| BMW Bank of North America | Utah |
| BNA Bank | Mississippi |
| BNA Federal Credit Union | Virginia |
| BNB Hana Bank | New Jersey |
| BNC National Bank | Arizona |
| BNY Mellon | New York |
| BNY Mellon | Pennsylvania |
| BNY Mellon Trust of Delaware | Delaware |
| Board of Water Supply Federal Credit Union | Hawaii |
| Bodcaw Bank | Arkansas |
| Boeing Employees Credit Union | Washington |
| Boeing Helicopters Credit Union | Pennsylvania |
| Boelus State Bank | Nebraska |
| Bofi Federal Bank | California |
| Bogota Savings Bank | New Jersey |
| Boiling Springs Savings Bank | New Jersey |
| Boise Southern Employees Federal Credit Union | Louisiana |
| BOK Financial | Oklahoma |
| Bonanza Valley State Bank | Minnesota |
| BOND Community Federal Credit Union | Georgia |
| Bonduel State Bank | Wisconsin |
| Bonneville Bank | Utah |
| Boone Bank & Trust Co. | Iowa |
| Boonville Federal Savings Bank | Indiana |
| Bootstrap Federal Credit Union | New York |
| BOPTI Federal Credit Union | California |
| Border Federal Credit Union | Texas |
| Border State Bank | Minnesota |
| Borger Federal Credit Union | Texas |
| Bossier Federal Credit Union | Louisiana |
| Boston Customs Federal Credit Union | Massachusetts |
| Boston Firefighters Credit Union | Massachusetts |
| Boston Private Bank & Trust Company | Massachusetts |
| Boston Trust & Investment Management Company | Massachusetts |
| Bothwell Hospital Employees Credit Union | Missouri |
| Boulder Valley Credit Union | Colorado |
| Boulevard Bank | Missouri |
| Boulevard Federal Credit Union | New York |
| Boundary Waters Bank | Minnesota |
| Bourns Employees Federal Credit Union | California |
| Bowater Employees Credit Union | Tennessee |
| Box Butte Public Employees Federal Credit Union | Nebraska |
| Box Elder County Federal Credit Union | Utah |
| Boyds Federal Credit Union | Maryland |
| Boys Town Federal Credit Union | Nebraska |
| BP Federal Credit Union | Texas |
| BPS Federal Credit Union | Texas |
| Bradford Area Federal Credit Union | Pennsylvania |
| Bradford Area School Employees Federal Credit Union | Pennsylvania |
| Bradford National Bank | Illinois |
| Bradken Credit Union | Kansas |
| Brady National Bank | Texas |
| Bragg Mutual Federal Credit Union | North Carolina |
| Brainerd BN Credit Union | Minnesota |
| Brainerd Savings and Loan Association | Minnesota |
| Branch 6000 Credit Union | New York |
| BrandBank | Georgia |
| Brannen Bank | Florida |
| Branson Bank | Missouri |
| Brantley Bank and Trust Co. | Alabama |
| Brantwood Credit Union | Wisconsin |
| Brassies Credit Union | Alabama |
| Brazos Community Credit Union | Texas |
| Brazos National Bank | Texas |
| Brazosport Teachers Federal Credit Union | Texas |
| Brazos Valley Schools Credit Union | Texas |
| BRECO Federal Credit Union | Louisiana |
| Breda Savings Bank | Iowa |
| Bremen Bank and Trust Company | Missouri |
| Bremer Bank | Minnesota |
| Brenham National Bank | Texas |
| Brentwood Bank | Pennsylvania |
| Brentwood Baptist Church Federal Credit Union | Texas |
| Brewer Federal Credit Union | Maine |
| Brewery Credit Union | Wisconsin |
| Brewster Federal Credit Union | Ohio |
| Brewton Mill Federal Credit Union | Alabama |
| Brickell Bank | Florida |
| Brickyard Bank | Illinois |
| Bridge City State Bank | Texas |
| Bridge Community Bank | Iowa |
| Bridge Credit Union | Ohio |
| Bridgeport City Employees Federal Credit Union | Connecticut |
| Bridgeport Fairfield Teachers Federal Credit Union | Connecticut |
| Bridgeport Hospital Federal Credit Union | Connecticut |
| Bridgeport Police Federal Credit Union | Connecticut |
| Bridgeport Post Office Federal Credit Union | Connecticut |
| Bridgeton Onized Federal Credit Union | New Jersey |
| Bridgeview Bank Group | Illinois |
| Bridgewater Bank | Minnesota |
| Bridgewater Credit Union | Massachusetts |
| Bridgewater Savings Bank | Massachusetts |
| Bridgeway Federal Credit Union | New York |
| Bright Hope Federal Credit Union | Pennsylvania |
| Brighton Bank | Tennessee |
| Brighton Bank | Utah |
| BrightStar Credit Union | Florida |
| Brightview Federal Credit Union | Mississippi |
| Brimfield Bank | Illinois |
| Bristol County Savings Bank | Massachusetts |