Large‐scale land investment projects in sub‐Saharan Africa have received substantial criticism for their negative local impacts, but few studies discuss specifically their application of corporate power on the ground. This article provides an examination of such application in rural Sierra Leone. The article describes how one corporation both directly and indirectly co‐opted authority and privatized force in order to wield power over the land and people. The data illustrate how local authorities and security actors were incentivized to defend the interests of the corporation as opposed to the local communities they supposedly represent and protect. Such processes ensured corporate power not only over the land but also over the local population. The findings, therefore, demand more robust and multidimensional accountability mechanisms to avoid the corporate acquisition of power in rural Africa. Such mechanisms would demand: (1) that investing corporations be more informed about local sociocultural, economic, and political dynamics on the ground; (2) that funders and local governments fund, report on, and enforce more regular, culturally sensitive, and independent assessments of project impacts; and (3) that funders, governments, corporations, and customary elites be held accountable for the negative impacts of such projects by international and national civil society organizations.