Equeen,
I am only aware of the two that you mentioned: Concilio Nacional de Hermandades Latinas (CNHL) and the National Association of Latino Fraternal Organizations (NALFO). However, this does not mean that these are the only two that exist (obviously)
There are LGLO's that do have membership in either of these councils. You can go to the following sites for more information:
http://www.cnhl.com and/or
http://www.nalfo.org.
To find a listing of LGLO's, you can go to
http://www.latinogreeks.com and/or
http://www.latinagreeks.com 
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Sincerity, Loyalty, Unity
Sigma Lambda Upsilon: Hasta La Muerte!