Founder · Investor · Operator

Tyk Sullivan

Serial entrepreneur based in Tampa, Florida. Founder of Plutus Capital and NUMEN. Building companies since high school.

Conviction, built into action.

Tyk Sullivan, Tampa-based entrepreneur and founder of Plutus Capital and NUMEN, in a dark studio portrait

Who

Tyk Sullivan is a serial entrepreneur who started his first company as a high-school student in Madison, Wisconsin — a lawn care business that grew to more than 100 clients — and has been building ever since.

What

Today he is the founder of Plutus Capital and NUMEN, a premium supplement brand, with prior ventures across apparel, marketing, e-commerce, and consumer products under TYK INC.

Where

Based in Tampa, Florida. He writes here about business building, brand, markets, and the discipline underneath all of it.

Current Ventures

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Investment

Plutus Capital

A private investment firm founded by Tyk Sullivan, based in Tampa, Florida.

Founder

Consumer · Health

NUMEN

A premium supplement brand built on ingredient transparency and performance. Launching 2026.

Founder

Holding Company

TYK INC.

The holding company for Tyk Sullivan’s ventures, past and present.

Founder & Chairman

Latest Writing

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Brand

Why I’m Building NUMEN

The supplement industry has a trust problem. Here is why I decided to build a premium supplement brand anyway — and the standard it will be held to.

· Brand

Performance

Discipline Is a System, Not a Feeling

Motivation expires. Systems don’t. The operating structure I use to keep training, building, and shipping when I don’t feel like it.

· Performance

Follow the Work

New writing publishes here first. For daily thinking, the conversation continues on X, LinkedIn, and YouTube.

Studio portrait of Tyk Sullivan in a black jacket against a black background