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Work +354 540 0300
Fax +354 540 0301
London, Reykjavik

Thorolfur Jonsson

Work +354 540 0300

Work Department

Managing Partner - Corporate


Main areas of practice are banking and finance, corporate finance and capital markets, corporate law, financial restructuring, litigation and arbitration, and M&A.


Thorolfur joined LOGOS in 1999-2004, and joined the firm again as a Partner in 2009, after five years with Kaupthing Bank. Thorolfur became the Managing Partner of LOGOS in 2019.


English and Danish.


The Icelandic Bar Association.


Thorolfur graduated from the University of Iceland with a cand.jur. degree in 1999, and qualified as an Attorney in 2000. He received his LL.M degree from Harvard Law School in 2002, and is a Certified Securities Broker since 2009. 


Banking, finance and capital markets

Within: Banking, finance and capital markets

LOGOS acts for an impressive list of clients including Domino’s Pizza Group and Deutsche Bank. Helga Óttarsdóttir, who jointly heads the department with Guðbjörg Helga Hjartardóttir and London-based Guðmundur Oddsson, took the lead in assisting Landsvirkjun with its debut US private placement in green bond format. Thórólfur Jónsson advised Kaupthing on the offering of Arion Bank’s shares in Iceland and Sweden. Benedikt Egill Árnason led a team handling complex financing arrangements for Síminn and Nordea Bank.

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Commercial, corporate and M&A

Within: Leading individuals

Thorolfur Jónsson - LOGOS

Within: Commercial, corporate and M&A

The ‘very experienced, knowledgeable and friendly’ lawyers at LOGOS utilise their ‘in-depth understanding of what domestic and international clients want’ in handling complex M&A deals. Ragnar Tómas Árnason and the team assisted Icelandic company Norvik with selling its timber industry companies in a number of jurisdictions. Thorolfur Jónsson advises on complex M&A transactions for clients such as Icelandair Hotels. Highly regarded for his corporate expertise, Guðmundur Oddsson, who is based in London, led on advice to Xantis Pharma on a number of acquisitions. The ‘very knowledgeable’  Heiðar Ásberg Atlason and Claire Broomhead are also recommended.

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