Anton Rummel
About Anton Rummel
Anton Rummel is a co-founder of Moss, a Berlin company that offers corporate cards and spend management software. Moss was founded in 2019 by Rummel, Ante Spittler, Ferdinand Meyer and Stephan Haslebacher, and launched in mid-2020 with a corporate credit card for German startups and digital companies. Crunchbase lists Rummel as Co-Founder and Managing Director, Sales. Moss's own team page lists him as GM and co-founder.
Before Moss he co-founded Move24 (also known as Movinga), a relocation services startup, with Carsten Bild and Marcel Rangnow. Crunchbase lists the company as closed, and Tracxn describes it as acqui-hired. Crunchbase also lists him as a former Partner at Global Founders Capital. He studied at WU Vienna and the London School of Economics and Political Science.
Crunchbase lists four personal investments for Rummel. Public announcements name him as an angel investor in the 2023 pre-seed round of the sleep coaching app eaze and in the seed round of the energy startup Ostrom, where he was listed with his Moss co-founders. He was also named in the 2026 Limetax round. Crunchbase additionally lists a pre-seed investment in Melotech, with no date or amount shown. He invests alongside his Moss co-founder Ante Spittler in at least some of these rounds.
His AI-related round on the Lounge deals desk is Limetax, a Berlin startup building a Germany-wide group of AI-enabled tax and accounting firms. In September 2026 Limetax announced a €36M package. That package is a €6M pre-seed equity round led by Motive Partners, with Activant and Heliad, plus a €30M acquisition line from a consortium of German banks. Rummel took part as an angel, alongside Christian Lindner, Alexander Kudlich and Ante Spittler. Limetax launched in January 2026 and says it will use the funds to develop its agentic platform and add partner tax firms. His share of the round is not public.
Rummel has not published an investment thesis or check size that we could find. His disclosed angel rounds are pre-seed and seed, in Germany and mostly Berlin. They cover fintech-adjacent AI (Limetax), consumer health (eaze) and energy (Ostrom). Founders should treat these as observed activity, not a stated mandate.
- Limetax: builds a group of AI-enabled German tax and accounting firms; angel in the pre-seed round announced September 2026.
- eaze: Berlin sleep coaching app; angel in the €1.7M pre-seed announced July 2023.
- Ostrom: German energy provider; listed among angels in its €4.4M seed round.
- Melotech: listed by Crunchbase as a pre-seed investment; date and details not public.
- Moss: corporate card and spend management platform he co-founded in 2019.
- Move24 (Movinga): relocation services startup he co-founded; now closed.
- crunchbase.com/person/anton-rummel
- getmoss.com/about-us
- startbase.com/news/moss-sammelt-75-millionen-euro-ein
- limetax.de/en/news/limetax-secures-36-million-funding
- startup.eu/investments/limetax-36-m-pre-seed-09-2026
- eu-startups.com/2026/09/limetax-lands-e36-million-to-build-an-ai-power
- eu-startups.com/2023/07/berlin-based-healthtech-eaze-closes-a-e1-7-mil
- tech.eu/2023/07/06/easing-germans-into-a-good-night-s-sleep-sleep-app-
Investing activity
Anton Rummel appears in 1 AI deal tracked by the Lounge deals desk, rounds totalling $41M. The rounds are mostly Pre-seed, with a median round size of $41M. The most recent is Limetax (Pre-seed, €36M, Sep 2026).
Anton Rummel most often invests alongside Motive Partners, Activant, Ante Spittler and Alexander Kudlich, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Anton Rummel
Who is Anton Rummel?
Anton Rummel is a Berlin-based co-founder of Moss, a corporate card and spend management company. He is a former Partner at Global Founders Capital and co-founded Move24 earlier.
Has Anton Rummel invested in AI startups?
Yes. He was named as an angel in the September 2026 Limetax round, a €36M package for an AI-enabled tax firm group. The package combines €6M of pre-seed equity with a €30M bank acquisition line.
What is Anton Rummel's angel check size?
His check sizes are not public. Announcements name him as a participating angel but do not give amounts.
What stage does Anton Rummel invest in?
His publicly reported angel investments are pre-seed and seed rounds, including eaze (2023), Ostrom and Limetax (2026).
Does Anton Rummel invest outside Germany?
We found no public record of this. His disclosed angel investments are in Germany, and most are in Berlin.
How can founders contact Anton Rummel?
He has a public LinkedIn profile at linkedin.com/in/antonrummel. We found no personal website or X account.
Is Anton Rummel an angel investor?
Yes. Anton Rummel invests personally as an angel.
What AI companies has Anton Rummel invested in?
Anton Rummel's AI investments include Limetax. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Anton Rummel invest at?
In the rounds tracked on Lounge, Anton Rummel has invested at Pre-seed, with a median round of $41M.
Who does Anton Rummel co-invest with?
Anton Rummel's most frequent co-investors on Lounge are Motive Partners (1 deal), Activant (1 deal), Ante Spittler (1 deal), Alexander Kudlich (1 deal) and Heliad (1 deal).