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Connecting Brands, Fans & Sport. Roemer Posthumus, Sports Partnerships & Business Development, sports marketing and sports sponsorship

Roemer Posthumus

Roemer Posthumus

Sports Partnerships & Business Development | Connecting Brands, Fans & Sport

Hi, I am Roemer Posthumus, 22 years old and a Sports Economics student at Fontys in Tilburg. I build commercial partnerships in sport and turn ideas into projects that really deliver, such as UP Plan and the sponsor collective Made in Tilburg.

What drives me in sports business? Discovering opportunities, connecting people and developing ideas into something that really works in practice. To create commercial growth, I prefer to combine data, experience and sport.

UP Plan is a planning app that creates schedules automatically and takes work off entrepreneurs’ hands. Made in Tilburg brings local talent and Tilburg’s business community together. That is how I turn the opportunities I see into projects in practice.

Curious about my projects, or can we do something for each other? Feel free to get in touch. I like to think along and I am always happy to talk further.

Worked on

How I add value

Value is not created by one party, but by connecting things in the right way: sport as the stage, fans as the audience, community as the link, data as the proof and brands as the partner. Then the fan gets a better experience, the brand a measurable result and the club a stronger partnership. Click a topic to see what each one adds.

Select a topic above.

For the fanA better experience
For the brandA measurable result
For the clubA stronger partnership

Featured article

Identity can't be bought

Multi-club ownership is growing fast, but many networks lose their identity and share their debt. What clubs can learn commercially from Wrexham and Estrella.

On the road in sport

Visiting matches, stadiums and events is how I get to know the industry: what fans experience, what partners see and where the opportunities lie.

New York Rangers, Madison Square Garden
New York Rangers, the arena from the stands
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New York Rangers, Madison Square GardenExperienced American sports atmosphere up close during the game against the Anaheim Ducks, which the Rangers won 5-2.New York Rangers, the arena from the standsThe warm-up on the ice under the big video board, a show before the game has even started.
Como 1907, Como Cup
Como Cup: the pitch from the edge
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Como 1907, Como CupGreat to see how commercially strong a pre-season tournament can be set up and how much experience goes into it.Como Cup: the pitch from the edgeSo close to the LED boards and the pitch, where the commercial exposure becomes visible.
Tour de France
Pogačar in the yellow jersey
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Tour de FranceGreat to see how fans can get so close to the action and the experience of the Tour de France. And being spotted on TV by your grandma.Pogačar in the yellow jerseyThe yellow jersey a few metres away.
Netherlands - Poland, De Kuip
Netherlands - Poland, De KuipA 1-1 draw. Interesting to see how data about the crowd is collected at half-time and how strongly the Dutch national team lives among fans.
Kikstart Capital Event
Kikstart Capital Event, the app on the big screen
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Kikstart Capital EventOrganising an event in which commerce, experience and a social goal come together. View the case here.Kikstart Capital Event, the app on the big screenThe Kikstart app live on the big screen. View the case here.
Miami Heat - LA Clippers, Kaseya Center
Miami Heat, before the start
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Miami Heat - LA Clippers, Kaseya CenterThis is where I first experienced American sports. Impressive to see how sport, entertainment and commerce come together.Miami Heat, before the startThe arena with the big video board above the court, just before the start.
Inter Miami, Chase Stadium
The fan shop in a shipping container
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Inter Miami, Chase StadiumFantastic to watch Messi play live and to discover how you build a commercially strong club in a relatively young football market.The fan shop in a shipping containerSelling merchandise from a container with the club crest.
Life After Football Event, Amsterdam
Life After Football Event, AmsterdamA great evening at the Tuschinski Hotel, where sport, entrepreneurship and partners came together. A valuable and instructive experience.
Oranje - Canada, De Kuip
Oranje - Canada, De KuipA 4-0 win in the warm-up match ahead of the World Cup. Great to experience the passion around Oranje up close.
Formula 1, Zandvoort
Formula 1, ZandvoortImpressive to see how commercially strong a global sports event is set up in the Netherlands: from sponsorship and hospitality to the experience around the track.
Willem II, Koning Willem II Stadion
Willem II, Koning Willem II StadionImpressive to see how big the role of supporters is within a club. No fans, no club.
AC Milan - Torino, San Siro
AC Milan - Torino, San SiroSpecial to experience the passion of the Italian fans and to see how a club with such a rich history and an iconic stadium expresses its identity.

Q&A

Questions and answers

What makes a sponsorship partnership truly successful?

That both sides get real value from it. Not the logo along the touchline, but a role in the fan's moment and a result the sponsor can prove. That is why I always start with the brand's goals, not with the package.

Why do standard packages work less and less?

Because every brand has different goals. A board, a logo and two tickets are enough for one and invisible to another. A tailored proposal with a business case fits better and leads to renewal more often.

What makes a business club valuable?

No entrepreneur pays for a buffet and a seat. Members invest for growth: new customers, suppliers and knowledge. A club that actively brings demand and supply together beats a club that mainly has a big network.

How do you turn fan knowledge into commercial opportunities?

By bringing ticketing, merchandise, app and CRM together in one fan profile. Then you see who your fans are, what they value and which partner fits. That is how data becomes a commercial proposal.

What should a sponsor look at before signing?

On three things: which target group do you really reach, are there agreements on activation and not only on visibility, and how is the result measured? Sponsorship is a multi-year investment, so the collaboration after signing counts too.

Which sport do you watch the most yourself?

Almost every sport, but mostly a lot of football, cycling and Formula 1. In winter I watch long track speed skating and short track. When I travel, I always go to the sport that is popular in that country, like basketball in Miami. That variety helps in my work: every sport has its own fans, its own experience and its own way of sponsoring.

Experience

Sep 2026 - present

Independent Business Development Partner

Centrista sportmarketing
  • Creating commercial opportunities within sport
  • Connecting companies, sports clubs and athletes to each other for new partnerships, sponsorship and collaborations
  • Focus on business development, acquisition and commercial propositions that create value for both partners and sport
July 2026 - present

Co-owner

UP Plan
  • Planning tool that fully automates company scheduling
  • Responsible for commercial activities and sales
Sep 2025 - Oct 2026

Commercial associate

Kikstart Capital
  • Responsible for partner relations
  • Networking and reaching big names
  • From start-up to serious revenue
All experience & education →

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