Quentin Declerck

Fractional marketing director for pre-seed and seed startups. I join your team a few days a week — from brand strategy to a live website.

Brussels · Available for new projects·hello@kwen.be

Work

[01]

Eclo

[2018 — 2024]
Co-Founder & Marketing Director

An urban mushroom farm that became one of the top three substrate producers in Europe. I built the brand from scratch, led the 2021 rebrand and carried the story all the way to the funding round.

IdentityB2B positioningFundraising
€4.7M
raised in 2022
Top 3
substrate producers in Europe
Exit
in 2024

Hoona

[2024 — 2025]
Marketing Director

A new preventive wellness center, built from an idea. I turned a complex concept into a clear offer, defined the positioning, led the identity with SIGN agency and shipped the website and booking tools.

PositioningWebsiteBooking tools
0 → 1
brand built from scratch
SIGN
identity agency, led
Live
website and booking shipped

Approach

[02]

I spent seven years building my own company. I know what it means to do everything with little time and a tight budget.

Now I put that experience to work for other founders. I work inside the team, not on the side: I set the strategy, make the marketing calls with you, and get my hands dirty on execution when it's needed.

Quentin Declerck, fractional marketing director in Brussels
Quentin Declerck — Brussels

What I do

  • Brand strategy
  • Go-to-market
  • Marketing & AI
  • Websites & MVPs
  • Art direction & photography

The format

  • A few days a week
  • Embedded in the founding team
  • Strategy + execution
  • No full-time hire

Method

[03]

01Understand

Founder and customer interviews, an audit of the brand, channels and numbers. We start from what exists.

AuditCustomer interviews

02Position

A sharp target, a clear promise, a message that fits in one sentence. Before producing anything.

PositioningMessagingCreative brief

03Build

Identity, website, MVP, content, visuals. I make them myself or lead the people who do.

IdentityWebsitePhotography

04Run

Go-to-market plan, metrics, weekly rituals. We measure, adjust, and I hand over to the team.

Go-to-marketKPIsHandover

Experience

[04]
kwenFractional CMO2025 — Today
HoonaMarketing Director2024 — 2025
EcloCo-Founder & Marketing Director2018 — 2024
Labo Agriculture UrbaineProject Manager · Montreal2016 — 2018
Ligue BrailleDigital communication2011 — 2016

FAQ

[05]

What is a fractional marketing director?

An experienced marketing director who joins your team a few days a week instead of a full-time hire. Also called a fractional CMO, part-time CMO or outsourced marketing lead. You get CMO-level decisions without the cost of a full-time salary.

Who is it for?

Pre-seed and seed startups, and young teams that need to structure their marketing before hiring a full-time marketing director.

How many days a week?

A few days a week, depending on your stage and priorities. The pace adjusts along the way: more intense at launch, lighter once the team is in place.

How is it different from a marketing agency?

An agency executes a brief. I work inside the team: I set the strategy, make the marketing calls with the founders, and produce or lead the execution (identity, website, content, photography).

Where do you work?

I'm based in Brussels and work with startups across Belgium, in Brussels, Wallonia and Flanders, on site or remotely. In French or English.

How do we start?

Email me at hello@kwen.be with a few words about your project. I reply within 24 to 48 hours, and we start with a conversation to see if I can help.

Contact

[06]
hello@kwen.be

You're a founder, you know what you want to build, and you're missing someone to structure the marketing. Let's talk — reply within 24 to 48h.