The verdict in three sentences
An engineering consultancy does not sell a catalogue, it sells verifiable technical credibility to a public buyer or industrial client. In 2026, a serious brochure site costs between EUR 7,000 and 14,000 depending on the depth of project references and the level of niche technical SEO. The real return comes from an integrated tender-response form and a careers area that captures scarce engineers.
What an engineering firm actually pays for
Price does not depend on the number of pages but on proof density: every reference project must show the client, the mission, the value, the timeline and a measurable result. That structured content is what convinces a municipality or an industrial group, and it is also what fuels ranking on very precise queries ("structural engineering firm Amsterdam", "MEP consultancy tertiary buildings").
| Line item | 2026 range (EUR) | What drives it |
|---|---|---|
| Custom design & UX | 1,800 - 3,500 | Brand, technical iconography |
| Multipage build (12-20) | 2,000 - 4,000 | Number of templates |
| Reference project sheets (15-30) | 1,500 - 3,000 | Copywriting and layout |
| Bilingual EN/local | 900 - 1,800 | Translated volume |
| Careers area + applications | 800 - 1,600 | HR workflow |
| Tender form + niche SEO | 1,000 - 2,100 | Fields, tracking, keywords |
Features that make the difference on tenders
A public buyer spends 90 seconds on a site before deciding whether to consult you. The elements below are not cosmetic: they reduce doubt and shorten the qualification cycle.
| Feature | Business impact | 2026 indicative cost (EUR) |
|---|---|---|
| Reference filter by sector/mission | +lead quality | 700 - 1,400 |
| Certifications page (ISO 9001, industry marks) | Buyer reassurance | 400 - 800 |
| Tender-response form with attachments | -qualification time | 900 - 1,800 |
| Press & technical documentation area | SEO authority | 500 - 1,100 |
| Second language for international markets | New markets | 900 - 1,800 |
| Event analytics (spec downloads) | Sales steering | 400 - 900 |
Mini case study
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Julien, principal of an 18-person structural engineering firm in Amsterdam, answers 40 tenders a year. His old site generated no inbound consultations. He invests EUR 11,500 in a bilingual site with 24 project sheets, a certifications page and a tender form. Six months later, the site generates 7 spontaneous consultations, of which 2 convert into missions worth EUR 45,000 each. The site pays for itself on a single contract, and the cost per inbound lead falls below EUR 1,650 versus several thousand through classic prospecting.
FAQ
How long to deliver an engineering consultancy site? Budget 8 weeks on average: 2 for design, 3 for the build and project sheets, 2 for bilingual content and SEO, 1 for testing. The limiting factor is usually your project managers supplying the references.
Is a bilingual site essential? Yes if you target international industrial groups or European funding. The extra cost is moderate (EUR 900 to 1,800) against the markets it opens.
Is niche technical SEO worth it? On queries like "thermal engineering firm Amsterdam", competition is low: structured content can put you on page 1 in 4 to 6 months, for an initial setup cost of EUR 400 to 900.
Can a tender-response form be integrated? Yes, with attachment upload, acknowledgement and internal notification. Budget EUR 900 to 1,800 depending on fields and tracking.
What annual maintenance budget should I plan? As a 2026 order of magnitude, EUR 80 to 200 per month for hosting, security updates and regularly adding new project sheets.
Let's scope your project. Tell us how many references to publish, your bilingual need and your tender deadline, and we will scope a site between EUR 7,000 and 14,000. 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.
