Welcome to Grassroots Advertising, where we offer eccentric and unforgettable guerrilla marketing services throughout the thriving city of Chicago. Chicago, the third most populous city in the United States, boasts a population of 2.7 million residents and is a hub of culture, arts, and entertainment. With its iconic landmarks like Wrigley Field, The Art Institute of Chicago, Navy Pier, and Shedd Aquarium, the city attracts millions of tourists every year, providing a massive audience for businesses to explore.