We support clients worldwide in markets that drive global trade, finance, and industrial activity. With active references across Europe, the Middle East, Africa, and Asia, our advisory footprint reflects both geographic reach and sectoral expertise. From energy and commodities to industrial and financial markets, we help businesses navigate regulatory environments, geopolitical challenges, and investment decisions with clarity and confidence.

Languages Spoken by Our Experts
With Dutch, English, German, Hungarian, Italian, and Russian spoken fluently among our experts
Years of Combined Experience
Our advisors unite decades of know-how across industries and geographies.
Countries of Combined Market Experience
Our advisors have delivered projects and built expertise across more than 30 countries.












Europe is the core of our client base, where we advise companies, investors, and institutions across more than 20 countries. Our experience covers industrial hubs, logistics corridors, and financial capitals, enabling us to deliver tailored solutions grounded in regional realities. From strategic market entry to long-term investment planning, we ensure clients remain competitive and resilient in Europe’s fast-changing economic landscape.

Explore a selection of our recent projects that reflect how Siller applies analytical thinking and practical expertise to complex business challenges.
🌐 Language: English | Deutsch | Magyar
Siller — Established 2015 Austria
Company Name: Siller Handels GmbH
Address: Gemeindeweg 47, 3422 Altenberg, Austria
Company Register Number: FN 442495 d
VAT Number: ATU69992868
Siller is the consulting brand of Siller GmbH.
Siller GmbH is a limited liability company under Austrian law. The information provided on this website is for general informational purposes only and does not constitute professional advice. Siller GmbH accepts no liability for any actions taken based on this information.
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Clarity. Direction. Results.
Independent perspectives on markets, transformation, and the systems shaping economies