The Fintech Index
20 reviews 5 categories 1 research report Updated Sep 23, 2026
BNK

Business banking & treasury

Digital business accounts, cards, and treasury tooling aimed at startups and growth companies.

Highest scores

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  1. 1

    Brex

    8.1/10 Recommend

    Growing and multi-entity firms seeking corporate cards, travel and expense policy together in a single system, with local-currency cards for use abroad.

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  2. 2

    Mercury

    7.9/10 Recommend

    Startups and small firms in the US wanting free business banking, a fee schedule that is clear, and one place for bill pay, cards and treasury.

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  3. 3=

    Airwallex

    7.8/10 Conditional recommend

    Firms selling in several countries, paying suppliers or basing teams there and seeking multi-currency accounts with FX fees published.

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Every review in this category

How this category is scored

Four criteria track outcomes that matter to buyers in this category. Another four, the same in all categories, address the company and the commercial terms.

Accounts and payments
Buyer outcomes
International transfers, payment rails and account features.
Cards and spend controls
Buyer outcomes
Expense capture, approvals, limits and corporate cards.
Treasury and yield
Buyer outcomes
Idle cash choices, deposit protection and how clear the disclosure of both is.
Accounting integrations
Buyer outcomes
Sync to accounting systems and ERP.
Product depth and roadmap
Company and commercial
Coverage of the job by the product, and how active development is.
Onboarding and support
Company and commercial
Implementation aid, documentation and support channels offered by the company.
Pricing transparency
Company and commercial
How much pricing a buyer can view before any sales conversation.
Contract terms
Company and commercial
Exit terms, minimums and commitments, to the extent the company publishes them.