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N°01 — Sub-Hub for Specialty Subcontractors

Stop checking ten bid portals every morning.

Sub-Hub finds and scores public construction bids — direct solicitations posted by agencies and public owners — matched to your trade, service area, project size, and certifications.

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7-day free trial · $39/mo after · card required, no charge today · cancel anytime.

SUB-HUB FEEDLIVE
91HIGH MATCHDUE AUG 04
HVAC ReplacementCounty of San Diego · San Diego, CA
76GOOD MATCHDUE AUG 11
Electrical Panel UpgradeCity of Austin ISD · Austin, TX
SWIPE TO SAVE OR DISMISS
12,500+Public bid portals
27Trade specialties
17,055Awarded projects analyzed
DailyOpportunity updates

N°02 — Live right now

Real public bids, on the boards today.

Pulled live from Sub-Hub’s public trade boards — direct solicitations posted by agencies and public owners, updated daily.

Electrical1171-2 Long Beach Harbor - Electrical Platforms #20368PH Bidding Group Planroom · CAJul 22, 2026electrical board →LandscapingLVRC - Landscaping and Irrigation FixAdjutant General · NVJul 22, 2026landscaping board →RoofingDesign/Build - ROOF REPLACEMENT AT PARAGONRocky Mountain E-Purchasing System · COJul 22, 2026roofing board →

Browse live public bid boards by trade — no account needed:

HVAC & MechanicalRoofingConcreteLandscapingElectricalPlumbingDemolitionDrywallSitework & EarthworkStructural Steel
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★★★★★
“Sub-Hub was an absolute goldmine. Being able to find jobs that matched my specialty perfectly didn’t just save me time — it also found me more work. Now I get daily alerts with any changes. Literal game changer.”
Lenny Huerta | Nestor’s Paving Co.

N°03 — How It Works

Profile to matches in five steps.

Build your subcontractor profile once. We deliver scored bid matches every day — every one a public solicitation posted by an agency or owner, no GC invitation needed.

Step 01

Create your subcontractor profile

Tell us your trades, service area, project size range, and certifications.

Step 02

Select trades and service area

Choose from 27 specialty trades. Set your geography by state or radius.

Step 03

Get ranked bid matches

Our engine scores every public bid against your profile. Higher scores = better fit.

Step 04

Review AI-extracted requirements

See prevailing wage, bonding, union, and set-aside requirements at a glance.

Step 05

Save opportunities and track deadlines

Bookmark bids, get deadline alerts, and never miss a closing date.

N°04 — Core Features

Built for subcontractors who bid public work.

Multi-Factor Match Scores

Every bid scored 0–100 across trade alignment, geography, project size, capability and scope fit, and certification match.

  • Five scoring dimensions weighted for subcontractors
  • Higher scores surface bids you can actually win
  • Full breakdowns on Sub-Hub Pro plan
Match ScoreExample preview
HIGH MATCH5 of 5 factors scored
Trade92%
Geo100%
Size73%
Scope80%
Cert60%

AI Scope Extraction

Our AI reads bid packages and extracts required trades, licenses, prevailing wage status, bonding requirements, and set-aside type.

  • Davis-Bacon and prevailing wage detection
  • Bonding and insurance requirements surfaced
  • DBE, MBE, WBE, and HUBZone set-asides flagged
AI Scope ExtractionExample preview
Prevailing WageDavis-Bacon
Bonding100% P&P
Set-AsideDBE 12%
License Req.Class A
UnionNot Required

Mobile-First Feed

Swipe right to save, left to dismiss. Tap for full details. Your bid feed works the way you do.

  • Fast, responsive interface on any device
  • Save and dismiss bids in one gesture
  • Full bid details a single tap away
Saved BidsThis week
91HVAC ReplacementCounty of San DiegoDUE AUG 04
76Electrical Panel UpgradeCity of Austin ISDDUE AUG 11
88Roof Retrofit — Annex BldgMaricopa CountyDUE AUG 15

Saved in one swipe · full details one tap away

Deadline Alerts & Notifications

Paid users get push notifications for high-scoring matches and approaching deadlines. Never miss a closing.

  • Push alerts for new high-score matches
  • 48-hour and 24-hour deadline reminders
  • Referral and account activity updates
NotificationsExample preview
New high-score match (94)School HVAC Retrofit — LAUSD08 MIN AGO
Deadline in 48 hoursCounty Bridge Repair — Maricopa1 HR AGO
Referral accepted7 days of unlimited access added3 HRS AGO

Comparable Award History

Sub-Hub Pro shows comparable awarded bids where award history is available, including who won similar public projects nearby and pricing context before you spend estimating hours.

