Gianni Marchioni · Portfolio
Co-founder of SiteOS, building the operating system for construction.
Construction operations. Field-tested technology. Real problems, solved.
I come from the world of jobsites — scheduling, subcontractors, inspections, daily field activity — and I co-founded SiteOS to turn that reality into software builders actually want to use.
About
Gianni Marchioni
Co-Founder | Construction Operations & Technology. Applying real-world construction knowledge to make SiteOS practical and valuable for builders.
Academy focus
Construction operations, technology, problem-solving, innovation, and leadership.
Gianni helps connect construction operations with the technology SiteOS is building. He contributes to product development by bringing attention to jobsite workflows, communication, project tracking, and the practical problems builders need technology to solve.
AREA 01
Construction operations
Understand scheduling, subcontractors, inspections, and daily jobsite activities.
- Subcontractor Performance scorecards
- Permit and inspection workflow
- Field Foreman dashboard and daily reports
AREA 02
Field communication
Identify communication breakdowns between field teams, project managers, and homeowners.
- Owner and Client Portal
- Role-based alerts and escalations
- Punch lists and RFI response tracking
AREA 03
Project tracking
Help develop features for schedules, progress updates, milestones, photos, and delays.
- Live Project Command Center
- Milestone notifications and photo feed
- Weather and lost-day tracking
AREA 04
AI construction intelligence
Explore how AI could identify scheduling conflicts, project risks, and opportunities for improvement.
- Trade sequencing and conflict detection
- Predictive Risk Engine alerts
- Delay causation analysis
AREA 05
Testing and development
Gather feedback from construction professionals and help improve SiteOS workflows.
- Field feedback applied across modules
- Workflow refinements for builders and PMs
AREA 06
Industry relationships
Explore future opportunities to implement SiteOS within construction businesses, including McCombs Steel.
- Implementation and pilot opportunities
- Construction company relationships
Accomplishments
What I've built and where I'm headed.
A portfolio grounded in construction operations, with SiteOS as the flagship.
01
Co-Founder, SiteOS
Co-founding UseSiteOS — a construction operating system that turns raw site activity into verified progress, early risk alerts, and billing teams can trust.
2025 — Present
02
Product development, from the field up
Bringing jobsite workflows, communication patterns, and project tracking needs into product decisions so the platform solves real problems builders face daily.
Ongoing
03
Industry implementation, incl. McCombs Steel
Developing implementation and pilot opportunities with construction businesses — connecting the platform to real subcontractor and GC operations.
Ongoing
04
Construction operations expertise
Deep focus on scheduling, subcontractor performance, permits and inspections, and daily field activity — the operational backbone the platform digitizes.
Career focus
Vision
Make SiteOS a practical construction operating system that turns real jobsite activity into verified progress and clear next steps. The platform should help field teams, project managers, builders, and homeowners communicate around the same current picture, surface schedule and project risks early, and make workflows easier to use in the field.
Featured · UseSiteOS.AI
SiteOS — the operating system for construction intelligence.
My main venture: real-time visibility, predictive insights, and total margin control — raw site activity turned into verified progress, early risk alerts, and billing teams can trust.
$273B
Estimated annual U.S. loss to rework and inefficiency
70%
Projects reported over budget or behind schedule
2–4 wks
Typical delay before cost overruns are detected
35%
Contractor time spent on non-productive activity
$48K
Estimated cost of one failed inspection and rework cycle
Draft market estimates — verify before publication in investor or customer materials.
How it works
From site activity to executive intelligence in minutes.
SiteOS connects field observations to decisions people can act on.
01 / CAPTURE
Record site reality
Cameras, drones, sensors, walkthroughs, and mobile inputs capture jobsite activity.
02 / PROCESS
Verify progress
AI turns visual and sensor data into structured progress metrics.
03 / ANALYZE
Find emerging risk
Models look for schedule, cost, and safety signals that need attention.
04 / ADVISE
Recommend action
Prioritized alerts suggest next steps before problems become more costly.
05 / REPORT
Share live status
Owners and lenders see verified dashboards without waiting for manual reporting.
The platform
Twelve modules. One system of record.
A connected view of the work, risks, costs, and decisions across a construction portfolio.
01
Safety & Compliance
AI PPE detection, OSHA tracking, near-miss logging, and credential checks.
02
Supply Chain
Delivery tracking, waste and theft alerts, supplier scoring, and procurement forecasts.
03
Subcontractor Performance
Live scorecards for timeliness, rework, safety, and billing accuracy.
04
Permits & Inspections
Permit tracking, 48–72 hour inspection alerts, and failed-inspection management.
05
Weather Intelligence
Hyperlocal forecasts, lost-day tracking, cure monitoring, and claim-ready logs.
06
Documents & RFIs
RFI aging, submittals, drawing version control, and change-order impact modeling.
07
Workforce & Labor
Utilization, overtime burn, absenteeism alerts, and crew sequencing.
08
Financial Intelligence
Earned value, invoice verification, cost-at-completion, and lien waivers.
09
Owner & Client Portal
White-label dashboard with photo feed, budget-to-actual, and lender access.
10
Post-Project Loop
Closed projects feed benchmarks, lessons learned, and future bids.
11
Estimating & Bid Calibration
Bid risk scoring, scope-gap detection, and productivity libraries from actuals.
12
Insurance, Bonding & Lenders
Safety and progress data that can support premiums and faster draws.
Built for the field too
Offline-first mobile, one-tap daily reports, voice-to-log, QR site check-in, and planned connections with Procore, Sage, Primavera P6, QuickBooks, and more.
Differentiators
Three capabilities designed to make SiteOS useful day to day.
Each connects jobsite records to a specific operational decision.
01 / RECORD
Claims & Dispute Intelligence
Builds a chronological record of decisions, changes, delays, weather, and photos. One-click claim packages aim to reduce assembly from weeks to days, with delay causation analysis and change-order chain of custody.
02 / LEARN
Bid-to-Build Variance Engine
Loads estimates by cost code, tracks daily field costs, and flags variances. Tagged root causes and actuals can inform the next bid.
03 / RECOVER
Trade Sequencing Optimizer
Maps dependencies, detects conflicts, and recommends resequencing so project managers can evaluate schedule recovery at minimum cost.
Role-based dashboards
Executive
Portfolio health, margin drift, financial exposure.
Project Manager
Today's priority actions, RFIs, and billing holds.
Field Foreman
Zone board, crew, tasks, and safety flags.
Estimator
Bid risk, cost database, and scope-gap analysis.
Client Portal
Branded, verified progress and budget view.
Illustrative ROI
Value areas a 10-unit GC portfolio can measure.
Potential value is organized around avoided cost, recovered time, and improved cash flow.
$745K
Illustrative average annual value estimate for a 10-unit general contractor portfolio.
90-day proof of value
Test across 2–5 active projects with live dashboards, safety monitoring, invoice verification, weekly intelligence reports, and an embedded success team.
Overpayments caught against verified progress
Fewer defects and failed inspections
Verified documentation
Utilization lifted from 69% to 84%
Earlier warnings prevent slips
Monitoring and just-in-time delivery
Potential effect of safety performance
Faster draw cycles
Supplied planning estimates, not validated customer results. Not guaranteed savings.