Washington Trust Bank, also known as WTB, is a financial institution that offers a range of lending and depository products. It is one of the largest, privately-owned, commercial banks in the Pacific Northwest. The bank provides personal and business savings and checking accounts. Washington Trust Bank offers home equity and vehicle loans. The bank maintains offices in Washington, Idaho, Oregon and Utah. Operational since 1902, it manages a staff of more than 695 employees. Washington Trust Bank offers fraud prevention and retirement planning services. The bank also provides a line of investment products, such as mutual funds and annuities through PrimeVest Financial Services. It operates a portfolio management group.