Brookline Bancorp is a multi-bank holding company operating three subsidiary banks — Brookline Bank (Greater Boston), BankRI (Greater Providence), and PCSB Bank (Lower Hudson Valley, NY) — with a combined 63 branch offices. Brookline focuses on commercial and retail banking for small- and mid-sized businesses and individuals, positioning itself as a relationship-driven alternative to large national banks. The loan portfolio is heavily commercial, with commercial loans and leases representing roughly 84% of total loans. Brookline also operates Eastern Funding, a nationwide equipment finance unit that lends primarily to small businesses such as laundromats and fitness centers, and Clarendon Private, a registered investment advisor managing roughly $350M in AUM. Brookline's core business model is a traditional spread lender: it takes in customer deposits and lends at higher rates, with NIM as the primary profitability driver. Commercial loans are originated and managed by relationship bankers, while retail customers are served through branches and digital channels. In December 2024, Brookline announced a merger of equals with Berkshire Hills Bancorp; the combined company would have roughly $24B in total assets, with Brookline stockholders owning approximately 45% of the combined entity. The deal is expected to close in the second half of 2025.