A breakdown of a typical Attack Company/Platoon Task Organization is as follows:

8 AH-64D
CAPTAIN
1SG
SIP (CW3)

4 AH-64D ea
2 PLATOONS (each with)
Platoon Leader (2LT/1LT)
PSG (SFC)
7 Warrant Officers (WO1-CW3)
4 Crew Chiefs (PFC-SSG)