Who We Are

Club Affairs is an advisory independent organisation, dedicated to providing tailor-made services to football clubs and leagues. 

Based in Geneva, we understand better than most, the unique challenges of Club and League management and provide practical, collaborative services to support professional football organisations.

Professionals with 10+ years of experience in the world of football, having visited 200+ football clubs across the world, we are able to provide bespoke analyses in English, French, Russian, Portuguese, Spanish, Swedish, Polish context and beyond…

Olivier Jarosz, New York Yankee Stadium ©
Siri Wallenius, Managing Partner, Turin Allianz Stadium ©

Our Services

Having gained more than 10 years experience at the Heart of Football, being in charge of the Membership & Knowledge unit at the European Club Association, we have built a set of services for clubs across Europe to boost performances off the pitch, directly impacting on-pitch results. Backed by numerous publications, analyses and workshops, our extensive knowledge is transversal and applicable at any level of the professional football pyramid.

Working as an advisory independent organisation based in Geneva, Switzerland, we are fuelled by the LTT Sports Think Tank that provide concrete & impactful actions to the sports organisations. We have already established a number of collaborative projects and are able to provide tailor-made services to your club or organisation.

  • 360° Club Review, Assessment & Growth Strategy
  • Business and Governance Eco-system Analysis
  • Women’s Club Optimisation
  • Bespoke knowledge creators and organisers #ECACMP

Based on its extensive experience, as a deliverable we are able to offer tailor-made Development Seminars both online or onsite from content to execution with access to the best experts in sports.

We have an unrivalled experience among the sports consultancy world in developing strategies, improve governance and find viable frameworks for competitive sports. For instance, this was evidenced by our role in the UEFA Women’s Champions League competition review and format reform, the initial proposal of the current UEFA Youth League and through the creation and development of the ECA membership relations covering 55 National Associations.

What do We Do More

Contact Us

Contact us for more information about our services and how they can help further develop your structure: contact@clubaffairs.ch

Club Affairs Sàrl
10 Rue Chantepoulet
CH-1201 Genève, Suisse

More About Us

Olivier Jarosz ⧉

Managing Partner

Olivier is a leading practitioner in football club strategies for mid-sized markets. Specialising in club football insights, he has an extensive expertise of club strategies, youth academy assessment and women’s club football optimisation across a range of club activities including sports, business and community activities, as well as club operations.

Prior to joining Club Affairs, he was in charge of the R&D efforts at the European Club Association (ECA) for over 10 years, masterminding several innovative and industry-leading publications related to Club Management, Youth Academies and Women’s Club Analysis.

Co-author of the pioneering Club Management Guide, that aims to define all the structural components of a football club from a forensic perspective, Olivier also created a successful knowledge-sharing platform, the ECA Club Management Programme, the first ever tailor-made executive programme covering professional football club needs for the top management of clubs.

For several years, Olivier was in charge of developing the men’s and women’s club membership activities within ECA resulting in the creation of Working Groups, Committees, Task Forces with positive track records, and publishing the Youth Report on Academies (2012), Youth Study (2018), Women’s Football Analysis (2015) and Women’s Study (2019) covering club strategies and structures. One of the key achievements in the women’s game was to conduct the competition reform of the UEFA Women’s Champions League, coordinating the voice of clubs and supporting stakeholders in developing a new updated format and access list together with a new calendar and commercial package.

Currently MBA lecturer and visiting scholar.

Olivier is a native French speaker currently based in Nyon and over the past years, he has lived in Canada, Poland, Russia, USA and Lebanon.

Wharton Aresty Scholar & Université de Genève Graduate

Siri Wallenius ⧉

Managing Partner & Founder

Siri is a project management specialist and serves as Managing Partner at Club Affairs. She draws on her extensive club football experience to manage clubs’ responses to disruptive forces reshaping the football industry. She is a strong believer in an egalitarian and balanced football industry.

Siri is managing concurrent assignments through all project phases from conception through completion and review, as well as supporting various topics related to Club Affairs and to European & Global football in general. She has a background in international diplomacy and wide experience in areas such as press relations, social media, ESG standards projects, event management, media operations and administration.

After a spell at the Embassy of Sweden in Lisbon and several event-focused experiences at the International Olympic Committee and UEFA, Siri joined the European Club Association (ECA) where she was the main contact for Nordic and Baltic club representatives. As a Project Manager of several key projects including the ECA Club Management Programme, Sustainability, Corporate Social Responsibility and Women’s Football, she has built up a wide portfolio of knowledge particularly in the evaluation and development of the intangible components that make football clubs successful communities.

Whilst being a communication and event coordinator at the Gotland Art Week, Social Media assistant at the European College of Sport Science and Media Assistant at the Swedish Football Association, Siri has developed an extensive knowledge in communication techniques and collected cutting-edge insights of changes influencing different industries and environments.

Siri is a native Swedish speaker currently based in Lausanne and previously, she has lived in Brazil, France, Austria and Portugal.

Stockholm University & Académie International des Sciences et Techniques du Sport (AISTS) Graduate

Pioneers in club football executive programmes

We are the Strategic Content driver of the #ECACMP and we developed the world’s first bespoke executive education dedicated to professional club football. We are pioneers in the field of club football executive education. We deliver tailor-made club-focused content with a genuine spirit from content to execution with access to the best experts in sports. Backed by over 10 publications, 20 analyses and 30 workshops, such as the Club Management Guide, our extensive knowledge is transversal and applicable at any level of the professional football pyramid.

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