Marketing to the family office space can be a difficult yet rewarding exercise in the alternative investment arena.  by nature, family offices tend to be a bit more guarded and covered than your standard institution.  From our experience single family offices tend to be a tougher nut to crack than their multi family office counterparts. Both however tend to respond best to a softer approach (email followed up by phone work).

A large and robust family office database can be very helpful and increase your efficiency level and coverage into the family office space.  Most family office databases are global, with an option to purchase domestic and non domestic packages.

Related Resources:
Capital Hedge
Family Office Exchange
Third Party Marketing Association 
Family Office Portal