More than just dashboards.
Custom IoT Portals & Web Apps.
Turn your sensor data into a real product. We develop scalable web applications, customer portals and management interfaces. Branded for your company, seamlessly integrated with our infrastructure.
- Multi-Tenant SaaS
- White-Label Ready
- API-First Architecture
When standard tools hit their limits.
Tools like Grafana are excellent for technicians, but often too complex for end customers or management. Those who want to monetize IoT data need their own interfaces.
The 'Admin Look'
Technical dashboards overwhelm users who aren't engineers. The UX is functional, but not intuitive or attractive.
Custom UX/UI
We build interfaces that hide complexity. Clear, modern and focused on user value (e.g., 'Is the machine healthy?').
Missing Business Logic
Standard platforms can't write invoices, invite users, or model subscription plans.
SaaS Features
Integration of user management, billing (Stripe/Chargebee) and access control (RBAC) directly in the web app.
Brand Experience
Your customer should see your brand, not the logo of a software vendor.
White-Labeling
From the login screen to the URL (portal.your-company.com) - the application looks 100% like yours.
Features for IoT business models.
Fleet Management
Managing thousands of devices in list and map views. Status monitoring, firmware updates and configuration with one click.
Multi-Tenancy
Strict data separation. Customer A sees only their sensors, customer B only theirs. Perfect for service providers and OEMs.
Digital Twins
Visual representation of machines, buildings or facilities in the browser. Interactive floor plans instead of raw numbers.
Rule Engines & Alarms
User-friendly editors so your customers can create their own alarms ('If temperature > 50°C, send email to technician').
merkaio WaitWatch
Our waiting room monitoring system shows how we translate IoT data into an intuitive user interface.
- Real-time occupancy of all waiting areas
- Historical heatmaps for staff planning
- Responsive design for all devices
Modern. Fast. Maintainable.
We rely on proven web technologies that will still be standard in 5 years.
Frontend
React, Next.js, Vue.js - Fast loading times, SEO-friendly.
Backend
Node.js, Python - Direct processing of IoT streams.
APIs
REST, GraphQL, WebSocket - For real-time data without page reloads.
Infrastructure
Hosting on the merkaio cloud stack (Docker/Kubernetes).
What we build.
The OEM Customer Portal
A machine builder sells their equipment with 'Smart Monitoring'. The end customer logs in and sees OEE, downtime and maintenance intervals of their machine.
Smart Building Management
Facility managers see the status of 50 buildings on a map. Click on a building to open floor plans with live temperature and occupancy.
The Energy SaaS
A portal for tenants to view their own water and heat consumption (EED-compliant), including download of monthly statements.
No app without foundation.
The most beautiful frontend code is useless without stable data. Our web apps access merkaio ops infrastructure directly.
- No synchronization problems.
- Direct access to ThingsBoard or ChirpStack APIs.
- High-performance queries from TimescaleDB or InfluxDB.
We're not an agency that connects to an API they don't understand. We build the API and the app.
Frequently Asked Questions
Leading companies worldwide trust merkaio
“With Timo and Robin, you're not only on the safe side technically - you also get the best human support! Whether it's quick help in everyday life or complex IT solutions: the guys from merkaio think along with you, act quickly and speak a language you understand. The collaboration is uncomplicated, reliable and always on an equal footing. That makes IT fun - and above all: it works! Big thank you to the team!”
Sonja Aßer
Data Manager, ARGE, Germany
“I got to know Timo and Robin as dedicated and professional partners who make a lot of things possible for their clients that initially seem impossible. I felt very well advised. The services offered have thoroughly convinced me.”
Andrea Pawlowski
Communications Manager, Golem.de, Germany
“I recently worked with Timo and the merkaio team, and honestly, it turned out to be one of the best tech decisions I have made for my business. Right from the start, Timo took the time to walk me through every step in a simple and calm way. No matter how many questions I had, he never rushed me. The results speak for themselves. With merkaio, we reduced our monthly expenses from $1,300 down to $250. This was a huge win for us.”
Aleksandr Shuliko
CTO, EVA Real Estate, UAE
“merkaio manages our Proxmox cluster reliably and professionally. The team handles continuous monitoring and regular updates for us and responds very quickly to any issues or inquiries. They also configure new nodes, systems, and applications that we need to add to our cluster. With merkaio's proactive support, our cluster and the business-critical applications running on it remain stable, and high availability is consistently ensured. We value the professional collaboration and the noticeable relief it brings to our daily operations.”
Pascal Hakkers
CEO Aphy B.V., Netherlands
“Counting on the merkaio team was crucial, their expertise and solutions gave us the pace to deploy in production our services, even suggesting and performing improvements over our configuration and setup. We expect to keep counting on them for continuous maintenance of our services and implementation of new solutions.”
Gabriel Sanz Señor
CEO Odiseo Solutions, Spain
“From the initial consultation to the final implementation, everything was absolutely professional, efficient, and to my complete satisfaction. I particularly appreciate the clear communication, transparent pricing, and the comprehensive expertise that both bring to the table. They take care of the maintenance, which frees up my time enormously and allows me to focus on other important areas of my business - with the good feeling that our IT is in the best hands. I can recommend merkaio without reservation!”
Sebastian Maier
CEO Yonju GmbH
“We have had very good experiences with Mr. Wevelsiep and merkaio. The consultation was professional, clearly understandable, and at fair prices. The team not only implemented our requirements but also thought along and proactively. Instead of just processing individual tasks, they provided us with well-founded explanations that strengthened our own understanding. merkaio took a lot of pressure off us with their structured approach - that was exactly what we needed and is the reason why we keep coming back.”
Matthias Zimmermann
CEO Annota GmbH
“Robin and Timo provided excellent support! We received truly competent advice and will gladly return to their services in the future.”
Simon Deutsch
CEO WiseWhile UG
Let's start your IoT project. Digital and on-site.
We don't just deliver software - we deliver the complete solution. From selecting and installing sensors in your facility to secure cloud operations. Talk to engineers who can do both.
Your contact
Timo Wevelsiep
Lead IoT Solutions Architect