The account was last up for review in 2020 and saw OMD reappointed.
Cosgrove-Moloney returns from Tokyo, where she served as GM of Special.
Last week, the OMG agency also won El Jannah's digital media and SEO account.
Villella has started in the role, based in Sydney and reporting to Candice Veasey.
This expansion marks a new chapter in the agency's 27-year history.
"Our goal is to become a household name, not just within men's lifestyle publishing, but publishing in general."
Reunion Agency, launched in June 2023, is co-led by Hind and Stephen Knowles.
Notes of "smoked fish skin, unwashed skin, and greasy hair."
Australia's best-performing campaign, coming in at #11, was Curing Homesickness by CHEP Network in Melbourne.
The incumbent is independent agency Half Dome, which has serviced the account since August 2021.
Simon Joyce: "Deep Rising isn't just a campaign; it's a vital call to action to safeguard our planet's future."
Chris Rehn: "It’s important we continue talking about how to make Australia a more inclusive society."
The agency will be the sole channel partner for Aryma Labs.
Nutman and Hunt from Common Ventures share their perspectives, thoughts and opinions.
The independent agency will build a new SEO strategy and increase organic traffic to drive performance for their clinics globally.
El Jannah's head of marketing called the collaboration a "significant milestone in enhancing the brand's presence and digital footprint."
There has also been a "massive dip" in buying homegrown brands.
Zenith will be charged with using data and tech to drive high net worth car buyers to dealerships.
