EXHIBIT 21 LIST OF SUBSIDIARIES OF REDWOOD TRUST, INC. State of Incorporation Subsidiaries or Organization Sequoia Mortgage Funding Corporation Delaware Sequoia Mortgage Funding Corporation 2002-A Delaware Sequoia Mortgage Funding Corporation 2002-B Delaware Sequoia Mortgage Trust 1 Delaware Sequoia Mortgage Trust 2 Delaware Sequoia Mortgage Trust 5 Delaware Sequoia Mortgage Trust 6 Delaware Sequoia Mortgage Trust 7 Delaware Acacia CDO 1, Ltd. Cayman Islands RWT Holdings, Inc. Delaware Sequoia Residential Funding, Inc. Delaware Redwood Commercial Funding, Inc. Delaware Redwood Financial Services, Inc. Delaware Redwood Residential Funding, Inc. Delaware