Performance-based marketing for online stores

No results?
Then you pay us nothing.

Google Ads, Meta Ads, email, SEO and CRO, all run on one target: profit. We only earn when you do.

No obligation · 20 minutes · you talk directly to Arturo

  • 9.9 on Kiyoh
  • 100+ companies
  • On average 6 years as a client
DectDirect revenue, Jan–Nov 2025€7.39M

These brands grow with #SEM

  • Royal Swinkels
  • DectDirect
  • Boozyshop
  • Buurman & Buurman
  • Sleepfast
  • Betondingen
  • Barefoot & More
  • VoerOnline
  • LeJean
  • Condoom Anoniem
  • De Duinroos
  • Deurklinkenshop
Kiyoh

9.9/ 10

Average score from 100+ verified reviews on Kiyoh.

Read all reviews
“We've been working with the #SEM team for a number of years now. Very satisfied with their approach and the results. They always stay right on top of new developments. Communication is always top-notch!”
Teun★★★★★ Verified by Kiyoh
Translated from Dutch
“We've been working with these people for 10 years already!”
Dirk★★★★★ Verified by Kiyoh
Translated from Dutch
“They know how to make my website and orders soar to great heights.”
Paul★★★★★ Verified by Kiyoh
Translated from Dutch

Do you know exactly what share of your revenue marketing can cost?

Most agencies optimize for clicks, reach or a separate ROAS per channel. We optimize for what's left on the bottom line. One target, one budget, every channel in one system.

In 30 seconds

How our performance-based model works

  1. 1

    We set your target ROAS together

    Based on your margins, we know upfront exactly when marketing starts making you money.

  2. 2

    We run and optimize

    We manage your Google Ads, Meta Ads and/or email marketing. You see every change in Monday.com.

  3. 3

    We only invoice once it pays off

    Only after your ad spend and our fee have been earned back. Miss your target ROAS? Then you pay us nothing.

Why we work this way

A marketing partner should work harder than an invoice.

Our reward depends on your results. If your store doesn't grow, we don't earn either.

  • Same interests

    An agency that bills by the hour gets paid even when nothing works. We don't. So we want exactly what you want: profitable growth.

  • On your side of the table

    We think along on every strategic decision, from product range and margins to new markets. Not as a vendor, but as a partner.

Real results, not showcase stories.

This is what happens when data, AI and a focus on profit come together. All of these stores grow with MAX e-commerce.

Curious what this could mean for your store?

We don't say it.
They do.

  • Sleepfast

    “This went so well that a year later I wanted to add another site (www.sleepfast.nl). (…) the results they're getting! Unbelievably good!”

    ★★★★★ ✓ Verified by Kiyoh Translated from Dutch
  • ShoeSupply

    “Since we started working with #SEM, our shop has grown enormously. (…) Always easy to reach, with lightning-fast solutions.”

    ★★★★★ ✓ Verified by Kiyoh Translated from Dutch
  • VoerOnline

    “Their approach took our online pet store, VoerOnline, to the next level.”

    ★★★★★ ✓ Verified by Kiyoh Translated from Dutch

From first click to loyal customer.
One system.

Every stage of your funnel has its own job. We make the channels work toward the same goal, instead of fighting over who gets credit for the sale. Click a channel to see what we do and why.

  1. 01

    Attract

    Bring in the right visitors

    Growth starts with new customers. But not every visitor is worth the same: we buy reach based on margin, not volume.

  2. 02

    Convert

    Turn visitors into buyers

    Every extra percent of conversion makes all your channels more profitable at once. That's why CRO lives in the same system as your ads.

  3. 03

    Retain

    Bring customers back more often

    You don't have to buy an existing customer twice. Repeat purchases lower your marketing costs as a share of revenue.

01 · Attract

01Google Ads

What we do
Search, Shopping and Performance Max, with a product feed that optimizes for margin, not just revenue.
Why it matters
You reach people who are already searching for what you sell. It's the shortest path to an order.
What we optimize for
Revenue and profit per product group, not the number of clicks.
Why we think this way

Separate channels optimize their own numbers. We optimize your profit.

