Lydia
Peer-to-peer payments, reimbursements and group pots. More than five million users historically. It's the product that put a brand name into everyday speech.
The originFifteen years to turn an idea into a unicorn, then to make it profitable. One conviction held since 2011, 235 million euros raised, and an app whose name became a verb. His path is the exact opposite of every other profile on this site.
He has confirmed that neither he nor his co-founder Antoine Porte has individually held a majority since the first investor came in. That's the point that makes any net-worth calculation impossible, and the one almost every article gets wrong.
An ISG graduate in 1995, he first aims for luxury marketing, then joins a small IT company where he rises to head of marketing and development. He lives through the dot-com bubble and its collapse from the United States, then co-founds a software company for banks and telecom operators in 2001.
Something he notices while travelling intrigues him: mobile payment works as well in Japan as in countries with little banking infrastructure, like Kenya. He starts looking for a co-founder far more technical than himself, and meets Antoine Porte.
After a first barcode-payment product for bars that fails to catch on, Lydia launches in July. They pitch taxi drivers, doctors, osteopaths, plumbers. Almost everyone says no. The 600,000 euros put in by friends and family starts melting away.
A team member suggests testing reimbursements in a school. The treasurer of a student union uses it to sell party tickets. One campus, then ten, then fifty, then hundreds.
In the hall at Dauphine university, he hears someone say "I'll Lydia you". The app has 60,000 users at that point and the company fifteen employees. That's the moment he understands what they're holding.
A $103 million round led by Dragoneer and Echo Street values Lydia above a billion. Tencent and Accel are among the investors. Total raised since founding will reach 235 million euros.
This is the most interesting decision of his career, and the riskiest.
Lydia had succeeded thanks to one thing: sending twenty euros to a friend in three seconds. Then came cards, accounts, savings, credit, investing, cryptocurrencies, cashback. The app that owed its success to its simplicity had become a monster — for users most of whom still just wanted to pay a friend back.
On 15 May 2024, rather than adding more, they take things away. Lydia becomes the peer-to-peer reimbursement and group-payment app again. Sumeria takes over everything banking and becomes a product in its own right. Two brands, two apps, one user base deliberately cut in half.
His formula sums up the logic: a bank often thinks its app is perfect when nothing more can be added to it; he considers it perfect when nothing more can be taken out. He has another, more direct test — would his mother know how to use it.
Peer-to-peer payments, reimbursements and group pots. More than five million users historically. It's the product that put a brand name into everyday speech.
The originThe current bet: account, card, banking services. More than two million users. The stated ambition goes beyond a neobank — building an independent European banking institution, with 100 million in investment over three years and up to 400 hires.
The betA conversational assistant launched in March 2026 inside Sumeria, developed in-house over nearly two years. You ask it where a payment went or to block your card, instead of hunting through menus. Some of its answers commit the company.
March 2026Around 250 staff across four sites — Paris, Lyon, Nantes and Bordeaux. Antoine Porte, his co-founder, is its chief executive.
250 peopleAccel, Tencent, XAnge, New Alpha, Groupe Duval, Founders Future, Dragoneer, Echo Street. That list alone explains why the company's valuation says nothing about its founders' wealth.
€235M raisedHe helped create the association and served as its vice-president. He regularly speaks on regulation, payments and now artificial intelligence applied to banking.
EcosystemFour amounts circulate, and three of them are consistently misread.
His personal wealth therefore can't be calculated, and the reasoning that multiplies a valuation by an assumed percentage doesn't hold: his current stake isn't public, the dilution after 235 million raised is unknown, and any share sales would be too.
The distinction is a legal one, and it has concrete consequences. Lydia Solutions holds French electronic money institution status, authorised and supervised by the ACPR. That status allows it to offer an account, an IBAN, cards and payments — which covers the everyday use of most customers.
It is not, however, the credit institution licence, the one that legally makes a bank and opens up the full banking range. Obtaining it is precisely one of the goals he has announced, along with expansion into Germany, Spain and Portugal, and a possible stock-market listing on a horizon of around five years — none of which is settled.
Every other profile on this site tells the same mechanism: an audience converted into revenue, then into assets. He does the opposite, on every count.
Where Marc Lou launches thirty-six projects and drops the ones that don't take quickly, Cyril Chiche held the same conviction from 2011 — despite a failed first product, cold outreach that went nowhere, and thirteen years before any profit.
No channel, no prior community, 11,400 followers on his main platform. Growth was funded by 235 million euros of investor money, at the cost of dilution. It's the exact opposite of the self-funded model of Manoah Labranche, or of Aurélien Amacker, who built Systeme.io with $200,000 of his own money and nothing else.
Licences, ACPR supervision, registration of intermediaries. Where the other profiles can launch a product in a week, every step here is counted in months of procedure. It's also what protects the position once it's won.
This profile is here because of that contrast. People often remember only one model of entrepreneurship — the fast one, told in public. His shows that a durable position is sometimes built over fifteen years, with no audience, and that it then becomes very hard to dislodge.
It isn't public, and it can't be deduced from Lydia's valuation. He has confirmed that neither he nor Antoine Porte has individually held a majority since the first investor came in, and 235 million euros raised implies substantial dilution whose details aren't known.
The last public price dates from 2021: more than a billion dollars. No recent round has set a new one. A 2021 valuation says nothing about a 2026 one, in a sector where multiples have moved a great deal.
Because the app had become too complex for its main use. By stacking banking, savings, credit and investing onto it, it had lost the simplicity that made it successful. Splitting let Lydia recover that and let Sumeria exist as a real banking product.
Not in the full legal sense. Lydia Solutions is an electronic money institution, which permits accounts, IBANs, cards and payments. The credit institution licence, which makes a bank in the strict sense, remains an announced goal rather than one obtained.
More than five million for Lydia and more than two million for Sumeria, with the ecosystem historically presented at around eight million users. The perimeters vary between statements, so these figures are orders of magnitude.
He mentions it as a possible step on a horizon of around five years, after international expansion and obtaining the banking licence. Nothing is settled, and he says so himself.
A niche, an audience, then revenue you turn into assets: the principle behind these profiles is set out step by step in the member area.