Getty / Astrid Stawiarz
Sara Blakely used to sell fax machines all day before coming home to her apartment to fulfill orders of Spanx all night.
- For these 11 famous entrepreneurs and celebrities, their side hustles became more than just a way to supplement their income.
- Some of these successful entrepreneurs, like Marc Benioff, stayed at their full-time jobs even after their companies took off.
- Slack CEO Stewart Butterfield never intended for the messaging platform he built for the employees of his video game company to become his main source of income.
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A side hustle can be more than just a way to supplement your income.
These 11 entrepreneurs built their fortunes from ventures that started out as part-time gigs. Not all of them were quick to give up their day jobs, however. Ashton Kutcher has continued to act even after his venture capital firm took off, while Slack's Stewart Butterfield gave the corporate messaging app his full attention after his video game company went under.
Keep reading for a look at 11 people who made more from their side hustles than their primary jobs.