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> Philosophy & values

Satisfied clients in the long term

At thg, the client is always our main concern. We analyse his situation and manage his request from his own perspective. We become, figuratively speaking, an extension of his arm. Our advice supports his actions, our expertise is added to his competences.

We systematically meet the needs of our clients, we bring adequate solutions, we help perpetuate their company and we add value to their activity. We offer a diversified range of services, the motivation to provide quality support and to establish a reliable relationship based on respect and fidelity.

The quality of the individual

The human dimension is anchored in the values of our group. Each employee is an individual first, whose richness must be reflected naturally in the exercise of his different tasks.


To flourish in his work, he must be able to develop his curiosity, to learn, to expand his field of competences, to explore new areas. We pursue this objective by organising many training sessions. They are both for our local employees as well as for all the specialists who we can call upon when needed.

Personal development is important but not sufficient. There must also be a group dynamic, a company spirit in which every person recognises himself/herself and to which everyone contributes. Therefore, as much as possible, we favour exchanges between specialists of various disciplines, whether they are internal or external. At thg, we are convinced that the quality of individual support is measured collectively.


Our local offices

With over ten offices in Belgium and the Grand Duchy of Luxembourg, thg is well-established. This territorial coverage ensures a maximum of trust and efficiency. Find your local office!

Our management

The managers of thg have deliberately opted for close-to-the-customer service capabilities. That’s why we have a wide network of offices located in the main cities of the French- and German-speaking part of Belgium as well as in the Grand Duchy of Luxembourg. Each office can leverage upon internal and external experts in all areas of modern company management. Our management is at the customer's side.

Our clients
thg is a medium-sized accounting and tax firm serving more than 2,500 clients locally and internationally. Are you a free-lancer, at the head of a start-up or an executive of a company active on the domestic or international market? At thg, we understand your business issues and share your daily reality, whatever it may be. Whether they are big or small, local or international - we serve our customers with care and foresight.
Our values, our philosophy
At thg, client satisfaction is always our ultimate goal. We analyse our client's situation and help solving their business issues with added-value advise tailored to each specific situation. Our motivation is to provide you high quality services and to establish a reliable relationship based on respect and trust. With caution and foresight, we always have an eye on your goals.
A success story since 1983
Joseph Faymonville created his fiduciary in 1983 in his region of origin, on the border between Belgium, the Grand Duchy of Luxembourg and Germany. Today thg has more than 150 highly qualified employees and about 20 external partners. We are established in all the big cities of Wallonia as well as in the Grand Duchy of Luxembourg. 2500 clients benefit from our wide range of services. More about our history.