How marketing agencies get clients

Why agencies are bad at selling themselves

The irony writes itself: an agency spends every billable hour generating leads for clients, then has nothing left over for its own pipeline. The team that would run new-business outreach is the same team already booked on client work, so the agency's own growth gets whatever scraps of time survive the week.

I've watched this exact pattern at agencies that are genuinely excellent at their craft. Great creative, great media buying, and a founder still doing all new business personally because nobody else has the bandwidth.

The lead generation channels that actually work

Referrals are the default and they're real, but they run on somebody else's schedule. A great client mentions you in a conversation you weren't part of, and a lead shows up. Useful, but not something you can plan a quarter around.

Case studies and content build authority that compounds, and they're worth doing regardless. The catch is the compounding part takes months before it shows up as a real number on a pipeline report, which is a long runway if this quarter's growth already needs solving.

Outbound: the lever most agencies skip

Outbound is the only channel on this list an agency can start using this week and have meetings booked the same week. It also happens to be the one most agencies never turn on for themselves, for the exact reason in the section above: no spare capacity.

The one thing that has to be true for it to work: it can't read like the same generic template your own clients get pitched by three other vendors every day. An agency buyer can smell a form-letter cold email from a mile off, because they've probably written a few themselves.

Here's what that second row looks like in practice for an ad agency: pull the list of agencies you actually want as clients, then check the public ad libraries (Meta, Google) for what each one is running right now for its own clients. The email opens with the specific campaign, not "we noticed you do marketing." A prospect can tell in one sentence whether you looked at their business or copy-pasted their industry into a template.

You choose exactly who you talk to

This is the part that gets undersold, and it's the real argument against pouring everything into ads. With ads you write messaging that attracts the right person and then you hope. Targeting gets you close, the creative does some filtering, and lead quality is still a question you answer after the money is spent.

Outbound inverts that. If the client you want is a CMO at a company doing over $5M in one specific industry, you can build that exact list in minutes and email those people and nobody else. No bidding, no hoping, no paying to find out.

The flip side is that precision is not optional. A sloppy list is the whole campaign, because you are choosing every single person who hears from you. Get the industry, the company size and the job title right and average copy still works. Get them wrong and great copy lands in front of people who were never going to buy.

It also means you control the tap. We run our own outbound at Grow Surely exactly the way we run it for a client, because we are one: around 10,000 emails a day, which books us about 100 calls a month. When the sales team wants more we turn it up, and when the calendar is full we turn it down. No other channel lets you do that on a week's notice.

Case study matching is the agency's unfair advantage

If you have case studies across a few industries, you already own the best cold email angle there is. You match the case study to the prospect.

You worked with a competitor of theirs. You got that competitor a result. You are emailing someone who wants that result and who recognises the name. That is relevance, social proof and a reason to reply, all in three lines, and it needs no clever writing to work.

The more industries you have proof in, the more versions of this email you can run at once. An agency with four case studies in four verticals is really running four campaigns, each one aimed at people who already compete with somebody you have results for.

The signals worth building a list around

A list of job titles at the right company size works. A list built on a trigger works better, because the trigger tells you they are already in motion.

• They just hired a marketing director or a CMO. Somebody new has a budget, a mandate and ninety days to show something. They are actively looking for help in a way the same company was not two months ago.
• They are actively spending on Meta or Google ads. Running ads is a company telling you out loud that it is trying to grow through marketing and already pays for it. You are not selling them on the category, only on you.

Both of those are checkable before you send anything, which is the point. You are not guessing who might be interested, you are reading who is already doing the thing.

Cold email, not cold calling or LinkedIn

Outbound is three channels, and for an agency doing this alongside client work they are not close.

Cold calling works, and it is labour intensive in a way that makes it the most expensive option by a distance. Somebody has to sit there and dial, every day, forever. For an agency with no spare capacity that is the exact constraint you started with.

LinkedIn caps out on volume. You can send roughly twenty connection requests a day, a fraction get accepted, and a fraction of those reply. Do that arithmetic and it does not add up to a pipeline, whatever effort goes in.

Cold email is the one that scales. With the domains warmed properly, a sending setup can run in the thousands of emails a day, and that volume is what turns a channel into a business. The catch is in the word "properly": deliverability is its own discipline, and sending at volume without knowing it is how agencies burn their domain in a fortnight. That is a whole subject of its own, and it is the thing to get right before you touch volume.

Sending-volume figures here are operator experience, ours and other practitioners', not published or independently tested numbers.

Going upmarket means leading with value

Most agencies want bigger clients, and bigger clients are pitched constantly. A business doing over $10M a year hears from somebody like you every week, so "can we book a call" is not an offer, it is noise.

The way through is to give something before you ask for anything, and the bigger the target the more real that thing has to be.

• A free audit of the thing you do. An SEO agency sends an SEO audit.
• A competitor analysis, written for them, naming their actual competitors.
• A short roadmap for the first ninety days.
• An article you wrote for them, not a link to one you wrote for yourself.
• A personalised Loom walking through what you found.

This is exactly why our own free pilot exists. We want agencies in the $1M to $3M range and up, that band gets pitched harder than anyone, so we lead by running the campaign and booking the meetings before anybody pays us. It is the same move we are describing, pointed at ourselves.

And the inverse holds: if you sell to small or local businesses, you do not need any of this. Go straight for the call. The value-first work scales with how far upmarket you are reaching, and doing it for a buyer who did not need it is just slower.

Real numbers from real agency clients

Not composite averages, actual accounts.

AdLeverage is a full-service agency - the same position as anyone reading this, generating leads for their own clients all day and needing a channel that didn't eat into that time.

Build it in-house or bring in a partner

I'd outsource first, always, when the question is still "does outbound even work for us." Hiring someone and spending a quarter teaching them your positioning before you know the channel converts is the expensive way to find out.

Once a partner proves the math, hiring in-house to own it long-term is a reasonable next step. Skipping straight to the hire is how agencies end up with a $70K salary and no proof it was ever going to work.