---
title: "Explainable Lead Scoring | AimRank"
url: https://www.aimrank.io/products/lead-scoring/
description: "A calibrated probability of conversion and a plain-English reason per lead - not a black-box number sales ignores. AI prototype from €1,290."
language: en
updated: 2026-10-09
---

[Products · #03 · Sales & Marketing](https://www.aimrank.io/products/)

TIER S BLUEPRINT

# Explainable Lead Scoring

A calibrated probability of conversion and a plain-English reason per lead - not a black-box number sales ignores.

scaffold from **€1,290**

## How it works

01

### Connect the CRM, read-only

Pipedrive, HubSpot, Salesforce or a spreadsheet. Trains on your own closed-won/lost history - with a leakage audit so it only uses what's known at lead creation.

02

### Calibrated probability per lead

Not "hot/warm/cold" - a percentage that means what it says. When it says 30%, roughly 3 in 10 convert. Validated on your data before ship.

03

### Reasons a salesperson accepts

Top-3 drivers in plain English written into the CRM next to the score. SDRs trust what they can see - no black box, no ignored column.

04

### Routing that changes behaviour

Top decile → senior SDR, double touches. Bottom 30% → nurture only. Drift watch on lead-source mix - a new campaign won't silently break the model.

## Methodology reference

The published method this build is based on, and what it did in production.

**HubSpot** scores every lead's likelihood to close and writes the score, plus its top drivers, back into the CRM.

Predictive lead scoring · as reported by [HubSpot ↗](https://knowledge.hubspot.com/properties/determine-likelihood-to-close-with-predictive-lead-scoring)

Referenced for methodology only. AimRank is not affiliated with, endorsed by, or a customer of these companies; each links to its own public source. Sources last checked September 2026.

## The Four Guarantees™ - this build

The scaffold wires all four in. The PoC proves them on your data, as of that day. Only Implementation keeps them true over time: watched, drift-checked, with recourse.

### Measured value

+1.5pp conversion at reference volume ≈ €120k incremental ARR. Lift/gain eval gate at your SDR capacity cut-off before ship.

### Defensible

SHAP top-3 per lead in plain English; bias controls on scoring features; every score logged with its reasons.

### Self-improving

Calibrated probabilities re-checked continuously; lead-source-mix drift alerts - marketing campaigns change, the model notices.

### Yours & everywhere

Full CRM round-trip (score + reason written back); your cloud, your source. MCP endpoint for your sales agents and copilots.

## The number, sized honestly

Reference buyer: Baltic B2B SaaS or services firm, \~2,000 leads/yr, €4,000 average deal, \~3% cold-to-customer conversion.

**+1.5pp** conversion lift (3% → 4.5%) - the agreed number (conservative)

**€120k** incremental ARR/yr ≈ 30 extra deals at €4k

**\~2 wks** payback at the PoC price if one extra deal closes

**ECE ≤ 0.05** calibration gate, or it doesn't ship

## Three ways to own it

| Tier | What you get | Price | |
| ---------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------- | |
| **Scaffolding** ★ | The full repo - model + calibration + lift harness, audit log, MCP server. Your team wires it to your pipeline. | **€1,290** | |
| **PoC** ★★RECOMMENDED | Trained on your CRM history - ranking quality and explanation sanity checked against your closed deals. Full code + quality report are yours. No guarantee yet - that's the point. | from**€3,900** | |
| **Implementation** ★★★ | Production: live scoring in the CRM, queue integration, drift monitoring, retraining on new outcomes, monthly report - the agreed number (conservative) attaches here. | from **€12,000**\+ from €900/month assurance | |

★ = engagement depth. **PoC is the recommended path**: quality proven on your data before production money. The PoC carries no performance guarantee by design; the agreed number (conservative) attaches at Implementation, informed by the PoC report.

## What we don't promise

**The model is only as good as your deal history.** With fewer than \~500 closed deals on record, expect higher variance in year one and budget for retraining - we tell you this before the contract, not after. And the score changes nothing by itself: the routing rule (who calls whom, when) is where the money is, and your team has to actually follow it.

## Ready to see your own number?

Request the build: within 48h you get a personal reply with the value sized to your volume.

No commitment · reply within 48h · your data stays in the EU