Stick together as a company, in this case (6)
I believe the answer is:
cohere
'stick together' is the definition.
(to cohere is to stick or fit together)
'a company in this case' is the wordplay.
'a company' becomes 'co' (abbreviation).
'in this case' becomes 'here' (I've seen this in another clue).
'co'+'here'='COHERE'
'as' acts as a link.
(Other definitions for cohere that I've seen before include "Form a whole" , "Fuse together" , "Cling" , "Fit together" , "Even; without jerks" .)