searchable business directory list / address book by name & category

site: https://sanmateodowntown.org/directory

i need to create a simple, searchable business directory for a non-profit downtown association. i have a set up a page with all 750 businesses but i can’t figure out how to make it searchable by business name or business category. the database contains these fields:

business name (with a hyperlink to the website for each business)
street address
phone number
category (type of business)

is there a plug-in i could use to import this database (spreadsheet) and display it as a directory that is searchable? no membership or login required to access this website.

thank you in advance for any suggestions.

nancy