Our Company

home countries of our staff
years in the market
industry networks we belong to
Company Hero

The real estate industry is changing rapidly. At BuildingMinds, we prepare real estate managers for the trends and unexpected challenges of tomorrow. We empower businesses – by making them adaptable, resilient and agile.

Our team of more than 100 outstanding experts from diverse backgrounds use the power of data to create a more sustainable and profitable real estate industry. Our cooperative approach, interdisciplinary teamwork and flat hierarchy enable us to learn and innovate. BuildingMinds – real estate management services from professionals, for professionals.


Our vision is to transform real estate from a resource-consuming industry into a resource- generating industry.


We help create a digital brain that enables the owners and managers of real estate to drive the performance of their portfolios, both in terms of day-to-day operations and long-term strategy.

Our team

Our experts use the power of data to build a more sustainable real estate industry.
team Marek Sacha

Marek Sacha

Chief Executive Officer

In 2016, Marek Sacha was included by Forbes on its 30-under-30 list of the brightest young entrepreneurs, leaders and stars aged under 30.

A former consultant at McKinsey & Company, Marek boasts a strong entrepreneurial background and a profound knowledge of tech. He was previously CEO of online trading platform XOM Materials. He also co-founded and led award-winning UK digital healthcare platform Cera Care and top European online grocery retailer Rohlik Group.

team Marcel Steffen

Marcel Steffen

Chief Financial Officer

With a background in computing science and over a decade of experience at the Schindler Group, Marcel is a highly skilled finance and controlling executive who excels in providing financial leadership and strategic guidance, fostering profitable growth through efficient, digital, and scalable processes. Prior to joining Schindler, Marcel sharpened his expertise as an IT strategy consultant.

Marcel has an MSc in Business Informatics from the University of Zurich.

Hannah Stern

Hannah Stern

Chief Commercial Officer

Experienced in account management and customer relationship development with a background in retail and CRE. Hannah brings 10 years experience engaging and supporting multi-national customer accounts. She also focuses on analysis and utilization of market insights, ensuring relevance of product offerings partners and customers.

Hannah has an MBA from Columbia Business School.

Alexey portrait

Dr. Alexey Ershov​

Chief Technology & Product Officer

From particle physicist to senior tech executive with over 20 years of international experience in data & analytics, AI/ML, digital transformation, IoT, Smart Cities, and retail. Started at McKinsey, Vice President at IBM, Chief Analytics Officer at Lidl. Led international teams in sales, analytics, product development, and management consulting. Harvard Physics PhD.

Dr. Jens H.

Dr. Jens Hirsch

Chief Scientific Officer

Dr. Jens Hirsch is Chief Scientific Officer at BuildingMinds and is responsible for the development of integrated decarbonization and digitalization strategies for real estate portfolios. Before he joined BuildingMinds, Jens led the EU research project “CRREM Carbon Risk Real Estate Monitor” which translates the required emission targets of the Paris Agreement into concrete decarbonization pathways for real estate. He holds a Ph.D. from the IRE|BS in Regensburg. After that, he worked at the IIÖ Institute for Real Estate Economics as head of research and is a member of the DGNB Real Estate Advisory Board.

Duncan Binger

Dr. Duncan Binger

Chief Technology Officer

A former consultant at BearingPoint, Duncan is an experienced team leader and program manager. He is passionate about technology and how it can be leveraged to build innovative products. He has particular expertise in smart buildings, digital products and cloud platforms, and is responsible at BuildingMinds for development, DevOps, architecture and data science/AI.

Duncan has a PhD in Physics from the University of Bristol, UK.

Marina headshot

Marina Cirio

Chief of Staff

Marina is experienced in senior stakeholder management, structuring and executing business critical action plans, and strategy development. With a background in international relations and journalism, Marina has worked in UN Economic & Social Council organization and leading sustainability businesses, focusing in growth and inclusion. With strong analytical and problem-solving skills, she optimizes business processes and strategy implementation at BuildingMinds. 


Time flies – and with time, comes experience

BuildingMinds was founded in 2019 by Schindler Group, the Swiss multinational manufacturer of escalators, moving walkways and elevators, to meet the company's need for building data monitoring and management.

With EUR 150 million in funding from Schindler and technological support from Microsoft, we have since expanded to become a major international provider of software as a service (SaaS) for real estate managers, meeting their needs in the areas of reporting and ESG, portfolio management and digital building twins. Our portfolio of services is continuously growing.

We help create a digital brain that drives the performance of real estate portfolios, boosting efficiency, sustainability and long-term value.

Marek Sacha Circle
Marek Sacha
CEO, BuildingMinds

Join Us

Want to be part of our team?

Check out our current job offers or send us your résumé. We look forward to hearing from you.