Business platforms & B2B marketplaces
Platforms connecting two professional populations: verified accounts, gated access, internal messaging and confidentiality by default.
Next.jsPostgreSQLAccès par rôle
Market
B2B platform development in Belgium
Belgium is where we have delivered most: five business platforms in production, across insurance broking, accountancy firms, real estate and financial recruitment.
- 5 plateformes livrées
- Professions réglementées
- FR · NL · EN
- 5
- Work cited
- 3
- Expertise involved
- 4
- Technologies used
- 3
- Languages by default
The market where we have the most references
Five of the platforms we have built run in Belgium, all in regulated professions:
Fiderio
selling and merging accountancy firms, buyer subscription at €59/month
Brokeris
selling insurance brokerage portfolios, entirely off-market
OnShare
network of estate agencies sharing mandates and buyers, €150/month ex VAT
Skillio
confidential recruitment in accountancy and finance
BuyMonth
conversion tool for property developers, compliant with the Belgian lending framework
What we have learned from this market
Confidentiality is a feature, not an option. In a country this size, everybody knows everybody: a public sale announcement turns against the seller within days. Graduated visibility is not a refinement, it is the condition for the product to exist at all.
Multilingual is not negotiable. French-, Dutch- and German-speaking, plus the English of the institutions. Our architectures build internationalisation in from the design stage, with a clean URL per language.
Professional federations matter more than advertising. In these markets, credibility runs through the trade's own organisations and peer referral, not paid ads. Nobody types "insurance portfolio sale platform" into a search engine.
What we build
Marketplaces and introduction platforms from €35,000, subscription SaaS products from €25,000, business applications and client portals from €20,000.
Hosting and compliance
Hosting in the European Union by default, with a processing agreement specifying locations and sub-processors. For regulated-profession data, location is decided at quotation stage.
And in Luxembourg
The Luxembourg market has the same structure — accountancy firms, insurance, banking — at greater volume. Our Belgian references are directly relevant there.
Projects run from Aix-en-Provence
Where we are, and how we work
Scoping happens over video, and we travel for the stages that matter: design, acceptance, training. In between, the preview environment stays open continuously.
Aix-en-Provence
Provence-Alpes-Côte d'Azur
Markets served
- Belgique
- Luxembourg
- Suisse romande
- France
- A preview link continuously available from the first week
- You talk to the people designing and building it, with nobody in between
- The code repository is yours from day one
Expertise
The services involved
What we concretely build within this scope.
Subscription SaaS products
Turning a service into a recurring product: trials, plans, automated payment, failed-payment recovery and a self-service customer area.
StripeAbonnementsMulti-comptes
Bespoke web applications
Internal tools, client portals and line-of-business software that replace shared spreadsheets and software nobody uses.
Next.jsPostgreSQLRôles & permissions
Why us
What sets us apart
Four commitments that hold over time, not four slogans.
100% code, zero proprietary platform
No WordPress, no Shopify, no page builder. Your product is written in TypeScript, documented and version-controlled — the repository is yours from day one, and you are locked in to nobody.
Products, not brochures
User accounts, recurring subscriptions, messaging, gated access, payments: we have shipped five platforms running with real paying customers behind them.
Regulated sectors
Insurance broking, accountancy firms, real estate, financial recruitment. We know the data confidentiality, role-based access and domain constraints these professions carry.
Multilingual by default
FR · EN · ES. Internationalisation is built into the architecture, not bolted on as a plugin six months later — essential in Belgium, Luxembourg and Switzerland.
Proof
The work that proves it
Platforms and sites in production, viewable online. No mockups, no invented clients.
59 €/moisBuyer subscription
fiderio.be
brokeris.be
150 €/moisAgency subscription, ex VAT
onshare.be
skillio.be
buymonth.be
The technologies used
Those of the work cited on this page. Code only: no WordPress, no Shopify.
- Next.js
- TypeScript
- PostgreSQL
- Stripe
Method
How a project runs
A detailed quote before we start, and a staging link from week one: you watch the project progress live, not in meetings.
- 01
Scoping
Goals, site structure, content and features. You get a costed scope, line by line.
1 week - 02
Design
Figma mockups of every screen, desktop and mobile, signed off before any development.
2 weeks - 03
Development
Build, back office, content in all three languages. Staging available throughout.
3 to 6 weeks - 04
Launch & support
Testing, redirects, back-office training, then maintenance and monthly improvements.
ongoing
Questions
Frequently asked questions
How do you work with your Belgian clients?
The same way as with the five Belgian platforms already in production: regular video calls, a preview link open from the first week, and travel on site at key milestones. Our clients watch the product progress continuously, not at milestone meetings.
Do you handle Dutch?
The architecture handles it without difficulty: adding a language means adding a set of translations, not rebuilding the site. We work with your translators or your in-house team for Dutch-language content.
Do you invoice in euros, with Belgian VAT?
In euros, yes. For a VAT-registered Belgian company, the service falls under intra-Community reverse charge: we invoice excluding VAT and you account for it. Your accountant will confirm the treatment for your situation.
Journal
Further reading
Platforms
What a B2B marketplace costs, and where the budget goes
The six building blocks to plan for, the ones always forgotten, and the real ranges.
Engineering
Why we work with neither WordPress nor Shopify
This is not technical snobbery. It is a question of three-year cost.
Engineering
What a bespoke website really costs
The breakdown line by line, and why a €1,500 quote ends up costing you more.
Let's talk
Got a project? Say hello.
Tell us what you need: within 48 hours you get technical feedback plus a budget and timeline estimate. No commitment.