AI-Powered Software Studio — Belgium

We build software
powered by AI.

We design, architect and deploy intelligent applications — from AI-driven automation and smart assistants to full-scale enterprise platforms. One partner. End-to-end.

15+
Years of experience
30+
Applications delivered
8
Industry verticals
Trusted by industry leaders across Belgium and Europe
K-Expert Phi Data Spraying Systems DSoft RAD Unica Alvey Quick-Devis Incerta Loomies K-Expert Phi Data Spraying Systems DSoft RAD Unica Alvey Quick-Devis Incerta Loomies

AI solutions that
drive real impact.

We don't just consult — we build production-grade intelligent systems from the ground up.

🤖

Intelligent Assistants & Agents

Custom AI assistants that understand your business context. Powered by LLMs with deep knowledge retrieval, enabling your team to work smarter and faster.

Knowledge Bases AI Agents Chat Interfaces LLM Integration

AI-Powered Automation

Transform manual workflows into intelligent automated processes. Document processing, data extraction, smart routing — built to scale with your operations.

Document AI Workflow Automation Data Extraction Smart Pipelines
🏗️

Full-Stack Development

Complete web, mobile and desktop applications with AI capabilities built in from day one. Not bolted on as an afterthought — engineered as the foundation.

Web Apps Mobile Apps Cloud Architecture APIs & Integrations
ai_assistant.py
# Your AI assistant, production-ready from appbuilders import AIEngine engine = AIEngine(   knowledge_base="your_data",   model="enterprise-grade",   guardrails=True ) # Not a prototype. Production. response = engine.query(   "Analyze Q4 performance",   context=user.permissions )

Senior expertise.
No overhead.

Unlike large consultancies, you work directly with senior engineers. No project managers relaying messages. No juniors learning on your budget.

  • End-to-End, One Partner

    From AI architecture to frontend polish — we build the complete product. No handoffs between separate AI and development teams.

  • AI-Native Development

    We use AI coding agents in our own workflow, making us 3–5× faster than traditional teams. You get enterprise quality at startup speed.

  • Production-Grade, Not Prototype

    We don't deliver demos. We ship secure, scalable applications with proper authentication, monitoring, and deployment pipelines.

  • Deep Domain Expertise

    15+ years across finance, insurance, logistics, manufacturing, and SaaS — we understand business complexity, not just technology.

Proven results across
industries.

Selected projects from our portfolio. Many engagements are under NDA — we're happy to share more details in conversation.

Finance & Insurance

AI-Powered Document Processing Platform

Built an intelligent system that automatically classifies, extracts and validates data from insurance documents. Replaced a manual process involving 12+ document types with an AI pipeline achieving high accuracy.

85%
Time reduction
12+
Document types
LLMRAG PythonAzureReact
Industrial Automation

Warehouse Intelligence System

Developed a desktop and web-based control system for automated warehouse operations. Real-time monitoring, intelligent routing algorithms, and predictive maintenance alerts for a global industrial player.

24/7
Automated operation
Global
Multi-site deployment
.NETSQL Server ReactReal-time
SaaS — Legal Tech

Digital Registered Mail Platform

Full-stack development of a SaaS platform enabling users to send legally binding registered letters digitally. Mobile signing, real-time tracking, and integration with postal services.

iOS + Android
Cross-platform
SaaS
Production product
Xamarin.NET AzureOAuth 2.0
Cost Engineering

Enterprise Cost Estimation Engine

Architected a complex web application for industrial cost estimation. Multi-user collaboration, version control of estimates, and intelligent cost modeling with historical data analysis.

Enterprise
Scale deployment
Multi-user
Collaboration
ReactNode.js GraphQLPostgreSQL

From idea to
production in weeks.

Our AI-augmented workflow means we move at startup speed with enterprise reliability.

1

Discover

We dive deep into your business challenge. No generic solutions — we map your specific needs, data landscape and integration points.

2

Architect

Technical design and AI strategy. We prototype the core intelligence, validate feasibility, and define the full system architecture.

3

Build

Rapid, iterative development using AI-augmented coding. Weekly demos, continuous feedback loops, and transparent progress tracking.

4

Deploy & Scale

Production deployment with monitoring, security hardening, and performance optimization. We stay on for support and iteration.

Boutique studio.
Enterprise results.

Felix De Lille
Felix De Lille
Founder & Lead Architect
in

AppBuilders is a specialized AI software studio founded on a simple conviction: the best software is built when deep technical expertise meets direct client partnership — without the layers of project management that slow things down.

With over 15 years of full-stack development experience across finance, insurance, logistics and SaaS, we've evolved into an AI-first engineering practice. We combine hands-on expertise with Large Language Models, retrieval-augmented generation (RAG), and intelligent automation to build applications that genuinely transform workflows.

We work with a curated network of specialist partners — designers, domain experts, cloud architects — scaling up for each engagement while maintaining the quality and speed that comes from senior-led execution.

🧠 LLM & AI Agents
🔍 RAG & Knowledge Systems
⚛️ React / Next.js / Node
🔷 .NET / C# / Azure
📱 Mobile (iOS & Android)
☁️ Cloud & DevOps
🐍 Python / FastAPI
🗄️ SQL / NoSQL / Vector DBs

Let's build something
intelligent together.

Ready to explore what AI can do for your business?

Whether you have a concrete project in mind or want to explore possibilities — we'd love to hear from you. First consultations are always free.

📞 +32 (0)484 986 717
📍 Oudenaarde & Gent, Belgium