I have met all NPHC member organizations.

When it comes to other councils, though, I have a lot to go...

NPC:
Phi Sigma Sigma

NALFO/MCGLO:
I haven't met any except Sigma Lambda Gamma

NIC:
a lot.

Interesting. I wont ask you where you live, but I do find it surprising that you wouldnt have met anyone via work, extended networks, etc (but then again, if you dont hang out or live near anyone who would be in one, makes sense).

It couldve very well not been on your radar. I didn't know anyone in a sorority (across any council) until I was in HS, and not an NPC one until my junior year (my first boss via an internship was a Phi Sigma Sigma).

I've mentioned before that literally everyone on my street while growing up was a member of a sorority or fraternity. There were also several sororities at my school. So, I have NOT met members of:

NPC:
Alpha Gamma Delta
Alpha Sigma Tau

NPHC:
Sigma Gamma Rho

IFC:
Acacia
Alpha Chi Rho
Alpha Delta Gamma
Alpha Delta Phi
Alpha Gamma Rho
Alpha Gamma Sigma
Alpha Kappa Lambda
Alpha Phi Alpha
Alpha Phi Delta
Beta Chi Theta
Beta Sigma Psi
Delta Epsilon Psi
Delta Psi
Delta Sigma Phi
FarmHouse
Iota Nu Delta
Iota Phi Theta
Phi Lambda Chi
Phi Mu Delta
Phi Sigma Kappa
Phi Sigma Phi
Sigma Beta Rho
Sigma Lambda Beta
Sigma Phi Delta
Sigma Phi Epsilon
Sigma Phi Society
Sigma Pi
Sigma Tau Gamma
Tau Delta Phi
Tau Phi Sigma
Theta Delta Chi
Zeta Psi


To my knowledge, I have never met anyone from a multicultural society.

(The IFC part was by far the hardest to do!)