Complex sentence: He had a very charismatic personality which was well suited to the prestige of the Æolian-Skinner name; in fact his personal involvement secured many major contracts which were directly commissioned without any other competing bids.
Split into simpler sentences: He had a charismatic personality that was well suited to the prestige of the Æolian-Skinner name. In fact, his personal involvement secured many major contracts that were directly commissioned without competing bids.