About / K6

A family business that does the work.

Two brothers and a sister founded K6. The managing director runs it with her two brothers, alongside specialists in marketplaces, content, logistics and software.

Meet the leadership How we work with brands
  • Amazon · NL BE DE PL FR IT ES SE UK IE
  • bol.com · NL BE
  • OTTO · DE
  • Kaufland · DE AT PL CZ SK FR IT
  • Allegro · PL CZ SK HU
24 country storefronts where K6 received orders, January–August 2026, measured in K6’s own operating software.

Leadership

Who you would actually deal with.

The people who make the decisions carry them out. There is no layer in between, and no one reading a brief back to you.

  • Florence Krajenbrink

    Florence Krajenbrink

    Managing Director

    Published with permission

    Decides which brands K6 takes on, agrees each plan with the owner and approves everything K6 publishes.

    On LinkedIn

The company record

We learned marketplaces by running them.

Product data, account health, delivery, compliance, advertising, the daily pricing decisions. That experience now helps the brands we run enter and grow across Europe without building every local process themselves. The way we work has not changed since then; what changed is the software we built to run it.

Founded 2018 A marketplace seller first. We learned the work on our own stock before we ran it for anyone else.
Leadership Three siblings The founding family still leads the company.
The team Specialists around the family Marketplaces, content, logistics, software.
The tools K6 Software, built in-house Our own software brings the signals together. People stay responsible for every important decision.
  1. 2018

    Founded in Rotterdam

    First sales on bol.com the same year.

  2. 2019

    First Amazon sales

    The European operation begins.

  3. 2024

    First Allegro sale

    Central Europe joins the plan in November.

  4. 2025

    First Kaufland order

    A second German-speaking route opens in October.

  5. 2026

    One European operation

    New Rotterdam HQ, two new specialists, 24 country storefronts with orders in January–August 2026.

From company records, public seller profiles and K6’s own order data.

How we are organised

One accountable owner per area.

K6 is small on purpose. Every area has a name against it, and that person answers for it — including when it goes wrong.

  • 01Ownership

    Commercial partnerships

    Decides which brands K6 takes on and agrees each plan with the owner. Approves everything K6 publishes.

  • 02Ownership

    Marketplace operations & software

    Runs the daily selling on every marketplace and builds the K6 Software the work runs on.

  • 03Ownership

    Content & marketing

    Builds the listings. Writes the articles and updates K6 publishes, in plain language and with sources.

K6 Trading on LinkedIn

Our offices

Two locations, one operating team.

  • Location 01Headquarters

    Rotterdam

    Operations, warehouse & logistics.

    Haltewachter 2-4 · 3034 KE Rotterdam

  • Location 02Growth Office

    Amsterdam

    Partnerships, commercial & expansion.

    Keizersgracht 555 · 1017 DB Amsterdam

Careers at K6

Work with K6

Looking for a European operating partner?

Bring us the objective, the assortment and the constraints. We’ll tell you what we would do, and where we would not be the right partner.

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