About usOur story
We are Colengo. We build to Go.
A Dutch company that has been building oneCORE, the engine for configurable commerce, since 2011. Our consultants work from Eindhoven, our project managers, developers and specialists from Chiang Mai. Together we help makers sell their made-to-measure products online, and grow into the biggest in their category.
- Building oneCORE since 2011
- 30+ active clients on oneCORE
- Dutch roots, a team in Chiang Mai

Our story
We build to last. We build to ignite. We build to lead.
Technical expertise, a problem-solving instinct and a foundation that's easy to build on. That's where we started in 2011, and it's what we build on still.
01 · Build to last
A foundation you can build on.
oneCORE is the engine for configurable commerce: one place for your products, rules and prices, developed and used in production since 2011. We keep building on it, year after year, shaped around what our clients make.
Start small with one standard module and grow into a complete commerce ecosystem, with the same quality throughout.

02 · Build to ignite
A team that thinks with you.
We ask the hard questions and show up with ideas nobody expected. Before we build, we dig into your products, your processes and your market.
We don't hand over software and leave. We stay, sleeves rolled up, until it works. And beyond, so you can keep building too.

03 · Build to lead
No ceiling on where you go.
One feature today, a whole ecosystem tomorrow. New product lines, countries, dealers, integrations and AI are added to the platform you already have.
Second place was never the plan. We build for makers who want to be the best in their category, and we keep building until they are.

Dutch roots, team in Chiang Mai
Dutch roots. A team in Chiang Mai.
Colengo is a Dutch company with its office in Eindhoven. oneCORE is built in Chiang Mai, Thailand, by our project managers, developers and specialists, in an office with the mountains on the horizon. One team, one standard, one platform.










Our products
What we build.
One engine, and the tools around it.
oneCORE
The engine for configurable commerce. One platform for your 3D configurator, webshop and sales portal, with your products, rules and prices in one place.
Yuna Player
Your configurator on screens in the store, at fairs and on your customers' own devices. Configure together, see the result in real time and send the quote the moment the design is done.
AI rendering
Product images without a photo shoot for every variant. Your configured product in a realistic setting, from every angle, in thousands of images.
Makers live on oneCORE · Read their stories →
From our founder
Why we build.
"Grow together, have fun, and celebrate every step, even the small ones. That's why I started oneCORE. Not to build software for everyone, but to create something meaningful together with a select group of customers who share our passion and ambition. Because being in a niche doesn't mean you can't build something big."
Leon Marcelissen, founder of Colengo
Whatever your Go looks like.
Book a 30-minute demo with your own products, or try a configurator in 3D first.








