How the Trust Score is calculated
The five sub-scores, their weights, grade bands, caps, and how to see what's moving your score.
The Trust Score is a number from 0 to 100 with a letter grade. It's calculated the same way for every contractor, and the current weights are always published on the Verification Standards page.
The five sub-scores
| Sub-score | Default weight | What feeds it |
|---|---|---|
| Compliance | 25% | Share of required checks verified and current; penalties for expired items and days lapsed in the last 12 months |
| Safety | 25% | TRIR and DART against your industry average, EMR, citations by severity, safety programs, L4 audit score |
| Financial | 15% | Business credit band, years in business, liens and judgments, bonding capacity |
| Performance | 25% | Bayesian average of verified review dimensions, on-time rate, rehire rate |
| Responsiveness | 10% | Median response time to requests, bid response rate, on-time renewals |
When a category has no data yet (for example, no reviews), it starts at a neutral value instead of zero, so new contractors aren't punished for being new.
Grades
| Grade | Score |
|---|---|
| A | 90-100 |
| B | 80-89 |
| C | 70-79 |
| D | 60-69 |
| F | under 60 |
You'll see Not yet rated until Level 2 is complete, and a Limited data label with fewer than 3 reviews.
Caps that override the number
- An expired license or insurance policy caps the grade at D until it's renewed.
- An open sanctions match sets the grade to F and hides the profile from search.
- A fatality citation in the last 3 years caps the grade at C pending analyst review.
Seeing why your score is what it is
Your Score page lists every sub-score, the top three factors raising it and the top three lowering it, in plain language, such as "EMR 0.82 is better than 78% of electrical contractors". It also shows How to improve actions with an estimate of the points each would add.
Companies see the same explanation, minus the improvement tips.
When it changes
Scores recompute whenever an input changes (a check is verified, a policy expires, a review is published) and again every night. A daily snapshot builds the 24-month trend chart. If your score moves 10 points or more, you and the companies monitoring you are notified.
Something looks wrong
Use Report a data error on your Score page and pick the exact input. An analyst reviews it and corrects the record if it's wrong.
Paid services never change a Trust Score. Expedited Review, audits and Concierge only change speed and who does the work.