About Marketer of One.
Marketer of One is a Utlyze site for marketing agency owners who want to grow their profit without growing their headcount.
Why it exists
Profitability tends to fall as agencies get larger, because growth adds management, support and other overhead. In 2025, digital agencies with 50 or more full-time employees averaged 8% of revenue as after-tax profit, while studios with fewer than 10 averaged 19% (Promethean Research).
AI changes that trade. An owner can now train agents on their own craft and grow the client roster without growing the payroll.
Who publishes it
Utlyze builds AI systems for businesses. We have built with AI since ChatGPT launched in November 2022, and more than half of our revenue goes back into research and development.
Marketer of One is part of the Of One network of sites, built on the Of One method at of1.ai.
What we want for you
We build the system with you and teach you to run it. If you ever end the contract, the infrastructure we built for you transfers to you.
James Brady, who founded Utlyze, puts it this way: “Our goal is to build people that can build themselves. When you graduate to being an Of One, our aspiration is complete. The fully realized and empowered self. A force for good in the world.”
Where the numbers come from
Every market number on this site comes from a named source, listed below. The client counts and speeds we describe are what our system is built to do. Your results depend on your services, your clients and how you run it.
| Number on this site | Source | Link |
|---|---|---|
| Average after-tax margin of digital agencies in 2025: 13% overall, 19% with fewer than 10 full-time employees, 8% with 50 or more | Promethean Research, “How Profitable are Digital Agencies?”, April 19, 2026 | prometheanresearch.com ↗ |
| Average turnover at digital agencies was 19% in 2025, about one in five | Promethean Research, “State of Digital Services 2026: An Uneven Return to Form”, February 2026 | research.prometheanresearch.com ↗ |
| About 55% of revenue goes to the cost of doing the work, almost all of it salaries and benefits (a standard split) | Promethean Research, “Digital Agency Industry Report: 2023” | prometheanresearch.com ↗ |
| Replacing an employee can cost from one-half to two times their annual salary, a conservative estimate for U.S. businesses | Gallup, “This Fixable Problem Costs U.S. Businesses $1 Trillion”, March 13, 2019 | gallup.com ↗ |
| 39% of agency leaders say clients expect lower prices because of AI; 43% say margins are shrinking | SoDA, “Agency Outlook Study ’26”, survey fielded Q4 2025, published January 2026 | sodaspeaks.com ↗ |
| People working alone with AI matched two-person teams without it (776 professionals at P&G) | Dell’Acqua and colleagues, NBER Working Paper 33641, April 2025 | nber.org ↗ |
| AI raised speed and quality inside its reach and caused more mistakes outside it | Dell’Acqua and colleagues, “Navigating the Jagged Technological Frontier”, Organization Science, via Harvard Business School | hbs.edu ↗ |
Facts
| Name | Marketer of One |
|---|---|
| Website | marketerofone.com |
| What it does | Agents trained on your briefs, past work and edits carry the drafts and reports, and nothing reaches a client without your yes. |
| Operated by | Utlyze |
| Founder | James Brady |
| Consult | $400 per hour. Five hours at a time, $2,000 per block. 5-hour block · $2,000 minimum. |
| Build | $15,000 a month. Build-with-you coaches · your agents · shared 24/7 on call. Three-month minimum · $45,000 minimum commitment. |
| Method | Of One (of1.ai) |
| Contact | The form at marketerofone.com/start |
| Offer and buying-guide review | October 24, 2026 |
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