The verdict in three sentences
A corporate institutional website with multiple subsidiaries costs between 25,000 and 80,000 EUR (approx. USD 27,000-87,000) in 2026, excluding campaigns and maintenance. Price is driven by three levers: number of languages, editorial governance (multi-level approval workflow) and integrations (press, investor relations, ERP). Plan a realistic timeline of 4 to 6 months from scoping to launch.
What really pushes the invoice up
Unlike a brochure site, a group site's cost is not driven by page count but by governance complexity. A headless CMS with an approval workflow (writer, reviewer, executive, compliance) alone represents 20-30% of the budget. Add the press room, the investor relations area, WCAG accessibility and security (CSP, logging, GDPR).
| Cost item | Share of budget | 2026 order of magnitude (EUR) |
|---|---|---|
| Design system and mockups | 15% | 5,000 - 12,000 |
| Front-end + CMS development | 30% | 9,000 - 24,000 |
| Editorial governance workflow | 20% | 5,000 - 16,000 |
| Multilingual (per extra language) | 10% | 2,000 - 3,500 / language |
| Press room + investor area | 12% | 4,000 - 10,000 |
| Accessibility + security + QA | 13% | 4,000 - 12,000 |
Standard, Premium or Group: the right bracket
The right tier depends on your structure. A holding with a single strong brand does not have the same needs as a group of ten subsidiaries with distinct identities.
| Tier | Pages | Languages | Integrations | SLA | 2026 price (EUR) |
|---|---|---|---|---|---|
| Standard | 20 - 30 | EN + one | Newsletter, analytics | 99.5% | 25,000 - 40,000 |
| Premium | 40 - 70 | 3 languages | ERP, CRM, press portal | 99.9% | 45,000 - 65,000 |
| Group | 80 - 150 | 4+ languages | Multi-site subsidiaries, IR | 99.95% | 70,000 - 80,000+ |
On top of these, expect recurring costs: maintenance 800-2,500 EUR/month, managed hosting 300-900 EUR/month, plus optional editorial support.
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Mini case study
Mathilde, communications director of an industrial group in New York (4 subsidiaries, 1,200 staff), wants a Premium site in EN/FR/DE. Premium base at 52,000 EUR, plus two extra languages at 3,000 EUR each, i.e. 58,000 EUR. With maintenance at 1,500 EUR/month, the first-year total reaches 76,000 EUR. By internalizing publishing through the CMS workflow, her team saves about 1.5 person-days per week on updates, roughly 70 days/year — a tangible return in year one.
FAQ
Why does a group site cost more than a simple corporate site? Multi-level editorial governance, multilingual support and integrations (IR, press, ERP) make up 40-50% of the budget. A simple corporate site without these stays under 25,000 EUR.
How long to deliver a group site? Plan 4 to 6 months: 3-4 weeks of scoping, 8-12 weeks of design/dev, then QA, accessibility and content migration. A 100+ page Group project can reach 7 months.
Can the budget be phased? Yes, a common split is 40% at kickoff, 40% at QA, 20% at launch. You can also ship an EN/FR core then add languages and the investor area in phase 2.
Which CMS for governance? A headless CMS (like Sanity or Strapi) with roles and an approval workflow is the 2026 standard. It enables multi-level review and scheduled publishing without technical intervention.
Should we plan for accessibility? Yes, mandatory for large companies. Build the audit and remediation into scoping: retrofitting accessibility later costs 2-3 times more.
Let's scope your project. Tell us your structure (subsidiaries, languages, desired integrations) and an indicative budget: we will recommend the right tier and a phasing plan. 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.
