This document discusses how the correlation between sustainability and brand strength has changed in recent years. It finds that perceived sustainability performance is strongly correlated with several measures of brand strength and operating performance. Data from four organizations (InterBrand, BrandFinance, RepTrak, and Capstone) show that perceived sustainability performance correlates with 22% higher brand strength on average, 29% lower reputational risk, 44% higher engagement on digital communications, and 9% lower cost of credit. While the relationships are complex, the data provides evidence that sustainability positively impacts brands and business operations, especially around environmental and employee issues. Improving sustainability performance can thus create greater market and societal value for companies.