Four products. One login. The whole UK construction stack.

One login.
One stack.
One invoice.

SiteLynx runs the site. WorkLynx runs the people. CostLynx prices the work. InvoLynx collects the money. One company built the lot — on one stack, shared across every product.

SITE-Lynx·WORK-Lynx·COST-Lynx·INVO-Lynx
Start with SiteLynx (live) See the bundle pricing
One login across all products Shared data, shared people, shared sites UK hosted · UK built
Their stackProcore£300/user/mosite PM, sold by repsBrightHRfrom £83/moHR · 5 staff · 12-mo contractHBXL£54/moestimating · Windows-onlyXero + Dext~£55/moaccounts · no CIS, no PLNLynx Group bundlefrom £45/moall four products
Public published prices verified May 2026. Comparative ad — UK Business Protection from Misleading Marketing Regs 2008.
£45/mo for the lotAll four products. One bill.

SiteLynx £19 + WorkLynx £8 + CostLynx £8 + InvoLynx Plus £15 − 30% bundle discount = £45.15 for a 5-person team. Cancel any time.

One Supabase
Shared auth across all four
UK-hosted
AWS London + Cloudflare
ICO registered
Data protection assured
Same login, same bill
No duplicate accounts, no faff
Why one stack beats five.

What you're not paying for.

The typical UK contractor runs five tools that don't talk to each other.

The five-tool tax.
  • ✕
    Five logins. Five subscriptions. Five passwords lost.
    Each tool reinvents customers, sites, employees in its own database.
  • ✕
    Data lives in five silos.
    Your QA report and your CIS deduction don't know about each other.
  • ✕
    Each vendor reps a 12-month contract.
    Five 12-month contracts, five renewal cycles, five sales calls.
  • ✕
    £200–£400/mo for a small UK contractor.
    Procore + BrightHR + HBXL + Xero + Dext = before you've added a seat.
  • ✕
    Per-feature paywalls everywhere.
    CIS on the £42 tier. Rotas on the £30 tier. Compliance on £100.
  • ✕
    No cross-product workflow.
    You re-key the same job into the estimator, the project tool, and the accounts.
That's us.
How Lynx Group does it.
  • ✓
    One login. One bill. One company.
    Customers, sites, employees, contracts — defined once, referenced everywhere.
  • ✓
    Shared data across products.
    CostLynx prices a job → InvoLynx invoices it → WorkLynx schedules the crew → SiteLynx tracks the site.
  • ✓
    Month-to-month. Cancel any time.
    No annual contract on any product. Stop using something, stop paying for it.
  • ✓
    £45/mo for the lot.
    Five products replaced. Same workflow, one tenth of the bill.
  • ✓
    Every feature on every tier above Standard.
    No CIS upsell. No rota upsell. No compliance upsell.
  • ✓
    Cross-product workflow built in.
    Certified valuation in CostLynx auto-raises an invoice in InvoLynx with CIS + DRC handled.
The four products.

Each one stands alone. Buy any. They all click in.

Built on one stack — one Supabase, one auth, one Anthropic API key. Cross-product workflows the moment you add a second product.

LiveThe site workstation.
SITE-LYNX

RAMS, QA, safety audits, snags, permits, plant, gate audits, site diary — fifteen modules in one place. Preloaded with 1,200+ BS/EN/NHBC references.

  • AI-drafted RAMS in minutes.
  • 49 QA trades with acceptance criteria.
  • 12 permit types with regulatory framework.
See SITE-Lynx
15
Modules
1,200+
Refs preloaded
£12/mo
From
LiveThe workforce side.
WORK-LYNX

GPS clock-ins, rotas, timesheets, leave, payslips, training, policies — every HR module on every plan. Plus Employ AI: a UK employment-law advisor on tap.

  • GPS-verified clock-in with geofences.
  • 49 UK policies preloaded.
  • Employ AI answers ACAS / TUPE / SSP.
See WORK-Lynx
12
Modules
£2.50
Base
+£1
Per employee
Coming Q3The commercial brain.
COST-LYNX

Estimating, BOQ, valuations, applications for payment, project P&L, cashflow. £8/mo flat. Built by a commercial manager who priced steelwork for a living.

  • AI rate suggest with provenance.
  • NRM2-compliant BoQ + take-off.
  • Live P&L with commitment accounting.
See COST-Lynx
£8/mo
From
NRM2
Standards
£0
Setup
Coming Q3The accounts side.
INVO-LYNX

Full accounting. Xero parity + construction superpowers — Pay-Less Notice clock, CIS300 to HMRC, supplier ledger with contract sums, free B2B payments.

  • Construction Act PLN clock.
  • CIS300 + MTD VAT to HMRC Gateway.
  • Free B2B payments via Crezco.
See INVO-Lynx
£3
Sole trader
£9
Standard
£15
Plus
The flywheel.

One product is useful. Two click in. Four runs the business.

Every cross-product workflow is one data flow — no integration, no import, no Zapier in the middle.

SiteLynxWorkLynx
creates project, sites, crew

Same sites become clock-in geofences. Same crew gets their rota and timesheets.

WorkLynxInvoLynx
logs timesheets, payroll

Payroll journal auto-posts. Mileage claims become expense entries.

CostLynxInvoLynx
certifies valuation

Certified value becomes a sales invoice with DRC + CIS treatment applied. No retyping.

CostLynxSiteLynx
wins job

Job becomes a site project. Compliance auto-stood up. Plant register pre-populated.

Do the maths.

Replace the five-tool tax with one bill.

What a typical UK construction firm pays today for the same workflows.

The five-tool stack.
Procore (site PM, per user)£90/mo
BrightHR (HR, 10 staff)£83/mo
HBXL EstimatorXpress£54/mo
Xero Standard£30/mo
Dext + ApprovalMax (OCR + approvals)£54/mo
Total per month~£311
5 logins. 5 contracts. 0 cross-product workflow.
VS
SAVE £266/MO
The Lynx Group way.
LYNX GROUP BUNDLE
£45
/ month · all four products
SiteLynx + WorkLynx + CostLynx + InvoLynx Plus
30% bundle discount included.
One login. One bill. Cancel any time.

Public published prices, May 2026. Lynx Group bundle assumes 5-user team across products. Procore approximated from per-user mid-range.

Six more on the way.

The stack keeps growing. The bill doesn't.

Customers get first access when each one lands. Same login, same bill, same ecosystem.

Q3 2026
Never lose a cert again.
In development
Q3 2026
Your clients, one portal.
In development
Q4 2026
Training that stays current.
In development
Q4 2026
Drawings, shared live.
In development
Q1 2027
Bookings that know your rota.
In development
2027
▓▓▓▓▓▓▓▓▓▓▓▓▓
In development
FAQ.

The things every contractor asks.

Straight answers. No sales pitch.

Start with any product. The others light up when you need them.

SiteLynx is live. WorkLynx is live. CostLynx and InvoLynx are in beta. No card, no contract, no sales call.

Start with SiteLynx Or start with WorkLynx
Cancel any time · 30-day money back · UK-hosted