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About us
Hans Warmerdam
Hans Warmerdam joined Haselhoff Group in 2000 as senior consultant and managing partner. He has over 25 years of experience within the IT industry in the ares of commercial systems integration. Before Haselhoff Group, he occupied several commercial, financial and operational positions at IBM (20 years). Hans Warmerdam studied commercial economics and hotel management at the Hogere Hotel School in The Hague. Later, he completed post-university eductation at Nyenrode University in the areas of ágents of change' and 'chaos theory'.
Jeroen Sevenstern
Since the beginning of 2010 Jeroen with Haselhoff Group focus on the mediation of interim managers and ICT specialists. He has 15 years of experience in recruitment a.o. at Randstad and Nike. His strength is making the turn of the complex client environment to the right skills and competences of the intended interimmer or specialist. He studied at the Hotel and Catering School ter Duinen at Koksijde, Belgiumdrs. Robert Vos
Robert Vos joined Haselhoff Group in 2011 as senior consultant and partner. With his more than 35 years of experience within the IT industry, he is a recognized expert on IT architectures and infrastructures. Before Haselhoff Group, he managed meta Group (Nederland), a global IT research and consulting firm. Before that, he worked at Compuware, Uniface and IBM (22 years) in various international management positions. Robert Vos studied Economics at the Erasmus University Rotterdam.drs. Gerrit Jan Hondelink
Gerrit Jan Hondelink joined Haselhoff Group in 2007 as senior consultant. He has over 20 years of experience in the IT industry: at Logica, he followed the traditional career from programmer all the way to Director Operations. As HR manager, he gained recruitment experience. Following Logica, he took several management positions at Rabobank and Randstad gaining more understanding for the IT user perspective. Gerrit Jan Hondelink studied mathematics and information technology at the Rijksuniversiteit of GroningenHenk Vermaas
Since the end of 2006 to mid-2009 Henk was as CEO responsible for Capgemini Nederland B.V. He worked at Capgemini for 21 years and has a variety of roles during this period, including project manager, unit manager and CFO. After his studies of civil engineering Henk worked at the Waterloopkundig Laboratory for 7 years of which, among other things, 2 years in Pakistan. In addition, he also studied business economics. He is affected by people with passion, people who want to develop themselves and are positive in achieving results. SInce January 2010 Henk is associated with Haselhoff as an executive coachAdry Klomp
Since July 2011 Adry joined Haselhoff as office manager and recruitment researcher. She has years of experience as an account manager at Inforex, Datapoint, Ormåsen, Advisie, Compunet and Staffware. After several years she worked as an independent, she started working as an office manager at the Ministry of Defense, Department of Real Estate application. She was responsible for contract administration and selection of consultants who were hired for various internal IT projectsHans Boddeke
As of August 2010 Hans is as a senior consultant associated with Haselhoff Group. Since the end of the 1980s, Hans is active in the ICT industry (including Capgemini, Getronics, PinkRoccade and Allshare Banking Solutions). He works on the cutting edge of business goals and ICT solutions. Hans has a lot of (inter-)natgional experience in commercial and managerial area, as well as in guiding and coaching of professionals. His training, he has further developed throughout his career, such as the Rotterdam Business School ISAMEdu van Bienema
Edu van Bienema has been active in the IT industry for over 20 years. He joined Haselhoff Group in 2007 as senior consultant. Before Haselhoff Group, he worked as Business Development Manager at AnyWi Technology in Leiden. Before AnyWi, he worked as Marketing- and Business Development Manager at Hewlett-Packard, Compaq, Digital Equipment, and Philips. He studied Electrical Engineering at the HTS in Arnhem.Ronald Kremers
Upon completion of his study at the Hogere Economische School in Amsterdam (1985), Ronald joined IBM as account manager. In that position, he gained a broad view on the intersection between business processes and the information technology. In 1998, he joined ELC Systems Management (later Ordina) as business unit manager. In 2003, Ronald was co-founder of a new IT company focused on technical infrastructure implementation and managed services. In 2005, he joined Haselhoff Group as senior consultant and partner.Ir. Renee Cloesmeijer
After completing her studies technical business skills, Renee is working as an ICT consultant, project and hiring manager for KLM, CMG and Logica. Besides that she is allready for more than 10 years an expert active in the field of therapy and coaching. By the awareness of thinking - and behavior patterns she helps her coachees make effective choices. Renee joint Haselhoff Group since 2009 as a professional coach and trainerKoert Hofdijk
Since August 2010 Koert Hofdijk is active for Haselhoff Group. Over 30 years ago, he moved to IBM where he worked for 27 years, including as Segment Manager and Sr. Client Manager. During those years Koert has a broad experience in all facets of the IT industry, such as infrastructure and architecture, project and program management, marketing and sales, outsourcing and often complex projects. After IBM, he has been active in various management positions within ICT. All in all, he has developed a broad perspective on supporting business processes through ICTHans van de Vliet
In 23 years at IBM, Hans advised many people and organisations. Within IBM, he has been in charge of business units, branches and divisions. As a board member he had business responsibility in the Netherlands, the UK, Ireland and South Africa. Since 2000 he has been partner and advisor to several companies and joined two boards. Besides studies at Nijenrode and Insead, he enjoyed his training at the Nautical College.He worked eight years as merchant marine officer in ocean navigation before joining IBM. His motto is "getting things done" which always brought him success. Since March 2010, Hans is associated with Haselhoff Group as an executive coach
