The verdict in three sentences
A multi-subsidiary corporate website in Amsterdam costs 90,000 to 240,000 EUR in 2026 depending on the number of entities and the level of custom work. The technical foundation rests on a multi-site architecture, a shared design system and a headless CMS with multi-level editorial governance. The benchmark timeline is 4 to 6 months, and pooled maintenance cuts the per-subsidiary cost by 30 to 40 % versus separate sites.
The budget of a group corporate website in 2026
Price mainly depends on the number of subsidiaries, languages and integrations (ERP, investor area). Ranges observed in the Netherlands (2026 order of magnitude).
| Configuration | Subsidiaries | 2026 budget | Timeline |
|---|---|---|---|
| Corporate standard | 2-3 | 90,000 - 130,000 EUR | 3-4 months |
| Corporate premium | 4-6 | 145,000 - 195,000 EUR | 4-5 months |
| Group / holding | 7+ | 210,000 - 240,000+ EUR | 5-6 months |
| Investor area (option) | - | 21,000 - 47,000 EUR | +4 weeks |
| Design system delivered | - | 32,000 - 65,000 EUR | included premium |
A headless CMS (Sanity, Strapi) lets you share components and branding across subsidiaries while letting each entity manage its own content.
Multi-site: pool without flattening
The challenge is to guarantee a coherent group identity while respecting each subsidiary's editorial autonomy. Here is the breakdown of annual running costs.
| Item | Separate sites (5 subs) | Pooled multi-site | Saving |
|---|---|---|---|
| Hosting/CDN | 16,000 EUR/yr | 6,400 EUR/yr | 60 % |
| Technical maintenance | 40,000 EUR/yr | 24,000 EUR/yr | 40 % |
| Design evolutions | 27,000 EUR/yr | 12,000 EUR/yr | 55 % |
| CMS licences | 20,000 EUR/yr | 8,000 EUR/yr | 60 % |
| Annual total | 103,000 EUR | 50,400 EUR | ~51 % |
Multilingual support (Dutch, English, plus RTL where needed) and WCAG 2.1 AA accessibility are prerequisites for a serious institutional group.
Mini case study
Mr Bakker heads communications at an industrial holding in Amsterdam grouping 5 subsidiaries. In 2026 he chooses a pooled multi-site platform at 180,000 EUR delivered in 5 months. Before, each subsidiary ran its own site: 103,000 EUR/yr in combined recurring costs. After pooling: 50,400 EUR/yr, i.e. 52,600 EUR saved every year. The upfront investment is thus paid back by running-cost savings alone in roughly 3.5 years, not counting the brand value of a unified group identity.
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FAQ
How long to deliver a multi-subsidiary site in Amsterdam?
Expect 4 to 6 months for a group of 4 to 7 entities, including design system, content migration and QA. An investor area adds about 4 weeks.
Is a headless CMS really necessary?
For a group, yes: it centralises components and branding while giving each subsidiary an autonomous back office. It also eases multilingual content and future mobile apps.
How do you handle several languages on one site?
RTL/LTR support is handled at the design-system and CMS level. Budget for translation and per-language editorial governance to keep consistency.
Is pooled maintenance riskier?
No, quite the opposite: a single codebase reduces technical debt and speeds up security fixes deployed simultaneously across all subsidiaries.
Can we add a subsidiary after launch?
Yes: that's the whole point of multi-site architecture. A new entity reuses the design system and deploys in 3 to 5 weeks instead of starting from scratch.
Let's scope your project. Group or holding in Amsterdam, 3 to 8 subsidiaries, indicative budget 90,000 to 240,000 EUR, delivery within 4 to 6 months: tell us the number of entities and target languages. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
