MARKHAM, Ontario, Aug. 05, 2025 (GLOBE NEWSWIRE) -- Sienna Senior Living Inc. (“Sienna” or the “Company”) (TSX: SIA) announced the confirmation by Dominion Bond Rating Service (“DBRS”) of the Company’s BBB Issuer Rating and ratings on its Senior Unsecured Debentures, with trends remaining “Stable”. “As we continue on our growth journey, we are pleased to maintain a strong credit rating, which will support our platform expansion and ability to access capital at attractive terms,” said Nitin Jain, President a ...