Cyrve is a tiny consulting firm founded by Moshe Weitzman. Moshe has a long time core contributor to Drupal. View Moshe's Drupal CV on drupal.org.
Cyrve specializes in migrating your data into Drupal. We've migrated from Wordpress, Moveable Type, legacy databases on Oracle, MSSQL, Postgress, NITF, flat HTML files, and on and on. This is painstaking work, with emphasis on pain. Just hand us your source data and destination database and we'll architect the migration.