Does the phrase "Legacy brands" just mean "companies that are inherited from generation to generation" or there is another particular meaning?
Here is the context: The writer is wanting to know what other companies use for email responses - do they use a auto-reply or a personal reply?
The first thing to do was decide which companies to send these out to. This was probably the most subjective part of the experiment. One hundred companies seems like a lot until you start considering the many thousands of potential companies to pick from.
I knew we wanted a lot of SaaS companies and a good mix of technology startups. I also wanted a range of small, medium, and large sized organizations. But just for good measure, some non-tech and legacy brands could be interesting. A lot these companies have been thinking about customer service for generations. I added a few hardware companies, some airlines.
Wikipedia showed this result https://en.wikipedia.org/wiki/Brand_legacy But I don't think it's appliable to my case.