Laurie Deaton joined Loomis Sayles institutional services group as a senior saleswoman, said spokeswoman Erin Heard. The new position is based in San Francisco. Ms. Deaton will focus on existing and prospective public and corporate clients as well as on foundations and endowments on the West Coast. Ms. Deaton was a vice president of business development with Wellington Management. Wellington spokeswoman Lisa D. Finkel declined to comment.