This article contributes to debates on business power, noisy politics, and right-wing populism. The populist right weakens strategies of quiet politics, which many suggest has led to a steep decline of business power. I challenge this view and argue that a combination of innovative strategies and ample financial resources allow business associations to exercise power in this environment. Drawing on new empirical evidence, the article makes three central contributions. First, I suggest that the failure of Remain business advocacy in the 2016 Brexit referendum resulted from the constraints of administrative legislation (the PPERA), weaknesses in campaigning strategies, and the CBI leadership’s decision to not register as a campaign organization. Second, while my regression analysis provides some support for Culpepper’s quiet politics argument, the Swiss business federation Economiesuisse has won 90% of the referendum campaigns it has led, including many referendums with high issue salience against right-wing populists. Third, Economiesuisse shows that business strategies of ‘loud voice’ can be successful. With money and innovative public-facing campaigning strategies, business organizations can win in noisy environments and against right-wing populists.