On February 13th-14th, a MICROPROD Workshop with Nordic NSIs will take place in Copenhagen. As a follow-up to the 2nd Pilot NSI Workshop that took place in September last year, where key variables for improving and harmonizing productivity measurements have been discussed, this additional workshop aims at bringing on board Denmark, Norway, Finland and Sweden National Statistical Institutes (NSIs). Their experience will be invaluable for setting up a cross-country harmonized data infrastructure and meta-data catalogue, when legal and technical constraints complicate microdata linking in other countries. Discussions will focus on cross-country legal requirements, conditions for data access, and expanding the existing data infrastructure for micro level productivity measurement by adding variables chosen from available data sources that are linked within the Nordic NSIs’ database, and that are necessary to construct firm-level measures of intangibles. Then drawing on this experience, the aim is to be able to provide guidelines to other NSIs.