This study explores organization capital and its spillover effects among Chinese manufacturing firms. By linking patent data with China’s annual survey of industrial enterprises database, we examine technological proximity as one potential channel for organizational spillover but find weak evidence. This result is consistent with previous findings from developed countries. In contrast, organization capital is found to generate positive spillover in China when geographical proximity is considered. In other words, it is found that spillover from organization capital is likely among Chinese firms due to geographical proximity rather than technological proximity.