\documentclass{article}
\usepackage{threeparttable}
\usepackage{multirow}
\usepackage{booktabs}
\begin{document}
\begin{table}[!ht]
\setlength\tabcolsep{0pt}
\centering
\begin{threeparttable}
\begin{tabular}{@{\extracolsep{2ex}}*{4}{cccc}}
\toprule
Row 1 & \multirow[t]{3}{*}{top} & \multirow[c]{3}{*}{center} & \multirow[b]{3}{*}{bottom} \\
Row 2 &  &  &  \\
Row 3 &  &  &  \\
\bottomrule
\end{tabular}
\end{threeparttable}
\end{table}
\end{document}