Jonas Thielman
About Jonas Thielman
Jonas Thielman is listed as an individual angel investor. Public sources found for this profile do not describe his career, employers or companies he has founded or run, so none are listed here.
PitchBook has an investor profile for an angel named Jonas Thielmann (with an extra n) that shows one investment, in Mona AI. The Mona AI announcement names Jonas Thielman as an angel in the same round.
The only public angel investment found is Mona AI, in June 2026. PitchBook lists the deal date as 22 June 2026, marks the profile as an active angel (individual) investor, and records one investment and one portfolio company. Earlier angel investments, exits and syndicate memberships are not public in the sources found.
Mona AI is a seed extension that Lounge records at $4.3M (EUR 3.8M), dated June 2026. Startup.eu lists the round at EUR 3.8M and names Jonas Thielman and Giuseppe Nardi as angel investors. Other participants are Saarländische Investitionskreditbank AG, Saarup-Venture GmbH, Earlybird Venture Capital (through Earlybird-X) and Triathlon at Universität des Saarlandes.
Mona AI says the funds are for expansion, scaling and new product solutions. The amount Thielman invested personally is not disclosed.
With one known investment, a pattern cannot be established. That investment is a seed-stage AI company building recruiting software and automation, based in Germany. PitchBook classes Mona AI as business/productivity software and as generating revenue at the time of the deal. Check size, preferred stage, sectors and geographies have not been stated publicly by Thielman.
- Mona AI: Saarbrücken-based AI recruiting platform that automates candidate sourcing, screening, matching and hiring workflows. Thielman took part in its seed extension in June 2026.
Investing activity
Jonas Thielman appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $4M. The most recent is Mona AI (Seed, $4.3M (EUR 3.8M), Jun 2026).
Jonas Thielman most often invests alongside University2Ventures and Guiseppe Nardi, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Jonas Thielman
Who is Jonas Thielman?
Jonas Thielman is an angel investor. The one investment found in public sources is the June 2026 Mona AI seed extension. A detailed career background has not been published in the sources found.
What AI companies has Jonas Thielman invested in?
Mona AI, an AI recruiting software company in Saarbrücken, Germany. He is named as an angel in its June 2026 seed extension, which Lounge records at $4.3M (EUR 3.8M).
What is Jonas Thielman's check size?
It is not public. His personal investment in Mona AI was not disclosed, and he has not published a typical check size.
What stage does Jonas Thielman invest in?
The only known investment is a seed-stage round. He has not publicly said which stages he prefers.
Who else invested in the Mona AI round with Jonas Thielman?
Co-investors named in the announcement are Saarländische Investitionskreditbank AG, Saarup-Venture GmbH, Earlybird Venture Capital (Earlybird-X), Triathlon at Universität des Saarlandes and angel Giuseppe Nardi.
How can founders pitch Jonas Thielman?
No verified LinkedIn, X or personal site was found for him. An introduction through Mona AI or its co-investors is the only route suggested by public information.
Is Jonas Thielman an angel investor?
Yes. Jonas Thielman invests personally as an angel.
What stage does Jonas Thielman invest at?
In the rounds tracked on Lounge, Jonas Thielman has invested at Seed, with a median round of $4M.
Who does Jonas Thielman co-invest with?
Jonas Thielman's most frequent co-investors on Lounge are University2Ventures (1 deal) and Guiseppe Nardi (1 deal).
How can founders reach Jonas Thielman?
Founders on Lounge can see Jonas Thielman's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with them under Warm Paths, and add Jonas Thielman to their Investor Pipeline to track the conversation.