By and For Sport Management
France–Spain Bridge
. Spain
€28mm

Key Facts

Also known as: By & For
Founded: 2019 (agency created in Barcelona by Maud Griezmann)
Headquarters: Barcelona / Madrid / Paris (multi-city hub)
Players: 14 (1st tier: 3) – Total market value: approx. €28mm
FIFA/FA registration: FIFA-licensed agents on staff; FFF-licensed agent registered as BY AND FOR FRANCE (Nicolas Falaschi)
Languages: French, Spanish, English
Regions covered: Spain, France, wider EU and select MENA placements
Email: Not publicly listed (contact via website form)
Instagram: https://www.instagram.com/byandfor
Facebook: https://www.facebook.com/byandforsportmanagement
X: https://x.com/byandfor

About

By & For Sport Management is a boutique Franco–Spanish agency built around the career of world champion Antoine Griezmann and later professionalised into a full multi-sport representation company.

Operating from Barcelona, Madrid and Paris, the firm focuses on high-potential talents in France and Spain and cross-border moves between LaLiga, Ligue 1, Serie A and emerging markets. While football is the core, the group also represents Olympic judoka Daria Bilodid through its wider sports arm, underlining a broader elite-athlete focus. Bespoke career planning, family-style support and long-term relationships are central to its positioning.

Key People

Client Roster

Top players and talents (current):

  • Antoine Griezmann (Atlético de Madrid)

  • Jon Mikel Aramburu (Real Sociedad)

  • Javier Boñar Atlético de Madrid)

  • Aarón Martín (Genoa CFC)

  • Unai Hernández (Al-Shabab FC)

  • Axel Guéguin (Montpellier HSC)

  • Manex Lozano (CD Basconia)

  • Corentin Issanchou (Rodez AF)

  • Andrés García (UD Poblense)

  • Donovan Basset (SC Bastia)

  • Rayan Hassad (Olympique de Marseille)

  • Jules Bery (AS Monaco)

  • Cléo Mélières (FC Metz)

  • Toni Fernández (FC Barcelona)

  • Léo Bamballi (Juventus Primavera)

Notable former or non-football clients:

  • Daria Bilodid (Judo – Ukraine) – Olympic bronze medallist whose commercial career is handled by the By & For structure.

Coaches / staff represented:

  • Eder Sarabia (Elche CF – Head Coach)

Notable Deals

  • 2025 – Antoine Griezmann (Atlético de Madrid)
    Contract extension negotiated to keep the France legend at Atlético through the latter stages of his career, amid external interest and speculation.

  • 2025 – Jon Mikel Aramburu (Real Sociedad)
    Renewal with Real Sociedad securing a long-term deal after his breakthrough appearances in LaLiga, consolidating his role in the Basque club’s future plans.

  • 2024–2025 – Toni Fernández (FC Barcelona)
    Multi-year extension with Barça until 2027 (plus option years), confirming one of La Masia’s most-hyped attacking talents under the guidance of By & For.

  • 2023 – Aarón Martín (FSV Mainz 05 → Genoa CFC)
    Free transfer to Genoa, engineered to relaunch the left-back’s career in Serie A with a multi-season contract.

  • 2023–2024 – Axel Guéguin (Montpellier HSC)
    Professional promotion and integration into Montpellier’s first-team environment, highlighting By & For’s pathway work from academy to senior football.

  • 2023–2024 – Eder Sarabia (Elche CF)
    Head coach appointment and subsequent renewal after progress with Elche, illustrating the agency’s reach into high-level staff representation.

  • 2023–2024 – Daria Bilodid (Judo)
    Elite sponsorship and commercial representation around Olympic campaigns through the agency’s multi-sport network.

Services

  • Contract negotiation and renewals (players and coaches)

  • Domestic and international transfers and loans between France, Spain, Italy and emerging markets

  • Image rights structuring and commercial endorsements

  • Sponsorships, brand partnerships and media activations

  • PR, branding and content production via By & For Studios

  • Legal and tax coordination with specialist partner law firms

  • Relocation support for players and families (housing, schooling, logistics)

  • Performance monitoring and basic data/analytics support

  • Wellbeing, mental support and injury management coordination

  • Long-term career and post-career planning for elite and youth athletes

Partner Network

  • Clubs with strong working ties through clients and recent deals include:

    • Atlético de Madrid

    • Real Sociedad

    • FC Barcelona and Barça academy

    • Olympique de Marseille

    • AS Monaco

    • Montpellier HSC

    • FC Metz

    • SC Bastia

    • Genoa CFC

    • Elche CF

  • External partners:

    • Specialist football and commercial lawyers in Spain and France

    • Performance coaches, physios and medical experts used across client cases

    • Media and creative partners via By & For Studios and By & For Creatives

Track Record (last 3 seasons)

  • Total transfers / professional agreements completed:

    • 10+ publicly documented across LaLiga, Ligue 1, Serie A and lower divisions since 2022–23.

  • Deals ≥ €10m:

    • At least one major contract or renewal at elite level, with fees and commissions largely undisclosed.

  • Clients in top-5 leagues:

    • 3–5 current players in LaLiga, Serie A and Ligue 1 first teams (including Griezmann, Aramburu, Aarón Martín and Guéguin).

  • National team clients:

    • 1+ senior national team players (Antoine Griezmann – France) plus youth internationals in French and Spanish setups.

  • Renewal / extension deals:

    • Multiple key renewals for cornerstone clients such as Griezmann, Aramburu and Toni Fernández in the 2023–2025 period.

Approach & Philosophy

By & For positions itself as a family-style, relationship-driven agency that prioritises stability and long-term growth over short-term moves. The focus is on carefully chosen environments for young Franco–Spanish talents, using a deep understanding of La Masia, French academies and Spain’s club ecosystem to map the right sporting steps.

Analytics and data are used in a pragmatic way – primarily to benchmark performance, identify role fit and understand market opportunities – while negotiations lean on trust, discretion and a strong network in Spain and France. The aim is to ensure that each move aligns with both sporting ambition and off-pitch development, including media footprint and commercial potential.

Fees & Transparency

By & For does not publicly disclose exact commission percentages, but operates within the frameworks set by the FIFA Football Agent Regulations and domestic FA rules. In practice, standard market ranges apply (often around 3–10 % of gross salary or transfer-related remuneration, depending on mandate structure), with dual representation only used with clear, written consent when permitted. Image rights and sponsorship income are typically isolated in separate structures, with the agency remunerated on a case-by-case basis per campaign.

Compliance & Reputation

  • Disciplinary actions / sanctions:

    • No disciplinary sanctions or major regulatory actions against By & For or its lead agents are publicly recorded at the time of writing.

  • Litigation / disputes:

    • No high-profile court cases or disputes involving the agency have surfaced in mainstream media searches.

  • Media sentiment:

    • Overall neutral-to-positive, largely focused on the “family agency” narrative around Maud and Antoine Griezmann and the growth of their talent stable in France and Spain.

Awards / Recognition

  • Recognised in French and Spanish media as a notable example of a family-led agency successfully transitioning into a professional structure around an elite international player.

  • Increasing visibility through coverage of its role in La Masia talents such as Toni Fernández and Ligue 1 / LaLiga prospects included in business-of-football outlets.

By and For Sport Management logo

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