About
Who is Tyk Sullivan?
Tyk Sullivan is a serial entrepreneur based in Tampa, Florida. Founder of Plutus Capital and NUMEN. Starting, operating, and building companies since high school.
Tyk Sullivan started his first company as a high-school student in Madison, Wisconsin: a lawn care business that began with a push mower loaded into the back seat of a Lincoln LS on a sheet of plywood.
Before he graduated, that company — Green Lawn — had grown to more than 100 clients and a team of four. It wasn’t the only one. In the same years he launched Real Carbon Solutions, an early venture producing carbon fiber phone cases and license plate covers, and began a self-taught education in trading and markets that never stopped.
The decade since has been a run of consumer and service businesses: Vigor Strength, a 100% custom cut-and-sew activewear and performance streetwear brand; TYK (Think You Know), a streetwear label; TC Media, a marketing agency founded in 2017 whose projects ranged from e-commerce brands to the board game Goons N Gats; and e-commerce businesses built and sold along the way. He has also served as an advisor and board member to consumer and technology companies.
Today, Tyk is the founder of Plutus Capital, a private investment firm in Tampa, and NUMEN, a premium supplement brand built on ingredient transparency and performance, launching in 2026. His ventures are held under TYK INC.
He writes about what he practices: building businesses, brand and marketing, markets and digital assets, and the discipline that underwrites all of it.
Timeline
Green Lawn & Real Carbon Solutions — Madison, WI
First companies: lawn care grown to 100+ clients with four employees, and a carbon fiber products business. Early trading education begins.
Vigor Strength · TYK · e-commerce
Custom cut-and-sew performance apparel, streetwear, and e-commerce brands built and sold.
TC Media
Marketing agency founded; client work and original products including the board game Goons N Gats.
Plutus Capital · NUMEN · TYK INC. — Tampa, FL
A private investment firm; a premium supplement brand launching 2026; a holding company for the portfolio.
Questions people ask
Who is Tyk Sullivan?
Tyk Sullivan is a serial entrepreneur based in Tampa, Florida. He is the founder of Plutus Capital and NUMEN, a premium supplement brand, and has been starting and building companies since high school in Madison, Wisconsin.
What companies has Tyk Sullivan founded?
Current ventures are Plutus Capital, NUMEN, and TYK INC. Earlier companies span lawn care (Green Lawn), carbon fiber products (Real Carbon Solutions), custom apparel (Vigor Strength), streetwear (TYK — Think You Know), marketing (TC Media), and e-commerce brands.
Where is Tyk Sullivan based?
Tyk Sullivan lives and works in Tampa, Florida. He grew up in Madison, Wisconsin, where he started his first businesses in high school.
What does Tyk Sullivan write about?
Tyk Sullivan writes about business building, brand and marketing, financial markets and digital assets, and the physical and mental discipline behind sustained performance. His writing is published at tyksullivan.com.
Press & media
Approved biographies and downloadable headshots are on the media page. For interviews and podcast invitations, use the contact page — media inquiries get priority.