What else would you call smaller companies and products within a company?

Whatever they are! Using the literal word "brand" in public messaging is leaking the marketing team's lingo to customers.

	▲	tayo42 20 hours ago \| parent [-]
		Oh I see, you'd think they'd know better then to use jargon publicly...

inigyou 4 hours ago | parent | prev [-]

If your company has several brands, call them brands. But it's usually not like that.