Truist Financial

Truist Financial dominates as the sixth-largest US bank with $530 billion in total assets, forged from the landmark $66 billion merger of SunTrust and BB&T in 2019—the largest US bank merger in a decade. This strategic combination yields a Southeast powerhouse serving 10 million households, outperforming #10 Capital One's $480 billion by over $50 billion in asset scale. The merger created $1.6 billion in annual cost synergies by 2022, demonstrating operational efficiency 15% higher than the average merged bank. Headquartered in Charlotte, NC, Truist balances regional strength with national reach, ranking #9 on this list.