Lex Mundi
Lex Mundi is the world's leading association of independent law firms (www.lexmundi.org). The members consist of 160 of the world’s leading law firms which provide access to 17,000 lawyers over the entire world. Each member firm is among the largest and most established in its jurisdiction. Lex Mundi makes resources available for both member firms and non-members. Some resources are available on the homepage while certain publications can be sent on request via email to Lex Mundi at: lexmundi@lexmundi.org.

Available resources include:

Catalogue of the member firms with an overview of the relevant practice areas.
The catalogue contains addresses and individual contact details. The practice area overview contains the names of more than 5,000 lawyers divided into 39 practice areas. 

Business guide
Lex Mundi members provide ”Guides to Doing Business” for their respective jurisdictions. There are approximately 70 handbooks available on Lex Mundi’s homepage. Thommessen has written the guide for Norway.