29 years of software engineering

Software built to stay secure.

We are a security-led engineering team. We design and build SaaS platforms and business-critical applications, harden the ones you already run, and put AI to work on the processes that actually cost your team time.

29+ Years shipping production software
100% Custom code, security-reviewed
0 Third-party scripts on this site
SaaS Architecture Application Security Penetration Testing Cloud-Native Deploy LLM Integration Data Modelling Core Web Vitals Zero-Trust Access API Design Business OS Product
What we do

Four things, done properly

We take on work where we have real depth, and we deliver it at a level you can keep building on for years.

Security engineering

Assessments, penetration tests and remediation — plus the hardening work that keeps findings from coming back.

Applied AI

Retrieval over your own documents, workflow automation, and generative visual production with real art direction.

Business OS

Our own product: invoicing, inventory, treasury and reporting on one database.

Our product

NetWelop Business OS
One database, not five tools

Inventory in a spreadsheet, accounts in another system, cheques in a notebook — and none of them agree. Business OS puts sales, stock, treasury, accounting, tasks and calendar on a single database. Post an invoice and every one of them updates in the same moment.

Sales & invoicing

Contacts & CRM

Multi-warehouse inventory

FIFO & landed cost

Treasury & accounting

Cheque management

One week of full access, free. No card required.

erp.netwelop.com/dashboard
23 Operational modules
1 Single source of truth
7 Day free trial
Selected work

What we have built

Full portfolio
How we engage

From first call to hardened release

Every stage has a defined deliverable. You always know where the project stands and what the next artefact will be.

Discovery

A technical session to understand the real process and scope the work. Output: a requirements note and an honest estimate.

Architecture

Data model, security architecture and interface design. We define the threat model before the first line of code.

Build & review

Custom implementation with a security review on every change, shipped in two-week increments you can see.

Test & harden

Final assessment, infrastructure hardening, data migration and handover training for your team.

Support

Fixes, security updates and incremental development under a defined response time.

Why NetWelop

The difference is in the layer nobody sees

Plenty of teams can produce a good-looking interface. What separates software that lasts is the layer underneath: the data model, the access control, and code that is still extensible three years later.

A system that adapts to how your business works — instead of forcing your business to change.

Secure by default, not as an upsell

Parameterised queries, CSRF tokens, Argon2id hashing and a strict header policy ship on every project at no extra cost.

Custom code, no page builders

A theme is thousands of lines nobody on your team has read, plus plugins whose security patches may never arrive.

Performance as a number

We agree a performance budget up front and measure against it at handover, rather than hoping it feels fast.

Talk to the engineer

You speak with the person writing the code. No account layer, no handoffs.

Tell us what you are building

A short technical call, no obligation. If it is outside what we do well, we will say so.

We reply within one business day