In the early days of building a startup, founders often focus on one thing: finding investors.
But sometimes, the most important investor is already sitting at the table.
At Rockstart, mentors are not just advisors. They are experienced operators, founders, and industry experts who work closely with startups throughout their growth journey. Over time, some of these mentors evolve into something even more impactful: investors who already know the company from the inside out.
This is the essence of Rockstart’s Mentor-Investor Model, where mentorship and investment are not separate steps, but part of a continuous relationship.
By the time a startup begins raising its next round, mentors have already seen the team navigate pivots, product decisions, and early challenges. They understand the company beyond the pitch deck. That perspective changes everything.
Mentorship as a strategic advantage
For early-stage founders, mentorship is not just support, it’s leverage. Founders make critical decisions every week, often with limited experience and incomplete information. Mentors bring pattern recognition built over years.
Thomas Bagge Olsen, a mentor within the Rockstart network, knows this firsthand.
“I started a company myself many years back, so I still have strong feelings about being an entrepreneur. I believe my experience can help founders navigate those early stages.”
With experience across startups and large food retail organizations, he supports founders on practical challenges like scaling production, understanding consumers, and entering complex markets.
But what makes mentorship particularly powerful is proximity.
“Mentoring gives me the chance to really understand the team, what drives them. That’s probably the most important factor when considering an investment.”
From insight to investment
Traditional investors assess startups from the outside. Mentors experience them from within. That difference matters.
Mentors see how founders handle uncertainty, how teams evolve, and how decisions are made under pressure. Over time, this creates a level of conviction that is difficult to build through pitch meetings alone.
“If you get involved early, you get a much better understanding of what’s really happening in a company,” John Fraeijhoven, asset integrity advisor collaborating with Rockstart explains. “That naturally makes it more interesting from an investment perspective.”
John also reflects on what drives him to mentor:
“For me, it’s about a broader perspective. From the beginning, you learn from people, often because they have more experience than you. But over time, you also build your own experience and bring that back. Every time you mentor, your approach shifts a bit, because you meet different people. It’s always evolving.”
He emphasizes that mentorship is not one-directional:
“It’s always a two-way approach. I like to share what I’ve learned over the years, but you also learn something yourself every time. It can be about business, or even about life.”
Startups today are increasingly operating in complex, global environments, especially in sectors like energy, agrifood, and emerging technologies.
John highlights how operational experience can make a difference:
“When you work across countries, you realize how different markets are, especially when dealing with governments, and infrastructure. Startups entering these environments can benefit a lot from that experience.”
This kind of insight helps founders avoid costly mistakes and make more informed strategic decisions early on.
Listening before advising
For mentors like Mette Ingeman Pedersen, effective mentorship starts with listening.
“I try very hard to listen first. My role isn’t to change how founders want to run their company, it’s to guide them and help accelerate what they’re already building.”
A commercial CFO and strategic advisor, Mette focuses on turning innovation into scalable, structured businesses. One of her key contributions is helping founders simplify complexity.
“Even if you have a lot of data, there’s often just one or two insights that really matter for a decision. They have the vision and the technology, but translating that into an investment case can be challenging.”
Despite all the expertise mentors bring, one factor consistently determines success: trust.
“Seek the chemistry,” Mette advises. “You need to feel comfortable enough to talk openly about the challenges you’re facing.”
Thomas echoes this:
“When you invest in an early-stage company, you should feel a bond with the founders. Because so many things can go wrong along the way.”
Take away
Mentorship is not just about advice, it’s about perspective and trust.
The best mentors help founders think clearly, navigate uncertainty, and make better decisions. Over time, that builds real understanding.
For founders, the opportunity is simple:
choose mentors who challenge you, build strong relationships, and think long-term.
Because the people closest to your journey often understand your company best, and sometimes, they choose to back it.
