8 of the world’s most exclusive clubs — can you join? by Colleen Kane @FortuneMagazine January 30, 2015, 6:02 AM EDT E-mail Tweet Facebook Google Plus Linkedin Share icons These groups are not your university’s alumni club. Certain national and international associations and business groups command a high price of entry, high prestige, and members with high power — but they often keep a low profile, if their proceedings or membership rosters are not downright secret. Want to join? If you have to ask, you’re not invited. We can reveal, however, that one of them — the Alfalfa Club — is holding its annual banquet on Saturday night. Head to Washington, D.C. if you want a peek at the invitees.