BC Building Trades
Bargaining Council of BC Building Trade Unions - BCBCBTU
CLC Labour Participation Department, United Way of the Lower Mainland
Canadian Labour Congress
UNIFOR Sectors (Transportation, Resources, etc.)
Research Tips: locate using any search engine (Google, Bing) by entering the word "association" along with a word describing the type of business or trade. Look on each website for listings of "partner " associations, publications, events, and news.