Home / Agencies / The 13 Best Growth Hacking Agencies in London + Our Top Pick

The 13 Best Growth Hacking Agencies in London + Our Top Pick

Article originally published in May 2022 by Stuart Brameld. Most recent update in April 2024.

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This information is correct as of September 2023. Growth Method has made every attempt to ensure the accuracy and reliability of the information provided.

How did we compile this growth hacking agency list?

This agency list is the result of 3 main sources:

  1. Growth hacking agencies we know or have worked with
  2. Growth hacking agencies recommended by others we know or have worked with
  3. Online searches for growth hacking agencies
Search result for "growth marketing agency london"
Search for “growth marketing agency london”

Long story short, we’ve done the hard work for you in helping you find the right growth hacking agency for you.

Who are we, and why trust us?

Growth Method is a growth marketing platform designed for experiment-led and data-driven marketers. Our software helps agencies and brands execute their growth strategies.

Given the nature of the platform and our focus on growth, we are frequently interacting with agencies. Additionally, having spent 10 years in the marketing industry, we know a good agency when we see one.

What to look for in a good London-based growth hacking agency?

Here are our top recommendations of what to look for in a good London growth hacking agency:

  1. Growth marketing is a process, so you want an agency that understands the process and the culture that is required to be successful. The emphasis should be on strategy over tactics.
  2. Be cautious of agencies that were previously more general digital marketing agencies, or that have specialisms in a particular area (such as paid advertising, or search) and that have rebranded as a growth marketing specialist in the last few years.
  3. Ensure the growth hacking agency works with companies like yours, both in terms of customer type (B2B or B2C), and preferably industry as well. B2B and B2C growth require very different skillsets and approaches.
  4. A good growth hacking agency will have typically used their experience to develop a bespoke growth process for new clients. Ask them about it, and avoid anyone that appears to have a “one size fits all” approach.

The best growth hacking agencies in London

In our opinion, the below are the best 13 growth hacking agencies in London.

1. Ascendant

“Our team of senior growth specialists are highly experienced in digital marketing, go-to-market strategy, communications, customer experience design, event management and technology. We plan meticulously, execute rapidly, measure obsessively and optimise continuously to provide our clients with a service that achieves their objectives, effectively and transparently.”

About Ascendant:

  • Website: https://ascendant.uk/
  • Address: Ascendant, The Ministry, 79-81 Borough Road, London SE1 1DN
  • HQ Country: UK
  • Specialisms: B2B,Startups,Paid Media,Organic,CRO</a

2. Conversion Rate Experts

“We are the world’s leading agency for conversion rate optimization (CRO)—a term that we coined in 2007. We build amazingly effective webpages, and then we stick our necks on the line by insisting that we carry out scientific A/B tests to verify that we’ve significantly grown our clients’ businesses.

We get great results, which is why we are highly regarded by many of the web’s most sophisticated companies.”

About Conversion Rate Experts:

  • Website: https://conversion-rate-experts.com/
  • Address: Conversion Rate Experts (a Next 15 company), 207 Regent Street, London, W1B 3HH
  • HQ Country: UK,USA
  • Specialisms: CRO,B2B,Enterprise,Startups</a

3. Growth Agency

“We’re your team of data driven marketers & business consultants. We help ambitious companies use data in their marketing strategy and create & execute growth experiments to increase their revenue.

We conduct experiments, analyze the results, and scale the marketing tactics that have generated positive ROI. This approach drastically reduces waste in your media budget. We achieve our goals by aligning people, processes, data and technology. We only take in a limited number of clients per year to ensure a strong long-lasting partnership.”

About Growth Agency:

  • Website: https://www.growthagency.co/
  • Address: The Shard, 24/25, 32 London Bridge St, London SE1 9SG
  • HQ Country: UK,Europe
  • Specialisms: Paid Media,PPC,Content,CRO,Advisory,Execution</a

4. Growth Curve

“Start your growth engine. Acquire new users faster, for less and look good doing it.

Growthcurve is the modern alternative to hiring a full in-house marketing team or a roster of agencies. Our plans let you scale growth marketing resources up or down flexibly making us the most cost-effective way to grow long term.

Your plug and play Growth Marketing team. Use Growthcurve as your full-stack growth marketing department, or as an extension of your internal marketing team.”

About Growth Curve:

  • Website: https://growthcurve.co/
  • Address: 50 Liverpool St, London, EC2M 7PY
  • HQ Country: UK,USA
  • Specialisms: PPC,Paid Media,CRO</a

5. Growth Division

“We Find Scalable Channels to Market For Startups. Our unique growth process and team of marketing experts unlocks exponential growth.”

About Growth Division:

  • Website: https://growth-division.com/
  • Address: 40 Bowling Green Lane, London EC1R 0NE
  • HQ Country: UK
  • Specialisms: Process,Advisory,Execution</a

6. Growth Rocks

“GrowthRocks is a Growth Hacking Marketing Agency that helps startups and well-established companies achieve rapid and sustainable growth.

