White Castle Partners was created by a team of highly experienced entrepreneurs, investors, technologists and strategists. We have years of experience in starting, growing and exiting businesses.

White Castle partners will help you get to the heart of the barriers that are holding your business back and work alongside you to identify the necessary critical steps to achieve your next international phase of growth- rapidly and sustainably.

We will maximize the value of your company by helping you quickly devise and deploy your commercial strategy and channels,  enabling rapid market entry and customer acquisition.

At White Castle Partners, we are passionate about achieving stellar results for our clients, going above and beyond short-term financial gains. Our goal is to help you build your enduring success and long-term legacy.


Frans Rahms

Frans Rahms

Frans has over 25 years of experience in sales and senior EMEA leadership roles in some of the world’s leading companies. He is currently an investor and advisor to young, high-energy, high-growth, fast-moving technology businesses, helping them implement and execute their go-to-market strategies.

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Klaas de Vos

Klaas de Vos

Klaas brings with him over 25 years of experience in consumer products across sales, marketing and management roles. Prior to joining WCP, he was COO of Buffalo Technology Europe and VP EMEA for Western Digital for 16 years.

Peter Madsen

Peter Madsen

Peter is an entrepreneur and executive search professional drawing on over two decades of unparalleled experience building market-leading companies. He is passionate about his work and is proud to contribute to the success of organisations that continue to change the world.

John Ireland

John Ireland

John has 19 years of experience with startups. He has an unmatched track record of success and a fierce passion for helping the world’s most disruptive companies reach their full potential.

Oliver Schulte

Oliver Schulte

Oliver is an entrepreneurial, hands-on executive with extensive track record in driving business growth using all business strategy levers. He is a change agent and creator of scale through performance and partnerships.

Nigel Rees

Nigel Rees

Nigel is a serial entrepreneur who has founded & owned several technology firms over a period of 15 years. He brings with him a proven track record and expertise in mobile application software, mobile devices, platform and  e-commerce.

Gert van der Linden

Gert van der Linden

Gert is co-founder of donedeal, a corporate finance boutique that focuses on transactional services including buy-side and sell-side, capital raise, project financing, and debt advisory for early commercial, growth, and mature mid-market companies across Europe.

Scott Sheldon

Scott Sheldon

Scott is a gifted strategist and direct investment specialist with substantial and broad international experience in business strategy, finance, and leadership roles in both entrepreneurial and corporate environments.

John Leggate

John Leggate

John Leggate

John has more than 30 years in the Energy space – from coal, oil and nuclear power plant construction, to oil and gas field projects operations.For the last 5 years John has been an investment professional and strategic advisor in the CleanTech and Digital Sector

Lars-Ole Hansen

Lars-Ole Hansen

Lars-Ole has over 30 yrs. experience in leading IT and Communication companies: Siemens Enterprise Communications, Avaya, AirClic, 3Com/US Robotics & HP.  He has extensive experience in formalizing and executing strategies, setting up effective organisational structures and Go-to- Market models, mentoring and coaching.

Leon Bruggeman

Leon Bruggeman

Leon is a global entrepreneur with over 26 yrs. experience in sourcing, manufacturing, and high-level Sales & Marketing positions then later as founder/owner of several consumer goods companies in North America and Asia. A seasoned networker & expert negotiator, Leon possesses a global view while recognizing local nuances and being adaptive to different environments & cultures.

Graham Sargood

Graham Sargood

Graham is an Entrepreneur and Executive with 20 yrs. experience in the Telco and Media industry.  He is a sought after consultant & advisor and has worked with companies like NTL, Telewest, Wanadoo, Monaco Telecom (C&W International), MSP, Deloitte and Virgin Media. He has extensive experience in raising money for start-ups and sits on the Board of Directors of several media and Telco businesses internationally.

Bart van Riemsdijk

Bart van Riemsdijk

Bart is an entrepreneurial, hands-on executive with over 18 years of experience in Sales & Marketing. A creative and seasoned executive, he brings in a global network of supplier, business and consumer segments within the Consumer Electronics, IT and Telco industries. Bart assumed leadership positions in top companies like Philips, HP and Samsung as well as start-up and growth companies.

Pascal de Mul

Pascal de Mul

Pascal is a strategic business developer and team leader working on the fault lines between software and hardware, content and services, mobile and home while finding ways for companies to cooperate in truly new win-win models.

Tony Davis

Tony Davis

Tony  has more than 20 years leadership experience in strategy consulting, deal origination, fund raising and capital across broad fields including but not limited to technology, music production and film finance.

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