InVendor Advisory Services

Invendor Advisory Services in boutique end-to-end management consultancy.

We In Invendor aim to serve our Clients, Society and Environment by building and optimising business flows. We help them manage change – whether its in ownership, funding markets, new products or new systems.

We in Invendor are a team of CHANGE MAKERS. The ultimate motivation and our core value that drives us is to create IMPACT to our clients, to society and to our environment.


Invendor is member of EPCA, the European Payments Consulting Association.



Zsombor is a management consulting professional with a specialization in e-business, fintech and payments. He is a founder, executive or board member of a number of companies. He holds MSc degrees in Finance and TTC, attended the CEMS Master in International Management programme and PhD studies in Finance. Zsombor has diverse work experience to draw on, gained at Citibank, KPMG and Wizz Air as well as having international project experience from 15 countries. He also won numerous professional awards; and he is a sought-after speaker. Zsombor served as the chairman of EPCA, the European Payments Consulting Association in 2014.



Advisor, investor, change-maker, service designer and community builder - Antonia is passionate about growing companies. She started her carrier in McKinsey&Co and have experience in both corporate and start-up sectors in B2B solutions and ICT, Banking/Fintech and Energy Sectors. Antonia’s approach to scale-up companies is to build the business flows to support product validation and growth. Fundraising, market expansion and exit are processes we approach in a lean way, where strategy is validated and finetuned overtime for optimal results.

Dr. László


László is a seasoned executive manager and lawyer with a wealth of management and professional leadership experience. He was formerly an Executive Manager with MrCoin Ltd. Hungary's first cryptocurrency exchange and its operator Shinrai Kft.  Laci is a pleasant individual who believes in positive motivation and has the great ability to bring team members together to achieve a common goal. László holds a master of science in law from the Faculty of Law of Eötvös Loránd University.



Kata is a product leader with 15+ years of experience working in different areas of IT and 10 years of SaaS product management in an international environment. She has significant experience establishing and leading cross-functional teams delivering large-scale products globally (with mobile, web and desktop apps) from their concept through completion and go-to-market. Kata is passionate about building and empowering motivated teams who create best-in-class product experiences that people love.



During his 15-year career István gained a thorough understanding of what makes digital projects tick. He spent years on both the agency and client sides - in small teams and at large enterprises as well.
Originally graduated as an economist, Istvan chose to focus on people during his career and this approach helped him level up his contribution from operative project management level tasks to team leadership, and further into consultancy with a special focus on process and organizational development.



Noel has joined the Invendor team in the summer of 2021. Since joining the team, he has been responsible for the due diligence of many companies, and has participated in an ERP implementation project, meanwhile pursuing education at Corvinus University of Budapest. He has taken special interest in start-ups and tax optimization and is planning to further his studies in the previously mentioned fields.



Szilvia has 15+ years of experience working at media companies.
Her excellent organizing skills made her successful in both operational and people management positions as well.
Szilvia managed a small team and was the executive assistant to the CEO at Telemedia, she was also an integral part of the production team at HBO Europe.
She brings her will-do attitude to the Invendor team assisting them in driving everyday tasks.


Economic Impact for Our Clients

From the most senior to our youngest staff members we are always curious to explore innovation in technology and business methodologies. We not only follow the leading schools of thought, but we explore and develop best practices of our own - the expertise of the team so diverse that we have reference in almost every industry in strategic and operational level as well. The combination of curiosity, passion for knowledge and constant learning with cross-industrial and cross disciplinary experience give us our competitive advantage - we are able to open new horizons to our clients and deliver disruptive answers to their challenges.

We love our clients and the feeling is mutual - as most of the companies we work for/with are long term relations and multiple diverse projects.

Social Impact

Over the years we have supported with our work (professional and volunteer) vast amount of initiatives, non-profits and companies. We ran a youth enrtepreurship education for 5 years with over 300 students and over 100 mentors.

Each year we select a beneficiary partner to support, latest in 2020 we have supported our colleagues’ foundation Africa Another Way

During COVID-19 we launched SME Survival Webinar series (linked), managed our partner network to secure mask production for the Maltese’s.

Environmental Impact

In our operational advisory work we are advocates of digitalisation, process optimisation and automation, which greatly reduces our clients environmental impact. We also work with cutting edge Smart Energy startups/scale-ups, with certified positive environmental footprint. We protect nature in our own operations with fully digital office and we love to spend our time in the great outdoors.


The team at Invendor took us through the process seamlessly and having the expertise on hand ensured that we asked the right questions at the right time. Whether you need to find investment, or simply need guidance through the minefield that is the investment process, I would highly recommend the team at InVendor.
János PereczesMKB Fintechlab
Invendor is an experienced, flexible and operative team. By mixing their experience on fields of finance, corporate innovation and startups, they are able to provide innovative solutions to any corporations.
Máté KovácsNanushka
It's been great working with Invendor - both on a professional and personal level.It was not just efficient but fun, re-engineering a fashion start-up's processes to be able to tackle a 10-fold growth in 2 years - and clearly, it happened. Their main strengths are holistic approach and prioritization, and they can do either short-cut solutions or detailed process control, each applied when necessary - always considering the resource need and costs.
László MadarászRotachrom
Invendor was a great partner for improving ourERP system by providing comprehensive support ranging from strategic level to operational details!