Jürgen Galler
About Jürgen Galler
Jürgen Galler is a technology entrepreneur based in Zurich, Switzerland. He co-founded 1plusX, an AI-powered marketing technology platform, and served as its CEO. 1plusX was later acquired by TripleLift. Public profiles list the company as founded in 2014 with Thomas Hofmann of ETH Zurich and Joachim Schoss, who founded Scout24.
Before 1plusX he was Product Director EMEA at Google, Chief Strategy Officer at Swisscom, and Vice President of Product Management at Bertelsmann. He holds a Ph.D. in economics and social science with a focus on business IT.
Today he invests in and advises AI startups as a co-founder of Ellipsis Venture. He also speaks at industry events. He was a judge at an AI for Good startup pitch session, and he is listed as an AI for Good speaker.
PitchBook lists Galler as an active individual angel investor in Zurich. It also lists him as a Venture Partner at Ellipsis Venture and as a founding partner of Future-Fund.ai. PitchBook shows only one recorded investment, so his full angel history is not public.
On LinkedIn he has said he is an investor in Lineage, a search fund led by Carlo Schmid. He described the search fund model as a way to become an entrepreneur by acquiring a company.
In October 2026 Klarent announced a seed round of $8M (reported as €7.13M). Mosaic Ventures led it, with Moonfire Ventures and angels including Galler. Klarent was formerly called fore ai. It is a Zurich-based autonomous software testing company founded in 2023 by ex-Google engineers Asheem Panakkat and Momchil Ivanov. Its AI agents write test code. Ivanov thanked Galler publicly for backing the company since day 0.
PitchBook also lists an investment in Mirelo AI, in multimedia and design software. The year is not stated in the source.
Galler's stated focus is AI startups. Nordic9 describes Ellipsis Venture, which Galler co-founded with Yariv Adan, Matthias Dantone and Thomas Hofmann, as an investment vehicle writing $100k to $500k checks into pre-seed and seed-stage AI companies. That figure describes Ellipsis, not Galler's personal angel checks, and he has not published a personal check size. His investments are based in Switzerland and Europe, and he is reported to have a background in AI-driven data and marketing technology.
- Klarent: autonomous software testing platform using AI agents; $8M seed announced October 2026, led by Mosaic Ventures.
- Mirelo AI: multimedia and design software company listed on PitchBook; investment year not public.
- Lineage: search fund led by Carlo Schmid, mentioned by Galler on LinkedIn as an investment; year not stated.
- pitchbook.com/profiles/investor/551743-48
- aiforgood.itu.int/speaker/jurgen-galler
- eu-startups.com/2026/10/zurichs-klarent-raises-e7-13-million-to-scale-
- klarent.ai/blogs/klarent-secures-8m-seed-funding
- app.dealroom.co/news/feed/zurich-s-klarent-raises-8-1m-to-scale-autono
- linkedin.com/in/momchil-ivanov-040bb53b
- nordic9.com/companies/ellipsis-venture
- linkedin.com/in/juergengaller
Investing activity
Jürgen Galler appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $8M. The most recent is Klarent (Seed, $8M, Oct 2026).
Jürgen Galler most often invests alongside Mosaic Ventures, Harris Barton, AngelInvest Ventures and Moonfire, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Jürgen Galler
Who is Jürgen Galler?
He is a Zurich-based technology entrepreneur and investor. He co-founded and led 1plusX and co-founded Ellipsis Venture. He previously held senior roles at Google, Swisscom and Bertelsmann.
What AI startups has Jürgen Galler invested in?
He took part as an angel in the Klarent seed round announced in October 2026. PitchBook also lists Mirelo AI. His full portfolio is not public.
What stage does Jürgen Galler invest in?
His Ellipsis Venture co-founder vehicle is described as investing in pre-seed and seed-stage AI startups. His known angel investment, Klarent, was a seed round.
What is Jürgen Galler's check size?
He has not published a personal check size. Nordic9 describes Ellipsis Venture as investing $100k to $500k in pre-seed and seed AI startups.
What is Ellipsis Venture?
It is an AI-focused investment vehicle in Zurich. Yariv Adan, Jürgen Galler, Matthias Dantone and Thomas Hofmann founded it.
Where is Jürgen Galler based?
He is based in Zurich, Switzerland.
Is Jürgen Galler an angel investor?
Yes. Jürgen Galler invests personally as an angel.
What AI companies has Jürgen Galler invested in?
Jürgen Galler's AI investments include Klarent. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Jürgen Galler invest at?
In the rounds tracked on Lounge, Jürgen Galler has invested at Seed, with a median round of $8M.
Who does Jürgen Galler co-invest with?
Jürgen Galler's most frequent co-investors on Lounge are Mosaic Ventures (1 deal), Harris Barton (1 deal), AngelInvest Ventures (1 deal) and Moonfire (1 deal).