Arne Casteleyn

I help technology-driven companies unlock growth by combining sharp commercial strategy, enterprise sales experience and a clear outside-in market view.
Over the past 20 years I’ve led international sales, GTM and positioning in complex B2B technology sectors, turning a niche printed electronics manufacturer into a recognised European partner acquired by a global group.
I’m most valuable to scale-ups and SMEs that want to strengthen their commercial organisation, refine their value proposition, accelerate growth or enter new markets. My contribution is pragmatic, strategy-driven and focused on measurable impact.

I add most value to companies that want to:
• strengthen their commercial organisation
• refine their value proposition and GTM
• accelerate revenue in complex B2B cycles
• expand into new international markets
• professionalise partnerships and enterprise selling

Relevant achievements
• Built strategic partnerships with global upstream players to promote new technologies into their customer networks
• Demonstrated long-term value selling in complex, multi-stakeholder enterprise cycles
• Introduced and positioned innovation in conservative, tech-driven markets (MedTech, industrial, defense)
• Closed business across the full spectrum: start-ups, scale-ups, SMEs and OEMs
• Repositioned and scaled a technical niche player into a European reference, leading to a successful strategic acquisition
• Strengthened brand positioning and thought leadership to win trust with international enterprise accounts