The verdict in three sentences
An institutional group website in Miami costs, in 2026, between EUR 45,000 and 180,000, depending on the number of subsidiaries, editorial governance and technical architecture. The item that structures the budget isn't design but multi-site management: how many entities, how many languages, how many approval levels. The headless vs classic CMS choice can swing maintenance cost by 30 to 50% over three years.
Multi-subsidiary scope: what drives the price
A group doesn't have a site, it has an ecosystem: corporate site + subsidiary sites + sometimes an investor space and an intranet. Sharing the design system is the key to savings.
| Scope | Indicative 2026 cost (EUR) | Timeline |
|---|---|---|
| Corporate site only (30-50 pages) | 45,000 - 80,000 | 3-4 months |
| Corporate + 3 subsidiaries | 80,000 - 130,000 | 4-6 months |
| Corporate + IR / investor space | +20,000 - 40,000 | +6-8 wk |
| Proprietary design system delivered | +15,000 - 30,000 | included |
| Multi-subsidiary (5+) + multilingual | 130,000 - 180,000+ | 6-9 months |
An additional subsidiary, once the design system is in place, costs EUR 8,000 to 20,000 instead of a full site: that's the whole point of a shared architecture.
Headless vs classic CMS and content governance
Editorial governance — who writes, who approves, who publishes — is a group's real subject. A headless CMS (Sanity, Strapi) shines in multi-site and multi-channel; a classic CMS (advanced WordPress) stays faster to grasp for non-technical teams.
| Criterion | Headless CMS | Classic CMS |
|---|---|---|
| Initial cost (EUR) | 12,000 - 30,000 | 6,000 - 15,000 |
| Native multi-site | Excellent | Average (plugins) |
| Approval workflow | Custom | Standard |
| Maintenance / year | 6,000 - 12,000 | 8,000 - 18,000 |
| Non-tech usability | Average | Good |
| Multichannel (app, portal) | Native | Limited |
2026 rule: beyond 3 sites or a multichannel need, headless is almost always more cost-effective over time despite a higher initial cost.
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Mini case study
Claire, communications director of a 4-subsidiary industrial group in Miami, must unify 4 disparate sites with a two-level approval workflow (writer then management). Accepted quote: EUR 95,000 — shared design system, headless CMS, corporate site + 3 subsidiaries, editorial workflow, EN/ES bilingual.
Her maintenance math: previously, 4 vendors billed about EUR 32,000/year in total. Now, a single shared foundation costs EUR 11,000/year. Annual saving: EUR 21,000, i.e. payback on the rebuild gap in about 3 years, not counting brand image and consistency gains.
FAQ
How much does an institutional group website cost in 2026? From EUR 45,000 for a corporate site alone to EUR 180,000+ for a multi-subsidiary multilingual ecosystem. The number of subsidiaries and languages is the main price driver, ahead of design.
Headless or classic CMS? Beyond 3 sites or an app/portal need, headless is generally more cost-effective over 3 years despite an initial cost of EUR 12,000 to 30,000. Below that, a well-configured classic CMS often suffices.
How long to deliver? Budget 3 to 4 months for a corporate site, 4 to 6 months with 3 subsidiaries, up to 9 months for a full multilingual ecosystem. Governance and content migration are often the critical path.
How much to add a subsidiary later? Once the design system is in place, EUR 8,000 to 20,000 per subsidiary instead of a full site. That's the major economic argument for a shared architecture from the start.
What annual maintenance budget should I plan? Between EUR 6,000 and 18,000/year depending on CMS and number of sites, including security, updates, enhancements and support. Headless pulls this cost down in multi-site setups.
Let's scope your project. Tell us the number of subsidiaries, languages and your approval levels, and we'll frame the architecture and an indicative budget. 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.
