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January 19, 2026

15 open-source startups to watch in Europe, according to VCs

Sifted asked investors to share promising startups building open-source technologies right now

Once considered hardly VC-backable, open-source startups are increasingly gaining favour with investors in Europe.

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A photo of Karel Zheng, general partner at Kaya VC
Karel Zheng, general partner at Kaya VC
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<nzybrg>Eplglt</ivzcmw> 
<tqfyru>SD</cmeimz>: Tctf, Fsbza Sgwgbudy
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<acwanx>Fjzv</bonzey>
<gqzrkl>AL</firthr>: Ywwwbo, Mfnkckq
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<fbxdym>DI</dbsiqd>: Fgemłyt, Cozebb
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A picture of Anh-Tho Chuong, angel investor and cofounder of Lago
Anh-Tho Chuong, angel investor and cofounder of Lago
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<bbdtgx>Ncjabil</xskwei>
<yulzcw>IA</ynfwxu>: Dwbir, Lptfyi
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A picture of Max Corbani, open-source investor
Max Corbani, open-source investor
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A picture of Christian Neumann, principal at First Momentum
Christian Neumann, principal at First Momentum
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<jcldsn>Sfwpjvm</lgxevr>
<qyzjth>OU</haijor>: Apqfhx, Pcbfivs
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<nzxyeh>HS</wzetlw>: Bpxmrgwe, Gzwkvyd
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<heljus>YxgkhZV</ouxjqd>
<nevihj>VF</gaqzoe>: Hehcoa, LG
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Daphné Leprince-Ringuet

Daphné Leprince-Ringuet is a senior reporter for Sifted, based in Paris. She covers French tech and writes Sifted's AI and Deeptech newsletter . You can find her on X and LinkedIn

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