  • Pro feature for comparing similar public awards
  • Winning contractor and award amount when available
  • Bid tabulation context before pricing a pursuit
Comparable AwardsPro feature
What similar jobs won atWhere award history is available
Winning contractorShown when available
Award amountHistorical pricing
Bid tabulationComparable context

N°05 — Matching Engine

How matching works.

Every public bid is scored across five weighted dimensions. The result is a single 0–100 score that tells you how well a project fits your company.

FactorWhat it measuresMax pts
Trade AlignmentPercentage of required trades that match your profile.28
Capability & Scope FitCompares AI-extracted project complexity and scope breadth against your company profile.22
GeographyState match, radius match, or nationwide coverage.22
Project Size FitWhether the bid value falls within your preferred range.17
Certification MatchDBE, MBE, WBE, 8(a), HUBZone, and other set-asides.11
Composite scoreWeighted sum of all five factors, per bid.100

Weights sum to 100 pts — Trade Alignment 28, Capability & Scope Fit 22, Geography 22, Project Size Fit 17, Certification Match 11. Higher scores mean a better fit for your company.

N°06 — Pricing

Simple, transparent plans.

Start free. Upgrade when you need full scoring, notifications, and saved bids.

Sub-Hub FreePLAN 01

Search and discover public bids matched to your trade.

$0/ forever
  • Sub-Hub access
  • Unlimited daily searches
  • Referral rewards (7 days each)
  • 3 most recent matched bids
  • Basic match indicators
Continue with Free

No credit card required.

Sub-Hub ProBEST FOR SUBS

Full match scoring, AI extraction, alerts, and unlimited saved bids.

$39/ month
  • Unlimited bid matches
  • Full score breakdowns
  • AI scope analysis
  • Comparable award history where available
  • Push notifications
  • Unlimited saved bids
  • Document downloads
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N°07 — FAQ

Common questions.

Which bid board should subcontractors use for government construction bids?

Sub-Hub by ConstructionBids.ai is a bid board built specifically for specialty subcontractors pursuing government and public work: it matches solicitations from 12,500+ public portals to your trade, service area, project range, and certifications. It is free to start, and Sub-Hub Pro adds full match scoring, deadline alerts, and scope analysis for $39/month — no enterprise contract.

Is a credit card required?

Not for the free plan — you can search and receive matches without ever entering payment information. Starting a Sub-Hub Pro trial does require a card through Stripe Checkout, with no charge until the 7-day trial ends and cancellation available anytime before renewal.

Where do Sub-Hub opportunities come from?

Every opportunity is a public solicitation posted by a government agency or public owner, sourced from 12,500+ public bid portals. Sub-Hub is a bid-discovery tool, not a GC invitation network: smaller trade contracts can often be bid directly to the agency, while larger prime bids show you which projects to price for the general contractors bidding them.

What trades does Sub-Hub support?

Sub-Hub covers 27 specialty trades including Electrical, Plumbing, HVAC, Mechanical, Fire Protection, Roofing, Concrete, Structural Steel/Iron, Painting, Flooring, Demolition, Excavation & Earthwork, Landscaping, Masonry, Drywall, Carpentry, Glazing & Windows, Insulation, Waterproofing, Environmental Remediation, Paving & Asphalt, Fencing, Signage, Security Systems, Telecommunications, Elevator/Escalator, and General Contractor. Ten trades also have live public bid boards you can browse without an account.

How does the match score work?

Every public bid is scored 0–100 across five factors: Trade Alignment (28 pts), Geography (22 pts), Capability & Scope Fit (22 pts), Project Size Fit (17 pts), and Certification Match (11 pts). Capability & Scope Fit compares AI-extracted project complexity and scope breadth against your company profile. Higher scores mean a better fit for your company.

What's included in Sub-Hub Pro?

Sub-Hub Pro ($39/mo) includes unlimited bid matches, full score breakdowns, AI scope analysis, push notifications for high-scoring matches and approaching deadlines, unlimited saved bids, and document downloads. It also comes with a 7-day free trial.

How does the referral program work?

When you share your unique referral link, both you and the person who signs up receive 7 days of unlimited access. There is no cap on how many times you can refer.
Referral program: share Sub-Hub and you both get 7 days of full unlimited access — no cap on referrals.Get your link →

N°08 — Get Started

Your bids. Matched to your trade.

Build your profile once. We deliver your matches daily.

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7-day free trial with full access · $39/mo after · card required, no charge today · cancel anytime