Our team

Glenn Mandziuk, MEDes., MCIP, RPP, FRSA, is an internationally recognised and award-winning Chief Executive whose 30-year career spans tourism, hospitality, and economic development across the corporate, charitable, and not-for-profit sectors. A visionary leader and transformational strategist, Glenn has dedicated his life to advancing sustainability, equity, and inclusivity – turning industries and communities into global exemplars of responsible growth.

As Chief Executive Officer of the World Sustainable Hospitality Alliance, he leads the world’s most influential hospitality coalition, representing over 66,000 hotels and 8 million rooms, uniting CEOs, governments, investors, and NGOs to accelerate the transition to Net Positive Hospitality. Renowned for building high-performing organisations and forging powerful partnerships, Glenn has steered landmark initiatives that have reshaped global standards in carbon and water measurement, circularity, employability, and destination stewardship. His leadership has secured prestigious honours, including United Nations QUEST accreditation, Biosphere GOLD Certification, and recognition among the Top 100 Most Inspirational People in Global Travel and Hospitality.

Before his current role, Glenn served as President and CEO of the Thompson Okanagan Tourism Association, where he delivered a transformative 10-year strategy that became a United Nations-recognised model of sustainable destination management, advancing Indigenous relations, accessibility, and regional prosperity.

Equally at home in boardrooms, classrooms, and community halls, he is a sought-after keynote speaker who has inspired audiences on six continents, from UN Climate Conferences to the Future Hospitality Summit, sharing his conviction that business must be a force for good. Approachable, entrepreneurial, and deeply collaborative, Glenn has consistently demonstrated that strategic vision, when paired with humanity and courage, can leave lasting legacies for both people and places.

Nelson Garcia-Narvaez, FCPA, brings to the role of Senior Vice President of Finance, Operations and Governance a distinguished 25-year career steering financial sustainability and operational excellence within complex, mission-driven organizations. His proven leadership as Head of Finance and Governance for the £9m Buckinghamshire Healthcare NHS Trust Charity, where he managed a diverse investment portfolio of £8M and supervised teams of up to 35, demonstrates his exceptional capacity to build robust financial functions and governance frameworks from the ground up. Nelson’s strategic acumen is evidenced by his success in securing a permanent £1M grant from the UK Department of Education and his repeated achievement of “no findings” external audit reports, underscoring his rigorous adherence to UK GAAP, SORP, and charitable law. As a versatile financial leader who has transformed financial systems and risk management protocols for institutions like the NHS and Velindre NHS Trust, Nelson possesses the unique blend of strategic vision, hands-on operational mastery, and deep regulatory expertise required to oversee the Alliance’s integrated finance, HR, and IT strategies, ensuring the financial integrity and operational resilience essential for delivering our ambitious Net Positive Hospitality strategy.

Samar Assem brings to the role of Senior Vice President of Strategy and Investment a formidable record of driving financial sustainability and scalable growth across global markets, making her ideally suited to advance the WSHA’s dual mission through both its charity and commercial ventures. With a background that includes leadership roles at Modus Capital, where she directed marketing and scaling strategies for early-stage startups across four countries, and as Group Communications Brand Manager at Ghabbour Auto, where she increased digital engagement by nearly 10,000%, Samar has repeatedly demonstrated an exceptional ability to forge high-impact investment partnerships and maximize ROI. Her entrepreneurial acumen is further evidenced by her founding of The Growth Formula, an ed-tech initiative that has trained over 20,000 young professionals and partnered with more than 20 organizations to bridge the skills gap—directly aligning with the Alliance’s focus on livelihoods, skills development, and inclusive growth. Having also led transformative digital revenue projects in the hospitality sector at Fairmont Hotels, where she increased online sales by 606%, and navigated complex fintech partnerships amid challenging regulatory environments, Samar possesses a rare blend of strategic vision, commercial execution skill, and a profound commitment to creating meaningful social impact. This unique combination of experience will be instrumental in shaping the business models, external engagement strategies, and investment frameworks necessary to deliver the WSHA’s 5-Year Strategy.

Peter Andrews brings to the role of Senior Director of Global Programmes, Policy & Public Affairs a distinguished career spearheading high-impact sustainability initiatives and shaping global policy agendas at the nexus of industry and consumer advocacy. As Director at Consumers International, he helped lead the UN One Planet network and secured funding from partners like the German Government, demonstrating a proven ability to mobilise resources and build powerful coalitions. His prior tenure as Head of Sustainability at the British Retail Consortium (BRC) is marked by seminal achievements, including architecting the world’s first retail industry Climate Action Roadmap to Net Zero—adopted by 60 major brands and integrated into the UN’s Race to Zero campaign—and being appointed by the UK Home Office to co-chair a governmental advisory group on modern slavery. With extensive experience representing organizations at forums from COP26 to the UN Environment Assembly, and a track record of designing programmes that have driven policy action in multiple governments, Peter possesses a unique blend of strategic vision, stakeholder engagement prowess, and deep subject-matter expertise to authoritatively advance the Alliance’s global programme portfolio and amplify its voice as a leading force for Net Positive Hospitality.

