Podcast
GIAN UK: James Lucas & Caroline van den Bergh, Co-Founders, Lunos
James Lucas & Caroline van den Bergh join Nicole Thomas for a new Give It A Nudge UK episode
About the guests
James Lucas
Co-Founder at Lunos
James Lucas has a career rooted in mobile and digital product development, having worked at Nokia, Vodafone, and a range of digital transformation agencies. After years of consulting with early-stage and growth-stage startups, he co-founded Lunos to give founders a systematic, accessible way to validate their ideas before committing to a full build.
Caroline van den Bergh
Co-Founder at Lunos
Caroline van den Bergh began her career as a developer and moved into UX, marketing, and design before running her own businesses. After leaving Nokia in 2011, she eventually connected with James and co-founded Lunos, building a process and partnership model that helps founders validate digital ideas quickly and affordably, without over-engineering the solution before proving customer demand.
Episode overview
Recorded in London as part of the Give It A Nudge UK series, this episode features James Lucas and Caroline van den Bergh, co-founders of Lunos, a UK-based venture that helps founders validate digital ideas rapidly before spending significant time or money on building. James and Caroline met at Nokia, founded Lunos just before the pandemic, and have developed a proprietary process that takes an idea from hypothesis to market-tested prototype, with or without any technology being built.
The problem: solutionizing before validating
James and Caroline’s founding frustration is one that most founders recognise: the instinct to start building before you’ve confirmed that the problem you’re solving is real, that people experience it, and that they’ll pay to have it fixed. Lunos exists to slow that impulse down systematically, replacing it with a structured process of customer discovery, hypothesis testing, and rapid experimentation.
“Very very quickly you can just jump into the world of solutionizing. You can fall in love with an idea and start building before you really know if anyone cares.”
James Lucas 10:00
The Lunos process
The process starts with an initial workshop that aligns the founders’ current position, where they’re trying to get to, and what assumptions they’re most at risk of getting wrong. From there, Lunos moves into hypothesis creation, experimentation, and iteration, pulling in only the parts of the process that are most relevant to the client’s stage. The goal is always to find the “aha moment”: the point at which a user picks up the product and says, “This is exactly what I needed.” Everything between the start and that moment should be removed.
“What is the aha moment, and how quickly can we get a user there? Every step between the starting point and that moment almost needs to disappear.”
Caroline van den Bergh 25:00
Building a partner ecosystem
Lunos doesn’t try to do everything itself. They’ve built a partner network of development studios, design agencies, branding firms, sales specialists, and funding partners that they bring in at the right point of a client’s journey. Critically, before making any introductions, Lunos onboards each partner into the context and work done so far, so the partner can get to value quickly rather than starting from zero. The aim is for the whole ecosystem to feel like one team rather than a collection of referral relationships.
“Rather than just saying go talk to these guys as a referral, we onboard our partners into everything that’s been done, so they can get to that point of value a lot quicker.”
James Lucas 35:00
Key takeaways
Chapters
0:00Introducing James and Caroline 5:00Careers in mobile and digital: Nokia, Vodafone and beyond 10:00The founding story of Lunos 15:00Why founders rush to build before validating 20:00The Lunos process: hypothesis, experiment, iterate 25:00Finding the aha moment 30:00DIY vs done-with-you models 35:00The partner ecosystem and how it works 39:00Advice for founders and how to get in touch
Mentioned in this episode
Frequently asked questions
What does Lunos do?
Lunos is a UK-based venture that helps founders and businesses validate digital ideas before investing in a full build. Using a structured process of customer discovery, hypothesis testing, and rapid experimentation, Lunos gets clients to a point of clarity and confidence about whether their idea solves a real problem people will pay to fix.
What is the “aha moment” in product development?
The aha moment is the point at which a user picks up a product and immediately understands its value and wants to use it. James and Caroline argue that everything between the user’s entry point and that moment is friction that should be removed. Finding it early, before a full product is built, can save enormous time and money.
What is the Lunos process?
The process starts with a workshop that aligns the client’s current position, goals, and key assumptions. From there, Lunos creates hypotheses, selects experimentation techniques, goes to market with tests, analyses results, and reaches a decision point: proceed, iterate, or pivot. The process can be done in a guided “done with you” mode or a self-directed DIY mode.
When should a startup founder come to Lunos?
As early as possible, ideally at the seed of an idea. But Lunos also works with existing businesses that are stagnating, needing to pivot, or confused about why their product isn’t working. The process is useful any time a business needs to reconnect with what its customers actually need rather than what the founders assume they need.
What does Lunos mean?
Lunos is a Finnish word meaning draft or prototype. The name was chosen deliberately to reflect the company’s core belief that everything should be drafted, tested, and iterated before being treated as final.
Topics discussed
Full transcript
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Show full transcript (41 minutes, 5 sections)
0:00 Introduction
James, thank you so much for being on Give It A Nudge today. We’re so excited to share your story but more so because this is one of our first ones in the UK. James started his career at Just2.com and the mobile world exploded from there. His whole career has been around digital and mobile, from the product side through to strategic partnerships and business development. Caroline started in development, then moved into UX, marketing, and design, before exploring her own ideas and running her own businesses. They met at Nokia.
8:00 The founding story of Lunos
For a long time my list of ideas was constantly growing. The classic thing: you have an idea, you build it, you build more, and very quickly it spirals out of control. Lunos grew from asking: how can I systematically test these ideas? These same themes kept coming up in consulting work with early and growth stage startups. People have ideas and classically think: I need to build something digital to test it. But there’s so much you should arguably be doing first. Building tech is costly and you can layer in multiple assumptions very quickly. So the question became: how can we help people go from idea to validated understanding without building everything first?
20:00 The Lunos process
Our initial workshop lays the baseline: where they are, where they’re trying to get to, and their current challenges. From there it’s a very particular process of creating a hypothesis, what we believe is true, and then going out to market to test it. We look at a suite of different experimentation techniques, get into the market, speak to real customers or run simulations, come back to the table, and reach a decision: proceed, iterate, or fundamentally pivot? Everything is done collaboratively. We’re hand-holding them through it so it shouldn’t be a surprise. And we also have a DIY model developing for those who want the framework but can run with it themselves.
28:00 The aha moment and building an audience first
What is the aha moment? That’s not exclusive to B2C, it applies to B2B too. It’s that moment where the end user picks it up and thinks: oh my god, yes. Any step between the user’s entry point and that moment almost needs to disappear. We also try to get clients to a place where they’re launching with a community behind them rather than launching into silence. Being entirely reliant on paid media from day one burns cash fast and acquisition channels dry up the moment you pause spend.
35:00 The partner ecosystem
We don’t try to do everything in-house. We have a partner network: development partners, designers, branding studios, sales support, funding and financing partners. But rather than just sending a referral, we onboard each partner into everything that’s been done with the client. They arrive at the partnership already understanding the context, which means they can get to value much faster. The whole ecosystem feels like one team rather than a series of handoffs. Lunos is a Finnish word meaning draft or prototype, which captures exactly what we believe in: draft everything before you build it.
About the host
Steve Grace is the founder and CEO of The Nudge Group, a technology-focused recruitment and advisory business. He has built and scaled companies across Australia and the US, and hosts Give It A Nudge to spotlight founders and operators building something meaningful.
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