Mr Thorolfur Jonsson > LOGOS > Reykjavik, Iceland > Lawyer Profile


Work Department

Banking and finance • Corporate and commercial law • Corporate finance and capital markets • Dispute resolution and litigation • Financial restructuring and insolvency • Mergers and acquisitions




Supreme Court Attorney Thorolfur worked at LOGOS between 1999-2004, and joined the firm again as a Partner in 2009, after five years with Kaupthing Bank. Thorolfur was the Managing Partner of LOGOS between 2019-2022.


English • Danish


The Icelandic Bar Association • IBA (International Bar Association)


Thorolfur graduated from the University of Iceland with a cand.jur. degree in 1999, qualified as an Attorney in 2000 and a Supreme Court Attorney in 2016. He received his LL.M. degree from Harvard Law School in 2002, and is a Certified Securities Broker since 2009.

Lawyer Rankings

Iceland > Commercial, corporate and M&A

(Leading individuals)

Thórólfur Jónsson – LOGOS

Corporate, commercial and M&A remains a core focus at LOGOS, offering clients a full-service across all aspects of the sectors. Large scale M&A transactions is a key discipline of the ‘highly skilled team’, on which the team act for market-leading domestic and international firms including Origo, Arion Bank and Siminn. The group acted on a seller-side mandate to advise the latter on an acquisition by private investment fund, Arian – one of the largest M&A transactions in Icelandic history. The practice is jointly headed by three practitioners: Benedikt Egill Árnason who acts for leading corporate clients and private equity firms, M&A and restructurings specialist Guðbjörg Helga Hjartardóttir, and dual-qualified partner Guðmundur Oddsson who has headed the London office since 2006. Thórólfur Jónsson is also recommended and regularly handles corporate restructurings.

Iceland > Banking, finance and capital markets

(Leading individuals)

Thórólfur Jónsson –LOGOS

LOGOS remains a pre-eminent domestic firm for banking, finance and capital markets mandates. The team specialises in work across both high-end capital markets issues and regulatory matters regarding funding and borrowing. In terms of significant clients, the firm’s roster spans both domestic and international financial institutions: Arion Bank, Landsbankinn, Citigroup and Goldman Sachs are key examples. Team co-head Óttar Pálsson specialises in M&A-related work and his practice has recently focused on acting as local counsel for international firms on Icelandic matters; in 2022, he led on a cross-border merger by way of acquisition. Fellow co-head Thórólfur Jónsson focuses on securities regulations and banking mandates.