Helena Egan brings to the role of Senior Director of Global Industry Relations a formidable global reputation as a relationship builder and strategic visionary, forged over decades of leadership at the highest levels of the travel and hospitality sector. Her proven expertise in uniting diverse stakeholders is exemplified by her tenure as Global Director of Industry and Government Relations at TripAdvisor, where she acted as a global brand ambassador and spearheaded international expansion, and her advisory roles for entities like Visit Finland’s Sustainable Travel Finland Academy and the Ras Al Khaimah Tourism Development Authority, where she reported directly to His Highness the Ruler. As the founder of Planet Egan and a seasoned non-executive board member for multiple international organizations, Hellena has consistently demonstrated an exceptional ability to design compelling market strategies, cultivate high-value partnerships, and champion sustainable development—skills perfectly aligned with driving the Alliance’s membership growth, securing transformative strategic alliances, and commercializing initiatives to deliver both profound impact and sustainable income for a Net Positive future.

Bolaji Omotade, FCCA, is the Director of Finance, Administration, and Trading Subsidiaries at the World Sustainable Hospitality Alliance, where she architects the financial and operational foundations for our Net Positive Hospitality strategy. She transforms financial integrity into a powerful engine for global impact. A strategic financial leader with a distinguished track record, Bolaji is a builder of resilient, mission-driven organizations. As Head of Finance at Housing Pathways Trust, she was the architect of a remarkable financial transformation, orchestrating the merger of three charities to generate £85k in annual savings and strategically managing treasury operations to save £38k in annual interest. Her expertise in designing robust financial systems and governance frameworks ensures not just compliance, but lasting operational excellence. At the Alliance, Bolaji’s unique fusion of financial discipline and strategic vision is pivotal. She ensures our financial sustainability and empowers the commercial ventures that fuel our charitable mission. She is the strategic operator who turns ambitious vision into actionable, financially sound reality, ensuring every resource is optimized to help the global hospitality industry become a net positive force for people and the planet.

Isabel Novoa is the Head of Global Social Empowerment at the World Sustainable Hospitality Alliance, where she champions the power of tourism to create opportunity and equity. She leads the Alliance’s World Academy and Employability Programmes, forging pathways to meaningful livelihoods across the globe. A seasoned expert and entrepreneur in sustainable tourism, Isabel’s career is a testament to her belief in business as a force for good. Her extensive on-the-ground experience in South America, combined with her global perspective as President of the International Social Tourism Organization (ISTO) and Sustainability Manager for Chile’s leading tour operator, Group Novojet, gives her a unique ability to bridge theory and practice. With an MBA from Georgetown University and a Master’s in Business Innovation, Isabel is a lifelong learner dedicated to innovative, socially-conscious strategies. She doesn’t just manage programmes; she builds movements that empower communities and ensure the hospitality industry becomes a net positive force for people everywhere.

Diane Binder is the Head of Global Accelerators at the World Sustainable Hospitality Alliance, a visionary leader mobilizing action at the intersection of people, planet, and prosperity. She forges powerful coalitions between the public, private, and academic sectors to turn the principles of Net Positive Hospitality into tangible reality in destinations worldwide. A seasoned executive and social entrepreneur, Diane has dedicated her career to building a more regenerative future. From her role as a former Senior VP at SUEZ and an advisor to President Macron, to founding Regenopolis and co-founding 700’000 heures Impact, she has consistently pioneered models for systemic change. Her exceptional ability to structure complex partnerships has mobilized over $2 billion for high-impact projects, demonstrating a proven track record of turning vision into scalable action. Recognized by the World Economic Forum as a leading global voice, Diane is more than a strategist—she is a catalyst. With advanced degrees from Georgetown and Harvard, and certified as a Regenerative Practitioner, she brings the expertise, credibility, and transformative energy needed to accelerate the Alliance’s mission and build a hospitality industry that actively heals our world.

