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Podcasts, videos, and insights from top CEOs and CPOs.
For software companies only
Top-tier CPOs and CTOs working directly inside your team to fix what slows Product & Engineering down.
Proven across 100+ scale-ups
Most companies try to fix this with reorgs, new hires, or better processes.
It never works.
The problem isn't the people or the tools. It's the operating model. How decisions get made, how priorities get set, how product and engineering work together.
That's what we fix.
Hands-on, fast, and with people who've done it before.

Our team
Every person on this team has owned the outcome, not advised on it.
Discover the team
Our offers
Stellar doesn’t deliver frameworks or decks that collect dust. We work directly with CEOs to fix what actually blocks Product & Engineering.
Audit
Coaching
Part-time leadership
Our principles
"The engagement allowed us to step back and reflect on our key challenges [...] Without them, I would never have managed to drive such rapid change within the group."
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"When I changed roles, I had to relearn everything. The support helped me regain confidence [...] We went from a demand-driven product to a vision-driven product."
.png)
"The support enabled me to structure the Product function as a true strategic lever [...] and lay the foundations for a scalable organization to support our diversification."
.png)
“The audit enabled me to quickly gain clarity and make the right decisions at the right time. The impact was immediate: greater clarity, a better pace, and renewed collaboration.
.png)
"Stellar's intervention transformed a frozen project into a clear, actionable plan [...] Their ability to challenge without imposing, to coach without dominating, made all the difference."
.png)
“Having an experienced mentor who listens and takes concrete action enabled me to take a step back. The exchanges helped me gain confidence and gave me the tools to face the future with serenity.
.png)
"The Stellar audit enabled us to make the key issues objective, formalize our intuitions, and above all, launch the priority initiatives immediately, without delay.”
.png)
Stellar's CPOs are not just facilitators: they bring real convictions and on-the-ground expertise. Pragmatic and effective support."
.png)
"In three months, we found our PMF, signed our first structuring contracts and attracted new investors. Stellar's support had a decisive impact at a key moment for the company. I'd recommend it to any founder in the early-stage phase."
.png)
"Matthieu, with his experience as founder and CPO, immediately challenged us. Thanks to his approach, we avoided looking for the 'five-legged sheep'. Stellar's peer assessment and benchmarks were decisive."
.png)
"Stellar's ability to challenge my intuitions with concrete data saved me an incredible amount of time and avoided costly recruitment mistakes."
.png)
"Mentoring with Stellar helped us smooth the relationship between CEO, Product and Tech, make decisions we'd been putting off for months, and become more efficient in customer onboarding and delivery."
.png)
“The bulk of the value of the engagement came from the quality of the Stellar team: pragmatic, experienced, and able to dive deep into issues rather than just skim the surface."
.png)
"What I particularly appreciated was Stellar's ability to adapt their recommendations to our level of product maturity.Their plan was fully adapted, yet ambitious. That's all it took to get the CODIR and all the teams on board."
.png)
"The audit enabled us to catch the wave at the right time. Before, I used to pull my teams, now I push them: they have adopted the vocabulary, the priorities and are challenging each other. Stellar was able to transform our findings into a concrete action plan"
.png)
"Stellar's audit was a real wake-up call. This support enabled us to move from a logic of frugality to a dynamic of investment, essential to relaunching our growth and preparing for international expansion."
.png)
"Mentoring with Stellar has been a real gas pedal. Having an external, experienced and benevolent viewpoint changes everything when you're in the middle of a Scale phase."
.png)
"Working with Stellar was a real catalyst. In just a few weeks I gained in serenity, posture and, above all, impact. It's simple: without it, we'd never have been ready to Scaler internationally."
.png)
"The Stellar method clarified our Product direction, and enabled us to realign and better structure our execution. The support we received saved us months."
.png)
"Stellar succeeded in mobilizing the entire COMEX and teams to move from project mode to product mode! An essential transformation to achieve our post-LBO growth objectives."
.png)
"You might expect a surface-level audit, yet the action and recruitment plan provided by Stellar is a real Game-Changer for my teams, all the more so in the context of our Series A Closing. I recruited our new CTO in the process, saving 2 months in his Onboarding!"
.png)
"Stellar's solutions were very relevant. I particularly appreciated the efficiency of the intervention; in less than 2 weeks, I received a clear strategy to help my startup accelerate on the product and the business!"
.png)
"We gave you demanding specifications, and you met them to the letter. Great exchanges, great clarity in the deliverables, and a real jolt for us. If I had to rate the assignment, I'd give it a big 5/5. You unlocked important things, way beyond the product."
.png)
"The initial exchange with Stellar was an electroshock: the questions asked revealed a huge gap between their daily lives and Product standards, which triggered an immediate awareness."
.png)
"For the short amount of time we spend with our teams, the efficiency of the process is beyond reproach. It's exactly what we expect from an audit, but with unprecedented speed".
.png)
"What I appreciated most was the responsiveness and attentiveness of the Stellar team. Thanks to them, we were able to effectively prioritize our Product decisions and quickly adopt the best practices adapted to our maturity."
.png)
"There was a before and an after to Stellar. They compensated for the absence of a Head of Product and the lack of seniority in our team in just a few days a month. They revolutionized our strategy and overhauled our processes from top to bottom. In 6 months, my employees are more engaged than ever, my customers are converting on our new model and our users are seeing new features released every month."
.png)
"Stellar's coaching was a game-changer for OKS Media. With the help of our Stellar CPO, we completely revamped our strategy and optimized our development processes. We saved a huge amount of time and avoided many unnecessary expenses."
“It’s very simple: before Stellar, I didn’t have a Product function and we were operating blindly. They helped me raise my standards and prepare my team for the upcoming growth stages.”
.png)
“Thanks to Stellar’s support, we transformed our Product organization. A hands-on, proven approach, far from the PowerPoint theories of traditional consulting.”

