Reading · Choosing an agency

How to choose a performance marketing agency

6 min read

Pick the agency whose results you can actually verify, that keeps creative and media on one team, and that will name a single number it answers to. Ask for case studies with real figures, find out who touches your account day to day, and read the contract for lock-ins before you sign. Almost everything else is packaging.

A founder we now work with came to us after a bad year. His last agency sent a beautiful monthly deck full of reach and impressions, all of it climbing, none of it turning into sales. He had signed a twelve-month contract on the strength of a pitch, and by month three he knew, but he was stuck. That story is common enough that it is worth writing down how to avoid it.

Start with proof, not the pitch

Good agencies lead with evidence. Ask to see accounts and results in a category near yours, with real numbers. A logo wall is not proof. If the answer gets vague, that is your answer.

Ask who actually runs your account

The person in the pitch is rarely the person in your ad account. Ask who that will be, how involved they are, and whether the people making your creative sit with the people spending your budget. When those two are split, performance leaks out of the gap.

The questions that settle it

Five usually tell you most of what you need: Can you show real numbers from my category? Who runs the account day to day? What single metric will you be judged on? What is the scope and price, and is there a lock-in? And what would you do in my first ninety days? Plain answers are a good sign. Answers that keep circling back to a long contract are not. See how we run performance marketing and the proof on our case studies.

Key takeaways

Lead your search with verifiable results, not the pitch deck
Find out who actually runs your account, and whether creative sits with media
Agree one number the agency will answer to
Read the contract for lock-ins before you sign anything

How to vet them

How to choose an agency, step by step.

Five checks separate a real partner from a good pitch.

Ask for proof

Real numbers from your category.

Meet the real team

Who actually runs your account.

Agree the metric

One number they answer to.

Check the contract

Scope, price and any lock-in.

Start small

A measurable first engagement.

Frequently asked questions

What is a fair contract length?

A short first term or a rolling monthly deal is healthy. A long lock-in before you have seen results just moves all the risk onto you.

Should creative and media be the same agency?

Usually yes. Creative decides how media performs, so splitting them tends to slow things down and blur who is responsible when results dip.

What number should the agency own?

Whatever maps to your money: cost per qualified lead, return on ad spend, new customers. If they want to be judged on reach, keep looking.

How much should I pay?

It depends on scope and spend, but be wary of both bargain retainers and premium prices with no proof. Tie the fee to a clear scope and outcomes.

How soon should I expect results?

Some channels move in weeks, others compound over months. A good agency tells you which is which instead of promising instant miracles.

What are the biggest red flags?

Long lock-ins before results, vanity-metric reporting, split creative and media vendors, and guarantees of fixed leads or rankings that nobody honest can make.

In-house team or agency?

If you have the volume and can hire senior people, in-house can work. Most growing brands move faster with an agency first, then bring pieces in-house.

How do I compare two agencies fairly?

Give them the same brief and the same questions, and compare the specificity of their answers and proof, not the polish of the deck.

Do I need one agency for everything?

Not necessarily, but one team owning the funnel usually beats stitching specialists together, because accountability stays in one place.

What should the first 90 days look like?

A clear plan: fix tracking, sort account structure, ship fresh creative, and set the metric you will both watch. Ask for it before you sign.

How do I start with Blue Ocean?

Start with a free growth audit. A senior strategist reads your numbers and tells you where the next win is, before you commit to anything.