Web based single and multi-stage service auction bidding for construction projects with a variety of participants; cost management services for the construction industry; bid services, namely, providing an online network for contractors to receive leads and bidding opportunities by means of an online marketplace for the purpose of developing business in the construction industry

'auction':9 'base':2 'bid':10,26,39 'busi':52 'construct':12,24,55 'contractor':34 'cost':19 'develop':51 'industri':25,56 'lead':37 'manag':20 'marketplac':46 'mean':42 'multi':6 'multi-stag':5 'name':28 'network':32 'onlin':31,45 'opportun':40 'particip':18 'project':13 'provid':29 'purpos':49 'receiv':36 'servic':8,21,27 'singl':3 'stage':7 'varieti':16 'web':1

CPBID

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