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Welcome to Siller

Award-winning benchmarking

Clarity.
Direction.
Results.

Independent Strategic and Financial Advisory for high-stakes decisions.

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EXPERTISE

Independent Strategic and Financial Advisory

One independent team combining strategy, finance, regulation, decision science and digital capabilities for investors, corporates and public institutions.

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Independent · Benchmark-driven · Decision-ready
In numbers

A Decade in Numbers

90+
Projects delivered across Europe and international markets
€5B+
Estimated combined project and portfolio value advised
15+
Client industries served through advisory engagements
100%
Privately owned and fully independent consultancy
40+
Energy transition projects advised (BESS, renewables, flexibility)
25+
Professionals and specialist experts in our team
Advisory focus

Current Advisory Focus and Ongoing Client Dialogues

Global presence

Serving Clients Across Key International Hubs

HeadquartersCore marketsClient references, EuropeInternational references
30+
Countries of combined market experience
4
Regions: Europe, Middle East, Africa and Asia
6+
Working languages across our expert team
Our clients

Selected Client References

0
CEE client
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Insights, capabilities and people

Insights

Latest Thinking

Independent perspectives on energy markets, valuation, regulation and decision-making for boards and investors.

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