Quick answer
At a glance
PlanHub and ConstructionBids.ai solve different problems. PlanHub is a private GC-to-subcontractor bid network with a plan room, takeoff, and estimation add-ons — you bid work that general contractors invite you to. ConstructionBids.ai is public-sector bid discovery — it surfaces government and public-works solicitations across agencies. Subcontractors often use PlanHub for private GC work and a discovery tool for public bids. Verify current pricing with each.
Key takeaways
What you need to know
- PlanHub is a private bid network: GCs post projects and invite subs through a plan room; subs bid the work they're invited to.
- ConstructionBids.ai is public-sector bid discovery: it aggregates government and public-works solicitations across many agencies.
- PlanHub adds takeoff and estimation tools; ConstructionBids.ai focuses on finding and tracking the right opportunities.
- PlanHub is free for GCs; subcontractors pay (with paid takeoff/estimation add-ons). Confirm current pricing with each vendor.
- They're complementary — many contractors use a private network for GC work and a discovery tool for public bids.
Recommendation
Use ConstructionBids.ai when public agency discovery is the missing piece
If PlanHub covers private invitations but not enough public work, test ConstructionBids.ai for source-linked government bids across trades, agencies, regions, and deadlines.
Proof check
What to prove outside the PlanHub plan room
PlanHub alternatives convert when the reader sees the difference between private GC-to-sub bidding and direct public agency discovery.
- You need public agency bids beyond GC-to-sub invitations.
- Your team wants source-linked opportunities, deadline alerts, and bid-fit scoring by trade and region.
- You want to compare a public bid feed before adding another plan room workflow.
- Your pipeline is dominated by GC invitation and plan room workflows.
- You need subcontractor network participation more than public agency discovery.
- Your estimators already receive enough qualified private bid invites through PlanHub.
Use ConstructionBids.ai to measure whether public agency discovery adds qualified work beside PlanHub invitations.
Move beyond GC-to-sub invites into public agency bids
PlanHub is useful for GC-to-sub invitations and plan room workflows. ConstructionBids.ai helps contractors find public agency opportunities directly, with matching, source links, and alerts.
What PlanHub is
PlanHub (founded 2014, Orlando) is a cloud preconstruction bidding and plan-room platform connecting general contractors, subcontractors, and suppliers. GCs post projects and invite subs by trade; subs get notified, access plans and specs in the plan room, and submit bids. It also offers takeoff and estimation add-ons and tools for managing connections and tracking project activity.
- Model: private network — you bid what GCs in the network post and invite.
- Pricing: free for GCs; subcontractors pay, with paid takeoff/estimation add-ons.
- Strength: organizing private GC bid invitations, plans, and takeoff in one place.
What ConstructionBids.ai is
ConstructionBids.ai is a public-sector bid-discovery platform. Rather than a private network of GC-posted jobs, it aggregates public solicitations — government, agency, and public-works opportunities — across many sources, with filtering by trade and location and tools to track deadlines and addenda.
- Model: discovery — find public opportunities across agencies you'd otherwise miss.
- Strength: breadth of public-sector bid coverage and opportunity tracking.
Compare PlanHub invites against live public bid coverage
Search your trade and service area in ConstructionBids.ai to see which public agency opportunities are available before they become someone else's invite list.
Side by side
| Factor | PlanHub | ConstructionBids.ai |
|---|---|---|
| Core model | Private GC-to-sub network | Public-sector bid discovery |
| Bid source | Projects GCs post to the network | Government/public solicitations across agencies |
| Plan room / takeoff | Yes (takeoff/estimation add-ons) | Focus is discovery + tracking |
| GC pricing | Free | n/a (contractor-side discovery) |
| Sub pricing | Paid (+ add-ons) | See current pricing |
(Capabilities and pricing change — verify current details with each.)
Which one fits
- Most of your work comes from private GCs? A network like PlanHub keeps those invitations, plans, and takeoffs organized.
- You bid (or want to bid) public-sector work? ConstructionBids.ai surfaces government solicitations a private network won't show you.
- Both? Common. Use the private network for GC-invited work and a discovery tool for public bids — they don't overlap much in source.
Bottom line
PlanHub and ConstructionBids.ai aren't really head-to-head — PlanHub is a private GC-to-sub network with takeoff, and ConstructionBids.ai is public-sector bid discovery. Pick based on where your work comes from, and recognize that many contractors run both. If public bids are part of your plan, start with how to find government construction contracts.
Related resources
- How to find government construction contracts
- Best construction bid software guide
- Unit price vs lump sum contracts
Product names and trademarks belong to their respective owners. Verify current pricing, features, and availability with each vendor before making a decision.
FAQ
Frequently Asked Questions
What is the difference between PlanHub and ConstructionBids.ai?
PlanHub is a private bid network where general contractors post projects and invite subcontractors to bid through a plan room, with takeoff and estimation add-ons. ConstructionBids.ai is a public-sector bid-discovery platform that surfaces government and public-works solicitations across many agencies. One is a private GC-to-sub marketplace; the other finds public opportunities.
Is ConstructionBids.ai a PlanHub alternative?
Only partially — they overlap on "help me find work" but serve different sources. PlanHub focuses on private projects GCs post to its network; ConstructionBids.ai focuses on public-sector solicitations. Many subs use a private network like PlanHub and a public-bid discovery tool together.
How much does PlanHub cost?
PlanHub is free and unlimited for general contractors. Subcontractors pay, with paid add-ons such as takeoff and estimation, and subscription pricing that varies by trade and coverage. Confirm current pricing directly with PlanHub.
Which should a subcontractor choose?
If most of your work comes from private general contractors, a network like PlanHub keeps those invitations and plans organized. If you bid or want to bid public-sector work, a discovery tool like ConstructionBids.ai surfaces government solicitations you wouldn't see in a private network. Many subs use both.
Does PlanHub include public government bids?
PlanHub centers on private projects that general contractors post to its network and invite subs to bid. Public-sector solicitations across government agencies are a different source — that's the gap a public bid-discovery tool like ConstructionBids.ai is built to fill.
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