I have the following snippet
\documentclass{article}
\usepackage{tabularx}
\usepackage{rotating}
\usepackage{multirow}
\newcolumntype{C}{>{\centering\arraybackslash}X}
\newcolumntype{V}{>{\centering\arraybackslash}m{1.5cm}}
\newcommand{\verttext}[1]{\rotatebox{90}{\parbox{3cm}{\centering\textbf{#1}}}}
\renewcommand{\arraystretch}{1.5}
\begin{document}
\begin{table}[h]
\centering
\begin{tabularx}{\textwidth}{V | V | C | C |}
\multicolumn{2}{c}{} & \multicolumn{2}{c}{Ausmass des Interesses am Unternehmen} \\
\cline{3-4}
\multicolumn{1}{c}{} & \multicolumn{1}{c|}{} & Gering & Hoch \\
\cline{2-4}
\multirow{2}{*}{\verttext{Ausmass der Macht}}
& \verttext{Hoch} & Zufrieden stellen & Key Players \\
\cline{2-4}
& \verttext{Gering} & minimal betreuen & informieren \\
\cline{2-4}
\end{tabularx}
\end{table}
\end{document}
as you can see, the "Ausmass der Macht" isnt centered (its two cell high) and shouldn't be wrapped. The two cells (Hoch + Gering) are high enough so the text shouldn't be wrapped. I already found a kinda similar question here: Vertical Text using multirow in the Table though I have no clue how to resolve that issue.
Thanks in advance :)



