Make Growth Your Core Capability
We help leaders unlock more growth from their marketing, or scale by launching a new product or market.
Every project is designed to fuel sustainable growth by building in-house capabilities and a future-fit growth engine, leaving you with a culture where people and performance thrive.
Together, we’ll make growth your core capability through fractional leadership, go-to-market strategy, and delivered growth consultancy—rebuilt for now.
Build Your Growth Engine
We help ambitious eCommerce and tech brands design and optimise the systems that drive sustainable growth.
Whether you're launching a new product, entering a new market, or scaling a venture, we work with you to build a Growth Engine that delivers—built around clear strategies, repeatable systems, and capabilities within your team.
We’re a passion-driven, boutique growth partner based in London. Over the past 7 years, we’ve helped 50+ brands unlock smarter, more sustainable growth. Led by Siân Allmark—Growth Leader and founder—TFM brings energy, empathy, and strategic rigour to your business.
Together, we’ll build the momentum your brand deserves—and the culture where people and performance thrive.
Build Your Growth Engine
We help ambitious eCommerce and tech brands design and optimise the systems that drive sustainable growth.
Whether you're launching a new product, entering a new market, or scaling a venture, we work with you to build a Growth Engine that delivers—built around clear strategies, repeatable systems, and capabilities within your team.
We’re a passion-driven, boutique growth partner based in London. Over the past 7 years, we’ve helped 50+ brands unlock smarter, more sustainable growth. Led by Siân Allmark—Growth Leader and founder—TFM brings energy, empathy, and strategic rigour to your business.
Together, we’ll build the momentum your brand deserves—and the culture where people and performance thrive.
Build Capability, Not Dependency
We focus on building marketing and growth capabilities that you own, not outsource.
See the whole system
From how your brand’s landing to how your team works and what your customers need – we build a clear view of your growth drivers and blockers, surfacing the opportunities that matter most.
Growth that Pays Back
Our work connects directly to your P&L, ensuring growth strategies stack up financially, and you grow sustainably.
Built for Now
Things move fast. We bring real-world-tested strategies and AI, tech-enabled systems that cut busywork and build momentum.
Build Capability, Not Dependency
We focus on building marketing and growth capabilities that you own, not outsource.
See the whole system
From how your brand’s landing to how your team works and what your customers need – we build a clear view of your growth drivers and blockers, surfacing the opportunities that matter most.
Growth that Pays Back
Our work connects directly to your P&L, ensuring growth strategies stack up financially, and you grow sustainably.
Built for Now
Things move fast. We bring real-world-tested strategies and AI, tech-enabled systems that cut busywork and build momentum.
Maddy Morgan, Head of eCommerce at Camden Town Brewery
“Working with Siân and her team was a real game changer for Camden Town Brewery. Her knowledge of digital is unparalleled and she is fantastic at taking a holistic view of your total business. The progress we made in such a short space of time was incredible to see and went beyond our expectations.”
Growth Strategy Services
Make Growth Your Strongest Capability
Together, we’ll build a future-fit growth engine that scales, and a culture where people and performance thrive.
Go-to-Market Strategy and Activation
Launch with Clarity, Pace and Precision
We plan and deliver high-impact go-to-market strategies for new products, markets, and ventures—helping ambitious businesses launch with confidence and clarity.
Fractional Services
Heavy-Weight Digital Leadership, Without the Financial Load
All the benefits of an in-house leader without the headcount or hassle. Our fractional CMOs and Heads of Growth are plug-and-play leaders that integrate seamlessly into your team, providing flexible, high-impact leadership to get your business growing.
Paid Media Growth Case Study
Growing Global Culinary Experiences Marketplace Eatwith
+42% total DTC revenue growth
+166% Paid Social revenue
+23% Paid Search revenue
Eatwith is a global leader in culinary experiences, with 5000+ hosts bringing people together around dining tables and food activities in over 130 countries.
Learn HoweCommerce Growth Case Study
Growth Acceleration for Camden Town Brewery
Camden Town Brewery is a high-growth challenger brand renowned for its wide range of beers, unique flavour combinations, and fresh approach to craft beer.
"Everything we do at Fifth Mark is designed to help you exceed your digital growth potential."
Meet Founder Siân >Get the latest growth intelligence, tools, and frameworks at The Fifth Mark Blog.
Let's Talk Growth