Cave Shake is a healthy, vegan, and keto-friendly meal replacement shake founded by Billie Cavallaro and Holly Heath in 2015. The product was designed as a delicious, on-the-go alternative for those following a ketogenic diet or seeking a dairy-free, plant-based shake.
With the increasing popularity of low-carb and high-fat diets, Cave Shake quickly gained a dedicated customer base.
However, it was their appearance on Season 10 of Shark Tank in October 2018 that truly catapulted them into the mainstream.
The founders pitched their business to the panel of Sharks, hoping to secure an investment that would help them scale production and expand distribution.
Shark Tank Appearance and Deal with Charles Barkley
On Shark Tank, Billie Cavallaro and Holly Heath initially sought $250,000 in exchange for 10% equity, valuing the company at $2.5 million. While the product intrigued the Sharks, there were concerns about the valuation.
Ultimately, NBA legend and entrepreneur Charles Barkley saw the potential in Cave Shake and offered them $250,000 for 20% equity. This adjusted the company’s post-deal valuation to $1.25 million, a 50% reduction from their original estimate.
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Despite the lower valuation, the partnership with Barkley proved beneficial. His investment provided financial support and business expertise, helping Cave Shake expand its brand presence and distribution.
Rebranding to Space Shake
Following their Shark Tank success, Cave Shake underwent a rebranding process and is now known as Space Shake.
The new branding helped the company appeal to a wider audience while maintaining its core mission of providing a nutritious, keto-friendly meal replacement.
Space Shake products are now available through multiple channels, including:
- The official Space Shake website
- Amazon
- Various health and food stores across the U.S.
This expansion in availability has been a key factor in the company’s continued financial growth.
Net Worth
As of 2025, Cave Shake (now Space Shake) has a net worth of $10 million. The company has consistently maintained this valuation over the past few years, showcasing strong financial stability and continued consumer demand.
Annual Revenue and Profits
The company generates approximately $3 million in annual revenue (as of 2023). While exact profit margins have not been disclosed, the steady revenue growth suggests that Space Shake remains a profitable and sustainable business.
The Founders: Billie Cavallaro and Holly Heath
Cave Shake was co-founded by Billie Cavallaro and Holly Heath, two friends who combined their skills and knowledge to create an innovative product.
- Holly Heath comes from a culinary background, bringing expertise in food and beverage innovation.
- Billie Cavallaro has a business-oriented background, helping with strategy, marketing, and growth.
Together, they created a unique, plant-based keto shake that catered to a growing market of health-conscious consumers.
While their personal net worths remain undisclosed, their financial success is closely tied to the company. Since Cave Shake/Space Shake is worth $10 million, it is likely that both founders have accumulated significant wealth from the business.
Factors Behind Cave Shake’s Success
Several factors have contributed to the success of Cave Shake (now Space Shake):
Growing Demand for Keto and Vegan Products
The keto diet has become increasingly popular over the years, with many consumers looking for low-carb, high-fat alternatives.
Additionally, the vegan movement has gained significant traction, with more people seeking plant-based nutrition. Cave Shake’s ability to cater to both markets has given it a strong competitive edge.
Shark Tank Exposure and Investment
Their Shark Tank appearance provided massive exposure and introduced them to millions of potential customers. The partnership with Charles Barkley added credibility and financial backing, helping them scale operations.
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Rebranding and Smart Marketing
The transition from Cave Shake to Space Shake allowed the company to refresh its branding and appeal to a broader audience.
Their strategic marketing efforts on social media and e-commerce platforms have played a key role in their success.
Expanding Retail Presence
Initially available only through limited channels, Space Shake is now sold through:
- Their official website
- Amazon
- Health and wellness stores across the U.S.
This widespread availability has contributed to their consistent revenue growth.
