How to Choose a Growth Agency in 2019

There are many growth hacking agencies selling growth marketing services.

Choosing a growth hacking agency is not easy.

I am not going to reinvent the wheel saying that there are many professionals you should stay away from out there.

Choosing the right partners for your startup business is a process above all.

This article will teach you everything you need to know about choosing a growth hacking agency or outsourced growth team in 2019 (and beyond).

Let’s dive right in.


Chapter 1: What is a Growth Hacking Agency

Chapter 2: When (and where) to Look For a Growth Hacking Agency

Chapter 3: How to Evaluate and What Questions to Ask

Chapter 4: Last Thoughts

Chapter 1: What is a Growth Hacking Agency

Growth hacking is a process of rapid experimentation across channels, stages of the customer journey, product development paths and sales processes that help us identify the most efficient ways to grow a business.

A growth hacker is a person who — according to Sean Ellis is:

“A growth hacker is a person whose true north is growth.”

The truth is that with all these “growth hacking marketing agencies” that provide growth and marketing services out there, it’s difficult to make the right choice for your startup.

How to evaluate their work, what case studies to ask, how to confirm testimonials and other similar questions pop up to your head while in the research process.

Now, think that it’s even more challenging to make the right choice when you are looking for a growth hacking agency—a growth agency that will help you design and implement a growth strategy.

Finding a growth marketing agency for your startup is easy; finding a trustworthy growth partner isn’t.

Especially in a big city like London, where there are many London growth agencies, choosing an agency to work with is difficult.

As a potential client, you have to be extra cautious when searching for or negotiating with a growth agency.

If you are running your startup business without a co-founder, an in-house marketer or someone who can advise you, you have to know everything that you need to make the right choices.

In the next section, I am going to show you when (and where) to look for a growth hacking agency.

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Chapter 2: When (and where) to Look For a Growth Hacking Agency

Let me be clear about it, to start looking for a growth hacking agency or an outsourced growth team, you have to find product-market fit first.

A growth hacking agency will not help you with:

  • Social media
  • Lead generation
  • Content marketing
  • Customer acquisition
  • Email marketing
  • Landing pages
  • Or, marketing automation

A growth hacking agency will use all the above to discover the channels that will help you attain rapid growth and help you understand which channels you should avoid.

Regardless if your business is in B2B or B2C, if it is a mobile app or a SaaS, you will need a growth hacking agency that knows how to use every channel available to drive growth within your organisation.

Through A/B testing and well-designed experiments, a growth hacking agency is your way to test channels, sales tactics and methodologies, that will merely help you:

Discover which channels work for you and which ones are not working.

All these, after you’ve found product-market fit.

You might be wondering: how will I know if I have found the product-market fit?

As Eric Ries put it is his Lean Startup book:

“If you are asking that question, you are probably not there yet.”

But, to give you a more precise answer, again according to Eric Ries, product market fit is:

“The moment when a startup finally finds a widespread set of customers that resonate with its product.”

Do you want to learn where to search for a growth hacking agency?

It’s simple — start with a Google search, then take it to LinkedIn, Facebook and other social networks.

At the same time, you can ask your team members, friends and other startup founders or marketers.

Last but certainly not least, you can ask questions in online communities on Facebook or Reddit where users can give you guidance on growth hacking agencies you can reach out to.

Chapter 3: What Questions to Ask

When searching for a growth hacking agency or outsourced growth team, you have to keep one thing mind: there are no proven growth strategies.

It is of paramount importance to understand that something that worked for someone else, is not necessarily going to work for you.

I am saying this because most growth hacking agency in London–and across Europe–sell the same growth marketing services as if they work for every type of business regardless of the size or the industry.

What you need, is someone to help you implement a growth hacking process — someone that has the know-how and can discover the ways that will help you drive sustainable growth.

So, what are the questions you need to ask a growth hacking marketing agency while in the hiring process?

  1. Ask them if they are willing to water down their growth hacking process for you, if they are, then chances are, they don’t know what they are doing
  2. Ask them if they can guarantee results — if they can, and especially before running any test whatsoever, then they are setting the wrong expectations
  3. Ask for testimonials and jump on calls with previous customers — don’t just take their word for things, do your research
  4. Ask them to share with you one failed case study and ask what did that taught them —  learnings from failed strategies are equally as crucial as learnings from successful strategies
  5. Ask them to share with you a case study where they didn’t do what the client asked for, and it paid out — if they have such a case, it means that they believe in their work and overall process
  6. Ask them if they have experience in your niche — it is always better to choose someone who has a solid understanding of the market you are into

These are questions that no one will teach you.


Well, because these are tough questions that not many are ready to answer and not many are willing to ask.

By asking them though, you are one step closer to finding the right growth hacking agency for your startup business.

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Chapter 4: Last Thoughts

Choosing a growth hacking agency is not easy.

Finding the right growth agency for your business can make the difference and help you attain sustainable growth. 

But, there is

If you want to know how to find best growth marketing agency in London (or in Europe in general), I highly recommend that you take a look at our research first.

As I hope is evident by now, implementing a growth hacking strategy is not the same as executing a marketing strategy —

Thus, you have to be extremely careful while searching for the right growth team.

Big cities like London, Rotterdam, California, Amsterdam, San Fransisco, Chicago and New York have great growth hacking agencies you can work with.

Just make your research, ask the right questions and choose the right partner for your startup business.

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People Who Read This Article Also Read:

  1. Introducing: Vitamin, A Support Program for Tech Founders & CEOs
  2. Why we Pivoted From Growth Hacking to Product Marketing and PMF (and Why You Should Too)
  3. Growth Bootcamp: How It All Started, And What’s Next

About the Author: Aggelos M

Aggelos M
I have over 8 years experience in Digital and Growth marketing. Currently, running Growth Sandwich, a London based Product Growth Lab. Before turning in Growth Marketing and Product Growth, I had the chance to pass by head marketing and head digital positions in Athens and London, work with numerous tech startups but also build and run companies. In my spare time, I am consulting ambitious startups about their Growth and Business strategy.