Marcel de Leeuw
2 email domains
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Marcel De Leeuw Email & Phone Number
Owner
at
Thelion Management
1 work email found
@upcbroadband.com
LinkedIn matched
✓ Verified May 2026
3 data sources
Profile completeness 86%
Current company
Thelion Management
Role
Owner
Location
Mijdrecht, Utrecht, Netherlands
Who is Marcel De Leeuw? Overview
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Quick answer
Marcel De Leeuw is listed as Owner at Thelion Management, based in Mijdrecht, Utrecht, Netherlands. AeroLeads shows a work email signal at upcbroadband.com and a matched LinkedIn profile for Marcel De Leeuw.
Company email context
Email format at Thelion Management
This section adds company-level context without repeating Marcel De Leeuw's masked contact details.
{first_initial}{last}@upcbroadband.com
86% confidence
AeroLeads found 1 current-domain work email signal for Marcel De Leeuw. Compare company email patterns before reaching out.
Profile bio
About Marcel De Leeuw
Marcel De Leeuw is a Owner at Thelion Management. They possess expertise in telecommunications, program management, change management, management, integration and 14 more skills. They is proficient in English, French and German. Colleagues describe them as "I had the pleasure to work with Marcel for a number of years and closely over the last two. His professionalism, understanding of the business and his client's needs, along with a close attention to detail and tenacity are a great mix of skills. His program management experience is without question, and are heavily supported by the relationships Marcel forges with his clients. He enabled us to deliver large scale projects that had an impact on our 35,000 people across 14 countries, which will have a lasting impact. Marcel also has a great sense of humour which helps not only build the bonds, but also get his clients through the difficult parts. " and "I have worked for/with Marcel for various projects and I can say that I was always amazed by his great professionalism, the speed in understanding complex issues and his calm under pressure. I would not hesitate for a moment to work with him again."
Listed skills include Telecommunications, Program Management, Change Management, Management, and 15 others.
Current workplace
Marcel De Leeuw's current company
Company context helps verify the profile and gives searchers a useful next step.
Thelion Management
1 role
Marcel De Leeuw work experience
A career timeline built from the work history available for this profile.
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Owner
FAQ
Frequently asked questions about Marcel De Leeuw
Quick answers generated from the profile data available on this page.
What company does Marcel De Leeuw work for?
Marcel De Leeuw works for Thelion Management.
What is Marcel De Leeuw's role at Thelion Management?
Marcel De Leeuw is listed as Owner at Thelion Management.
What is Marcel De Leeuw's email address?
AeroLeads has found 1 work email signal at @upcbroadband.com for Marcel De Leeuw at Thelion Management.
Where is Marcel De Leeuw based?
Marcel De Leeuw is based in Mijdrecht, Utrecht, Netherlands while working with Thelion Management.
What companies has Marcel De Leeuw worked for?
Marcel De Leeuw has worked for Thelion Management.
How can I contact Marcel De Leeuw?
You can use AeroLeads to view verified contact signals for Marcel De Leeuw at Thelion Management, including work email, phone, and LinkedIn data when available.
What skills is Marcel De Leeuw known for?
Marcel De Leeuw is listed with skills including Telecommunications, Program Management, Change Management, Management, Integration, Erp, Itil, and Business Process Improvement.
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