“The engagement is effective and pragmatic. They get straight to the point and involved our teams over a very short period. The Stellar team saved us two months.”

"The engagement allowed us to step back and reflect on our key challenges [...] Without them, I would never have managed to drive such rapid change within the group."
.png)
"When I changed roles, I had to relearn everything. The support helped me regain confidence [...] We went from a demand-driven product to a vision-driven product."
.png)
"The support enabled me to structure the Product function as a true strategic lever [...] and lay the foundations for a scalable organization to support our diversification."
.png)
“The audit enabled me to quickly gain clarity and make the right decisions at the right time. The impact was immediate: greater clarity, a better pace, and renewed collaboration.
.png)
"Stellar's intervention transformed a frozen project into a clear, actionable plan [...] Their ability to challenge without imposing, to coach without dominating, made all the difference."
.png)
“Having an experienced mentor who listens and takes concrete action enabled me to take a step back. The exchanges helped me gain confidence and gave me the tools to face the future with serenity.
.png)
"The Stellar audit enabled us to make the key issues objective, formalize our intuitions, and above all, launch the priority initiatives immediately, without delay.”
.png)
Stellar's CPOs are not just facilitators: they bring real convictions and on-the-ground expertise. Pragmatic and effective support."
.png)
"In three months, we found our PMF, signed our first structuring contracts and attracted new investors. Stellar's support had a decisive impact at a key moment for the company. I'd recommend it to any founder in the early-stage phase."
.png)
"Matthieu, with his experience as founder and CPO, immediately challenged us. Thanks to his approach, we avoided looking for the 'five-legged sheep'. Stellar's peer assessment and benchmarks were decisive."
.png)
"Stellar's ability to challenge my intuitions with concrete data saved me an incredible amount of time and avoided costly recruitment mistakes."
.png)
"Mentoring with Stellar helped us smooth the relationship between CEO, Product and Tech, make decisions we'd been putting off for months, and become more efficient in customer onboarding and delivery."
.png)
“The bulk of the value of the engagement came from the quality of the Stellar team: pragmatic, experienced, and able to dive deep into issues rather than just skim the surface."
.png)
"What I particularly appreciated was Stellar's ability to adapt their recommendations to our level of product maturity.Their plan was fully adapted, yet ambitious. That's all it took to get the CODIR and all the teams on board."
.png)
"The audit enabled us to catch the wave at the right time. Before, I used to pull my teams, now I push them: they have adopted the vocabulary, the priorities and are challenging each other. Stellar was able to transform our findings into a concrete action plan"
.png)
"Stellar's audit was a real wake-up call. This support enabled us to move from a logic of frugality to a dynamic of investment, essential to relaunching our growth and preparing for international expansion."
.png)
"Mentoring with Stellar has been a real gas pedal. Having an external, experienced and benevolent viewpoint changes everything when you're in the middle of a Scale phase."
.png)
"Working with Stellar was a real catalyst. In just a few weeks I gained in serenity, posture and, above all, impact. It's simple: without it, we'd never have been ready to Scaler internationally."
.png)
"The Stellar method clarified our Product direction, and enabled us to realign and better structure our execution. The support we received saved us months."
.png)
"Stellar succeeded in mobilizing the entire COMEX and teams to move from project mode to product mode! An essential transformation to achieve our post-LBO growth objectives."
.png)
