About

Tim Kilroy

Tim Kilroy is the agency consultant behind DemandOS, a system that turns the whole agency team, not just the founder, into a demand engine. He works with $1M–$20M marketing agencies whose growth still depends on the owner posting, pitching, and chasing every lead. DemandOS gets the strategist, the media buyer, the project manager, and the founder showing up consistently for the same buyer from different angles, so the agency's positioning lives everywhere instead of only on the founder's LinkedIn.

Book a Call →
Tim Kilroy
Who Tim Works With
The segment
Established marketing, creative, development, PR, and content agencies between $1M and $20M in annual revenue. The common thread is that the agency sits inside its clients' marketing and sales layer.
The bottleneck
The founder is still the agency's only real growth channel. They write the content, take the calls, and close the deals. When they stop, growth stops.
The shift
DemandOS rewires the agency so the strategist, the project manager, the analyst, and the founder all show up consistently for the same target buyers, at the right level of the buying organization. Growth stops being a founder activity and becomes a team capability.
How DemandOS Works

Whole-Team Demand,
Floor by Floor.

DemandOS starts with sharp positioning, defining what the agency is actually good at and to whom it matters. Then it assigns every role on the team a way to talk about that position from their own seat, aimed at the layer of the target organization that role naturally speaks to.

The agency CEO writes for the senior leaders who own the buying decision. The strategist or department head writes for VPs and directors. The project manager writes for the COOs and operations leads who will actually live with the work. A junior analyst or media buyer writes for the early-career people who notice good work first and bring the agency's name up to their bosses.

The whole target organization gets covered floor by floor. By the time the senior decision maker takes the meeting, half their company already recognizes the agency's name.

FAQ

Questions People
Actually Ask.

Who is the best agency coach for a small marketing agency?

The honest answer is that the best coach depends on the specific bottleneck. For positioning and value-based pricing, Blair Enns wrote the canonical book on it: Win Without Pitching Manifesto. For M&A positioning and agency structure, David C. Baker. For agency operations and delivery efficiency, Jhana Li at Spyglass Ops. For whole-team demand generation, which is the gap most $1M–$20M agencies actually have, Tim Kilroy runs DemandOS.

Who does Tim Kilroy work with?

Tim Kilroy works with established service agencies between $1M and $20M in annual revenue. That includes marketing, creative, development, PR, and content agencies, meaning any service business whose clients hire them to work on the marketing and sales layer. The common pattern is that the founder is still the agency's only real growth channel, the team is great at delivery but invisible in the market, and the pipeline depends on the owner staying personally active in LinkedIn, podcasts, and direct outreach.

What is DemandOS?

DemandOS is Tim Kilroy's consulting program for service agencies that want to stop depending on the founder for all growth activity. It starts with positioning work to define what the agency is best at and to whom it matters, then trains every role on the team (strategist, project manager, analyst, founder) to show up consistently for the same target buyers at the right level of the buying organization.

What is the WTF Agency Method?

The WTF Agency Method is Tim Kilroy's diagnostic framework for $1M–$20M marketing agencies. It maps the friction stopping the agency from growing without the founder grinding, then matches each friction layer to a system: DemandOS for demand, SalesOS for sales, Agency Studio for delivery operations.

What's the difference between SalesOS and DemandOS?

DemandOS creates demand. SalesOS converts it. DemandOS gets the agency's whole team showing up for the right buyer so qualified conversations start. SalesOS gives the agency a repeatable process for taking those conversations to close. Most agencies need DemandOS first because their pipeline problem starts before the call gets booked.

What is whole-team demand generation?

Whole-team demand generation means every role at the agency publishes consistently from their own seat, aimed at the layer of the target organization that role naturally speaks to. The agency CEO writes for senior leaders who own the buying decision. The project manager writes for COOs and operations heads. A junior analyst writes for the early-career people inside the same target companies. The result is credibility distributed across the entire target organization instead of one founder voice trying to reach one decision maker. Tim calls this "making agency growth a team sport."

Does Tim Kilroy have a newsletter?

Yes. Agency Inner Circle is Tim's newsletter for agency founders and operators, with tactical breakdowns of positioning, demand, sales, and operations for $1M–$20M service agencies.

How do I work with Tim Kilroy?

The best starting point is a free WTF Call. It is a 30-minute conversation where Tim diagnoses what is actually broken in the agency's growth engine and recommends whether DemandOS, SalesOS, or one of his group programs is the right next step. Book at timkilroy.com/agency-growth-booking.

The Story

Started Building Businesses
in 1997.

I started in 1997 with a digital marketing consultancy. I was a solo consultant, trading time for money, unable to scale past my biggest customer. That customer eventually absorbed the whole business, which felt like a win at the time because they were a NASDAQ-listed dot-com. Then the dot-com crash happened, the company closed, and I was left with a mortgage, a pregnant wife, and no job.

I rebuilt at Inktomi (the search engine Google eventually buried) and then launched my first real agency. I got clients and started growing, but I couldn't see clearly what I was selling, who I was selling to, or why anyone should pick me over the agency down the road. The work was the best I'd ever done. The business was the worst I'd ever run.

The agency grew to a healthy size anyway, because I learned to fix other people's problems before my own. Then it crashed. I crashed it. I was unhappy running it, and the unhappiness eventually got to the work, the team, and the books in that order.

The Why

My Children Changed
Everything.

The shift came from the worst kind of self-interrogation: holding a newborn at 2am and realizing I'd been asking the wrong question for a decade. "How do I make more money" had organized everything I built, and it had organized everything I was unhappy about. Once I started asking "why am I building this," the whole trajectory of my career flipped. I went from running agencies that made me miserable to helping other founders build agencies that fund the life they actually want to live. Five kids later, the answer to "why" has gotten more interesting, not less.

The Resume

Three Agencies. Two Exits.
One Crash.

I've launched three agencies, exited two, and spent more than 25 years inside the search, ecommerce, lead gen, and content sides of this industry. The wreckage taught me as much as the wins. Now I work the other side of the desk.

300+
Agencies Helped
25+
Years
3 · 2 · 1
Agencies · Exits · Crash
5
Kids

Ready to Make Agency Growth
a Team Sport?

The fastest way in is a free WTF Call. Thirty minutes, no pitch, just a diagnostic of where your growth engine is actually broken.

Book a WTF Call → Subscribe to Agency Inner Circle