ThinkChicago is World Business Chicago’s flagship STEM talent attraction and retention program, which connects diverse, top-tier talent with innovative Chicago companies and startups to grow the city’s thriving technology, innovation, & startup ecosystem. (CHICAGO) – July 27th, 2022 — Mayor Lori E. Lightfoot today announces the return of ThinkChicago Lollapalooza, July 28-31, 2022 in Grant…