Alternate Kft.
Nearly 20 years, more than 200 successful assignments, 50+ sustainability reports, and over 500 professionals trained – all through our domestic and international client base.
Unique Method
The foundations of our efficiency: a holistic approach, iterative and process-based collaboration, organic organizational development, pragmatic thinking, and practice-oriented solutions.
Credibility
Commitment to progressive values and high ethical standards, consistency, professional expectations, honesty, openness, and reliability.
Professionalism
Our goal is to strengthen sustainable and responsible corporate operations through up-to-date expertise, continuous learning, and forward-looking solutions.
Founders
Fertetics Mandy
Founder-Owner, Managing Director, Lead Consultant, Accredited ESG Advisor
I am a sustainability expert with a background in economics and environmental management, educator, trainer, and transformative team coach. For 25 years, I have worked in sustainable business models and responsible corporate governance, striving for a better world. I combine sustainability development with organic organizational development and have extensive experience in sustainable procurement, stakeholder engagement, reporting, strategy development, business ethics, and diversity and inclusivity.
With international experience, I have conducted more than 25 sustainability audits worldwide (e.g., China, India, USA), gaining hands-on insight into supply chain sustainability.
As a lecturer, I teach at Corvinus University of Budapest MBA and Executive MBA programs, as well as at METU’s sustainability courses, and I am an instructor in accredited ESG advisor programs at both institutions. I have taught in more than eight cohorts of the Sustainable Business Academy’s Certified Sustainability Manager (CSM) program since its inception. I also play an active role in founding and serving on the advisory board of the Hungarian Sustainability Professionals Network, and I am co-founder and jury chair of the Sustainable Procurement Award.
In 2023, I was named among the Top 25 most recognized sustainability experts, and students of the CSM program have repeatedly awarded me the recognition of “most practice-oriented instructor”.
My passions include diversity and inclusion, supporting social entrepreneurs, and developing self-awareness – for example, through psychodrama.
Urbán Katalin
Founder-Owner, Accredited ESG Advisor
I have more than 25 years of experience in sustainability performance measurement, reporting, data disclosure, and reporting standards (GRI, ESRS), as well as corporate EHS management, carbon footprint calculation, and SbTI-related work.
In 2021, I received the BCSDH Women Leaders Award for “achieving results with innovative development solutions and leading my teams to success.” In addition to my expert role, continuous development of my leadership skills is a priority for me.
I was responsible for preparing Hungary’s first sustainability report, was a member of the GRI Stakeholder Council, and as a GRI-certified trainer contributed to the training of over 120 professionals alongside Mandy Fertetics under the Alternate name.
I spent more than 10 years as EHS Manager at Grundfos Hungary before moving into a global role, and I currently serve as Global Head of Sustainable Finance at Grundfos.
At Alternate, I now participate as a silent partner and only occasionally teach or contribute to very few projects.
Team Members
Cseh Annabella
Sustainability Consultant, Accredited ESG Consultant
At the start of my career, I wasn’t sure where I was heading, but I soon realized I wanted work that goes beyond daily tasks and has a genuine positive impact on the world. I deliberately sought paths that intersected environmental protection, social responsibility, and systems thinking.
I earned my Master’s degree in Resource and Environmental Management at BME, studied urban development in the Netherlands, volunteered in climate-friendly municipal programs, and in 2023 obtained my Certified Sustainability Manager qualification. I also gained experience in multinational corporations in business development, client relations, reporting, and team leadership, which gave me firsthand insight into how organizations operate internally and how sustainability can be integrated.
As a sustainability consultant at Alternate, I have found my calling – combining my work experience with the values I believe in. I am primarily responsible for sustainability reporting and sustainable procurement, while also managing projects and client relations. Today, I do work where my professional expertise and personal values not only coexist but strengthen one another.
Szkalisity András
Sustainability Intern
I earned my MSc in Geography in 2025, and since September of the same year I have been a PhD student at the Doctoral School of Earth Sciences at the University of Szeged, as well as a sustainability intern at Alternate. Thanks to my family, I have paid attention to living sustainably from an early age. I mostly commute by bike, try to minimize my use of plastics, and strive for energy efficiency in daily life.During my geography studies, I learned a lot about sustainability but had limited opportunities to approach the topic from a corporate perspective. I believe corporate efforts toward sustainability will be one of the key issues of the 21st century, and I want to contribute to these efforts to the best of my ability.At Alternate, I participate in various consulting projects, such as preparing double materiality benchmark analyses, updating sustainability reports, and liaising with clients’ supplier networks.
I consider community awareness-raising important — I have organized local events as part of the national “TeSzedd” litter collection initiative and sustainability challenges. Our research on micromobility and energy poverty, in which I was actively involved, received professional recognition.
Tran Thanh An (Anna)
sustainability intern
I am a third-year Data and Business Analytics student at IE University with a particular interest in the intersection of technology and sustainability. My interest in sustainability began in high school when I participated in a sustainability seminar and then in a Peace Designer Project competition. There, my team and I developed a sustainability action plan and installed selective waste bins at our school — still in use today. I am interested in renewable energy, reducing food waste, and slow fashion. I believe that data-driven approaches play a key role in creating a more sustainable future. At Alternate, I support sustainability consulting projects through data collection, updating sustainability reports, helping develop training materials and educational blog posts, and working on brand materials.
Partners, that we worked with
As a micro-enterprise, it is important for us to surround ourselves with an outstanding network of experts whose skills or konowledge complement ours — allowing us to expand our capacity, impact, and competencies to meet our clients’ needs and address sustainability challenges. We collaborate with excellent specialists in areas such as noise management, environmental protection, diversity, organizational development, and accessibility.
