Who We Are
Sustaina International is a environmental and sustainability consultancy, delivering expert advice and services for industries, infrastructure projects, residential compounds, and resorts. Our team combines over 100 years of professional expertise and advanced academic credentials to help clients achieve sustainable solutions across solid waste management, climate change mitigation, green building certification, water management, and corporate sustainability.
Led by professionals with extensive project experience—including high-profile assignments for multinational firms—Sustaina excels at a wide range of services: from ESG and environmental impact reporting to green building certifications (LEED, EDGE), climate change assessments, and solid waste management strategies for mega cities. Our staff, faculty and consultants provide top-tier services and training for government ministries, international donors, and leading organizations across the MEA region and beyond.
Our Vision
To be a leading provider for creating added values in environmental services and sustainability solutions driving impactful change in the MEA region.
Our Mission
Our mission is to empower organizations and communities to achieve environmental sustainability by delivering expert technical advice, project management, and capacity-building services.
Our Values
Respect
Value Creation
Quality
Integrity
Impact
Meet Our Founder
Mohamed El Zayat
Dr. Zayat brings 18+ years of experience and a PhD in Environmental Engineering to every project. He’s passionate about helping organizations achieve real sustainability—whether it’s certifying green buildings (LEED, EDGE), leading environmental impact studies, or building solid waste management systems for large cities.
He’s guided international clients—including World Bank, AFD, KfW, and GIZ—through ESG reporting, climate change strategies, carbon footprint assessments, and life cycle analyses. As a faculty member at the American University in Cairo and Cairo University, Dr. Zayat also leads training and workshops to build capacity for ministries and agencies.
Our Pillars
Dr. Moustafa Abou Gabal
Senior Process Engineer
Eng. Aya Emad
Environmental Specialist
Eng. Yehia Mohamed
Senior Environmental Specialist
Mr. Sherif Salem
Financial Controller
Eng. George Efram
Sustainability Analyst
Our Advisors
Walid Ramadan is a seasoned Public Affairs Strategist and Economic Diplomat with over 17 years of experience in government relations, public policy, strategic communications, and international trade. Throughout his distinguished career with the Egyptian Government and in the private sector, he has excelled in advancing foreign direct investment (FDI), export promotion, and shaping international partnerships. Walid has played a pivotal role in crafting economic development policies, facilitating cross-border investments, and negotiating beneficial trade agreements for Egypt.
He currently serves as General Manager at Influence Public Affairs, leveraging his deep expertise in business negotiation and policy-making to drive sustainable growth, enhance regulatory frameworks, and foster global market integration. Walid is committed to fostering responsible, impactful business practices and enabling effective public-private cooperation for sustainable development.
Managing Director, Influence Public Affairs
Walid Ramadan
