The category "<company_type-pl>" can be expressed as follows:

<company_type-pl>

<company_noun-pl>

<css_company_echelon>

<specific_company_type-sing> <company_noun-pl>

<specific_squad_type-sing> <company_noun-pl>

<specific_vehicle_type-sing> <company_noun-pl>

<team_or_group_company_echelon>