Ondeo Nalco Acquired By Investor Group ● Private equity firms The Blackstone Group, Apollo Management LP and Goldman Sachs Capital Partners collectively signed a $4.2 billion agreement to acquire Ondeo Nalco from Suez SA. Naperville, IL-based Ondeo Nalco generated revenues of more than $2.6 billion in 2002, according to company executives. “We are very pleased to reach an agreement with Suez, with whom we have had a long-standing relationship, to purchase Nalco,” said Stephen Schw...