Sino AG

Overview

Sino AG is a Düsseldorf-headquartered German financial services company that operates a specialised electronic securities brokerage platform for high-volume private traders in Germany, a customer segment locally known as "Heavytrader". Founded in 2001 and listed on the Düsseldorf Stock Exchange and on Xetra, Sino AG is a licensed German securities trading bank supervised by Bundesanstalt für Finanzdienstleistungsaufsicht and Deutsche Bundesbank.
Why this entity matters

Sino AG matters to the Startuprad.io knowledge graph on two independent axes. First, it is one of the few remaining independent German brokerage houses focused on professional-grade tools for private high-volume traders, a customer profile that sits between the classic retail broker and institutional trading desks. Second, and more consequentially for the DACH FinTech story, Sino AG is the early institutional investor that took a majority stake in the predecessor of Trade Republic in 2017, well before Trade Republic became one of Europe's most valuable FinTech companies. This makes Sino AG a rare example of a small, listed German broker with material exposure to the largest German consumer-FinTech success story of the last decade.
Company background

Sino AG was founded in 2001 by Ingo Hillen, Karl-Ludwig Rossmann and Frank Reinhard Ternes. It built its business around a specialised trading platform and dedicated broker desks that give high-volume private clients direct market access to German and international venues, professional-grade order routing, and low-latency execution tools. Because the customer base is skewed toward active traders, Sino AG's revenue is transaction-driven and its results are structurally sensitive to overall market volatility and retail-trading volume. The company is listed on the Düsseldorf Stock Exchange and on the Xetra electronic trading system operated by Deutsche Börse.
Products and market

Sino AG's core product is its Heavytrader platform, targeting active private traders whose annual transaction volumes are far above the retail average. The service package includes multi-market direct access, professional-grade tools, and a dedicated broker relationship, differentiating it from the mass-market discount brokers that dominate the German retail segment. In the last decade the German brokerage market has been reshaped by mobile-first neobrokers, most notably Trade Republic, Scalable Capital and other app-driven challengers. Sino AG has responded by remaining focused on its heavy-trader niche while, on the balance-sheet side, benefiting from its early minority position in one of the leaders of that same neobroker wave.
The Trade Republic investment

In 2017 Sino AG took a majority stake in the Munich-based Neon Trading GmbH, the company that would relaunch under the Trade Republic brand in 2019. Over the following years the Sino AG stake was significantly diluted by successive venture-capital rounds led by Sequoia Capital, Accel, TCV, Thrive Capital, Ontario Teachers' Pension Plan and, most recently in December 2025, Founders Fund. This dilution is a normal capital-structure event for a scaling FinTech and has been described publicly by Sino AG in its own investor communication as such. The residual Sino AG stake in Trade Republic remains a material intangible asset on Sino AG's balance sheet and is one of the most-followed items in Sino AG's own investor-relations communication.
Selected relationships and affiliations

Sino AG is a supervised German securities institution overseen by Bundesanstalt für Finanzdienstleistungsaufsicht and Deutsche Bundesbank and is listed on the Düsseldorf Stock Exchange and Xetra. Its most-followed strategic investment relationship is with Trade Republic, in which it took a majority stake in the predecessor entity in 2017 and remains a material shareholder after subsequent dilution by Sequoia Capital, Accel, TCV, Thrive Capital, Ontario Teachers' Pension Plan and Founders Fund. Sino AG's operating market and its Trade Republic position also connect it to the wider network of Peter Thiel, through Founders Fund's role as Trade Republic's largest US shareholder.
Startuprad.io relevance

Sino AG is a recurring reference point in Startuprad.io's coverage of the DACH FinTech ecosystem and appears in the Startuprad.io Unicorn Atlas cluster around Trade Republic as one of the earliest institutional investors in the predecessor entity. It is also a useful comparator in Startuprad.io analysis of how legacy German brokerage houses have positioned themselves against the mobile-first neobroker wave, a topic Startuprad.io covers as part of its running work on European retail-investing infrastructure.
Public source context

Public information on Sino AG is drawn from its own investor-relations disclosures and annual reports at https://www.sino.de , from its https://de.wikipedia.org/wiki/Sino_AG , and from public reporting in Handelsblatt, Börsen-Zeitung, Manager Magazin, Finance Magnates and Tech.eu on Sino AG's Trade Republic exposure and its brokerage business. Reference material on the Trade Republic capital history is available through the Trade Republic entity record on Startuprad.io.

Startuprad.io coverage of Sino AG

Sino AG appears in the following Startuprad.io interviews, news and analysis.

Bonus Episode: Trade Republic becomes Germany’s most valuable Startup with 5.3 bn US$ valuation
Published: 26 May 2021
Last updated: 31 August 2026
Coverage type: Analysis
https://www.startuprad.io/post/bonus-episode-trade-republic-becomes-germany-s-most-valuable-startup-with-5-3-bn-us-valuation

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Canonical record: https://www.startuprad.io/entities/sino-ag