There are over 350 web development agencies in Belgium, including 140 in Brussels. If you have a need, you'll find what you're looking for. Unless you're a start-up.
Numinam wasn't born out of a business plan or a market opportunity. The agency was born out of a simple observation: nothing in the Belgian web agency ecosystem was really suited to the needs of startups.
Too slow, too standardized, too far removed from the realities on the ground.
After several years immersed in web development and then in the creation of startups, it became clear that the way things were done needed to change. Numinam is the culmination of this journey: an agency shaped by experience, designed for speed, precision, and impact.
January 2016
Leading web agency. SME projects, e-commerce, showcase sites. Good technical immersion, but a classic model, with no particular pressure or strong constraints. A competent agency... among many others.
June 2018
Coddy, Harmonia, Vaibes. Three startups built from scratch. Fundraising, VC pitches, recruitment, pivots, impossible deadlines. Front, back, CRM, mobile: all developed in-house. That's when we really learned what it means to build fast, under pressure, with a limited runway.
December 2025
Back to the web, but with a different outlook: priority to speed, simplicity and business impact. Ultra-fast sites, internal systems, automation. An approach tailored to startups facing the same constraints we do.
We no longer view a project as a list of features, but as a lever for ROI.
We no longer look at a design for its beauty, but for its ability to convert.
We no longer choose a technology for its elegance, but for its impact on the business, the runway, sales cycles, and speed of execution.
We didn't just create another agency.
We created the agency we would have dreamed of having when we were founders.
Startups don't have the same constraints as SMEs. They have 12 to 18 months to prove that they can exist, grow, convince, and scale. They can't afford three-month deadlines, endless workshops, or deliverables designed to impress rather than function.
Tech teams are focused on the product—and rightly so. But everything else, the infrastructure around the product, often ends up in spreadsheets, manual processes, and operational patches. No one has the time. No one has the bandwidth. And yet it all matters.
That's where we come in: not as service providers, but as partners who understand your constraints before you even explain them.
We've been through what you're going through: the runway melting away, impossible deadlines, pivots under pressure, sales cycles stretching out. We instinctively understand your priorities. We speak your language, not that of agencies.
We learned to ship quickly because we had no choice. This constraint is part of our DNA. We apply the same logic to the projects we take on: moving forward at the speed of a startup, not that of a traditional company.
Conversion, internal efficiency, scalability, reduced operational burden. Not "features," not "pages delivered," not design for design's sake. We build for what really influences fundraising, traction, or go-to-market.
We have replaced dozens of hours of manual work internally, automated our own processes, and built our own tools to keep up with the pace. We don't theorize about automation: we have experienced it as a necessity.
No jargon or empty promises. We tell it like it is, even if it's not what you want to hear.
Because every week counts, literally.
What is unnecessary slows things down. What is clear speeds things up.
We don't build things just to look pretty. We build things so you can go further, faster, with less friction.
30 minutes to understand where you stand, what's holding you back, and whether we can help you. A conversation between entrepreneurs — nothing more.
