Complex sentence: SnackNation is a US-based snack subscription delivery service founded in 2014 that provides snack foods to other businesses, was founded in Culver City, California by Sean Kelly and Andy Mackensen.
Split into simpler sentences: SnackNation is a US-based snack subscription delivery service founded in 2014. The company, which provides snack foods to other businesses, was founded in Culver City, California by Sean Kelly and Andy Mackensen.