The verdict in three sentences
For a construction or engineering firm answering more than 40 tenders a year in Europe or the Middle East, the technical proposal (method statement) is the main bottleneck: 3 to 6 days of work per bid, often written under deadline pressure. A custom AI assistant, fed with your past proposals, project references and team CVs, produces a first draft aligned with the tender instructions and specifications in a few hours. With a budget of EUR 14,000 to 28,000 (about USD 15,000 to 30,000), payback usually comes within 6 to 12 months once volume exceeds 50 bids a year.
Three options for producing technical proposals
Public procurement in the EU (TED notices, Directive 2014/24/EU) and in Gulf markets demands increasingly detailed technical submissions: methodology, schedule, staffing and equipment, quality, health, safety and environment. Three approaches coexist in mid-sized firms.
| Criterion | External bid writer | Generic AI tool | Custom AI assistant |
|---|---|---|---|
| Upfront cost | EUR 0 | EUR 0 to 500 | EUR 14,000 to 28,000 |
| Cost per bid | EUR 750 to 1,900 | EUR 20 to 60 (subscriptions) | EUR 30 to 85 (API + hosting) |
| Internal time per proposal | 1 to 2 days (briefing, review) | 2 to 4 days | 1 to 2 days |
| Knowledge of your references | Partial, briefed every time | None | Complete (indexed document base) |
| Compliance with tender rules | Good if experienced writer | Weak, frequent hallucinations | Automatic requirement checks |
| Data confidentiality | NDA | Data sent to a third party | Controlled hosting, no reuse |
| Time to deploy | Immediate | Immediate | 8 to 14 weeks |
An external writer still makes sense for a handful of strategic bids each year. A generic consumer chatbot speeds up formatting but knows nothing about your actual projects: it invents references, which can lead to disqualification. The custom assistant combines both benefits: AI speed and company memory.
What a custom AI assistant includes
The core is an internal knowledge base: 50 to 300 past proposals, reference sheets (client, contract value, year, completion certificate), CVs of site managers and engineers, equipment fleet, ISO 9001, 14001 and 45001 certificates. The assistant reads the new tender's instructions and specifications, extracts the scoring criteria, then builds an outline and a section-by-section first draft, citing the internal sources it used.
| Module | Function | Indicative 2026 budget |
|---|---|---|
| Document ingestion and indexing | PDF, Word, Excel import, OCR of scans | EUR 2,800 to 5,100 |
| Automatic tender analysis | Extraction of criteria and required documents | EUR 2,300 to 4,200 |
| First-draft generation by section | Methodology, schedule, resources, HSE | EUR 3,700 to 7,400 |
| Selection of relevant references and CVs | Similarity score by project type | EUR 1,900 to 3,700 |
| Review interface and Word export | Approval, comments, branded layout | EUR 1,900 to 4,200 |
| Secure hosting and access rights | Dedicated server, logging, backups | EUR 1,400 to 3,200 |
Then budget EUR 190 to 560 per month for hosting, language model usage and maintenance (2026 order of magnitude). Typical schedule: 2 weeks of scoping and document collection, 6 to 8 weeks of development, 2 to 4 weeks of testing on real bids.
One caveat: the AI produces a first draft, never a final submission. Review by the technical director remains mandatory, especially for schedule commitments and allocated resources, which carry contractual liability.
Mini case study
Omar, business development director of a 140-employee civil engineering firm in Dubai, answers 90 tenders a year. Each proposal ties up an engineer for 4 days, or 360 person-days. At a loaded cost of EUR 130 per day, that is EUR 46,800 a year. After deploying a custom assistant billed EUR 20,500, drafting time drops to 1.5 days per bid: 135 person-days, or EUR 17,550. With EUR 370 per month in running costs (EUR 4,440 a year), net savings reach EUR 24,810 in the first year, and the firm can answer 30 more tenders with the same team. Payback comes in under 10 months.
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FAQ
Our proposals are confidential: where is the data stored?
The assistant can be hosted on a dedicated server in the EU or the UAE, using a language model through an API that does not reuse your data for training. Access is named and logged, which supports GDPR compliance, particularly for CVs.
How many past bids do we need to start?
A base of 40 to 60 recent proposals is enough for usable results. Beyond 150 bids, the relevance of suggested references improves noticeably, especially for specialised lots.
Can the AI write in several languages?
Yes, current models handle English, French and Arabic. A bilingual option adds EUR 1,400 to 2,800 to the budget to adapt document templates.
What real time savings can we expect?
On observed projects, drafting time is divided by 2 to 3, saving 2 to 4 days per bid. The gain depends on the quality of your document base and on review discipline.
Can we start with a pilot?
Yes, a pilot limited to one project type (roads, buildings or water infrastructure) costs EUR 5,600 to 8,400 and is delivered in 5 to 6 weeks.
Let's scope your project. Send us your annual tender volume and two sample proposals: we will price the scope, indicative budget and schedule of a custom assistant. 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.
