Warsaw Equity Group

Meet the  WEG Team

16 WEG team members

We believe in what we do. Ambitious projects and goals give us wings. We look toward the future with optimism and remember that work is only part of life!

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Jacek Giedrojć


Jacek Giedrojć has been involved in investment activities in Poland since 1992. At the begining he was focused on privatisations and management buyouts. After 1999, he was involved, among other things, in the restructuring of the portfolio of difficult assets acquired from Elektrim S.A. and in investments in early stage technology companies. He served as CEO of the Group until 2005.

Currently he remains involved in the development of the Group and management of its portfolio, overseeing investment processes, as well as reviewing and approving all of the projects. Prior to founding WEG he gained experience working as an auditor, consultant and in public administration services in Canada, New Zealand and the UK.

Jacek holds a PhD in Sociology from the Polish Academy of Sciences, an MBA from Harvard Business School and a BA in Economics from Victoria University of Wellington, New Zealand.

Witold Grzesiak


Witold Grzesiak returned to Poland in 1993. In the years 1993-1999 he specialized in corporate finance advisory and successfully conducted a number of transactions on behalf of Polish and international corporations, including: International Paper (ZPC Kwidzyn), Unilever (Pollena Bydgoszcz), ABB (ZWUS Katowice), Gdynia Shipyard and Eltra Bydgoszcz. He also conducted an investment in the Hydrocentrum company and its subsequent restructuring.

Witold Grzesiak was also one of the founders and executive directors of Warsaw Equity Holding company, established to restructure the portfolio of companies owned by Elektrim SA. From 1999 to 2006 he was actively involved in the development of WEG’s investment portfolio.

Currently he remains involved in the development of the Group and management of its portfolio, overseeing investment processes, as well as reviewing and approving all of the projects. Prior to founding WEG he gained experience working as a director at Coopers & Lybrand in New Zealand.

Witold Grzesiak graduated from Massey University in New Zealand, he also completed the MBA program at the Wharton Business School in the United States.


Krzysztof Dziewicki

chairman of the board

Krzysztof joined WEG in 1999 and has served as the group's CEO since 2015. Early in his career, Krzysztof gained experience at two consulting firms: TDI and Egmont Consulting. He also actively participated in the operational activities of WEG's portfolio companies, including serving as the CFO of ZPC Otmuchów during 1999-2001 and 2007-2011 and leading to its IPO on the Warsaw Stock Exchange. Recently, Krzysztof has also been acting as Vice President of the Management Board of Polskie Konsorcjum Gospodarcze S.A. and Member of the Supervisory Board of Baltchem Zakłady Chemiczne S.A.

Krzysztof graduated from the Warsaw University of Technology with a degree in Applied Mathematics.

Krzysztof’s day-to-day: Krzysztof manages Group financials, participates in defining WEG strategy, and evaluates new investment projects. Using his over twenty years of experience in the investment industry, Krzysztof also supports portfolio companies in defining and implementing their strategy.

His passions: popular science literature, jogging.

Dawid Bieńkowski

Human Capital Partner

Dawid joined WEG in 2020. He gathered his experience performing global HR roles for brands such as Bridgestone, Whirlpool, Faurecia, Electrolux.

He is a graduate of the Faculty of Management at the Silesian University of Technology and holds an MBA from the National Louis University. He is a graduate of the Erickson Coaching School.

Dawid’s day-to-day: with his experience Dawid actively supports portfolio companies in the process of managing their human capital and organizational culture. He also supports portfolio companies' leaders in their personal development. Additionally, Dawid oversees WEG's communication and brand image building in social media.

His passions: music production, popularization of personal development topics, traveling.

Tessa McIver

Community Manager

Tessa joined WEG in 2023. She gained her experience at international professional services organisations in the areas of Key Account Management, Business Development, Project Management and Event Management and in the last years became heavily involved in the startup ecosystem, with a particular focus on the CEE region. She is a regular panelist, judge and MC at industry events.

Tessa is a graduate of the University of Bristol and the Jagiellonian University in Kraków, and also holds an Executive MBA from the Warsaw University of Technology Business School.

Tessa's day to day: Tessa provides additional growth support mechanisms for portfolio companies, particularly by matching them with top industry experts and mentors. She facilitates the creation of content, high value events and communication.

Her passions: cooking, discovering new places and cultures, learning about new innovations.

Mateusz Czajkowski

legal partner

Mateusz joined WEG in 2008. His main focus is managing the legal workstreams in WEG's investment projects and advising WEG's portfolio companies on key legal matters.

Mateusz graduated with a Law degree from the Nicolaus Copernicus University in Toruń and hold the Attorney-at-Law title.

Mateusz's day-to-day: using his vast VC, PE, and legal experience, Mateusz manages due diligence processes, drafts investment documentations, conducts various legal analyses, and prepares legal structures.

His passions: biking, trekking, fantasy and non-fiction books.

Tomasz Bajarbaatar


Tomasz joined WEG in 2022. Prior to joining WEG, he gained experience in reputable law firms, courts and diplomatic missions.

He graduated from the Faculty of Law at SWPS University in Warsaw, completed the European Academy of Diplomacy, and completed a legal apprenticeship at the Warsaw Bar Association. He is currently an advocate actively practicing his profession.

