One trick that I’ve learned is most people at larger companies have standardized email addresses, so all you need to find is one person in the company’s email, and you can guess anyone else’s based on their name.
Off topic: I love Axios - they have some top tier journalists, and I was introduced when Dan Primack (from fortunes termsheet originally) moved over. They do great newsletters on politics, m&a/VC, tech, and the future of work.
I'll throw my 2 cents in here for 2Do, which is basically a power user todo app with multiple sync options including iCloud, Dropbox, etc. Give it a shot!