Testimonials
What founders and marketers say
“Theo has a great understanding of growth on both a strategic and operational level. Theo helped set up processes, built useful playbooks, and trained team members during a period of rapid growth at Republic. Analytical, reliable, and easy to work with, Theo helped improve some of our key marketing KPIs and set up a strong foundation for us to build on.”

Nick Marshansky
Chief Marketing Officer, Republic
“Whatever marketing or growth challenge I'm facing, Theo is the person I turn to - whether it's building a B2B go-to-market, embedding a new CRM, optimising onboarding, picking the latest AI MarTech tools, setting up campaigns or coaching founders. Since we first worked together in 2018, he's played a massive role in helping scale the startups I've worked for and advising founders I've worked with on building, launching and growing new products effectively. He explains complex topics with clarity, cuts through complexity, shares incredible advice on techniques and tools, and does everything with great dedication and thoughtfulness. I don't know anyone with his level of knowledge and ability in growth marketing, and I trust him 100%. Total pro.”

Ed Halliday
Future Faculty
“Theo is the rare type of marketer who blends the theory with the strategy with the execution. I learnt more in an hour with Theo than I had in the past 6 months of learning on my own. Theo has the ability to come into your business, identify a problem and put solutions in place immediately. I have absolutely no hesitation recommending Theo. Work with him as fast as you can!”

Kirien Sangha
Product, Meta
“We had some strong initial growth and were looking for a partner to help us scale a new customer acquisition channel. Theo got our campaigns up quickly and were diligent in testing new creative, messaging and ad formats. They've helped to drive not just leads but meaningful pipeline and revenue for Valos. They understand B2B SaaS growth and what moves the needle. Highly recommend.”

Alex Kountourides
CEO, Valos
“Theo was a pivotal part of building and expanding our marketing efforts at Regal Gentleman, introducing us to real-world ways to analyse our e-commerce data, know what tests we need to make and get a better grip of how to fundamentally increase our sales. For the one year we worked together, I can safely say we have come out as a better business, but also better marketers who better understand how to maximise our audience and conversions.”

Josh Blackburn
Co-Founder, Regal Gentleman
“Theo has helped create a really strong growth and learning culture at acasa. He worked to drive more relevant traffic for us, improve our conversion funnels and reduce our CPA.”

Nick Katz
CEO, acasa
“We have been exploring different avenues to increase the effectiveness of our onboarding in order to ensure that users reach their first AHA moment and continue to be excited about using our platform. Theo did a fantastic job auditing our onboarding flow and made actionable recommendations to improve it. Always an absolute joy to work with him and I can not recommend enough the value he adds.”

Lenny Leeman
CEO, Greenspark
“We had just revamped our onboarding flow and got Theo to take a look at it. He gave a very detailed review and my team were amazed by the level of depth in the insights.”

Luca Micheli
Founder, Customerly
“Theo identified some great growth opportunities for us. We are now experimenting more effectively and talking to our customers more. Theo provided lots of value for Shoobs.”

Louise Broni-Mensah
Founder, Shoobs (YC W15)
“We were testing on a number of different channels without clear direction. After working together with Theo, we had a better picture of what to focus on, what messaging would work for our audience and what next steps to take.”

Alex Chumbley
Co-Founder, Fable (YC W21)
“Theo worked closely with our growth team and implemented a strong experiment framework, which we are now working from. The structured approach and great energy really helped to push our team in the right direction.”

Mattis Curth
Co-Founder, Artland
“We have worked together on multiple startups over the years, I trust and recommend him when it comes to growth.”

Leo Galley
“Theo is not just smart and analytical, but a great listener and fun to talk to. He gave me ideas on my onboarding process, plus helped me get the most out of my data in Mixpanel. I highly recommend talking to him in case of any issue related to onboarding or product in general for both B2B and B2C, but he has a lot of experience in growth in general.”

David Deutsch
Founder, Foodabi
“I came to Theo wanting to improve our onboarding flow. He did a full teardown with a ton of actionable feedback. Lots of great takeaways I'm excited to implement.”

Max Fram-Schwartz
Co-founder, Glimpse
“We all really enjoyed our internal growth workshop with Theo and it's really helped us focus on what needs to be done in the here and now, with clear actions.”

Louise Weiss
Founder and CEO, Ogma
“Theo is at the top of his game when it comes to growth marketing, and was able to provide some really valuable feedback into how I should be structuring my growth strategy.”

Sohaib
Founder, &facts
“Theo's workshop was the best session on growth I've done so far.”

Alex Birtles
CEO, In Good Company
“Theo delivered an absolutely fantastic training session and we received such great feedback from our ventures about it.”

Natasha Triay
Head of Accelerator, London Met University
“Theo took a methodical approach to our account. They communicated clearly, delivered detailed reports, and ran experiments across creative and audiences that gave us useful insights for our Meta strategy.”

Jakub Dvořák
CEO, Adam
“Theo has a clear understanding of early stage growth. Theo does everything, from jumping on customer development calls, setting up initial tests and diving into analytics. I would recommend Theo and Skyamo to companies struggling to grow, and need an external boost.”

Peter Ramsey
Now founder of Built for Mars