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Custom ERP Development — London, UK

One System for Every Part of How Your Business Runs.

SAP was built for enterprises with thousands of employees. Ours are built for growing UK businesses — without the modules you will never use and the licence costs that never stop.

Book a Free Discovery Call →See What We Build ↓
Fixed-price
Modular build
London-based
Post-launch support included
nettrackers.app/erp/operations-hub
OverviewInventoryFinanceHR
NetERP
📊Overview
📦Inventory
💰Finance
👥HR
🚛Procurement
📋Projects
⚙️Settings
Operations Overview — Live
📦Inventory
2,847 SKUs
↑ 12%
💰Finance
£1.2M MTD
↑ 8%
👥HR
94 staff
All active
📋Projects
17 active
3 due soon
🚛Procurement
34 orders
8 pending
📊Reports
Live data
Updated now
Revenue — Last 8 Weeks
Stock Alerts
Steel Rod 20mmLow
12 / 50 min stock
Bearing 6204Low
34 / 40 min stock
Valve Assembly BLow
8 / 30 min stock
Recent Sync
Xero sync complete
2m ago
PO #2847 approved
14m ago
Payroll processed
1h ago
£1.24M
Revenue MTD
34 open
Active Orders
12 / 94
Staff Online
99.97%
System Uptime
30%
Faster order processing
Average reduction in order processing time after replacing manual systems with a purpose-built ERP.
3–5
Tools replaced by one ERP
The average UK SME uses 3–5 separate tools to manage what one connected ERP should handle.
6 months
Typical payback period
Measured in staff time saved, errors eliminated, and subscription costs removed from the business.
The Problem

If Your Operations Run Across Five Systems That Never Sync, You Have an ERP Problem.

Data entered three times. Stock that never matches reality. No single view of how the business is actually performing.

The cost is not just inefficiency — it is the decisions you make with incomplete or wrong information, and the staff time spent reconciling systems instead of running the business.

Sound familiar?
Stock managed in spreadsheets — errors routine
Finance and operations in separate systems that never talk
Jobs or orders tracked across email and shared drives
Reporting requires manually pulling data from everywhere
A legacy system so outdated it is slowing everything down
What's Included

What We Build Into Every Custom ERP

Inventory & Stock

Real-time visibility across every location and SKU.

Live stock levels and location tracking
Automated reorder alerts
Purchase order management
Barcode and SKU integration

Finance & Invoicing

Your numbers connected to your operations automatically.

Invoice generation from jobs or orders
Approval workflows and PO tracking
Custom financial reporting
Accounting software integration

HR & Workforce

People management in the same system.

Employee records and contracts
Leave and timesheet management
Time tracking
Payroll integration

Jobs & Projects

Every job tracked from quote to completion.

Job creation, assignment and progress
Materials and labour cost per job
Milestone and deadline tracking
Document management per project
Custom vs Off-the-Shelf

Custom ERP vs Off-the-Shelf

Feature
Custom ERP
Off-the-Shelf
Workflows
Built around your workflows
You adapt your workflows to fit it
Cost model
One-off cost — no annual licence
Licence fee grows with users and modules
Features
Only the modules you need
Hundreds of features you will never use
Ownership
You own it — no vendor lock-in
Vendor controls pricing and discontinuation
Reporting
Reports built around your KPIs
Default reports built for everyone

Not every business needs custom ERP. If an off-the-shelf tool covers your needs, we will say so honestly.

How We Build

How We Build Your Custom ERP

01
Week 1–2

Discovery

We map every operational workflow before a single line of code is written. No assumptions — we document exactly how your business runs.

02
Week 2–4

Architecture & Design

Database, system structure and UI wireframes signed off by you before development begins.

03
Weeks 4–16

Build

Sprints with a live demo per module. Real working software throughout — no end-of-project surprises.

04
Weeks 16–18

Testing

QA across every module, user role and workflow. User acceptance testing completed before go-live.

05
Week 18–20

Launch & Migration

Data migrated from existing systems. Team trained. Go-live supported by our team from day one.

06
Ongoing

Support

New modules, integrations and updates as your business evolves. We stay available after launch.

