Brex has a Proven Score of 77/100 (Established). Mercury has a Proven Score of 62/100 (Established). Brex ranks higher in Business banking & cards. Both are in Business banking & cards on the Proven Trust Index. Vendors cannot pay to change a score. Scores can't be bought.
| Input | Brex | Mercury |
|---|---|---|
| Proven marketplaces | 14.7 / 15 | 13.1 / 15 |
| Member redemption clicks | 10.2 / 15 | 7.9 / 15 |
| Client quality | 20 / 20 | 16 / 20 |
| Operating tenure | 6 / 10 | 6 / 10 |
| Market standing | 10 / 10 | 6 / 10 |
| Connected relationships | 4.9 / 10 | 3.5 / 10 |
| Connected data | 0 / 5 | 0 / 5 |
Shared
No recorded best-for field differs.
Brex · Mercury · Best Business banking & cards for startups, ranked by the Proven Trust Index
Data updated 2026-10-27.
Source: Proven platform data, public records and vendor websites. Vendors cannot pay to change a score. Scores can't be bought. Data updated 2026-10-27. About the data · Proven