On a day-to-day basis: Tomasz is responsible for the daily legal services of WEG and its portfolio companies, in particular for corporate governance, drafting and negotiating contracts and representation before courts and public administration bodies.

His passions: architecture, varsavianistics, and psychology.

Patrycja Żuk‑Soło­wińska

Chief Accountant

Patrycja joined WEG in 2010. Since 2015, she has been the WEG's Chief Accountant.

She graduated from the Faculty of Economic Sciences at the University of Warmia and Mazury in Olsztyn. She has also completed postgraduate studies in Accounting and Corporate Finance at the Warsaw School of Economics.

Patrycja’s day-to-day: Patrycja is responsible for accounting processes in the group's holding companies and supports the management board by providing up-to-date information on WEG's financial situation.

Her passions: music, mountains, and numbers.

Monika Sarnicka

Transfer Pricing Expert, Deputy Chief Accountant

Monika joined WEG in 2014. She works in the finance and accounting department and advises WEG in the area of transfer pricing.

Monika is a graduate of the Faculty of Management at the Warsaw University of Technology and of Finance and Accounting at the Warsaw School of Economics. She also completed postgraduate studies in Transfer Pricing and Tax Management at the Warsaw School of Economics.

Monika’s day-to-day: Monika is responsible for the accounting of group’s holding companies, the preparation of financial statements, and reports for the WEG management board. In addition, she manages transfer pricing policy, determines transaction prices in intra-group agreements, prepares benchmarking analyses, and tax documentation.

Her passions: swimming, hiking and traveling.

Jan Nalbert

Investment Manager

Jan joined WEG in 2019. From 2017 to 2019, he gained experience in M&A from his work at CAG.

Jan is a graduate of the Warsaw School of Economics. During his studies he also spent a semester in Singapore at the National University of Singapore. He has passed three stages of the Chartered Financial Analyst (CFA) exam organized by the CFA Institute.

Jan's day-to-day: Jan provides support to RealCo, Nethansa and Piwik PRO, and is responsible for preparing investment recommendations, conducting business analysis and expanding WEG's portfolio through new investments.

His passions: trail running, skitouring, freeriding.

Arvin Khanchan­dani

Investment Manager

Arvin joined WEG in early 2021. Prior to that, he gained experience as an in-house specialist in M&A and Strategy at London-listed companies SIG plc and Johnson Matthey.

Arvin holds a Master's degree in Political Studies from the London School of Economics (LSE). He is a Chartered Financial Analyst (CFA) charterholder.

Arvin's day-to-day: Arvin is leading the sustainability investing arm at WEG, and is actively looking for new investment targets that could enhance WEG's portfolio. He also supports Contec in the implementation of their strategy, focusing on value-creation activities.

His passions: philosophy, science fiction, football, tennis

Jan Szumada

Investment Associate

Jan joined WEG in 2021. Prior to that, he gained experience at Simon-Kucher & Partners, and Citibank.

Jan is a graduate of the Rotterdam School of Management with a degree in Business Information Management. He also holds a degree in Global Business, Finance, and Governance from the Warsaw School of Economics.

Jan's day-to-day: Jan prepares valuations, financial models, and business analyses. He is also responsible for identifying and evaluating new investment opportunities and supporting portfolio companies (Vigo Photonics, Baltchem, and Vigo Ventures).

His passions: traveling, skiing, popular science literature.

Jakub Głowaczewski

Investment Associate

Kuba joined WEG in 2023. He gathered his experience in the transaction departments of Bank Pekao S.A., KPMG and JP Weber.

He graduated from the Warsaw School of Economics with a degree in Finance and Accounting, during his studies he spent a semester in France studying at Audencia Business School. He has passed the three stages of the Chartered Financial Analyst (CFA) exam organised by the CFA Institute.

Kuba’s day-to-day: Kuba prepares valuations, financial models, and business analyses. He is also responsible for identifying and evaluating new investment opportunities and supporting portfolio companies.

His passions: cooking, football, gym, philosophy.

Marta Szymańska


Marta joined WEG in 2017.

Marta Szymańska is a graduate of the Cardinal Stefan Wyszyński University at the Faculty of Law and Administration.

Marta's day-to-day: Marta manages WEG's administrative processes, including office management, record-keeping, and providing support to the WEG's management team and other departments.

Her passions: traveling, fashion, historical and war novels.

Marta Łyda

Office Assistant

Marta joined WEG in 2023. Her responsibilities include supporting the management of the company's administrative processes and the logistical coordination of events.

Before joining WEG, she provided administrative support for the Polish branch of Point S. She was responsible for document verification, coordinating communication with shareholders and the head office in France, and managing social media.

She holds a Bachelor's in Spatial Management from the University of Warsaw. She studies management at the Academy of Economics and Humanities in Warsaw.

Sebastian Dudek

Office Support

Sebastian joined WEG in 2009.

He is a Business Management graduate at the Warsaw School of Management, and holds a Real Estate Management degree at the Warsaw University of Life Sciences.

Sebastian's day-to-day: Sebastian supports WEG in managing the logistical and administrative processes that ensure the efficient running of our business. He provides ongoing support to the WEG founders, manages WEG's car fleet, third party services, and real estate. Additionally, Sebastian in involved in the day-to-day WEG's office management.

His passions: MTB biking, fishing, skiing, cooking, investing and all things cars.