Companies

Built. Operated. Owned.

Every company Tyk Sullivan has founded connects to the same thread: find a real customer, build the product properly, and out-execute. Current ventures first; the record behind them below.

Operating · Tampa, FLFounded by Tyk Sullivan

Plutus Capital

Role: Founder

A private investment firm focused on financial markets and digital assets, based in Tampa, Florida.

Plutus Capital does not offer its services to the general public through this website. Nothing on this site is an offer to sell or a solicitation of an offer to buy any security or investment product.

Launching 2026Founded by Tyk Sullivan

NUMEN

Role: Founder

A premium supplement brand built on ingredient transparency, formulation quality, and performance. No proprietary blends; every ingredient disclosed at its actual dose; third-party tested. Being built in public — the series starts in the writing.

Holding companyFounded by Tyk Sullivan

TYK INC.

Role: Founder & Chairman

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

The record

Earlier ventures.

Companies started, operated, and sold across services, apparel, marketing, and e-commerce — beginning in high school.

Green Lawn

High-school lawn care business in Madison, WI — 100+ clients, four employees, run out of the back seat of a Lincoln LS.

Real Carbon Solutions

Carbon fiber phone cases, license plate covers, and accessories — founded in high school.

Vigor Strength

100% custom cut-and-sew activewear, athleisure, and performance streetwear — custom blends, original patterns, built from the fabric up.

TYK — Think You Know

An independent streetwear label.

TC Media

Marketing agency founded 2017 — client brands, e-commerce, and original products including the board game Goons N Gats.

E-commerce & advisory

Direct-to-consumer brands built and sold, alongside advisory and board roles with consumer and technology companies.

Different industries, same operating beliefs: revenue validates faster than research. Brand is a promise kept repeatedly. Distribution is half the product. The full record — including the lessons paid for in mistakes — is documented in the writing