When our CEO added me to our angel list account, I recieved this email from them:
Hi [My Name],
I'm building an AngelList profile for [our company] and need your help.
Can you do me a favor and confirm that you're a team member by clicking here:
https://angel.co/l/[shortlink]
To prove that you're the real [My Name] you will be asked to create an account if you don't already have one.
This is important to us; confirming that you're a team member will help us build our profile.
Thanks,
[CEO's Name]
P.S. If you would like to visit our profile first, go here: https://angel.co/[our company]
They're really aggressive about impersonating folks, my CEO didn't write that and was very suprised by the content of the email.