Aliso Viejo-based Retention Education, a provider of language instruction materials for teaching English and Spanish, has closed a Series B round of funding, the firm said Wednesday. Amount of the funding was not disclosed. The funding came from MK Capital, Ascend Venture Group, Ironwood Equity Fund, and OCA Ventures. Retention Education markets its products under the name "Sed de Saber," and was founded in 2003. More information »