We partner with startups to turn them into customer obsessed builders of the future.


This is the future of your growth

We work at the intersection of product, data and marketing to strategise, execute, measure & optimise growth programmes.


Our customer obsessed methodology

Each of our strategies start with your customers. And our data-driven approach enables us to continuously improve in response to them.


Partner with us, and we will help you:

  • Get customer obsessed before you start your MVP

  • Validate your ideas

  • Develop a brand that your audience will love

  • Translate product benefits into persuasive copy

  • Strategise & execute high-ROI marketing campaigns

  • Track and visualise marketing metrics

  • Uncover game-changing insights from your data

  • Optimise every stage of your funnel

The best thing about Zealous is that they are very approachable, do their homework and can tell you what will tick at the very first meeting.

James also made it a point to send me detailed working notes and followed up on the progress made soon after. I highly recommend their services to anyone that needs it.
— Neethu Stephen - Evalua8 Corp - Management consulting

We dramatically improved ExpenseIn's CPA and marketing ROI.


ExpenseIn is a software as a service for businesses who need an easier way to manage expenses.

We worked closely with their team to develop and execute a strategy that helped them to reach the right audience and increase their conversion rate.

We worked on:

  • Audience research
  • Copywriting
  • Website design & development
  • Paid Ads
  • Ongoing solutions in response to evolving customer needs

The result is a responsive site that intertwines their existing brand identity and compelling content, with focused calls to action. And it was launched in less than six weeks.


But even more importantly this collaboration has resulted in vast improvements to ExpenseIn's cost per acquisition, driving the ROI of their marketing and proving to investors that ExpenseIn is a serious opportunity.


Increase in positive interactions

Increase in trial and demo conversion rate

Increase in organic search traffic

We worked closely with James from Zealous Digital throughout the development process. He readily considered our needs and suggestions, while applying his own expertise to amplify impact.

This resulted in a stunning site that projects our values in a way that every member of our team loves.

We look forward to working with Zealous Digital again in future projects.
— Emma Dawson - Marketing Manager at ExpenseIn

Strategise with a strategist:
Get started with a free 1-on-1 growth hacking session.

I'm James Phillips King, founder of Zealous Digital and chief strategist.

I'd like to offer you a free 1-on-1 growth hacking session.  

I'll offer you advice, tactics and tests to try that will help surmount your top barriers to growth.

Expect one hour of intense value creation, tailored to your startup goals.

I had a meeting with James and he was really helpful. There were no pushy sales during our meeting, he let his professionalism and knowledge do the talking.

Great knowledge and talks in a way that makes sense.
— Ross Okoye - Ages Apparel - An African inspired fashion brand

You're going to have a big, but incredibly useful, to-do list no matter what stage your business is at! 


Reserve your free growth hacking session.

Now that you know a bit about us, I'd love to have a few details about you. But keep it simple for now.

In about a tweet, give me an introduction to you, your business and your purpose.

Don't worry, we won't share your information.



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