Consulting → the deal
“We're buying a network and we don't trust the plan.”
M&A support: buy-side commercial and technical due diligence on a network or a construction company, and a valuation model you can defend in the investment committee.
Stefan Andriën
Twenty years in infrastructure and telecom. In a global corporate and in a start-up. Boardroom and building site.
I solve complex problems, fill a vacant management seat, or run a part of a business through a change.
What I do
- Consulting — Short and clearly scoped. I help solve one complex problem. A valuation with a model behind it, an M&A case, or a team that needs building.
- Interim — I take a vacant management position and run it for as long as it takes to fill it properly. Director, SVP, COO.
- Transition — I run a part of the business through a change and hand it back when it is stable: an owner change, an integration, a restructuring, or the step across the border into the Netherlands or Germany.
Where it comes from
My basis is finance, strategy and technology, and I have always worked where the three meet. Twenty years in infrastructure and telecom: Vodafone in the Netherlands, in London and in Germany, then a company of my own.
I have led teams from fifteen to eighty people and worked with the people above them: country boards, CFOs and CEOs, investors, public partners. Most of the work was the complex kind: restructurings, the set-up of new business units, M&A from screening to transaction. I held P&L responsibility.
For the last two years I set up a fibre-cabling company and scaled it to sixty people and six million euros of revenue. When the market turned, I wound it down in a structured way.
Twenty years of building and transforming teams. That is what I bring to an empty seat, a transition, or a deal.
What I take on
Interim → the seat
“The chair is empty and the mission continues.”
A director, SVP or COO position that has to be filled now and filled permanently later. I take the seat for the time in between: I run the unit, take the decisions that cannot wait, and prepare the handover to whoever comes next.
Transition → the ground
“The project runs across several parties and nobody is on site.”
An owner abroad, a build across the border, a joint venture, an integration after a deal. I am the person on the ground. I report in the owner's language, I know the German and the Dutch side of the table, and I keep the parties delivering until the structure holds on its own.
Off the clock
I was born in the “Dutch mountains” and now live in Düsseldorf. I run, I play badminton and occasionally padel. I enjoy board games and Lego. I love good food and have a weakness for tiramisu. I am still perfecting my home-made French fries. Happily married.
Contact
Legal
Legal notice
Information pursuant to § 5 DDG. Andriën GmbH, Düsseldorfer Str. 3a, 40545 Düsseldorf. Represented by: Stefan Andriën, managing director. Register court: Amtsgericht Düsseldorf, HRB 103537. VAT ID: DE464995287. Contact: info@andrien.de.
Privacy
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Objection. You may object at any time, on grounds relating to your particular situation, to processing of your data that is based on Art. 6 (1) (f) GDPR (Art. 21 GDPR). Andriën GmbH will then stop processing the data unless there are compelling legitimate grounds that override your interests, or the processing serves the establishment, exercise or defence of legal claims.
Right to lodge a complaint. You may complain to a supervisory authority. The authority responsible for Andriën GmbH is the Landesbeauftragte für Datenschutz und Informationsfreiheit Nordrhein-Westfalen, Kavalleriestraße 2–4, 40213 Düsseldorf, Germany.
Version. September 2026.