Five Techstars Portfolio Companies Make the 2026 Sifted 250
October 5, 2026
Five Techstars portfolio companies landed on the Sifted 250, the annual ranking of Europe's fastest-growing startups by revenue. Two of them cracked the top 10.
Every year, Sifted ranks the 250 European startups with the highest percentage revenue growth over the past three financial years. The bar is high. Companies need at least three years of revenue data, proprietary technology driving the majority of that revenue, and signed documentation to back up any figures that aren't public. Together, this year's list generated €5.8bn in revenue and employs more than 25,000 people across the continent.
Five Techstars portfolio companies made the 2026 list. They span fintech, edtech, water tech, and energy storage, and two of them, Flowpay and Yaspa, finished inside the top 10.
Here's a closer look at each one, and you can see the full Sifted 250 list here.
Flowpay (#5)
Techstars 2022 | Fintech, Digital lending | Prague, Czech Republic
Flowpay is a Prague-based startup providing data-driven working-capital financing to small and medium-sized businesses.
Yaspa (#7)
Techstars 2017 | Fintech, Payments | London, United Kingdom
Yaspa is a London-based company that provides open banking payments and identity services that let businesses move money and verify customers directly through bank accounts.
Pack (#70)
Techstars 2023 | B2B SaaS, AI-native, Edtech | Bologna, Italy
Based in Bologna, Pack develops AI software for product teams to research, plan and manage product development.
Kumulus Water (#121)
Techstars 2022 | Climate tech, Water tech | Paris, France
Kumulus Water is a Paris-based startup that develops machines that produce drinking water from humidity in the air.
BioEsol (#225)
Techstars 2022 | Climate tech, Energy storage | Grenoble, France
BioEsol is a Grenoble-based startup that develops energy storage and management systems for renewable energy projects.
What these founders have in common
These five companies work in very different markets, from lending and payments to workforce learning, water, and energy storage. What ties them together is founders who kept building, kept selling, and turned early traction into real revenue growth.
Congratulations to the teams at Flowpay, Yaspa, Pack, Kumulus Water, and BioEsol.
Ranking data from the Sifted 250 (2026), published September 29, 2026.
