Mercury
Worth it
Confidence: Medium
A strong free business-banking pick for US-based startups and small teams that bank fully online.
Comparison
Mercury vs Brex
Mercury lands on Worth it, and Brex lands on Depends.
Brex
Depends
Confidence: Medium
Buy if you're a VC-backed startup or scaling company that needs cards, banking, and spend controls unified.
| Compare | Mercury | Brex |
|---|---|---|
| Verdict | Worth it | Depends |
| Best for | US-based startups | VC-backed startups |
| Who it's not for | Companies without a US entity | Solo founders wanting a simple card |
| Privacy | No known public vulnerabilities found in the sources reviewed.11 | No known public vulnerabilities found in the sources reviewed. |
| Support quality | G2 praise vs Reddit complaints; mixed | No direct support evidence in sources |
| Public sentiment | Reviews are mostly positive on ease of use and design, with a vocal minority on Reddit complaining about account issues. | G2 reviewers are strongly positive while Trustpilot and some Reddit threads surface frustrated users.13 |
| Biggest gotcha | Reddit users warn of account issues . keep a backup bank relationship⁶ | Headcount-based pricing means costs jump as you hire . model it first15 |
Pick Mercury when
- US-based startups
- Remote-first small teams
- Founders sending global payments
- Budget-conscious small businesses
When Mercury is not a fit
- Companies without a US entity
- Businesses needing branch or cash-deposit services
- Teams wanting guaranteed hand-holding support
- Guess: cash-heavy retailers with frequent deposits
Pick Brex when
- VC-backed startups
- Scaling finance teams
- Enterprise spend control
- Companies consolidating cards + banking
When Brex is not a fit
- Solo founders wanting a simple card
- Tiny teams without finance staff
- Buyers wanting transparent flat pricing
- Volunteer-heavy nonprofits (per-user pricing bites)
Sources
- Mercury . official sitemercury.comofficial
review
- Mercury Business Account: 2026 Review . NerdWalletnerdwallet.comreview
- Mercury Bank Review 2026 . Forbesforbes.comreview
- Mercury Reviews . Trustpilottrustpilot.comreview
review
review
review
news
- Mercury Product Security pagemercury.comsecurity
- Brex customer service reviews . Trustpilottrustpilot.comreview
- Brex pricing depends on headcount . SpendFlospendflo.comreview
- Brex Business Account Review . Airwallexairwallex.comreview