TA Associates, a global growth private equity firm, has promoted three staff members to principal. Elizabeth de Saint-Aignan was promoted to principal from vice president, and is based in the firm's Boston office. She focuses on TA's investments in technology-based companies. Dhiraj Poddar was promoted to principal from director, and works in the firm's Mumbai office supporting Indian operations. Patrick Sader was promoted to principal from senior vice president. He serves in the firm's London office, focusing on investments across Europe. Founded in 1968, TA leads buyouts and minority recapitalizations of profitable growth companies across a number of industries.