Most unions are affliated to NTUC. So even if you join an
inhouse union, you might be a member of the NTUC.
You can also join the NTUC as a General Branch member, if you do
not have an inhouse union.
The supermarket part is Fairprice, Cheers, X-press, Liberty.
The insurance part is Income.
The lifestyle part is NTUC Club, Costa Sands Resorts.
These come under the umbrella of the NTUC, but are separate
entities from the unions.