Armando Ramos got his start offering cheap drain service via Craigslist ads, but his company quickly grew thanks to a savvy rebranding and some sound third-party business advice

Rodney King’s entrepreneurial spirit and ingenuity allowed him to turn a part-time pressure-washing gig into a successful drain cleaning enterprise

Josh Burris puts in the time — and sometimes the driving mileage — to grow his 2-year-old drain cleaning venture in North Dakota