how Parqet reached 15k MRR in a year by serving only German investors

Sumit Kumar started paying attention to his own finances in 2018 and began investing in stocks. The tools available to German retail investors frustrated him. The most capable option had to be installed locally and looked dated, so in December 2019 he started building his own tracker, then called Tresor One, as a side project while working as Head of Engineering at a German car-sharing company. The offer to join Stripe as an early employee came after he had already started building. He solved his own problem first and kept the scope tiny on purpose: one broker, one language, one currency, one market, one asset class.

About three months after launch he introduced a paid plan and the first subscribers arrived. Rather than spend on ads, he built portfolio sharing directly into the product so users would show their dashboards inside Germany's active retail-investing community, and he added an affiliate program so others handled acquisition while he focused on conversion, churn, and the product itself. By the end of the first year the product was at roughly €15k MRR, and it crossed €17k MRR with about 100,000 registered users later in 2021.

The narrow focus was the whole strategy. By being German-only, Parqet could go deeper on local brokers and tax details than any international competitor, which made it the clear best option for its audience. Sumit ran it almost entirely solo at first, getting up at 6am to code before work, continuing through lunch breaks, evenings, and weekends. He has been candid that the pace was unhealthy, and after three years he reached a breaking point: either stop Parqet or leave Stripe.

In May 2022 he left Stripe, and from June 1 he was working on Parqet full time. By then, the forced rebrand from Tresor One to Parqet, triggered by a cease-and-desist over a similar name, was already behind him: it was announced in June 2021 and roughly 90-95% complete by July that year, about eleven months before he went full time. The business stayed bootstrapped and profitable throughout, which Sumit argues became an advantage in 2022 when venture funding tightened and competitors had to pivot toward profitability while Parqet simply kept going. By an August 2024 interview he reported the product was around $108k MRR, still focused on the DACH region.