What technology is used to search for quotes and company names in the text of an article?

Question

Parsing

Hello.

input: article (from 1000 to ~3000 characters)
output: article + tags of companies and quotes

Description:
From the parser there is a stream of articles, there is also a database of quotes and company names to search for.
In these articles, you need to find all quotes and company names in accordance with the collected database, and place tags.
The question actually is what technology can implement such a full-text search?
(All the obvious and found solutions are needed for the search line on the site and the like, and they are "heavy". I would like to know if there is an "easier" solution.)
I will ask without negativity and answers like: "google to help" friends.