"You might expect a surface-level audit, yet the action and recruitment plan provided by Stellar is a real Game-Changer for my teams, all the more so in the context of our Series A Closing. I recruited our new CTO in the process, saving 2 months in his Onboarding!"
.png)
"Stellar's solutions were very relevant. I particularly appreciated the efficiency of the intervention; in less than 2 weeks, I received a clear strategy to help my startup accelerate on the product and the business!"
.png)
"We gave you demanding specifications, and you met them to the letter. Great exchanges, great clarity in the deliverables, and a real jolt for us. If I had to rate the assignment, I'd give it a big 5/5. You unlocked important things, way beyond the product."
.png)
"The initial exchange with Stellar was an electroshock: the questions asked revealed a huge gap between their daily lives and Product standards, which triggered an immediate awareness."
.png)
"For the short amount of time we spend with our teams, the efficiency of the process is beyond reproach. It's exactly what we expect from an audit, but with unprecedented speed".
.png)
"What I appreciated most was the responsiveness and attentiveness of the Stellar team. Thanks to them, we were able to effectively prioritize our Product decisions and quickly adopt the best practices adapted to our maturity."
.png)
"There was a before and an after to Stellar. They compensated for the absence of a Head of Product and the lack of seniority in our team in just a few days a month. They revolutionized our strategy and overhauled our processes from top to bottom. In 6 months, my employees are more engaged than ever, my customers are converting on our new model and our users are seeing new features released every month."
.png)
"Stellar's coaching was a game-changer for OKS Media. With the help of our Stellar CPO, we completely revamped our strategy and optimized our development processes. We saved a huge amount of time and avoided many unnecessary expenses."
“It’s very simple: before Stellar, I didn’t have a Product function and we were operating blindly. They helped me raise my standards and prepare my team for the upcoming growth stages.”
.png)
“Thanks to Stellar’s support, we transformed our Product organization. A hands-on, proven approach, far from the PowerPoint theories of traditional consulting.”

“The engagement is effective and pragmatic. They get straight to the point and involved our teams over a very short period. The Stellar team saved us two months.”

Podcasts, videos, and insights from top CEOs and CPOs.
Not exactly. We're a Product & Engineering advisory firm. The difference: our team is made up of former CPOs and CTOs who've built and scaled product organizations themselves. We don't deliver slide decks and leave. We work directly with your executives to diagnose what's slowing you down and help fix it through audits, coaching, or hands-on part-time leadership.
That's not our primary role, but we can. We work in three scenarios: helping CEOs challenge and improve how their Product & Engineering org performs, supporting existing CPOs and CTOs with senior-level sparring and coaching, or stepping in as interim leadership for a few months while you recruit the right person.
Two paths. Either we help your existing leaders implement the recommendations through a structured coaching program, or one of our CPOs or CTOs joins your team part-time to put them in place over several weeks. Either way, the audit doesn't end up in a drawer.
Every person at Stellar has led Product or Engineering at some of Europe's best software companies. These are former CPOs and CTOs who've sat in your chair, managed your kind of team, and dealt with the same pressure you're facing. No juniors, no generalists.
Software companies between 50 and 500 employees. Bootstrapped or funded, it doesn't matter. What they share is a Product & Engineering organization that's hit a ceiling and a CEO who knows something needs to change.
An audit takes two weeks. Coaching programs typically run three months. Part-time leadership is tailored to your needs.