About 3dge.

About 3dge.

About 3dge.

About 3dge.

Why I started 3DGE.

I’m Bart Kalmeijer, the founder of 3DGE.

After ten years working in marketing, the same problem showed up everywhere. Great work, happy customers, and almost none of it captured in a way that worked in the sales process.

The proof existed. In customer conversations nobody transcribed.In reviews on Capterra and G2, In NPS scores nobody formatted. In results that had never been written down.

The infrastructure to turn it into something that closed deals simply did not exist.

I built 3DGE to create that infrastructure. Not just better case studies. A proof program. One that runs, compounds, and keeps working as the company grows.

Why I started 3DGE.

I’m Bart Kalmeijer, the founder of 3DGE.

After ten years working in marketing, the same problem showed up everywhere. Great work, happy customers, and almost none of it captured in a way that worked in the sales process.

The proof existed. In customer conversations nobody transcribed.In reviews on Capterra and G2, In NPS scores nobody formatted. In results that had never been written down.

The infrastructure to turn it into something that closed deals simply did not exist.

I built 3DGE to create that infrastructure. Not just better case studies. A proof program. One that runs, compounds, and keeps working as the company grows.

"Bart from 3DGE turned complex IT/cloud concepts into compelling content that drove real engagement. His work on case studies consistently elevated our B2B campaigns."

Brendan Dekker — Marketing Manager, Uniserver

How we work

3DGE is not a traditional agency with layers of account managers and inflated retainers. You work directly with me, supported by a vetted network of specialists: Product Marketing `Managers, case study writers, and more - brought in depending on what your proof program needs.

You always work directly with me.
Every specialist is handpicked for domain expertise and proven quality.

This model keeps us lean, focused, and entirely oriented around one thing: proof that closes deals.

Our approach

Everything we build is structured around three phases:

Audit: We clarify your ICPs, map exactly what proof you have, what is missing, and what to build first. You leave knowing precisely where your proof gap is.
Sprint: We build the engine - interview frameworks, operating system, tooling, and activation playbook. Everything required to run a repeatable, scalable proof program.
Retainer: We run it. Case study production, program management, sales activation, and continuous improvement - month by month, compounding over time.

This framework keeps marketing simple, scalable, and tied directly to growth.

What you can expect

Working with 3DGE means:

Proof that gets used: Assets structured, tagged, and activated so your sales team can find the right proof for the right buyer at the right moment.
A programme that compounds: Every new customer win builds on the last. The library grows. The sales cycles shorten. The win rate improves.
Infrastructure you own: The operating system, the frameworks, the asset library - all of it stays with you. When you are ready to bring proof in-house, the foundation is already there.

We measure everything, iterate constantly, and adapt to your stage, whether you are raising a seed round or scaling into new markets.

Small by design, built to scale with you

3DGE is intentionally small. That keeps quality high, overhead low, and focus sharp. When your program scales, we scale with it - bringing in the right specialists at the right time, without adding complexity you do not need.

If you are ready to stop leaving proof on the table, let's talk.

Services