CSI Stuttgart – Portal and App for Electronic Components…

E-Commerce

The Challenge

Trading millions of SKUs across manufacturers

Industrial component trading combines complex master data, availability across channels, and different roles (end customer, dealer, internal processing).

Users expect searchable catalogues across manufacturers and part types, transparent conditions for new and used stock, and traceable order status—without admin and storefront slowing each other down.

One system for web, back office, and mobile

Technical buyers work both at desks and on the move. The portal must be dependable on desktop, mobile apps must mirror the same business rules, and the backend must avoid duplicated data.

Changes to articles, pricing, or customer accounts should propagate centrally—from inquiry to invoice—so support and sales are not stuck switching between isolated tools.

Our Solution

Portal and app screenshots

Laravel backend, Vue.js front end, app integration

We delivered an end-to-end system on Laravel and Vue.js. The web UI talks to the backend through defined interfaces. Administrative areas cover article management, customer master data, order processing, and invoicing.

MySQL stores the B2B depth; REST APIs feed native iOS and Android apps with the same rules as the portal—shared validation and shared business logic.

Working with CSI Stuttgart and regional context

CSI Stuttgart is rooted in industrial electronics trading in Baden-Württemberg; Groenewold IT Solutions builds the platform from Leer in East Frisia. Collaboration runs remotely with structured releases, clear interfaces, and direct alignment on domain questions—from search and listing behaviour to back-office workflows.

That keeps the solution maintainable and extensible without diverging data between development and operations.

Results

One channel for search, quoting, and fulfilment

Buyers and dealers share one digital ecosystem: search and article information connect to order and document flows; internal teams maintain master data and cases in one place. Native apps complement the web portal for typical mobile tasks—without detached processes.

For Groenewold IT Solutions, the project showcases B2B e-commerce with a strong backend and API scope alongside classic app delivery.

Long-term evolution instead of a one-off shop

The platform is designed for multi-year use: new requirements for catalogue logic, pricing, or integrations can be extended in the Laravel stack; web and apps can evolve iteratively. That matches typical mid-market needs—not rigid off-the-shelf software, but tailored software partnership from Germany.

Technical and organisational notes

Why we split backend and frontend

For a marketplace with many attributes and roles, separation pays off: the Laravel backend encapsulates rules, permissions, and persistence, while Vue.js delivers UIs for fast capture and overview.

Business logic changes stay traceable, and mobile apps can reuse the same endpoints without duplicating core algorithms.

Ownership end-to-end

From design through implementation to ongoing iterations, Groenewold IT Solutions supports the project as a software partner—with named contacts and documented architecture.

That reflects our approach: sustainable solutions instead of short-lived workarounds, so CSI Stuttgart can run digital sales reliably over the long term.

B2B search and mobile buyers

Keeping millions of SKUs searchable

Industrial electronics lives on part numbers, cross-references, and used stock—search must tolerate typos yet return relevant hits. Laravel indexes and Vue.js filters work together so desktop and app deliver the same result quality.

“In B2B electronics trade, bad search costs more than a slow checkout—the buyer switches supplier.”

Used and new stock stay clearly separated in the UI; terms appear only after login—typical for wholesale.

API-first for apps and portal

“One backend, three clients—portal, iOS, and Android share rules, not data copies.”

REST endpoints are versioned and documented; mobile clients use the same validations as the Vue.js frontend—a pattern for long-term B2B platforms.

Features

Feature overview

Web portal for search, quotes, and orders across industrial electronics assortments
Native iOS and Android apps wired to the same business logic as the portal
Laravel backend with MySQL for article, customer, and order data
Vue.js interfaces for user-facing shop and administrative workflows
Comprehensive management: articles, customers, orders, invoices
Trading new and used industrial electronic components from multiple manufacturers
REST APIs between backend and mobile clients
Delivery and ongoing support by Groenewold IT Solutions (East Frisia, Made in Germany)

Frequently asked questions about CSI Stuttgart

What defines CSI Stuttgart as a portal and app project?

The project combines product and component data with mobile usage and portal features. Solutions like this need both information depth and usability. That is where web app development and app development work together.

Why are data structure and search so important in an app like this?

Electronic components become confusing quickly if filters, labels, and availability are not consistent. That makes the project a strong example of data-driven software development.

What role do integrations play in this B2B context?

Product catalogs, availability, and CRM-adjacent processes often need to work with existing systems. That is where API integration and system integration make the difference.

What kinds of projects is this reference relevant for?

For B2B portals, product catalogs, and technical sales applications with a mobile component. Similar examples can be found in our web app references and system integration references.

Transparency about this case study

So the statements above can be judged properly, we disclose what kind of project this is, what the results are based on and who reviewed the text. More on our project approach and an overview of all reference projects.

Case type: Client project with a named customer – Customer, delivery and timeline are real; the publication scope is documented in the reference record.
Measurement basis: Consolidation of search, quoting and fulfilment into one channel – measured by the number of media breaks in the ordering process.
Measurement period: Multi-year engagement with regular expansion stages
Data source: Business and IT contacts at CSI Stuttgart from the coordination of each expansion stage.
Scope of the figures: Qualitative assessment from project operations – no independently audited metrics.
Publication status: Evidence pending in the new approval register
Approval scope: The existing publication remains available; case-specific customer approval still needs to be recorded in the new register.
Evidence record: Project file and published reference record held by Groenewold IT Solutions.
Technical review: Björn Groenewold, Managing Director of Groenewold IT Solutions GmbH and Hyperspace GmbH – last reviewed on 8 September 2026

Change history

8 September 2026Evidence details added to “CSI Stuttgart platform”: case type, measurement basis, data source and technical review.
24 February 2026Results and solution description of “CSI Stuttgart platform” revised; the German version was aligned.
1 January 2025Case study “CSI Stuttgart platform” published.

CSI Stuttgart – Portal and App for Electronic Components