A lot of people when choosing a customer communication&support solution, seem to be comparing Intercom to Zendesk most often.
Both solutions work especially great for mid and large enterprises.
The way I see it:
Intercom is preferable by SaaS companies since it offers in-app messenger and email marketing capabilities.
Zendesk is better for companies with multiple customer support teams that have a single function and which need an extensive ticketing and call center functionality.
Check out the article below to see which solution may better suit your needs:
Have you used Intercom/Zendesk or even both before?