YEARBOOK & DIRECTORY

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Saturday, 11th April 2026

Susquehanna International Securities Limited

Susquehanna International Group, LLP (SIG) is a global quantitative trading firm headquartered in Philadelphia. The Susquehanna Group of companies began operations in 1987 and opened their Irish office in 1990. The company established its European headquarters in Dublin in 1999 and has over 450 employees in Dublin working in Trading, Technology, Research, Operations, Compliance, Risk, Legal, Finance and HR. The company has a branch in Germany.

Through various operating companies, the Susquehanna Group offers proprietary trading and market-making firms trading a wide variety of products across a range of trading strategies, including options, exchange traded funds, commodities, power and energy, equity derivatives and convertible bonds.

There is extensive further information on Susquehanna International Securities Limited in Ireland available to subscribers.
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Senior Executives

  • John Keogh, Managing Director

Contact Details

Address: 4th Floor
George's Dock House, IFSC, Dublin 1
Phone: 353 1 802 8000 Fax: 353 1 802 8100
Web address: www.sig.com

IFSC Trading commenced: April 1999