From Side Hustle to Triple Shark Tank Deal: How Lindsay Mullenger Built Petite Keep Into a Multimillion Dollar Phenomenon

Lindsay Mullenger turned a quiet moment of organizing her child’s nursery into a Shark Tank–backed business. What started as a personal need for a meaningful keepsake box became Petite Keep, a company that won over Jamie Kern Lima, Mark Cuban, and Barbara Corcoran. 

From balancing a corporate career and motherhood to assembling products by hand with her family, she built her business with a mindset of “we figure it out.” Today, Lindsay runs a fast-growing company powered by community, storytelling, and a female-led team. 

Join us as we unpack her Shark Tank experience, the marketing strategies that fueled her growth, and the mindset shifts that every aspiring leader and entrepreneur can apply to transform a simple idea into something extraordinary.

"Our core values are: be curious, grow every day, and own the outcome." ~ Lindsay Mullenger

In This Episode:

- The birth of Petite Keep

- Balancing career, family, & a startup during the pandemic

- Building the brand with influencer marketing

- Family support to overcome fulfillment challenges

- Quitting her job and the Shark Tank experience

- The pitch and the deal with the sharks

- Challenges growing the business

- Future goals and vision for Petite Keep

- Social media marketing strategies and being authentic

Keep treasured memories alive with Petite Keep’s personalized trunks!

Shop now at: https://petitekeep.com/

About Lindsay Mullenger:

Lindsay Mullenger is the founder and CEO of Petite Keep, a keepsake brand turning life’s meaningful moments into heirloom treasures. A former brand builder and mom of five, Lindsay launched the company from her attic in 2020 and has since grown it into a nationally loved, eight-figure business rooted in heart, design, and intentional celebration.

Website: https://petitekeep.com/ 

Instagram: https://www.instagram.com/lindsatpetitekeep/ 

Facebook: https://www.facebook.com/petitekeep/ 

Where to find me:

IG: https://www.instagram.com/jen_gottlieb/   

TikTok: https://www.tiktok.com/@jen_gottlieb    

Facebook: https://www.facebook.com/Jenleahgottlieb   

Website: https://jengottlieb.com/   

My business: https://www.superconnectormedia.com/    
YouTube: https://www.youtube.com/@jen_gottlieb