Try this:

SELECT c1.*

FROM [CPACONTACTS].[dbo].[CPACONTACTS2] c1

INNER JOIN (SELECT COMPANY

FROM [CPACONTACTS].[dbo].[CPACONTACTS2]

GROUP BY COMPANY

HAVING COUNT(*) > 1) c2

ON c1.COMPANY = c2.COMPANY

ORDER BY c1.COMPANY

EDIT: added ORDER BY clause to my original code. Makes it easier to see the dups.