Our team

Hans van Craaikamp

Hans van Craaikamp

Director and co-owner of Rock Solid BV. Hans has more than 45 years of experience in road construction and recycling from his civil engineering background and in particular the use of incinerator bottom ash (IBA). Hans is mainly responsible for our markets in the Netherlands, Germany and US market.

Peter Bleeker

Peter Bleeker

Director and co-owner of Rock Solid BV. Peter, based on his knowledge on chemical technology, has been working for more than 25 years on quality improvement, certification and application of incinerator bottom ash (IBA). Peter is mainly responsible for R&D and our fast-growing English market.

Ruud Swart

Ruud Swart

Pieter Schaap

Pieter Schaap

Pieter is responsible for the application of all European environmental and logistical regulations that apply to our business operations, based on his logistic experience and its environmental-technical expertise. Pieter is head of the business office and also responsible for the sale of all ferrous and non-ferrous metals.

Ben Visser

Ben Visser

Ben has years of experience in managing civil engineering projects. As such, Ben supervises the our projects on the processing IBA and the quality controls that applies to these.

Koen van der Zwet Slotenmaker

Koen v.d. Zwet Slotenmaker

Erik Piek

Erik Piek

Erik is responsible for planning all logistic operations within the activities of Rock Solid, such as the shipment of IBA from England, Ireland and Germany to the Netherlands. In addition, Erik also takes care of the transport of the ferrous and non-ferrous metals that Rock Solid produces from its operations to the end-users of these metals.

Meysam Qureyshi

Meysam Qureyshi

Meysam is responsible for carrying out all non-ferrous analyzes both in the granulate and in the non-ferrous mixtures themselves. On the basis of their analyzes, our IBA-processing are controlled.

Cantemir Mefa

Cantemir Mefa

Damian Patandin

Damian Patandin

Stephanie van der Starre

Stephanie van der Starre

Stephanie has extensive experience in the financial world. At Rock Solid she is responsible for the administration process as Head of Administration and works closely with our accountant. She also has the responsibility for our business insurances.

Maurits Ruiter

Maurits Ruiter

Eliëtte Zomerdijk

Eliëtte Zomerdijk

Eliëtte is responsible for all bookings of incoming and outgoing invoices and the invoicing itself. She also provides secretarial work and general support the Rock Solid team.

Jur Dijk

Jur Dijk

Jur is responsible for all project administration. Based on his work invoicing and project cost calculations are carried out.

Monique van der Starre

Monique van der Starre

Mark Wederell

Mark Wederell

Project manager Rock Solid UK

As UK Project Manager, Mark is responsible for managing the new business acquisition and contract development side of our IBA processing operations in the United Kingdom, as well as managing our new team of UK staff. Following a number of acquisitions made by Mark, Rock Solid has seen a fast and expansive growth of both its presence, market reach and operations within the UK.

Adam Mitchell

Adam Mitchell

Aggregate sales manager

Adam is responsible for the marketing & sales of the final IBAA product. Ensuring our client has full satisfaction that aggregate has 100% reuse. Adam is also responsible for the development and expansion of applications for IBAA thereby providing solutions for the client within aggregates industry.

Stephan Roos

Stephan Roos