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About us

Daamen & van Sluis Accountants Belastingadviseurs was founded in August 1987 by Wim van Sluis and Peter Paul Daamen. From their initial office on the Heemraadssingel in Rotterdam, they laid the foundation for an organization that has continued to grow in both size and expertise over the years.

The firm’s growth was also reflected in the expansion of its leadership team. Ton Martens joined the partnership in 1988. Due to an expanding client portfolio, the firm relocated to the Cypresbaan in Capelle aan den IJssel in 1991. Gert Abma joined as a partner in 1999. The organization’s ongoing development subsequently led to a move to its current location on the Fascinatio Boulevard in Capelle aan den IJssel. Later, Dennis Stouthart and Mark Kempen joined the firm, further strengthening the leadership team.

Our partners are closely involved in day-to-day operations. They play an active role in the acceptance of new clients and engagements and bear ultimate responsibility for their client portfolios. In doing so, they safeguard the quality of our services and ensure that our firm’s high standards are upheld.

Daamen & van Sluis Accountants Belastingadviseurs is driven by a team of dedicated professionals committed to delivering optimal, efficient service every day. Our flat organizational structure gives employees ample scope to take personal responsibility and initiative. Through direct contact with clients, they serve as key representatives of our organization.

Personal attention, commitment, and direct lines of communication form the foundation of our service. This combination enables us to build lasting client relationships and has set us apart in the market for years.

Daamen en van Sluis - Vennoten

Dare – Think – Do