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About us

Locally involved
Fixed point of contact
Your one-stop-shop

We are Newtone. The consultancy and accountancy firm for the enterprising Netherlands. Created in 2024 by the merger of Koenen en Co, HLB Witlox Van den Boomen and PKF Wallast. With over 1,100 employees from 13 branches in and twelve multidisciplinary offices located in the Netherlands’ most vibrant regions.

Stronger through regional leadership

Our combined strength provides regional leadership. Logical. Because from our core strengths – in-depth professional knowledge, customer focus and multidisciplinary thinking – we strengthen our network, increase our expertise, attract talent and achieve scale.


Newtone: a new name with familiar power.

Newtone is futureproof. That characteristic comes from our national span and regional strength. But also from our national scale and international network. From this hybrid way of organizing we continue to optimize our high-quality, broad and innovative services. Including the familiar human contact. Including an office always nearby. Wherever our distinctive services are needed. Exactly where we are.

Discover our full range of services

Our services are not stand alone. We always collaborate with other specialists to provide you with the most effective advice.

Newtone Over Ons

Our culture

The international HLB network

We are proud to be part of a strong international network of independent consultancy and accountancy firms. HLB has a history of innovation and collaboration, and is committed to helping clients grow across borders. With 47.000 professionals working in 157 countries, HLB combines local expertise with global capabilities. HLB offices have deep roots in their local communities and maintain close connections to professionals around the world – an invaluable advantage for international businesses.

Over Ons Newtone

Our specialists are at your service