Charlotte-based private-equity firm Frontier Capital has sold its stake in Peak 10 Inc. to McCarthy Capital Corp., a Nebraska manager of USD 500 million in private-equity assets and capital commitments. Frontier provides USD 5 million to USD 10 million per investment in companies throughout the Southeast and Mid-Atlantic regions. Peak 10 is a data centre operator and managed services provider which owns and operates facilities in nine markets. Its other major owner is private-equity firm Seaport Capital of New York.