalty, crafting consumer stories, and innovating with new packaging materials. Stone also has a deep understanding of the supply chain, enabling him to design margin-accretive products in complex matrix systems.

Over the past decade, Stone has concentrated heavily on sustainable packaging, establishing himself as a leading expert in plastic replacement materials and strategies for creating truly circular packaging solutions. Before joining PA Consulting, Jamie was the global head of design at GSK Consumer Healthcare, now Haleon, and previously served as a partner and head of design at The Brewery Design. Earlier in his career, he worked with P&G as a design manager. Jamie holds a degree in design for industry from Northumbria University.

6. Anthony Perrotta
Firm: PA Consulting
Title: Partner, Sustainability and the Regenerative Economy

Tony has more than 25 years of experience in sales leadership, FMCG/CPG/retail, sustainability, and innovation. At PA, he helps clients with growth strategy, sustainability, and regenerative economy projects. In essence, this means helping clients, governments, and organizations the world over go Beyond Net Zero. This includes work in alternative material development, material science, direct carbon capture and storage, and waste-to-value propositions.

In addition, Tony is the business lead responsible for accelerating the commercialization and scale-up of new technologies to reduce dependence on single-use plastics. The most recent examples of this work in action are two cross-industry collectives aimed at using dry molded fiber to replace single-use bottles and pharmaceutical packaging. The Diageo Paper-based Bailey’s Mini launch was led by his team.

Previously, Tony was the global head of sales and chief revenue officer at Plastic Bank, a blockchain-enabled social impact company. He also serves on multiple advisory boards, advising on fundraising, shaping revenue maps, market narratives, and actionable plans for startups focused on waste-to-value conversion, enhanced Bio-Char production and carbon sequestration, and social impact.

7. Wytse Kaastra
Firm: Accenture
Title: Senior Managing Director

Wytse Kaastra is the Senior Managing Director at Accenture, where he leads the firm’s sustainability services across EMEA. He is responsible for driving growth and expanding market share in sustainability, including through ventures and acquisitions. His areas of focus include ESG intelligence and reporting, net zero transitions, renewables, green hydrogen, e-mobility, and decarbonization of industry, as well as sustainable value chains, circularity, and green IT.

8. Anuj Shah
Firm: Stax
Title: Managing Director, ESG and Impact Advisory

Anuj A. Shah serves as Managing Director and Head of ESG and Impact Advisory at Stax, where he works at the intersection of strategic risk, sustainability, and ESG to deliver data-driven insights that drive both growth and resilience. In this role, he guides private equity sponsors, portfolio companies, and investment banks on the business case for sustainability, pinpointing risks and opportunities across the full investment lifecycle. Known for its research and analytics-driven approach, Stax supports its clients with actionable insights that fuel growth, improve profits, increase enterprise value, and inform better investment decisions.

Drawing on 25 years of experience across capital markets and responsible investing, Anuj is recognized globally for his strategic approach to integrating ESG and impact into mainstream business practices. As a trusted advisor, sought-after speaker, and respected contributor to leading publications, his thought leadership has consistently advanced sustainability conversations.

9. Jennifer Steinmann
Firm: Deloitte
Title: Global Sustainability Business Leader

Jennifer is Deloitte’s Global Sustainability business leader, providing cross-business leadership to make an impact that matters and drive critical changes around some of the most important challenges organizations face today and in the future.

She is a member of Deloitte’s senior leadership team and, for more than 25 years, has held various leadership positions across the Deloitte network, including Deloitte U.S. chief talent officer and Deloitte U.S. deputy CEO. She has also served on the Board of Directors for Deloitte Touche Tohmatsu Limited (DTTL) and the Deloitte Foundation. From 2015-2019, Jennifer was Deloitte’s U.S. chief transformation officer, leading strategy, innovation, and technology. She teamed with Deloitte’s businesses to set the organization’s strategic direction, address strategic issues and opportunities facing the organization, and evaluate changes in the business and competitive environment.

Jennifer was the founding sponsor of several Deloitte programs that drive positive social impact, such as Courageous Principals and the CORE Leadership Program. She is a trustee of the Boys & Girls Clubs of San Francisco and sits on the board of the Lycée Français of San Francisco. She holds a bachelor’s degree from Colgate University and an MBA from the Columbia School of Business.

