Westerduin and Werkis join forces for further regional growth

3 September 2026
Werkis x Westerduin

From left to right in the photo: Charlotte Strengholt, Operations Director at Werkis; Michèl Schilders, Managing Director at Westerduin; Wessel van Dijk, Managing Director at Werkis; and Gert van Drie, Partner at Quadrum Capital.

Westerduin and Werkis are joining forces, marking the next step in the development of a strong regional staffing platform. Together with growth partner Quadrum Capital, the organisations are continuing to build a group that now comprises twenty branches across the northern, eastern and central regions of the Netherlands.

Westerduin and Werkis have both been active in the staffing sector for almost twenty years, focusing on production, logistics and engineering. The organisations share a strong regional focus and a people-centred approach. Westerduin operates nine branches in the central Netherlands, while Werkis has eleven branches in the north-east of the country. Adhocdocent, part of Westerduin, is also part of the group.

Building a strong regional platform
The partnership gives both organisations greater scope to further strengthen their regional presence, open new branches and share knowledge and expertise. At the same time, the combination responds to developments within the staffing sector, where increasing regulation and technological change require greater scale, expertise and resources.

Preserving identity and entrepreneurship
Westerduin and Werkis will continue to operate under their own names and retain their individual identities. Continuity will also be maintained in the management of both organisations: Michèl Schilders and Wessel van Dijk will remain Managing Directors of Westerduin and Werkis respectively.

Wessel van Dijk, Managing Director of Werkis: “With Westerduin, we are taking an important step in the development of our new staffing group. We recognise many similarities in each other’s culture and way of working: a focus on people and genuine involvement are deeply embedded in both organisations. This cultural fit was essential for us in deciding to join forces. Building on this shared foundation, we can shape the future together while retaining what makes each of us strong and distinctive.”

For Quadrum Capital, the partnership is aligned with its ambition to continue building the regional group, with entrepreneurship and local engagement at its core.

Gert van Drie, Partner at Quadrum Capital: “Our ambition is to become a leading regional staffing platform. The foundations are already in place: strong local branches, entrepreneurial teams and a culture built on connection, pragmatism and reliability, with clients and professionals at the heart of what we do. As a growth partner, we want to strengthen this foundation rather than standardise it. That is why Westerduin and Werkis will retain their own names and identities. We are proud to support them on this journey.”

About Westerduin
Westerduin is a recognised employment intermediary that connects people with work. The organisation has been active for almost twenty years and focuses, among other areas, on production, logistics and engineering. Adhocdocent is also part of Westerduin. More information: westerduin.nl, adhocdocent.nl.

About Werkis
Werkis is a recognised employment intermediary with a strong position in the north-east of the Netherlands. The organisation focuses on connecting candidates and clients, with a strong emphasis on people and meaningful work. More information: werkis.nl.