Which Dutch designer/agency emphasized the designer as an objective problem-solver who finds solutions through research and analysis, simplifying the message and the means for conveying it to an audience?

Wim Crouwel

Explanation:

Wim Crouwel was a graphic designer from the Netherlands famously known for his work that represented experimental and functional. He contributed his designs in museums by embracing grid and typefaces methods to design catalogues, posters, and exhibitions. He co-founded Total Design company in 1963, which became an international company to produce designs for business.