Marja Ruigrok
By Tessa • Mar 17th, 2008 • Category:Marja Ruigrok started her own company in 1991. What started as a one-(wo)man business is now a professional full service research company with 20 employees. In 1994 Ruigrok | NetPanel set up the first web panel in the Netherlands. The company is specialized in qualitative research (interviews and group discussions) as well as online research, online [...]

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