Berry Tanis

Presenze BV provides human resources and management services. The firm's BPR-Toolbox is a secure online environment that people, organizations and professionals helps to improve the engagement, productivity and resistance (lifestyle) risks in the work environment. The company was founded in 2010 by Berry Tanis and JanVerkooijen and is headquartered in Rotterdam, the Netherlands.

New VOC Management BV is an independent private equity firm with its headquarters in Rotterdam, the Netherlands. It was founded in 2000.

Careway BV provides management support services. The firm specializes in optimization of hidden processes often through the use of specially developed software combined with practical knowledge of mental health care. The company was founded by Berry Tanis in December 2007 and is headquartered in Rotterdam, the Netherlands.