Brex vs Mayfair
Side-by-side from the Top 11 rankings of The 11 Best Expense Management Software (2026) and The 11 Best Treasury Management Platforms for Startups. Last verified June 7, 2026.
The short answer
Brex ranks higher on Top 11 (#2 vs #10) for CFOs and finance managers choosing expense management tools (Expensify vs Brex vs Ramp vs Concur) / Startup CFOs and founders parking and managing runway. The best financial OS for global startups, combining cards, T&E, and banking.
At a glance
| Brex | Mayfair | |
|---|---|---|
| Top 11 rank | #2 / The 11 Best Expense Management Software (2026) | #10 / The 11 Best Treasury Management Platforms for Startups |
| Score (out of 9.4) | 9.2 | 7.6 |
| Best for | Startups and global teams | Managed treasury service |
| Pricing | $ (Free software) | Basis Points (AUM-based) |
| HQ | San Francisco, USA | New York, USA |
| Founded | 2017 | 2021 |
Brex
The best financial OS for global startups, combining cards, T&E, and banking.
www.brex.comSee full entry in The 11 Best Expense Management Software (2026)
Mayfair
A managed treasury service for startups wanting an expert-led, hands-off approach to cash management.
www.getmayfair.comSee full entry in The 11 Best Treasury Management Platforms for Startups
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.