Revelations that came from the Stratfor hack:
Dow Chemical, responsible for 25,000 deaths in the Bhopal, India 1984 gas leak, hired Stratfor to spy on activist group The Yes Men https://timesofindia.indiatimes.com/india/Stratfor-was-Dows-Bhopal-spy-WikiLeaks/articleshow/12062587.cms
Coca-Cola hired Stratfor to spy on PETA activists, worried they might be planning direct action https://www.ibtimes.co.uk/wikileaks-gifiles-assange-coca-cola-stratfor-vancouver-305295
US oil and gas industry hired Stratfor to spy on ProPublica, which broke the first stories about the environmental/health risks of fracking https://www.politico.com/states/new-york/albany/story/2013/12/wikileaks-propublica-and-albany-paper-started-anti-fracking-movement-010018