NEW YORK — Reevemark has been tapped to lead all PR and IR for BigBear.ai, an AI-powered software company, including its $1.57 billion merger with GigCapital4 (a SPAC) to go public. Reevemark’s team is led by Paul Caminiti and Delia Cannan, and includes Pamela Greene, Luc Herbowy, Michael Anderson and Davey Roberts.

NEW YORK — Magrino has been named the agency of record for Main Street Hospitality, M Social Times Square NY, Krista Kim, The Glenrothes and The Pale. The agency will work on creative programming and brand awareness development in the US for the clients through integrated public relations strategies and marketing campaigns.

BOSTON — Matter Communications has been named agency of record for Sage Dental Management, which provides business support to more than 65 dental practices. Matter is spearheading a fully integrated PR program to support Sage Dental’s 40-facility expansion into Florida and Georgia, recruiting efforts and new branding to attract patients of all ages. Matter is collaboratively supporting brand and creative design to bolster the company’s growth.