Maurizio Ghisolfi (MON5)
Maurizio on customer validation, hiring, pitching, and building startups in Luxembourg
Most startup advice focuses on fundraising, growth, or product development.
Maurizio's advice is simpler.
Talk to customers before you spend months building.
After working in startup acceleration, founding and selling a company, and now helping grow MON5, Maurizio has developed a clear view on what matters in the early stages of a startup: understanding whether customers actually need what you're building.
In our conversation, we discussed customer validation, hiring, startup myths, pitching, Luxembourg's startup ecosystem, and the lessons he would give any founder starting from scratch today.
One theme kept appearing throughout the discussion:
The earlier you understand what customers actually want, the fewer mistakes you'll make later.
Before joining MON5, Maurizio worked in startup acceleration in Paris and later founded and sold a supply-chain startup. Today, he helps grow MON5, an industrial cybersecurity company. Across those experiences, one lesson has remained consistent: talk to customers before you spend months building.
If Maurizio could give one piece of advice to an early-stage founder, it would be this:
"Don't focus too much on the technology and product. Talk since day one with potential customers."
It's a mistake he sees repeatedly.
Founders spend months building features, refining products, and chasing technical perfection before confirming whether anyone actually wants what they're creating.
His view is straightforward:
The goal is to understand first, to dig into the friction in that space: what's wasting time, money, and effort, what's driving inefficiency, and what underlying levers are causing those issues. It's about understanding the real jobs the people you talk to are trying to get done.
Maurizio's argument is simple: founders should spend less time perfecting products and more time speaking with potential customers. The goal is to understand whether the market actually needs what you're building before investing months into development.
The earlier those conversations happen, the less time is wasted building something nobody needs.
For Maurizio, selling and learning should start immediately.
Not after launch.
Not after the product is finished.
From day one.
When asked what success would look like in the coming years, Maurizio didn't mention fundraising, valuation, or headcount.
He focused on customers.
"I think now the only KPI that we need to measure is revenue, so clients."
For MON5, growth means more installations, more customers, and continuing to develop the product based on data we collect and those customer needs.
For Maurizio, more customers and more deployments are the clearest signs that the company is solving a real problem.
When asked which challenge is harder—fundraising or hiring—Maurizio chose hiring without hesitation.
His reasoning is particularly relevant in smaller startup ecosystems.
Finding highly specialised talent is difficult.
Finding people who are both technically strong and a good fit for a startup is even harder.
Maurizio believes the right people can bring much more than technical expertise. They can also bring credibility, industry knowledge, introductions, and customer opportunities—making hiring one of the highest-leverage decisions a startup can make.
For startups trying to scale, a single exceptional hire can create leverage that no software tool or process improvement can replicate.
MON5 recently won the Startup World Cup Luxembourg.
But Maurizio doesn't consider himself a pitch expert.
In fact, he openly admits that public speaking isn't something he particularly enjoys.
One lesson he has learned is that founders often try to communicate too much.
Especially when they have limited time.
His advice:
Keep the message simple.
Focus on the few things people absolutely need to understand.
"Maybe you only need four or five clear pieces of information about your company."
This becomes particularly important in technical sectors.
MON5 operates in cybersecurity, a field where it's easy to disappear into technical details.
Maurizio intentionally avoids going too deep into product complexity during short presentations because he believes audiences can quickly lose the main message.
The objective isn't to explain everything.
The objective is to make people curious enough to want to know more.
Many outsiders see Luxembourg's size as a disadvantage.
Maurizio sees it differently.
According to him, one of Luxembourg's greatest strengths is that the ecosystem is small enough for meaningful connections to happen quickly.
Founders can access investors, advisors, programmes, and ecosystem participants more easily than in larger startup hubs.
He also highlights Luxembourg's international nature.
Companies can build relationships across neighbouring markets, including France, Germany, and Belgium, while remaining connected to a highly supportive local ecosystem.
For early-stage founders, speed of access often matters more than ecosystem size.
And that's where Luxembourg can create an advantage.
Startup culture often celebrates extreme work schedules.
Maurizio isn't convinced.
When asked about the biggest founder myth, his answer was immediate:
"You need to work 24-7."
Building a startup does require deep commitment; it's often an all-consuming decision. But for Maurizio, the measure of that commitment isn't how many hours you put in. It's what you choose to spend your time on.
This matters especially in the early stage, when things are often messy and unclear. The right move isn't to track how many hours you're working; it's to make sure the time you do spend goes toward the things that actually matter.
One of the most interesting moments in the conversation came when Maurizio reflected on something he believes today that he would have disagreed with five years ago.
His answer was about remote work.
Earlier in his career, he believed remote-first was the best way to operate.
Today, he takes a different view.
Particularly for founders.
"For me now, it's really crucial to be in the same room with your co-founders."
He believes in-person collaboration creates advantages that are difficult to replicate remotely during the earliest stages of building a company.
His position isn't based on theory.
It's based on experience.
And changed opinions are often the most valuable lessons founders have to share.
After winning Startup World Cup Luxembourg, MON5 will head to San Francisco for the global finals.
But when asked what success would look like, Maurizio didn't talk about trophies or rankings.
He talked about customers.
Learning from the market.
Meeting the right people.
And understanding whether there is an opportunity to build something bigger.
The advice he would give an early-stage founder remains unchanged:
Talk to customers before you build.