Or:

SELECT

rb.OFFICE_ID,

rb.BINDER_NO,

rb.BINDER_ID

FROM dbo.REV_BINDERS AS rb

WHERE

rb.BINDER_NO IN

(

SELECT

rb.BINDER_NO

FROM dbo.REV_BINDERS AS rb

GROUP BY

rb.BINDER_NO

HAVING

COUNT_BIG(*) = 1

);

+-----------+-----------+-----------+

| OFFICE_ID | BINDER_NO | BINDER_ID |

+-----------+-----------+-----------+

| 2105110 | 108 | 5 |

| 2101110 | 106 | 265 |

+-----------+-----------+-----------+