The millions of farm workers in the Global South are an important resource for smallholder producers. However, research on their labour organisation is limited. This article focuses on smallholder farm workers in Ghana’s cocoa sector, drawing on insights from qualitative interviews and the concept of bargaining power. We review the labour relations and working conditions of two historical and informally identified labour supply setups (LSSs) in Ghana’s cocoa sector, namely, hired labour and Abusa, a form of landowner–caretaker relations, and identify (...) an imbalance of horizontal power. Further, we analyse the labour relations and working conditions of an emerging and formal LSS in Ghana’s cocoa sector: private labour providers (PLPs). We argue that PLPs are likely to address the imbalance of horizontal power between farm workers and smallholders and bring about significant improvements in the working conditions of farm workers. We also assess the sustainability potential and limitations of PLPs and argue that tensions exist. We contribute to the growing horizontal power perspective by providing avenues for research and policy related to promoting sustained labour rights for farm workers in smallholder agriculture in the Global South. (shrink)