Also known as: Unidos Player Agency
Founded: Not publicly disclosed
Headquarters: Warszawa, Poland (Zwycięzców 63, 03-937)
Players: 25+ (15+ 1st tier) – Total market value: €35mm
FIFA/FA registration: FIFA licensed agents. Poland (PZPN): Mariusz Piekarski appears on the PZPN “Lista Pośredników Transakcyjnych” for season 2022/23 (as of 31.03.2023)
Languages: Polish and English
Regions covered: Poland-focused, with client placements across Europe (e.g., Greece, Portugal, Cyprus, Türkiye)
Email: info@unidos.com.pl
Phone: +48 608 088 339
Instagram: https://www.instagram.com/unidosfootballagency/
Unidos is a Warsaw-based player agency that represents a compact but top-heavy portfolio in Poland, including Ekstraklasa regulars and emerging youth prospects. It is best known for domestic representation plus outbound moves to leagues like Greece and Portugal. The agency is owned by former Poland international Mariusz Piekarski and operates with a small team of licensed agents.
The agency that combines the expertise needed to maximize a player’s career development and to advise clubs professionally in the transfer market. From mapping out a career path to executing it effectively, UNIDOS provides full support for both young talents aiming high and established professionals seeking new challenges.
Mariusz Piekarski – CEO / Owner (Licensed agent)
Bio: Former Poland international midfielder who transitioned into player representation after his playing career; widely known in the Polish market as an agent/agency owner.
Contact: mariusz.piekarski@unidos.com.pl; +48 602-103-070
Damian Paziewski – Players’ Agent (Licensed agent)
Bio: Operates as part of the core agency staff.
Contact: damian.paziewski@unidos.com.pl; +48 608-088-339
Dominik Jarosz – Players’ Agent (associated)
Bio: Public professional profiles indicate prior affiliation with UNIDOS (players’ agent role).
Contact (provided / publicly listed): dominik.jarosz@unidos.com.pl; +48 513 111 852
Licensed agents:
Damian Paziewski
Mariusz Piekarski
Top player and talents:
Oskar Pietuszewski (Jagiellonia Bialystok) – 15.09.2008
Karol Świderski (Panathinaikos FC) – 23.01.1997
Miłosz Piekutowski (Jagiellonia Bialystok) – 07.02.2006
Bartłomiej Wdowik (Jagiellonia Bialystok) – 25.09.2000
Mateusz Wieteska (Kocaelispor) – 11.02.1997
Michael Ameyaw (Raków Częstochowa) – 16.09.2000
Szymon Weirauch (Lechia Gdańsk) – 05.03.2004
Karol Struski (Aris Limassol) – 01.01.2001
Sebastian Bergier (GKS Katowice) – 20.10.1998
Sebastian Kowalczyk (Śląsk Wrocław) – 05.03.1998
Jarosław Kubicki (Górnik Zabrze) – 07.08.1995
Konrad Michalak (Ohod Club) – 09.09.1997
Marcel Pieczek (GKS Katowice) – 11.06.2000
Tomasz Neugebauer (Widzew Łódź) – 24.06.2002
Miłosz Matysik (Aris Limassol) – 26.04.2004
Maciej Rosołek (Piast Gliwice) – 08.09.2001
Rafał Strączek (Stal Mielec) – 12.02.1999
Paweł Kwiatkowski (Stal Mielec) – 31.12.2006
Olivier Sukiennicki (Górnik Zabrze) – 25.05.2003
Jacek Góralski (Wieczysta Kraków) – 21.09.1992
Artur Jędrzejczyk (Legia Warszawa) – 04.11.1987
Maciej Rybus (Medialiga) – 19.08.1989
Ramil Mustafaev (Cracovia II) – 20.12.2003
Damian Wojdakowski (Unia Skierniewice) – 24.06.2005
Konrad Magnuszewski (Wigry Suwałki) – 03.01.2005
Szymon Grączewski (Chełmianka Chełm) – 23.02.2005
Maciej Jaroszewski (Świt Nowy Dwór Mazowiecki) – 15.08.2007
Jakub Gliwa (Legia Warsaw U19) – 14.04.2009
Dorian Sinkiewicz (Lechia Gdańsk) – 31.01.2009
Notable former clients
Public profiles of Mariusz Piekarski reference involvement in moves of players such as Roger Guerreiro and Edson in Poland (historical).
Coaches/Staff represented (if any): No verified coach roster found in sources reviewed.
2024 – Bartłomiej Wdowik: Jagiellonia Bialystok to SC Braga – permanent transfer – €1.6mm (contract length not disclosed in sources reviewed)
2022 – Mateusz Wieteska: Legia Warszawa to Clermont Foot – permanent transfer – €1.3mm (contract length not disclosed in sources reviewed)
2025 – Karol Świderski: Charlotte FC to Panathinaikos FC – permanent transfer – fee not publicly confirmed in captured Transfermarkt view; reported externally as ~US$2m (confirm fee only if publicly disclosed)
2026 – Oskar Pietuszewski: Jagiellonia Bialystok to FC Porto for around €10mm
Player representation and contract negotiation
Transfer strategy (domestic and outbound moves)
Career planning and squad placement support
Youth pathway management (notable number of U19/U17-aged clients in roster)
Strong ties to Polish clubs in the current roster footprint (e.g., Legia Warszawa, Jagiellonia Bialystok, Lechia Gdańsk, Górnik Zabrze, Stal Mielec, Raków)
International club touchpoints via current placements (e.g., Panathinaikos, SC Braga, Aris Limassol, Kocaelispor)
Note: There is no consolidated public “agency transfers per season” log found in sources reviewed; the figures below are a conservative minimum based on high-profile moves visible in the current-client footprint and captured transfer records/news.
Total transfers completed: At least 3 confirmed fee-reported/fee-discussed moves in publicly captured sources (see “Notable Deals”), plus additional free/undisclosed moves across the current roster.
Deals ≥ €10m: 1 (Oskar Pietuszewski)
Clients in top-5 leagues: 0 currently (based on current clubs shown on Transfermarkt roster snapshot).
National team clients: Multiple, including Poland senior internationals (e.g., Karol Świderski, Mateusz Wieteska) and youth/age-group representation.
Renewal/extension deals: Example visible in captured sources – Artur Jędrzejczyk contract extension date is shown on his Transfermarkt profile (extension noted 16/06/2025).
Unidos appears built around a lean, owner-led model: domestic control of key Polish clients, targeted export opportunities, and a parallel track for elite youth (including very young U19/U17 talents). The current roster mix suggests a focus on long-term development for prospects alongside steady career management for experienced Ekstraklasa and Poland-national-team veterans.
Public fee policy disclosures were not found in accessible official channels during this review (the agency website returned errors/timeouts during checks). In general, cross-border representation is expected to follow FIFA’s agent framework (FFAR) where applicable, including written representation agreements, defined service fees, and disclosure/record-keeping requirements; enforcement and practical application can vary by jurisdiction and competition rules.
Disciplinary actions / sanctions: No public disciplinary sanctions found in sources reviewed.
Litigation / disputes: No public litigation records found in sources reviewed.
Media sentiment: Neutral to positive – coverage around client moves is largely transactional.
No major industry awards/shortlists found in sources reviewed for Unidos or its agents.
The form has been successfully submitted.