In their bestselling book, The Titanium Economy, McKinsey partners Asutosh Padhi, Gaurav Batra, and Nick Santhanam discuss the industrial-tech sector, which is composed of companies that create products such as aerospace parts, color enamels, and recycled plastic lumber; things consumers don't necessarily buy but which we all rely on for the functioning of our economy. These companies offer a surprisingly bright future, not just to investors but to workers and our broader communities as well.