SeiSei Football
Boutique Football Management
Netherlands €28mm
Key Facts
Also known as: SeiSei MGMT – SeiSei
Founded: 2007
Headquarters: Weena 723, 3013 AM Rotterdam, Netherlands
Players: 10+ (6 1st tier) – €28mm
FIFA/FA registration: FIFA football agent licence required in the Netherlands (KNVB jurisdiction); individual licence IDs not publicly listed by the agency
Languages: English, Dutch
Regions covered: Europe (NL, BE, UK, DK, AT, ES via client clubs)
Email: orlando@seiseimgmt.com
Phone: +31 (0)10 303 0299
LinkedIn: https://www.linkedin.com/company/seisei
About
SeiSei is a Rotterdam-based boutique talent management company, founded by Karim Erja, that also operates a dedicated football representation unit under “SeiSei Football”. The group positions itself around career management, brand development and network expansion, with a selective roster and a client-centric, boutique approach. In football, their current client group is small but includes multiple Eredivisie-level players.
Key People
CEO/Founder: Karim Erja – Founding Partner. Built a creative/events background (started in 1998) and founded SeiSei in 2007 to build international brands; involved in the broader sports and entertainment strategy.
Contact: Office phone +31 (0)10 303 0299
LinkedIn: https://www.linkedin.com/in/karimerja/
Managing Director / Partner: Orlando Engelaar – Partner Football. Former professional footballer who transitioned into talent management and football representation as a company partner.
Contact: orlando@seiseimgmt.com; Office phone +31 (0)10 303 0299
Instagram: https://www.instagram.com/orlandoengelaar8/
LinkedIn: https://www.linkedin.com/in/orlando-engelaar-75724a1b9/
Licensed agents:
Edward Burleson – Partner Football. Ex-player turned agent; described as having 25 years of experience facilitating transfers, with a network-driven, transparent approach.
Licence IDs: not publicly listed
Client Roster
Top players and talents (current)
Gjivai Zechiël (FC Utrecht) – 01.06.2004
Thomas Beelen (Feyenoord) – 11.06.2001
Million Manhoef (Stoke City) – 03.01.2002
Myron van Brederode (KV Mechelen) – 06.07.2003
Thomas van den Belt (FC Twente) – 18.06.2001
Djenahro Nunumete (FC Emmen) – 28.01.2002
Sven Zitman (Without club) – 24.02.2002
Björn Hardley (TSV Hartberg) – 19.12.2002
Yoram van der Veen (SC Cambuur) – 30.06.2005
Sem Yvel (Vitesse U21) – 10.04.2005
Maxime Soulas (Sönderjyske) – 19.05.1999
Notable former clients
No notable former football clients publicly confirmed from the sources reviewed.
Coaches/Staff represented (if any)
No public information found.
Notable Deals
2025 – Gjivai Zechiël: Feyenoord – FC Utrecht, loan, contract at Utrecht to 30.06.2026
2025 – Thomas van den Belt: Feyenoord – FC Twente, transfer, contract to 30.06.2029 (four-year deal)
2025 – Myron van Brederode: to KV Mechelen, transfer, contract to 30.06.2029
2024 – Million Manhoef: to Stoke City, transfer, contract to 30.06.2027
2024 – Thomas Beelen: Feyenoord, contract extension, contract to 30.06.2028
2024 – Björn Hardley: to TSV Hartberg, transfer, contract to 30.06.2026
Services
Player representation and career management
Contract negotiation and transfer/loan management
Brand development, positioning and network expansion
Lifestyle support and personalized boutique management model
Partner Network
Club-facing network shaped by former-player and long-tenured agent experience, plus Rotterdam-based operations and European club touchpoints via current client clubs.
Track Record (last 3 seasons)
Total transfers completed: At least 5–8 notable roster moves/contract events publicly visible across 2023–2025 (including a 2025 loan, multiple 2025 transfers, a 2024 transfer, a 2024 extension, and a 2024 international move)
Deals ≥ €10m: None publicly evidenced from the current client list
Clients in top-5 leagues: 0
National team clients: Million Manhoef (Netherlands U21), Sem Yvel (Indonesia U20)
Renewal/extension deals: Thomas Beelen (extension recorded in 2024)
Approach & Philosophy
SeiSei positions itself as a boutique talent manager built around personalized attention, relationship depth, and flexible, client-first support. In football, the pitch-to-boardroom leadership mix underpins a network-led approach to placements, negotiation and long-term development.
Fees & Transparency
No agency-specific commission policy is publicly posted. Under FIFA’s agent framework, published fee caps reference 5% and 3% thresholds depending on remuneration levels and 10% and 6% in permitted dual-representation contexts.
Compliance & Reputation
Disciplinary actions / sanctions: No public sanctions found in the sources reviewed.
Litigation / disputes: No public, agency-specific disputes identified in the sources reviewed.
Media sentiment: Neutral to positive – positioning focuses on boutique management and player development, with regular roster and player-move announcements.
Awards/recognition
No specific awards or formal industry recognitions publicly listed by the agency.
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