Open google places api, place id page

https://developers.google.com/places/place-id

Type in the name of the business you want to find a link for

Then click on the name from the dropdown list

You can see the place id code now

Highlight just that code and copy it

The url you want is like

https://search.google.com/local/writereview?placeid=ChIJcQEaGko-c2sRvWXCH91cKH0

but replace the code with yours instead of the jezweb one.

So you get this bit

https://search.google.com/local/writereview?placeid=

and then put your places code bit after the equals sign, no spaces!

If you send someone that link, or you could use a url shortener if you want, then they will get a popup on their screen from the places page for the business like this.

Thanks to getfivestars for this tip