Virtuoso Performance
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The Drupal Expert Is In

Virtuoso Performance is the nom de guerre of Mike Ryan, primary developer of the Drupal 6/7 Migrate module, and a current subsystem maintainer of Drupal 8's core migration system, as well as creator and maintainer of D8 contrib modules such as migrate_plus and migrate_tools. Mike has been working on Drupal migration projects for 8 years now, and in that time has dealt with many diverse scenarios for moving data into Drupal.