Invoker
digital agency Groningen
Founded by Maarten Keizer. 20+ years in web development, system administration and software architecture: building complex systems, integrations and custom work that holds up in practice. Tool-agnostic, always what works best.
Twenty years online,
one point of contact
From shared hosting in 2004 to multi-agent AI systems in 2026. The technology changes, the principle doesn't: just make things that work.
What we
stand for
Three lines in one config file. They decide which projects we take on, how we communicate and which choices we make when there's a trade-off.
Clarity
No needless complexity. We communicate clearly and deliver solutions that make sense straight away.
Reliability
No surprises afterwards. A solid digital foundation you can rely on.
Results
Simple and fast, even without a manual. Just a good website or workflow that simply works.
The team behind Invoker
Invoker is a personal agency, founded and run by Maarten: web developer, system administrator and software architect with more than 20 years of experience. He builds complex systems, designs software and integrations between platforms, and turns employees' problems and improvement ideas into technology that works in practice. From hosting and security to automation, Claude hosting and custom work: always with a practical approach, no needless complexity, solutions that simply work.
Works tool-agnostic: always chooses what works best for your situation, independent of brands or platforms.
Can we help
your business?
Digital agency in Groningen for Claude hosting, websites, automation and AI agents that simply do what they should. We handle the tech, you handle the growth.
- Experience// years online20y
- Projects// live & running100+
- Tool lock-in// always the best solution0