CHICAGO — Greentarget has hired Betsy Hoag as director of research and planning in the firm’s Chicago office. Hoag will lead Greentarget’s research and marketing intelligence team and execute quantitative and qualitative research campaigns. Hoag has more than 20 years of experience in marketing, research, strategic planning and consulting, including the past nine years at Kairos Consumers, an international consumer and B2B research firm that she co-founded.

WASHINGTON — APCO Worldwide has hired public affairs and healthcare expert Jack Kalavritinos as a senior director. Kalavritinos most recently served as director for intergovernmental and external affairs for the US Department of Health and Human Services, Office of the Secretary.

SAN JOSE — Big Valley Marketing has added three new members to its team. Dave Reddy, formerly head of Weber Shandwick’s West Coast media team, joins as media & influencer practice head. Industry vet Marianna Vyridi has joined as client partner and Charlie Cooper, a longtime technology editor, has been hired as editor in chief.

WASHINGTON — Subject Matter alumnus Sarah Kennedy Hillmann has rejoined the firm as creative director. Hillman rejoins the Subject Matter team after a year as a Weber Shandwick senior copywriter. She was also a senior copywriter at Subject Matter before leaving the firm.

NEW YORK — Josh Clarkson has rejoined Prosek Partners as a VP. Clarkson spent four years with Prosek before spending the last 18 months at Gladstone Place Partners, where he focused on M&A, activist shareholder preparation and CEO-level corporate communications.

WASHINGTON — JPA Health has appointed advertising industry veteran Julien Jarreau as executive VP, creative director. Prior to joining JPA, Jarreau served as executive creative director of H4B Boston, a division of the Havas Health & You Network.

MIAMI — Ander & Co has promoted Bryna Winer to senior vice president. Winer previously served as a VP at Ander & Co since 2016.