Proof in Performance.
Real projects. Real results. See how Marstark has helped businesses across the Netherlands and Europe transform with AI automation, intelligent software, and world-class development.
3 days → 2 hr
Invoice Processing
€3.2M
Series A Secured
220%
Lead Conversion Lift
Case Study 1: AI Invoice Processing
Leading Dutch Logistics Company (Rotterdam)
Challenge
Processing 3,000+ invoices per month manually with a 3-day cycle. Errors causing supplier payment disputes and damaging relationships.
Solution
End-to-end AI invoice processing using custom OCR, NLP extraction, and n8n automation. The system ingests from email, extracts data, matches against POs, routes exceptions for human review, and pushes approved invoices to Exact Online ERP.
Results
Invoice processing: 3 days → 2 hours (93% reduction). Error rate down 87%. 240 hours/month labour saved. ROI achieved in week 6.
Tech: Python · n8n · OpenAI GPT-4 · Exact Online API
Case Study 2: AI Customer Service Platform
E-Commerce Retailer (Amsterdam)
Challenge
50,000+ monthly orders overwhelming customer service. 18-hour response times causing cart abandonment and poor reviews.
Solution
Multi-channel AI customer service. Custom-trained chatbot on the client’s product catalogue, order system, and returns policy. Deployed on website, WhatsApp Business, and email with seamless human escalation.
Results
73% inquiries resolved without human agent. Response time: 18 hours → under 2 minutes. CSAT 3.2/5 → 4.7/5. No headcount increase despite 40% business growth.
Tech: Claude API · WhatsApp Business API · WooCommerce integration
Case Study 3: B2B SaaS Web Platform
HR Technology Startup (Utrecht)
Challenge
Needed a full-featured B2B SaaS application — performance management, 360 feedback, goal tracking, reporting — within a 14-week timeline for a Series A funding demo.
Solution
React frontend with enterprise-grade UI; Node.js + PostgreSQL backend; role-based access; AI-powered performance insight suggestions; full API documentation.
Results
Delivered in 13 weeks (1 week ahead). Series A round secured at €3.2M. 50 enterprise clients onboarded within 3 months of launch. Google PageSpeed score: 94.
Tech: React · Node.js · PostgreSQL · OpenAI · AWS