Bid networks connect general contractors and subcontractors. They are priced by who the vendor expects to pay, which vendors rarely say plainly: some charge the GC and let subs respond free, others do the reverse. These tools run from invitation networks to enterprise program platforms.
Built around the sub and manufacturer-rep relationship, where most tools on this list start from the GC. It bundles a construction CRM, an ITB tool, estimating modules for building automation and security, and a takeoff module. Customers named on its site include Comfort Systems USA and Ferguson.
Best for: Mechanical, electrical and controls subs, and manufacturer reps tracking who is bidding what.
Priced by who sends the invitation. GCs fund the platform on custom quotes while subcontractors can respond for free, so it is the default for subs chasing large GCs and a poor fit for a small GC that sends a handful of invitations a year. Prequalification and financial-risk data (TradeTapp) are built in, which is the feature to compare against Procore and SmartBid.
Best for: Subcontractors invited by large GCs, and GCs with steady sub volume and a budget for a custom quote.
This finds work instead of managing bids. ConstructConnect says it covers 825,000+ active projects across 382 metro areas, so a sub can find a project without waiting for an invitation, which BuildingConnected and PlanHub largely depend on. It pays off for a sub that bids public and commercial work all year, and it adds little for a firm whose work comes from three repeat GCs.
Best for: Subs who need a steady supply of new public and commercial leads.
Aimed at large, complex capital programs with formal approvals; the vendor claims 2,500+ customers and 70,000+ projects. Bid packages link to the budget, which suits owners and GCs running multi-party programs. It is more platform than a contractor needs to send ten invitations a month.
Best for: Owners, program managers and large GCs running multi-party projects.
The reverse of BuildingConnected: GCs use it free and subcontractors pay, with the subscription price stepping up by the radius of projects you want to see. If you bid inside one metro area the 50-mile tier is the cheaper network; if you travel for work, each wider radius costs more.
Best for: Subcontractors who bid within a defined region, and GCs who want free access to a large sub pool.
Worth buying only as part of the wider Procore platform, where a winning bid converts straight into a subcontract or purchase order with budgets and contracts attached. Procore bills on annual construction volume, not on how many bids you run, so for a small GC it is one of the most expensive routes into bid management on this list.
Best for: Mid-size and larger GCs that want bidding connected to project financials.
Subs invited to bid or prequalify pay nothing; the GC pays an annual license that scales with users. The standard license includes the sub database, prequalification, unlimited online plan-room projects and the BidTabs comparison tool, with Procore and Autodesk BIM 360 integrations. Faxing to subs is available at 8 cents a page, and on-site training costs extra.
Best for: GCs that want invitations, prequalification and bid leveling in one license with a Procore or Autodesk link.