Custom Management Software

Your business has its own rules. Your software should follow them.

Stop fighting with standard management software that forces you to work unnaturally. We develop custom software that moulds to your processes, giving you total efficiency and control. You no longer have to adapt your company to the software: the software will adapt to you.

Talk to an expert

If you recognize yourself in these problems, we are the solution.

Excel Spreadsheet Chaos

You use dozens of Excel files to manage clients, orders, inventory. They're slow, full of errors and only you know how they work.

Obsolete Management System

Your current software is old, cumbersome, not accessible from mobile and every change costs a fortune.

'Manual' Processes

You spend hours copying and pasting data, sending standard emails, generating reports. Time you could spend growing your business.

Unfindable Data

You don't have a clear view of what's happening. Sales data is in one place, production data in another.

What we can build for you

Custom CRMs

To manage clients and deals according to your sales process.

Simplified ERPs

To keep production, inventory and projects under control.

Specific Platforms

For any unique process in your company (course management, fleet booking, construction site monitoring).

Real-world examples

Logistics & Transport

Fleet management, real-time shipment tracking and load optimisation.

Services & Consulting

Client portal, project management, time tracking and automatic invoicing.

Retail & E-commerce

Physical/online inventory synchronisation, returns management and loyalty programmes.

Standard vs Custom

Standard Software

Selli Solution

You adapt to the software

The software adapts to you

Generic, often useless features

Only the features you need

Monthly fees for features you don't use

Initial investment, but lower TCO

Hard to integrate

Designed to integrate with your tools

Frequently Asked Questions

There's no fixed price, because every project is unique. The cost depends on the complexity of the required features. We don't sell a product, but a solution. Contact us for a free consultation and we'll provide a detailed, no-surprises quote based on your actual needs.

Of course. Importing existing data (clients, products, orders) is a crucial phase of every project. We analyse your current system and plan the migration to ensure a smooth transition without data loss.

Absolutely yes. Upon project completion and final payment, the source code and all intellectual property of the software are 100% yours. We don't believe in vendor lock-in.

A simple automation or small management system can take 4-8 weeks. A complex ERP or CRM can take 3-6 months. Thanks to our agile approach, you'll be able to use the main software features well before the final delivery.

We organise dedicated training sessions with your team, both in person and remotely. We provide clear documentation and video tutorials to make everyone self-sufficient with the new tool.

Yes. We offer various maintenance and support plans, from basic bug-fixing support to hour packages for implementing new features and evolving the software over time.

At Sellinnate, information security is an absolute priority in the development of your software. That's why we've started the ISO 27001 certification process, along with the complementary ISO 27017 and ISO 27018 certifications, focused on cloud security and personal data protection respectively.

Our technology stack