My experience with (2) larger companies, and confirmed from conversations with friends, is that while you tend to have more support, you are often placed on individual siloed teams where you stay for years. I think the key benefit of smaller companies is that you can work across so many different aspects of the application. Process also tends to be less burdensome so you are able to devote more of your time to the text editor writing business logic.

Still, my experience and my circle is limited so I suspect some might have had the opposite experience.