Balthazar is a Partner at IMAP Netherlands, which he founded alongside Remco Schouten on 1st April 2005. Previous to this, he worked at KPMG Corporate Finance, where he advised on international and domestic complex acquisitions and business successions in various sectors, focusing on medium-sized enterprises. Balthazar began his involvement in M&A in 1993, working for supermarket chain Unigro (Laurus) and further developing his expertise with retailer Vendex/KBB, where approximately 100 new stores for one of the brands, Bruna, were opened over a 3 year period. 

Balthazar has conducted training courses on buying and selling companies for entrepreneurs, account managers with banks, accountants, and officials within industry bodies and has experience as a Guest Lecturer of Rotterdam School of Management at the Erasmus University in Rotterdam.