SubMilestone.com

Track subcontractor milestones in real-time to crush project overruns

Score: 7.7/10ETHard BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Enterprise construction teams struggle with inefficient subcontractor management causing payment delays, compliance issues, and costly project overruns.

Solution

SubMilestone provides shared milestone boards, progress photo uploads, and delay analytics for multi-sub projects. Teams assign tasks, track % complete, and forecast overruns with AI insights. Prevent costly extensions through visibility and accountability.

Target Audience

Enterprise construction teams managing large-scale projects with multiple subcontractors

Differentiator

AI delay prediction based on historical sub performance data

Brand Voice

professional

Features

Milestone Boards

must-have12h

Kanban-style per project with sub assignments

Progress Updates

must-have10h

Daily % complete logs with photo proof

Delay Notifications

must-have8h

Alert on slipping milestones

Performance Analytics

must-have15h

Sub scorecards and overrun forecasts

Task Assignment

must-have10h

Assign/notify subs with deadlines

Gantt Chart View

nice-to-have20h

Visual timeline dependencies

Mobile Photo Upload

nice-to-have15h

App-like progress capture

Export to PM Tools

nice-to-have12h

Sync with MS Project

Total Build Time: 102 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo

Relationships:

  • one-to-many projects

projects

ColumnTypeNullable
iduuidNo
nametextNo
user_iduuidNo

Relationships:

  • fk users.id
  • one-to-many milestones

subcontractors

ColumnTypeNullable
iduuidNo
project_iduuidNo

Relationships:

  • fk projects.id

milestones

ColumnTypeNullable
iduuidNo
project_iduuidNo
sub_iduuidYes
nametextNo
due_datetimestampNo
progressintNo
statustextNo

Relationships:

  • fk projects.id, subcontractors.id

API Endpoints

POST
/api/milestones

Create milestone

🔒 Auth Required
PUT
/api/milestones/:id/update

Update progress

🔒 Auth Required
GET
/api/projects/:id/analytics

Get delay forecasts

🔒 Auth Required
GET
/api/subs

List project subs

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + shadcn/ui + Framer Motion
Backend
Next.js API + Supabase
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Cloudinary (images)Resend

Build Timeline

Week 1: Setup & Boards

20h
  • Auth
  • Projects
  • Kanban board

Week 2: Milestones CRUD

25h
  • Milestone mgmt
  • Sub assign

Week 3: Updates & Notifs

25h
  • Progress log
  • Alerts

Week 4: Analytics

25h
  • AI forecasts
  • Dashboards

Week 5: Enhance UI

20h
  • Photos
  • Gantt stub

Week 6: Launch prep

15h
  • Tests
  • Landing

Week 7: Polish

10h
  • Mobile opt
  • Exports

Week 8: Final tests

10h
  • E2E
Total Timeline: 8 weeks • 170 hours

Pricing Tiers

Starter

$0/mo

No analytics

  • 1 project
  • 10 milestones

Pro

$20/mo

3 projects

  • Unlimited
  • AI predictions
  • Photos

Enterprise

$99/mo

None

  • All unlimited + teams
  • Custom AI

Revenue Projections

MonthUsersConversionMRRARR
Month 11202.5%$60$720
Month 66007%$840$10,080

Unit Economics

$45
CAC
$520
LTV
6%
Churn
90%
Margin
LTV:CAC Ratio: 11.6xExcellent!

Landing Page Copy

Stop Subcontractor Delays Before They Happen

SubMilestone's real-time tracking and AI forecasts keep projects on time and under budget.

Feature Highlights

Live Milestone Boards
Photo Proof Updates
Delay Alerts
Sub Performance Scores
Overrun Forecasts

Social Proof (Placeholders)

"'Reduced overruns by 30%.' – BuildMaster LLC"
"'Subs actually use it!' – ProjectX"

First Three Customers

Join 'Construction Scheduling' Facebook groups; offer free milestone audits; cold email PMs from job boards like Indeed construction postings.

Launch Channels

Product Huntr/projectmanagementr/constructionTwitter #constructiontech

SEO Keywords

subcontractor milestone trackingconstruction progress softwaresubcontractor delay preventionconstruction gantt for subsproject overrun forecasting

Competitive Analysis

Autodesk BIM 360

autodesk.com
$100+/user
Strength

BIM integration

Weakness

Complex for milestones

Our Advantage

Simple sub-focus, AI predictions

Fieldwire

fieldwire.com
$54/user
Strength

Task mgmt

Weakness

Limited sub analytics

Our Advantage

Sub-specific AI

🏰 Moat Strategy

Historical performance data for AI; sub self-onboarding network effects

⏰ Why Now?

Labor shortages + supply chains create more delays; AI maturity enables predictions

Risks & Mitigation

executionhigh severity

Sub adoption low

Mitigation

Guest portals + incentives

marketmedium severity

PM tools dominance

Mitigation

Niche sub layer

Validation Roadmap

pre-build7 days

Validate with 12 PM interviews

Success: 60% pain validation

mvp35 days

Board + updates beta

Success: 4 weekly active users

Pivot Options

  • General task tracker for trades
  • Daily reporting app
  • Time tracking for subs

Quick Stats

Build Time
170h
Target MRR (6 mo)
$1,100
Market Size
$3000.0M
Features
8
Database Tables
4
API Endpoints
4