How These Entrepreneurs Run Their Businesses -- While Watching Their Kids Full-TimeThis is how the newest crop of entrepreneurs balances full-time parenting with running a business.

Griffin "Griff" Kubik is holding a dog leash, his 3-year-old fingers wrapped around the vinyl cord as a terrier sniffs the grass near his feet. It might not look like it to passersby in the park, but the duo are on the clock: They're on a photo shoot, the dog is about to be inChicago Parent杂志e, and Griff is playing unofficial dog wrangler. Nearby, Griff's parents are setting up the next shot.

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"Hold tight to the leash, Griff," calls his mother. He's used to taking instruction. His parents are cofounders ofTK Photography, which, with more than 1,200 sessions a year, is one of Chicago's biggest family photography companies. Dad (Thomas) is the principal photographer; Mom (Tiana) is the management whiz. They have a team of three other photographers, as well as cullers, editors and admin support. And through it all, Griff has been a constant presence: The business is one endless Take Your Kid to Work Day. "We're not taking Griff along because we can't find a babysitter," Thomas says after the shoot. "We want him involved, and being entrepreneurs means we have the flexibility to spend that time together."