Growth hacking is data-driven digital (and not only) marketing that uses rapid experimentation and low-budget tactics to determine the most effective ways to grow a business. In growth hacking, paid ads are just the enabler not the main digital strategy.”

About Growth Rocks:

  • Website: https://growthrocks.com/
  • Address: 21, Aylmer Parade, Aylmer Road, London, N2 0AT United Kingdom
  • HQ Country: UK
  • Specialisms: CRO,B2C,B2B</a

7. Growth Shop

“We Are Your Key To Ecommerce Growth. We 10x direct to consumer brands that are currently turning over $5M-$30M.

We understand ecom customers better than anyone. We have leaner processes, deeper product knowledge and more talented marketers.”

About Growth Shop:

  • Website: https://growth.shop/
  • Address: 34-37 Liverpool St, London EC2M 7PP
  • HQ Country: UK
  • Specialisms: Ecommerce,B2C,Consumer</a

8. Kurve

“Kurve is a hybrid agency & consultancy. We support on execution or strategic insight. We work on a monthly retainer or on specific projects.

Rather than squeezing your brief into a fixed team, we build the team tailored to your goals. We have a broad mix of digital marketing experts.”

About Kurve:

  • Website: https://kurve.co.uk/
  • Address: 86-90, Paul Street, London EC2A4NE
  • HQ Country: UK
  • Specialisms: B2B,Paid Media,Organic</a

9. Rock Mission

“We are not just another award-winning agency, we are London’s leading growth hacking agency. We help our clients design and execute brilliant, integrated growth strategies that will take their businesses steps ahead.

Many companies often lack some of the necessary skillset or experience to design and execute growth. We can help with both: we come in as your trusted growth consultants, we align the team’s mindset to focus on new agreed business goals and help you seamlessly execute on them.”

About Rock Mission:

  • Website: https://rockmission.com/
  • Address: Salty Commune, 6 Yorkton St, London E2 8NH
  • HQ Country: UK
  • Specialisms: Email,SEO,Social,Content,CRO</a

10. The Fifth Mark

“Even in a digital age, most digital marketing doesn’t market. Precious data goes to waste, so insights remain unseen. Media is thrown to the wall, hoping it’ll stick. Outlandish fees plummet down black holes. Executions come before directions. Lots of clicks and impressions, but not much traction or result. Digital marketing roulette.

That’s why we chose growth. Our approach to Growth Marketing replaces hope-and-pray with science-and-strategy. It connects user psychology, data analysis, digital marketing and strategy together as a team. That way, insights, ideation and testing create concrete strategies that drive great and greater things. Not wishes. Ways.”

About The Fifth Mark:

11. True Up

“The growth marketing agency. Our skilled team have everything you need to deliver awesome results.

Our paid acquisition, conversion optimisation & data experts have a proven track record of delivering the lowest customer acquisition costs and highest conversion rates.”

About True Up:

  • Website: https://www.trueup.com/
  • Address: TrueUp, 91 Brick Lane, London, E1 6QL
  • HQ Country: UK
  • Specialisms: B2B,Enterprise</a

12. We Scale Startups

“Growth Marketing, Done Right. We’re a Growth Marketing Agency made up of nerdy, creative and enthusiastic individuals focused on helping startups generate predictable, repeatable and scalable growth.

We help startups develop relationships with their customers using digital marketing to increase sales!”

About We Scale Startups:

  • Website: https://www.wescalestartups.com/
  • Address: Unit C, 81 Curtain Rd, Hackney, London EC2A 3AG, United Kingdom
  • HQ Country: UK
  • Specialisms: Startups,Paid Media,PPC,Enterprise</a

13. Zest Digital

“An award-winning growth marketing agency. Grow revenues faster and more predictably, with guaranteed results in 90-days.

The fastest and most complete way to generate new leads and sales to grow your business. All-inclusive growth marketing covering; PPC, SEO, content, and more.”

About Zest Digital:

  • Website: https://www.zestdigital.com/
  • Address: 10 Fitzroy Square, Fitzrovia, London, W1T 5HP
  • HQ Country: UK
  • Specialisms: PPC,SEO,Content</a

Which is the best growth hacking agency in London?

So the question we’re often asked …. if you had to pick one, who would we choose?

This is very much an “it depends” answer but in general Kurve are a great team to work with.

Kurve – Growth Marketing Agency London

Their overall approach is exactly how we think a growth hacking agency in London should operate:

Kurve is a hybrid agency & consultancy. We support on execution or strategic insight. We work on a monthly retainer or on specific projects. Rather than squeezing your brief into a fixed team, we build the team tailored to your goals. We have a broad mix of digital marketing experts. Rather than generalists, we hand-pick specialists. We use a range of robust tools, some are partners and some we’ve built for specific marketing challenges.


In addition to a range of client testimonials throughout the site, they have an impressive list of success stories. They detail their approach for both scale-ups and corporates, and also come highly recommended by our good friends at Growth Mentor.

About Growth Method

Growth Method is the growth platform designed for experiment-led and data-driven marketers.

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