10. Kensey Biggs
Firm: Teneo
Title: Senior Managing Director & Head of U.S. Corporate ESG

Kensey Biggs is a Senior Managing Director and Head of U.S. Corporate ESG with Teneo’s Strategy and Communications business. Kensey has over 20 years of experience as a trusted advisor, including over a decade counseling companies on ESG and investor relations. At Teneo, she advises companies on ESG strategy, oversight, integration, and reporting. With her deep experience in investor relations, Kensey brings an investor’s perspective to ESG, favoring a data-driven approach focused on the link between material sustainability factors and a company’s financial performance.

Before Teneo, Kensey was a Senior Vice President covering ESG at Truist, a top U.S. bank formed from SunTrust and BB&T’s merger. She helped build the new bank’s ESG practice from the ground up. Before Truist, she was a senior counselor at Abernathy MacGregor, where she built the firm’s first ESG client offering in 2017 and was a Founding Co-Chair of the company’s Global ESG Taskforce. Prior to Abernathy, Kensey ran her own consulting firm, Dalloway Advisory Group. Earlier in her career, she spent four years at Teneo, joining as the firm’s thirteenth employee in 2011. She started her career in finance at Goldman Sachs in New York.

In addition to this year, Kensey was named one of the Top 25 Sustainability Leaders in Consulting in 2022 and 2023. She serves on JUST Capital’s JUST Gen Committee and lives in Nashville with her husband and son.

11. Richard Andrews
Firm: KPMG UK
Title: Partner

Richard is a Partner in KPMG in the UK and was appointed Head of ESG in 2023. He leads KPMG’s ESG practice across the UK firm, helping clients develop and implement their ESG and sustainability strategies, and respond to market, regulatory, and reporting developments, together with oversight of KPMG’s ESG Tax, Legal, and Assurance practices. Richard has a particular interest in helping companies understand the commercial impact of sustainability and how they consider and respond to the issues of value creation and value protection, and harness evolving regulation to develop their businesses.

Richard is Chair of the Financial Services Faculty at the Institute of Chartered Accountants in England and Wales (ICAEW) and is a member of the ICAEW Council, where he contributes on both financial services and sustainability matters.

Richard has over 25 years of experience supporting clients across assurance and consulting. Previously, he was KPMG in the UK’s lead on UK Internal Controls and led the firm’s practice working with clients to respond to UK Corporate Governance Reform from 2021. He led the Financial Regulatory Reporting practice within Financial Services Consulting with extensive experience of acting as a skilled person for the UK Regulatory Authorities, delivering S166 reviews from 2019, and, before that, led KPMG's CASS advisory practice and co-led the CASS Audit practice, including responsibilities as the CASS audit partner or quality control partner for some of KPMG's largest CASS audits.

Richard served as a specialist advisor to the Treasury Select Committee of the House of Commons between 2011 and 2015.

12. Annabel Reoch
Firm: KPMG UK
Title: Partner and Global Head of Ethics and Compliance

Annabel is a Partner and Global Head of Ethics and Compliance at KPMG in the UK. Annabel is the UK Head of Social Impact and leads the firm’s Forensic ESG Integrity services, supporting clients in identifying, mitigating, responding to, and investigating ESG risks such as human rights, modern slavery, conflict minerals, greenwashing, and sustainability fraud and misconduct. 

Annabel has over 20 years of experience helping clients design, embed, monitor, and investigate ethics and compliance, including responding to allegations of modern slavery in the supply chain, illegal deforestation, and bribery and corruption. Annabel has led a wide variety of forensic investigations and compliance engagements in the UK and internationally.

Annabel’s recent experience includes assisting clients in preparing for sustainability regulations, such as the EU Deforestation Regulation (EUDR), the Swiss Ordinance on due diligence and transparency (VSoTR), the Economic Crime and Corporate Transparency Act (ECCTA), and the Corporate Sustainability Due Diligence Directive (CSDDD). She has led teams designing and executing supplier integrity due diligence programs and responding to regulatory inquiries, including where independent monitors have been appointed or in cases where settlement agreements require independent review of an organization’s compliance program. 

13. Francis Bouchard
Firm: Marsh McLennan
Title: Managing Director, Climate

Francis Bouchard is the Managing Director for Climate at Marsh McLennan. He is an accomplished global public affairs professional who has served as an advisor, catalyst, and contributor to a series of climate resilience and insurance initiatives.\

14. Mark Patel
Firm: McKinsey & Company
Title: Senior Partner

Mark Patel is a Senior Partner at McKinsey & Company. Patel focuses on serving clients where technologies come together in hard and complex ways for maximum global impact. He co-leads the McKinsey Platform for Climate Technologies and founded and leads the firm’s Internet of Things (IoT) work globally. He is also a leader in the global Semiconductors practice and a member of the McKinsey Technology Council.

