We make you strong!

About us

I come from a family of freight forwarders and merchants from Meeden in the Groninger Land in the Netherlands.

We have been independent entrepreneurs for 4 generations and therefore over 100 years.

Entrepreneurial thinking and decision-making has determined my career path from the start.

My focus is on the sale of real estate, especially holiday properties through my company Olthof Immobilien.

In addition, controlling, management and training of executives and employees via my company Firmendoc.eu.

Use my life and work experience for the success of your company.

As an internationally active management consultancy, we analyse your company for opportunities and risks. We not only consider the market situation but also its structures, working methods, corporate policy, leadership style, as well as you and your employees as a team.

Our services

We are happy to bring you forward and make you strong in many areas. We are also happy to accompany and advise you and your company in the medium or long term.

Talk to us!

Profit from our KNOW HOW in German, English or Dutch language. We would be pleased to advise you comprehensively.


owner: Tonnis Olthof
Schulstraße 24a
D-26629 Strackholt

E-Mail:     olthof@firmendoc.eu
Mobile:      +49 (0) 171 – 369 05 73