Meet us

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 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 joined Warsaw Equity Group in 1999 and has served as CEO since 2015, driving the strategic growth of WEG’s portfolio. With over two decades of investment and finance experience, he built his expertise at WEG and through early consulting roles at Towarzystwo Doradztwa Inwestycyjnego.

He’s held operational roles in WEG’s portfolio companies, including WB Electronics and WEH Inwestycje, and as CFO of ZPC Otmuchów, where he played a key role in its IPO. This hands-on experience shapes his strategic decision-making.

In addition to leading WEG’s investment team, Krzysztof holds several supervisory roles across portfolio companies. His analytical approach is grounded in his degree in Applied Mathematics from Warsaw University of Technology.

Outside of work, Krzysztof enjoys popular science books, jogging, swimming, and weight training. His commitment to understanding the world through both numbers and narratives defines his leadership at WEG.

Dawid joined Warsaw Equity Group in May 2020 as Human Capital Partner, focused on elevating leadership and organizational potential. In 2023, he became Managing Partner for Value Creation.

With almost two decades of global HR experience, Dawid learned his biggest lessons at Fortune 500s like Bridgestone, Whirlpool, Electrolux, and Henkel—recruiting leaders, delivering M&A projects, and driving cultural change across the US, China, Italy, and Poland.

Despite his corporate background, launching three startups—a B2B recruitment marketplace, peanut butter brand, and EdTech app—taught him humility.

Passionate about coaching and human engineering, Dawid champions WEG’s mission of Growing Leaders & Organizations.

Outside of work, Dawid enjoys writing music, reading, trail running, off-road camping, and, for reasons even he can’t explain, calls himself an “HR Athlete.”

Mateusz joined Warsaw Equity Group in 2008 and currently co-manages the investment fund. He has played a key role in major transactions, including sell-side deals (Baltchem, Zmorph, Grupa Otmuchów, Clearcode, Piwik PRO) and buy-side investments (Xopero, Oxla, Nethansa, 3Soft, Occubee). He was also instrumental in the IPOs of Artifex Mundi and Vigo Photonics, and coordinated financing rounds for companies like Contec and Vigo Ventures.

With a Law degree from Nicolaus Copernicus University in Toruń and the Attorney-at-Law title, Mateusz brings legal expertise to WEG’s investment activities.

Outside of work, Mateusz enjoys tennis, reading fantasy, sci-fi, and non-fiction, and building LEGO creations with his son.

Tomasz joined Warsaw Equity Group in 2022, bringing experience from leading 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 a legal apprenticeship at the Warsaw Bar Association. He is currently an advocate in active practice.

Tomasz oversees daily legal services for WEG and its portfolio companies, focusing on corporate governance, contract drafting and negotiation, and representation before courts and public authorities.

Outside of work, Tomasz is passionate about architecture, varsavianistics, and psychology.

Patrycja joined Warsaw Equity Group in 2010 and has served as Chief Accountant since 2015. She graduated from the Faculty of Economic Sciences at the University of Warmia and Mazury in Olsztyn and completed postgraduate studies in Accounting and Corporate Finance at the Warsaw School of Economics.

Patrycja oversees accounting processes for the group’s holding companies and provides the management board with up-to-date financial insights.

Outside of work, Patrycja enjoys music, spending time in the mountains, and working with numbers.

Monika joined Warsaw Equity Group in 2014 and works in the finance and accounting department, advising on transfer pricing. She graduated from the Faculty of Management at Warsaw University of Technology and Finance and Accounting at the Warsaw School of Economics, with additional postgraduate studies in Transfer Pricing and Tax Management.

Monika is responsible for accounting for the group’s holding companies, preparing financial statements and management reports, and managing transfer pricing policy—including setting intra-group transaction prices, benchmarking, and tax documentation.

Outside of work, Monika enjoys swimming, hiking, and traveling.

Jan joined Warsaw Equity Group in 2019 and has played a key role in numerous transactions, including sell-side deals (Grupa Otmuchów, Clearcode, Piwik PRO) and buy-side investments (Xopero, Oxla, Nethansa, 3Soft, Occubee). Before WEG, he gained M&A advisory experience at CAG and mInvestment Banking.

He holds a Bachelor’s in Quantitative Methods and a Master’s from the Warsaw School of Economics, spent a semester at the National University of Singapore, and has passed all three CFA levels. Jan is passionate about finding high-growth software companies with strong unit economics and scalable models.