Koko Tang is the Head of Global Impact Measurement to advance the Alliance’s leading work on measurement tools, standards, and data management. Koko is a sustainability strategist and coalition-builder across hospitality and tourism. Founder of Colorful Earth and co-founder of Vinetree Tourism, she mobilises cross-sector partners to turn nature and inclusion concepts into practice. She serves as a Board and Executive Committee Member of the Global Sustainable Tourism Council (GSTC), as well as the ESG Director at Fudan University’s Institute of Commerce, Civilization & Commons. She is a columnist for Bloomberg Green’s “ESG FRONTLINE,” a TEDx speaker, Tourism Expert Consultant to the Shanghai Chongming Government, and Expert Consultant to the China ESG Alliance. In 2022 she launched the Pollinator Protectors Alliance (PPA), a 40+ member coalition with Colorful Earth as Secretariat. She authored Fudan’s EMBA ESG textbook and practical toolkits on sustainable tourism, pollinator conservation and disability inclusion. Recognised with multiple international awards, Koko also serves on juries for leading sustainability prizes.

Abi joined the Alliance in July 2023 as Assistant to the CEO, supporting executive operations and strategic coordination across the organisation. In July 2025, she was promoted to Board, Committees and Governance Secretary, where she oversees governance processes and provides dedicated support to the Board of Trustees and its Committees.

With over a decade of experience in executive and governance support roles across global organisations, Abi brings a strong background in operational excellence, board coordination, and stakeholder management. She is passionate about building efficient, transparent processes that enable leaders to focus on strategic priorities and drive impact.

Chloe is responsible for building and maintaining strong relationships with our members and partners, supporting business growth and programme engagement.

Prior to joining the Alliance, Chloe worked for charitable foundations for over 10 years, Previously running the UK branch for The Hope Foundation UK, working on the ground in Kolkata with street connected children, and managing the UK office.

Chloe joined the Alliance in September 2022, and is very proud to be part of this movement towards a more sustainable future for our people and planet.

Michelle Mason is responsible for developing, supporting and implementing socially sustainable initiatives, fostering partnerships and advocating for socially responsible practices across the hospitality industry.

Michelle is a highly experienced HR professional with 20 years of management experience, specialising in recruitment. She is passionate about ethical recruitment and promoting equity, diversity and inclusion.

As Ethical Recruitment Programme Manager for the World Sustainable Hospitality Alliance, Michelle works with the hospitality industry to raise awareness of risks in the recruitment process and supports hotels to implement ethical recruitment and due diligence processes. She is passionate about making a change in the hospitality industry and is driven by her commitment to help others.

Shiksha manages our Employability Programme in the Asia Pacific region.

Shiksha has six years’ experience in education and community development, previously working for the Kherwadi Social Welfare Association – an Indian national non-profit where she managed the organisation’s activities in the Delhi NCR region.

Prior to joining World Sustainable Hospitality Alliance, Shiksha worked on the Headmaster Leadership development programme with the Mumbai municipal government, for Gandhi Fellowship.

Shiksha holds a Post Graduate Degree in Development Communication from Jamia Millia Islamia Mass Communication and Research Centre in Delhi, India.

With over 15 years of experience as an Executive and Personal Assistant, Jean Mitchell has supported senior leaders across the public, private, and not-for-profit sectors. She also spent several years abroad as a certified TEFL teacher, teaching English as a foreign language, which helped her develop strong cross-cultural communication and organizational skills. She excels at coordinating high-level projects and driving efficient executive operations. Passionate about empowering senior leaders, she delivers proactive support that helps them focus on strategic priorities and drive impactful results.

Bradley brings with him a strong background in sales, business development, and corporate partnerships. He has over a decade of experience in technology sales and, more recently, has led successful fundraising initiatives in the third sector—securing high-profile partnerships and delivering significant income growth. His proven success in generating sustainable funding streams, alongside his expertise in building corporate relationships, will be a valuable asset to our organisation as we continue to expand our impact.

Laszlo is the Finance Operations and Reporting Accountant at the World Sustainable Hospitality Alliance, where he supports the financial integrity of the organisation through accurate transaction processing, reconciliations, donor income reporting, and month-end support across both the charity and trading entities.

He brings several years of experience in accounting and financial operations from roles across professional services, hospitality, construction and SME environments, with strong expertise in financial controls, VAT, and process optimisation.

Laszlo holds an AAT Level 4 Diploma in Professional Accounting and is currently studying towards the ACCA qualification. He is highly detail-oriented, systems-focused, and passionate about enabling financially resilient, impact-driven organisations.

Esther is a chartered PR practitioner and communications specialist with over 30 years’ experience working across charities, corporates, in-house with Samsung, and will award-winning PR agencies.

Her sector expertise includes consumer healthcare (cancer and mental health), animal welfare, crime prevention, domestic abuse VAWG (Violence Against Women and Girls), consumer/lifestyle and CSR and sustainability.

She has a proven track record of successfully developing and delivering high-impact, measurable PR & engagement campaigns, media relations, and celebrity and royalty management.