“There is always a solution. And it starts with ourselves.” – N.N.


Siem has spent over 25 years in HR roles for blue-chip listed companies (Unilever, A.P. Moeller-Maersk), as well as for privately owned highly international businesses. As global HR director, over the past 12 years Siem has focused on generating and sustaining (hyper) growth for companies with a strong and expanding international presence, predominantly in Europe and Asia.

Siem’s approach is to always start from the business strategy (not from HR…!), followed by translating this into HR-priorities, building diverse yet balanced leadership teams and organizational setups that meet the current as well as future demands, and ensuring a healthy talent-pipeline for the top roles.

Having operated as HR-director in sectors such as transportation, retail and professional services, he now has turned to supporting business leaders and international firms as an independent advisor.

His style is calm yet engaging, working largely below the radar, encouraging the company’s leader and leadership-team to flourish and for them to enthuse others. Being Dutch he is direct and crisp in his approach, yet respectful. He hates window-dressing, hidden agendas and unnecessary complexity.

He thoroughly enjoys seeing individuals and teams showing major ‘jumps’ in their impact, apparently tapping into areas of potential that they had previously been unaware of. As a former soccer-player he will often use sports-analogies as a vehicle for his ideas.