Outside of work, Jan is an endurance sports enthusiast—he’s most at home trail running, freeriding & ski touring, cycling (a lot!), and mountain trekking with a tent.

Jan joined WEG in 2021 after gaining experience at Simon-Kucher & Partners and Citibank. He’s an honors graduate of Rotterdam School of Management (Business Information Management) and also holds a degree in Global Business, Finance, and Governance from the Warsaw School of Economics.

Jan is passionate about SaaS, AI, and cybersecurity, and gets genuinely excited by companies aiming to transform their industries. He serves as a Supervisory Board member at Occubee.

Outside of work, Jan loves traveling (most recently through Southeast Asia), learning tennis (still far from Iga Świątek’s level!), and exploring Warsaw’s food scene—always on the hunt for pizza as good as in Naples and Pad Thai to rival Bangkok.

Kuba joined Warsaw Equity Group in January 2023, bringing over five years of experience in finance and capital investments from KPMG, Pekao S.A., and JP Weber. He’s a graduate of SGH Warsaw School of Economics and has passed all three levels of the CFA exam.

Kuba is especially passionate about climate tech ventures and loves supporting founders working on solutions to fight climate change. He’s particularly excited by hardware businesses and the engineering behind them, serving as a supervisory board member at Artifex Mundi.

Outside of work, Kuba enjoys dropping philosophical bombshells (firmly convinced free will is an illusion), dancing at silent discos, lifting weights, and cheering for Real Madrid—because even if life is predetermined, it’s still worth enjoying the ride!

Karolina joined Warsaw Equity Group in 2024 to strengthen the WEG Community and develop the CEE Growth Platform. Previously, she gained hands-on experience at Demium Capital and ff Venture Capital, working on investment processes and supporting portfolio companies.

She holds an MBA from the Warsaw School of Economics and is a guest lecturer at both SGH and Kozminski University. Karolina also serves as Director for Founder Institute Poland and Chief Ecosystem Officer at Zenith AI, earning recognition as one of Poland’s leading women in VC and startups.

Outside of work, Karolina loves car racing, discovering new-wave natural wines, and championing women in tech.

Kamil joined Warsaw Equity Group in May 2025, bringing a strong background in social entrepreneurship. As President of Our Future Foundation—one of CEE’s leading educational NGOs—he helped over 300 students reach top universities like Harvard, Oxford, and LSE, and engaged 20,000+ young people in programs with partners such as Amazon, Samsung, GE, and Goldman Sachs.

He previously gained experience at BEST Capital Group and led a boutique consultancy focused on PR, strategy, and event management. Kamil holds a B.A. in Economics and International Markets from Koźmiński University and studied at MCI The Entrepreneurial School in Innsbruck.

Outside of work, Kamil enjoys reading scientific books, moving pieces across the chessboard, and sweating through triathlon training—hoping one day to become an Ironman.

Seweryn joined Warsaw Equity Group in September 2025. Prior to joining WEG, he gained experience in investment banking across Poland and Germany, working with leading advisory firms including Rothschild & Co, CASE Cassiopea, Bastion Group, and Capital One Advisers. He also worked in the Valuation Advisory team at Kroll.

Seweryn is studying Economics and Business Administration at Goethe University in Frankfurt am Main.

He is particularly passionate about SaaS and Industry 4.0 solutions, with a keen interest in supporting innovative companies driving digital transformation and operational efficiency.

Karolina has over a decade of experience in office management, including leadership roles in both the education and legal sectors. Before joining WEG, she served as Head of Administration at JWP Patent & Trademark Attorneys and as Office Manager at Creodidasko. She is a graduate of postgraduate studies in Education Management at the University of Warsaw.

At WEG, Karolina is responsible for overseeing office operations, coordinating administrative tasks, and managing the secretariat to ensure smooth day-to-day functioning.

Outside of work, Karolina is a food and review blogger at ‘Na Ostrzu Języka’, a traveler, and a Licensed Tour Guide.

Sebastian joined Warsaw Equity Group in 2009. He holds a degree in Business Management from the Warsaw School of Management and a Real Estate Management degree from the Warsaw University of Life Sciences.

Sebastian plays a key role in managing WEG’s logistical and administrative operations, supporting the founders, overseeing the car fleet, coordinating third-party services and real estate, and handling day-to-day office management.

Outside of work, Sebastian is passionate about MTB biking, fishing, skiing, cooking, investing, and anything related to cars.