[citation needed] Throughout his upbringing, Lemonis was exposed to the automotive industry, with his great uncle (Anthony Abraham) owning two of the largest Chevrolet dealerships in the United States.

Family friend Lee Iacocca mentored Lemonis and invested millions to help him start a recreational vehicle business.

He unsuccessfully ran as a Democrat for a seat in the Florida House of Representatives shortly after his graduation,[4] whereupon he refocused his career on the automotive industry.

[12] In October 2016, Camping World went public on the New York Stock Exchange (NYSE: CWH) at $22 a share, giving the company a market value of approximately $2 billion.

[14] In July 2017, Camping World announced the acquisition of The House Boardshop, an online retailer specializing in bikes, sailboards, skateboards, wakeboards, snowboards and outdoor gear.

[16] In 2012, Lemonis appeared on an episode of ABC's Secret Millionaire,[17] returning to his hometown of Miami to help local charities.

[25] Lemonis’s foundation launched 'Plating Change,' an initiative to fight food insecurity in partnership with Grubhub and World Central Kitchen.

[26] Lemonis has donated to his alma maters, including Christopher Columbus High School[27] and $15Μ dollars to Marquette University.

[31] After the 2020 Nashville bombing on Christmas Day, Lemonis established a fund to support the business owners affected by the event.

A spokesman for Lemonis replied that the reward offered was for information leading to the "capture and conviction" of the person responsible for (and killed in) the bombing.