  • One targetEvery channel steers on what share of your revenue marketing can cost.
  • No double countingFor each channel, you see which source every conversion comes from.
  • Clear every monthAll your marketing costs, including our fee, as a % of revenue.
  • We're a partner of:
  • Shopify
  • Lightspeed eCom
  • Reloadify
  • Meta
  • Google
  • Channable
  • TAGGRS
What you get · Growth call Example
Growth call · 00:00
Store owner

“We're growing, but I don't know which channel actually makes a profit.”

  • Goals
  • Products
  • Current channels
  • Margins
  • Bottlenecks
  • Ambitions

Choose how we work together.

Always results-driven. You decide how much you hand over.

For stores that are serious about scaling

MAX e-commerce

One full-funnel system. Every channel runs on one target, with a fixed percentage of your revenue as the marketing budget.

  • Google Ads, Meta Ads, Microsoft Ads, SEO, email marketing and CRO
  • Hands-off: we take care of it, you focus on your business
  • Quarterly goals, tracked together every month
  • No billable hours: we keep going until the results are there
  • An update in Monday.com with every change

A good fit if you want to hand over every channel and steer on one number: what marketing costs you as a % of revenue.

Explore MAX e-commerce →
With a ROAS guarantee

Performance-based

We only invoice once both your ad spend and our fee have been earned back. The risk is ours.

  • For Google Ads, Meta Ads and/or email marketing
  • Set your target ROAS together upfront
  • Miss it? Then you pay us nothing

A good fit if you want to grow with Google Ads, Meta Ads or email marketing without carrying the risk yourself.

Prefer to work month to month? That's fine too.

Many clients choose a monthly plan because it feels more comfortable. No problem for us: we always put together an offer that fits you, and you know we go for the best result every single month. And still, clients stay with us 6 years on average.

Discuss what fits you →

No interns.
Real data nerds.

There's no room for interns here. We have to deliver the best results for our clients every month, so only experienced specialists work on your store. A team of 15 people, based in the Netherlands en Spain.

  • Jessica of #SEM

    Jessica

  • Roy of #SEM

    Roy

  • Corné of #SEM

    Corné

  • +12 colleagues

    The whole team

    Based in the Netherlands and Spain

Meet the team behind your growth

No sales pitch: you talk directly to the people who work on your store.

No obligation · 20 minutes · ★ 9.9 on Kiyoh

Frequently asked questions

Thinking of working with us? Read this first.

There's no shortage of marketing agencies, or promises. We don't believe in smooth talk, but in results, transparency and clear choices. Below, we answer the questions that really matter before you work with us.

Book your growth call →
★★★★★ Verified by Kiyoh
“#SEM is a clear, straightforward and transparent marketing agency. They do what they promise, definitely recommended. (…)”
Wouter 9.9 from 100+ reviews →
Translated from Dutch
What happens in the growth call?

You talk directly to Arturo Hamel, CEO of #SEM. In 20 minutes, we look at your margins, your channels and where the growth is. You'll get a first idea of your target ROAS and an honest answer on whether we're a good fit. We're selective and work with a limited number of stores. If it's not a fit, we'd rather say so upfront than later. The call is free and comes with no obligation.

What does performance-based mean at #SEM?

You only pay once campaigns actually deliver. We agree on a target ROAS upfront that covers both your ad spend and our fee. If we don't hit it, you don't pay our fee.

When does performance-based marketing make sense?

When you're done with agencies that send invoices but not results. Whether you want more return from existing campaigns or want to scale without big risk, this model works as soon as there's room for profitable growth.

Who is this model for?

For online stores selling products with proven demand. And for entrepreneurs looking for a partner with the same interests, instead of an agency that mostly bills hours. If it's not a fit, we'd rather say so upfront.

What do you specialize in?

We specialize in scaling online stores profitably across every online channel. Because we know what works, we dare to work in a way most agencies stay well away from.

Do you offer a guarantee?

Yes. That's why we work on a performance-based model. We agree on a target ROAS upfront. If we don't hit it, you don't pay our fee. Simply put: we only earn when you do.