Where do new restaurants get their "tech" set ups done?

When someone is starting a new restaurant where do they go to get their branding, menus, website, uber eats, and POS systems set up? Has anyone had difficulty with this? Are there companies that do it all? Is there any interest/need in this?

I'm trying to set up a business model that offers this to restaurants and I'm trying to see if its a viable idea. Since I live in Houston wanted to gage the Houston area.