The separation between an ‘inside’ and ‘outside’ of organizational politics has become untenable in a rapidly changing political landscape, where people engage in environmental activism in many different domains. To understand contemporary environmental activism, we situate ourselves empirically within an energy utility, Ordalia [pseudonym], a large corporation active across Europe and heavily criticized by external activists for its carbon emitting operations. By merging Rancière’s method of equality and notion of ‘partaking’ with literature on prefiguration in social movements, we analyse everyday green actions pursued by Ordalia’s employees, which we conceptualize as ‘prefigurative partaking’. By focusing on six characterizing themes of prefigurative partaking – aspirational, individual, professional, critical, loyal and communal – we have found that employee activism is incremental, horizontal and boundaryless. We discuss these findings in relation to recent calls for more fruitful exchanges between social movement theory and organization studies, arguing that Rancière’s conceptualization of politics can help us study actions that span civil society and business. This complements and expands our understanding of environmental activism as a dispersed set of actions that can take place anywhere, and hence also at work.