15. Harry Morrison
Firm: Bain & Company
Title: Partner

Harry Morrison is a member of Bain's Sustainability & Responsibility practice, focusing on northwestern Europe. He holds deep expertise in developing ESG strategies and leading sustainability-focused transformations across consumer products and natural resources sectors.

16. Carlos Cerdán
Firm: RSM
Title: Partner

Carlos Cerdán is Partner of ESG and Sustainability at RSM. He is an expert with more than 15 years of experience in the design and integral implementation of sustainability in all types of companies and sectors.

17. Stephanie Weiler
Firm: Alvarez & Marsal
Title: Managing Director

Stephanie Weiler is a Managing Director within Alvarez & Marsal’s Environmental, Social and Governance (ESG) Services practice in Chicago. She specializes in ESG analysis and strategy. Weiler has extensive expertise in ESG disclosure, frameworks and ratings services, performance metrics, report development, investor positioning, and stakeholder engagement.

18. James Davis
Firm: Oliver Wyman
Title: Partner, Corporate and Institutional Banking, Co-head of Climate and Sustainability, Europe

James Davis is a Partner in Oliver Wyman’s Corporate and Institutional Banking practice and Co-Head of the Climate and Sustainability platform in Europe. From working as an engagement manager in wholesale banking in 2006 to his work now, Davis has seen many changes in the industry and is often consulted to provide an independent challenge on strategic issues.

19. Martijn Eikelenboom
Firm: Arthur D. Little
Title: Managing Partner

Martijn Eikelenboom is a Managing Partner at Arthur D. Little in the Netherlands and Global Head of the firm’s Sustainability Strategy practice. He is also a member of the senior leadership of the firm’s Strategy & Organization and Technology & Innovation Management global practices.

20. April Little
Firm: Grant Thornton LLP
Title: Principal

April is a Principal with Grant Thornton Advisors, LLC, in Houston, Texas. She leads the firm’s Tax Accounting and Audit Quality practice in Tax Practice Policy & Quality, focusing on tax accounting, financial reporting, and internal controls over taxes. She is also the tax practice leader of GT’s ESG & Sustainability practice, focusing on the tax implications along an organization’s environmental, social, governance, and sustainability journey.\

21. Cyril Garcia
Firm: Capgemini
Title: Head of Global Sustainability Services

Cyril Garcia is the Head of Global Sustainability Services and Corporate Responsibility Member of the Group Executive Board. He is responsible for the integration of sustainability across Capgemini’s portfolio of client services, as well as driving the Group’s own sustainability agenda. Garcia is also responsible for Capgemini’s Corporate Social Responsibility activity, and has been a member of the Group Executive Board since 2018.

22. Ashiss Dash
Firm: Infosys
Title: Executive Vice President

Ashiss Dash is the EVP & Global Head of Services, Utilities, Resources, Energy and Sustainability at Infosys. As the Global Head for a business portfolio that comprises over 12 industry verticals, Dash is helping navigate the digital future for leading Fortune 500 and Global 2000 enterprises. A seasoned digital transformation leader with over 3 decades of experience, Dash is focused on driving transformation strategies and shaping the future of industries through the adoption of emerging technologies.

23. Varchala Abrol
Firm: World Wide Technology
Title: Vice President, Global Sustainability and EH&S

Varchala Abrol is the Vice President of Global Sustainability, Business Continuity, and EH&S at World Wide Technology. Abrol is a senior executive with over 23 years of experience in sustainability and CSR/ESG optimization. She has a history of establishing satellite offices, driving quality operations performance, and leading CSR and ESG initiatives for organizations across more than 50 countries and five continents in both the public and private sectors. She has collaborated with IT companies such as Apple, Lenovo, IBM, and HP and retailers such as Home Depot, Pier 1, Hermes, and Abercrombie and Fitch, forging solid relationships with all stakeholders.

24. Cara Mooses
Firm: BDO USA
Title: Senior Director, Corporate ESG Strategy Leader

Cara Mooses is the Senior Director of Sustainability & ESG Corporate Strategy at BDO USA. She is responsible for translating BDO’s long-standing commitment to its people, clients, and communities into a purpose-driven sustainability and ESG strategy.

25. Nicholas Faull
Firm: Marsh 
Title: Head of Climate & Sustainability Risk

Nick Faull is the Head of Climate & Sustainability Risk at Marsh. In this role, Faull helps to develop Marsh’s global sustainability and climate services, including risk modelling and management, to support clients as they transition toward net-zero carbon emissions.