The verdict in three sentences
AI lead scoring wired to your CRM (HubSpot, Salesforce, Pipedrive) costs in 2026 between EUR 12,000 and EUR 40,000, delivered in 6 to 10 weeks. Trained on your won/lost deal history, it prioritizes the highest-probability leads and adds +10 to +20 % conversion. The decisive factor is not the model but the quality of your data.
What the 2026 budget covers
The project includes a data audit, building the scoring model, CRM integration and displaying the score on the rep's record.
| Item | 2026 order of magnitude | Type |
|---|---|---|
| Audit + cleaning historical data | EUR 3,000 - 9,000 | One-off |
| Scoring model + training | EUR 5,000 - 15,000 | One-off |
| CRM integration + score display | EUR 3,000 - 10,000 | One-off |
| Dashboard + drift monitoring | EUR 1,000 - 6,000 | One-off |
| Retraining + maintenance | EUR 300 - 900 / month | Recurring |
| Inference + hosting | EUR 100 - 400 / month | Recurring |
Impact on conversion and CAC
By focusing sales effort on hot leads, you raise conversion and lower acquisition cost. Orders of magnitude for a B2B team.
| Leads / month | Conversion before | Conversion after AI | Extra deals / month |
|---|---|---|---|
| 300 | 8 % | 9.2 % | +3.6 |
| 600 | 10 % | 11.8 % | +10.8 |
| 1,000 | 12 % | 14.4 % | +24 |
| 2,000 | 9 % | 10.8 % | +36 |
If the average deal is EUR 4,500, +24 deals/month is roughly EUR 108,000 of additional monthly revenue in Dublin in 2026.
Data quality and model maintenance
A scoring model is only as good as its data. You need enough history (ideally 12 to 24 months of deals), consistently filled fields and a stable definition of a won lead. The model drifts over time: without quarterly retraining, relevance drops. Budget EUR 300 to 900/month of maintenance to watch drift and refresh the model.
Mini case study
Thomas runs a 6-rep team in Dublin, 1,000 leads/month, 12 % conversion, EUR 4,500 average deal. He invests EUR 28,000 in AI scoring. Conversion rises to 14.4 %, i.e. +24 deals/month, about EUR 108,000 of extra revenue. Even at a 25 % margin, the monthly gain tops EUR 27,000: integration pays back in the first full month of use.
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FAQ
How much history is needed to train the model?
Ideally 12 to 24 months of won and lost deals. Below that, start with business rules and switch to AI once volume is enough.
Does scoring replace sales judgment?
No, it prioritizes. The rep stays in control: the score sets the order of attack, it does not close deals.
How much is maintenance?
EUR 300 to 900/month to monitor drift and retrain. It is essential: a frozen model loses relevance within months.
Which CRMs are compatible?
HubSpot, Salesforce, Pipedrive and most CRMs with an API. Integration is EUR 3,000 to 10,000 depending on the tool.
How soon do you see the effect?
Scoring is live in 6 to 10 weeks, but the measurable conversion effect appears after 1 to 2 sales cycles.
Let's scope your project. Share your CRM, lead volume and history depth for a tailored estimate. 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.
