Prospect Capital is a closed-end investment fund with holdings in the consumer, food, health care, and manufacturing sectors, among others. The company targets privately held middle-market firms with annual revenues of less than $500 million; it also considers thinly traded public companies or turnaround situtations. Prospect's portfolio includes interests in more than 130 companies, mainly through senior loans and mezzanine debt. The company also makes equity and secured debt investments. Typically investing from $5 million to $50 million per transaction, Prospect is a long-term investor that maintains regular contact with its portfolio company's management and participates in their board meetings.