Who We Are

Olivier Jarosz, New York Yankee Stadium ©

Club Affairs is a swiss independent advisory group focused on football strategies

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…

Siri Wallenius, 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 organisation based in Geneva, Switzerland, 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
  • Youth Academy Performance Management
  • Women’s Club Football Optimisation

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.

The Club Affairs team works with 7 affiliates located in Zürich, London, Paris, Saint Petersburg, Warsaw, Stockholm and San Francisco.


Club Affairs is a transversal advisory group able to provide your club both with a helicopter view and a forensic analysis of your daily activities. The glocal outlook enables a fresh perspective on football activities that are typically perceived as standardised.

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.

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 and previously, she has lived in Brazil, France, Austria and Portugal. She is currently based in Lausanne.

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

Some thoughts on Covid-19

The maps represents a comparison of how different European to leagues across Europe will be affected in respect of an aggregated reduction of revenue calculated per month based on a scenario. All it gives is the comparison between how different revenue mixes in different countries react to the same set of circumstances. The aim of this research is purely informative and Club Affairs cannot be held responsible for any errors or omissions. Club Affairs shall not be held liable for any damages or losses arising from the use of any material contained in this work, or from any resulting action or decision

The Latest Club Affairs Thoughts

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