How to Start a Marketing Agency

Most new agencies start the same way.

A website that says “full-service digital marketing.” A logo. A LinkedIn post announcing it.

Then nothing.

Not because the founder isn’t good. Because nobody can say yes to “full-service.”

A dentist can say yes to “more Google reviews.” A shop owner can say yes to “a newsletter that goes out every month.”

So this guide starts narrow. One service. One kind of business. Ten prospects.

The honest part first

Starting an agency is cheap. Keeping one going is the hard part.

Here’s what nobody puts on the course sales page:

• Finding clients is the real job — and it never stops
• Clients leave, often for reasons that have nothing to do with you
• You can’t promise results you don’t control, like rankings or sales
• Every client thinks they’re your only client, and expects an answer today
• The first months are mostly selling, not marketing

None of that is a reason not to start.

It’s a reason to build the selling into your week from day one.

step 1Pick one service you can actually deliver

Not the one that sounds biggest. The one you’ve done before — for an employer, a friend’s business or your own.

A few that small businesses understand right away:

• Google Business Profile and reviews — for local clinics, trades and shops
• Email newsletters — for shops, gyms and restaurants with a customer list
• Paid ads — only if you’ve run ads with real money before
• Website copy and landing pages — for businesses with a site that says nothing
• Social posts — for businesses that haven’t posted in months

Pick one. You can add more later, once someone is paying you for the first.

step 2Pick one kind of business you can reach

A niche isn’t about being fancy. It’s about being findable — and findable by you.

A good first niche passes four tests:

1. 01
   You can find them

   They’re listed on Google Maps or in a public directory.

2. 02
   A new customer is worth a lot to them

   So paying you makes sense.

3. 03
   The gap is visible from outside

   You can see what’s missing before you talk.

4. 04
   You understand their customers

   You know why people choose one over another.

Put the two together and you get a sentence like this:

“I help physical therapy clinics in Columbus get more Google reviews.”

That’s an agency. A prospect can repeat it to their business partner.

step 3Make a first offer someone can say yes to

Don’t open with a 12-month retainer. A stranger won’t sign one.

Open with a small project that has a clear end:

“I’ll clean up your Google profile and set up a review request your front desk sends after each visit. One fixed price. Done in two weeks.”

That’s easy to understand, easy to check and easy to say yes to.

The monthly work comes after — once they’ve seen how you work.

• One problem, fixed — not “a strategy”
• A fixed price and a finish date
• Something they can see when it’s done
• A natural next step that’s monthly

step 4Find your first 10 prospects

Ten is enough to start.

You want real conversations, not a giant list you never get through.

Search Google Maps for your niche and city. Open each listing and each website. Write down what you see:

Easton Spine & Joint is already doing it well. Skip them.

Your list is only the clinics with the gap you fix.

step 5Send the first outreach email

Short. One real detail. One small offer. One easy question.

No “I hope this finds you well.” No list of twelve services.

It names one thing they can check in ten seconds.

Then follow up — on day 3, day 7 and day 14. Most replies come after the first email, not from it.

step 6Deliver the first project like it’s your only one

Your first client is your portfolio, your case study and your first referral.

Run the project the same way every time:

1. 01
   Kickoff

   30 minutes: what they want, who approves, what’s off-limits.

2. 02
   Access

   They add you to their accounts as a user. Never ask for their password.

3. 03
   Before snapshot

   Write down where things stand today, with dates.

4. 04
   Short weekly update

   What you did, what’s next, what you need from them.

5. 05
   A plain-words wrap-up

   What changed, what to keep doing, what you’d do next.

That weekly update is where most solo agencies slip. It’s also where an AI team helps most:

Client work · FridayWorking

Write this week’s update for Olentangy Motion PT from my notes, and find 10 more PT clinics in Dublin and Worthington with the same gap.

Read this week’s notes and the clinic’s Google profile1/1

The update is ready: profile cleaned up, review text live at the front desk, 4 new reviews this week. Next week: reply to every review. Short and plain, in your voice.

Check PT clinics in Dublin and Worthington23/23

9 clinics have the same gap. I added them to your list with a contact for each. Want me to write to them? Nothing goes out until you say so.

PT clinics — Dublin and Worthington.csvSpreadsheet

Tell your agent what to do…

You still check the work. You still talk to the client.

The typing gets done for you.

step 7Price it honestly

There’s no right number we can give you. Anyone who gives you one without knowing your city, niche and skill is guessing.

Here’s how to find yours:

• Work out how many hours the first project really takes — then add a third
• Decide what you need to earn per hour to make this worth it
• Look at what agencies in your niche publish on their own pricing pages
• Ask prospects what they pay now — many will tell you
• Write down what’s included and what isn’t, every time
• Take a deposit before you start

When the first project ends, offer the monthly version.

Keep it simple: a fixed fee for a written list of work, month to month or with short notice.

Promise the work, never the result. “Four posts a week and a monthly report” is a promise you can keep. “Double your patients” isn’t.

step 8The legal basics

Boring, short and worth doing in week one. This is general information, not legal or tax advice.

• If you just start working, the US treats you as a sole proprietorship — the SBA explains the other structures, like an LLC
• Get an EIN straight from the IRS — it’s free, so skip sites that charge for one
• If your net self-employment earnings are $400 or more, you file a tax return — the IRS self-employed page explains it, including quarterly payments
• Sign a short written agreement with every client: the work, the price, the notice period, who owns what
• Follow CAN-SPAM in every cold email: honest subject, who you are, your address, stop when asked

One hour with a local accountant is cheap compared to fixing a mess later.

How one person runs it with an AI team

At the start, you are the whole agency.

That’s fine — if you split the work right:

It asks before the first send. You can make it wait for your OK on every single one.

It won’t take calls or promise anyone anything. Those stay yours.

What to do this week

1. 01
   Write your one sentence

   “I help [kind of business] in [city] with [one thing].”

2. 02
   Make the first offer

   One fixed project, one price, one finish date.

3. 03
   Check 10 businesses

   Only keep the ones with the gap you fix.

4. 04
   Send 10 short emails

   One detail, one offer, one question.

5. 05
   Set up the basics

   EIN, a simple agreement, a business email.

Or hand the list and the emails to your AI team, and spend the week on the offer.

Questions