Built for UK Construction Teams

Stop Losing Money to
Subcontractor Chaos

SubSync AI brings all your subbies, compliance docs, invoices, and on-site coordination into one place — so you spend less time chasing paper and more time building.

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No spam. Unsubscribe anytime. UK-focused launch.

GDPR Compliant
CIS & UTR Ready
Works on Any Device
Built for UK Main Contractors
No Long Contracts

Sound familiar?

Managing subcontractors in the UK is a nightmare of spreadsheets, WhatsApp chains, and missing paperwork. We're fixing all of it.

📋

Compliance docs buried in email

CSCS cards, insurance certs, method statements — all scattered across inboxes. One audit and it costs you. SubSync keeps every doc in one searchable place with automatic expiry alerts.

💸

CIS deductions calculated wrong

Getting CIS wrong means penalties from HMRC. Most site teams are still doing it in spreadsheets. SubSync auto-calculates deductions for each subbie based on their verification status.

📱

Subbies managed via WhatsApp

Briefings lost in group chats, changes never confirmed, disputes with no paper trail. SubSync gives you structured job assignments, confirmation receipts, and a full audit log.

🔍

No visibility across active sites

Which subbies are on site today? Who's overdue an invoice? Who hasn't signed the RAMS? Without a single dashboard, you're always in the dark until something goes wrong.

⏱️

Onboarding new subbies takes forever

Collecting details, verifying insurance, checking UTR numbers — it's hours of back-and-forth. SubSync gives you a self-serve onboarding portal subbies can complete on their phone.

Set up in a day. Run every site from one screen.

No weeks-long implementation. No consultant needed. Just import your team and go.

01

Add your subcontractors

Import from a spreadsheet or invite subbies directly via a link. They fill in their own details and upload their documents.

02

Assign to jobs & sites

Attach subbies to projects, set scope of works, and send briefings — all with digital confirmation and sign-off.

03

Track compliance & payments

Get real-time alerts for expiring docs, calculate CIS deductions automatically, and approve invoices in one click.

04

Audit-ready at any time

Every action is logged. Every document is stored. If HMRC or HSE come knocking, you're ready in seconds, not days.

Everything you need. Nothing you don't.

Purpose-built for UK main contractors and project managers who are done with duct-taping tools together.

  • Centralised subcontractor database — every subbie's details, documents, and history in one searchable place.
  • Automated compliance tracking — CSCS, insurance, RAMS, and more. Get alerts before anything expires.
  • CIS deduction calculator — verify UTR numbers, auto-calculate gross/net/deduction splits, and generate payment statements.
  • Site-level dashboards — see who's scheduled, who's active, and what's outstanding across all your live projects.
  • Mobile-first for subbies — subcontractors can upload docs, confirm jobs, and submit invoices from their phone without any training.
  • Full audit trail — every instruction, confirmation, and document change is logged and exportable.
SITE A — ACTIVE SUBBIES
J. Parker Plastering Ltd
Plastering · UTR Verified
Compliant
Steelfix Solutions
Structural Steel · CIS Registered
Compliant
M&E Direct Ltd
M&E · Insurance expiring
Action Needed
Premier Groundworks
Civil · RAMS not signed
Blocked
TrueRoofing Co.
Roofing · CSCS Verified
Compliant
5 subbies · 2 require action View all →

Be first to know
when we launch

We're building SubSync AI for UK construction teams tired of compliance chaos and subcontractor headaches. Join the waitlist and get founding-member pricing when we go live.

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No spam. No card required. UK launch only.