Earlier quoted context omitted.
>Global 2000 company IT needs. Splunk is a good example of this. I've worked at several public and private muti-billion dollar orgs, and they all rant and rave about how good Splunk is over whatever else they were using. So, build more splunks. Maybe something that aggregates monitoring multiple servers. A plug and play Status Dashboard for a company's internal apps. Like this: https://www.google.com/appsstatus#hl=en…
If you knew the technologies/software that Fortune 2000 companies are spending the most on, you should build complementary products, or similar things that solve the same problems those products are solving?
I worked on many CRUD apps that had say 4 different groups of users. We made a library / system for determining what "level" a user is, based on what Active Directory roles the user is assigned. In the application, you can show or hide components based on this level. Making some sort of middle-ware that abstracts things for developers, so they don't have to think about things like AD, is a huge area of opportunity.