Industries

Custom ERP Across Every UK Industry

IndustryWhat We Build
ManufacturingProduction scheduling, materials management, quality control
Wholesale & DistributionStock, order processing, supplier and customer portals
Construction & PropertyJob costing, procurement, subcontractor management
Healthcare & MedicalStock and supplies, compliance reporting, patient records
Food & BeverageBatch production, ingredient tracking, traceability
Retail & E-CommerceInventory, fulfilment, returns, supplier integration
Professional ServicesProject management, time tracking, client billing
Startups & SMEsCore modules now — built to scale as you grow
Integrations

A Custom ERP That Connects to Everything You Already Use

A system that sits in isolation defeats the purpose. Every ERP we build connects to your existing tools via API.

Accounting

Xero, QuickBooks and Sage. Data flows automatically — no double entry. Invoices generated from orders, payments reconciled, profit and loss updated in real time.

XeroQuickBooksSageFreeAgent

E-Commerce

Shopify and WooCommerce orders sync to the ERP in real time. Stock updates automatically across all channels when a sale is made or a return is processed.

ShopifyWooCommerceMagentoBigCommerce

Payroll

Timesheet data feeds directly to your payroll provider. No manual export, no re-entry. HR, timesheets, and payroll connected end to end in one system.

Sage PayrollBrightPayGustoXero Payroll

Custom CRM

ERP and CRM built as one connected platform if you need both — sales and operations sharing the same data. One source of truth across the whole business.

Custom-builtSalesforceHubSpotAny CRM via API
Results

What Our Custom ERPs Have Delivered

Education & Startup Platform
Startium.co.uk

Bespoke Campus Management System Built for Startium.co.uk

How we designed and developed a fully custom campus management platform for a UK-based entrepreneurship and education support organisation — built on .NET, deployed on AWS and delivered responsively across every device.

Fully Responsive
Seamless across desktop, tablet and mobile
C# / .NET / MVC
Scalable, maintainable backend architecture
AWS Hosted
Flexible infrastructure built to handle growing demand
99/100
Platform performance and stability post-launch

“NetTrackers delivered a platform that handles the complexity of our operations without making it feel complicated for our users. The build was structured, the communication was clear and the end result is exactly what we needed.”

— Director, Startium.co.uk
Read case study →
Discuss Your ERP Project →
Why NetTrackers

Why UK Businesses Choose NetTrackers for ERP Development

Fixed-Price Build

Scope agreed, cost fixed. No billable-hours surprises mid-build. You know the number before you sign anything — and it does not move.

Modular by Design

Start with what you need. Add departments, locations, or modules as you grow. No rebuild required — the architecture is designed for extension from day one.

In-House Team

Design, development, QA and project management all under one roof. No outsourcing, no handoffs, no communication gaps. One team responsible for the whole build.

ERP + CRM Aligned

If you need both, we build them as one connected platform — sales pipeline and operations sharing the same data and the same source of truth.

Post-Launch Support Included

Always. New modules, integrations, bug fixes and updates — we stay available as your business and your ERP evolve together.

FAQ

Common Questions About Custom ERP Development

A custom ERP connects your inventory, finance, HR and operations in one platform — built around your workflows, not a vendor's assumptions about how businesses work. Every module talks to every other module, giving you one source of truth across the whole business.

A focused single-department ERP starts from £20,000. A full multi-department system typically ranges from £40,000 to £100,000+. All projects are fixed-price — scope and cost agreed before we start.

A focused ERP takes 12 to 16 weeks. A full multi-department system takes 16 to 24 weeks. Timelines are fixed at discovery and delivered in working sprints with demos throughout.

For large enterprises, SAP and Dynamics offer scale. For growing UK SMEs with specific workflows, custom ERP typically delivers better ROI — you own it outright, pay once and it fits your processes exactly.

Yes. Every ERP we build is modular — start with inventory or finance, add HR, jobs or procurement as you grow. No rebuilding required. The architecture is designed for extension from day one.

Yes. Data migration is included. We map, clean and migrate from spreadsheets or legacy systems and validate accuracy before go-live. Nothing re-entered manually.

Yes. Both are built as one connected platform — sales and operations sharing the same data. One source of truth across the whole business, built by the same team.

Post-launch support is included in every project. Bug fixes, new modules, integrations and updates — we stay available as your system evolves.

Works Best Alongside
Let's Build Your ERP

Tell Us How Your Operations Currently Run. We Will Show You What a Custom ERP Can Replace.

Free 30-minute discovery call. No obligation. We map your workflows and tell you exactly what a custom ERP would cost and deliver.

Fixed price. London-based. Post-launch support included.

Book Your Free ERP Discovery Call →