brokerage firm vs securities firm

brokerage firm and securities firm both are nouns.

Word	Noun	Adjective	Verb	Adverb
brokerage firm	Yes	No	No	No
securities firm	Yes	No	No	No

As nouns, brokerage firm and securities firm are synonyms defined as:

brokerage firm and securities firm: a stock broker's business; charges a fee to act as intermediary between buyer and seller

Other synonyms of brokerage firm include brokerage.

brokerage firm (noun)	securities firm (noun)
a stock broker's business; charges a fee to act as intermediary between buyer and seller	a stock broker's business; charges a fee to act as intermediary between buyer and seller