The Fintech Index
183 companies rated 5 sectors 38 reports Last updated Nov 13, 2026
BNK / Business banking & treasury

Mercury

Mercury is a San Francisco fintech that gives startups and small businesses checking and savings accounts, cards, bill pay, invoicing, and treasury through partner banks.

Established
2017
Company type
Private company
Official site
mercury.com
Funding
~$200M Series D in May 2026 at a $5.2B valuation, led by TCV with a16z, Coatue, CRV, Sapphire, Sequoia, and Spark

Assessment

Mercury is used by US startups, ecommerce sellers, agencies, and other small businesses that run their finances online. It serves more than 300,000 customers, and its best use cases are business checking and savings, company cards, bill pay, invoicing, and treasury for cash it does not need right away. Its core account costs $0 a month, with Plus at $29.90 and Pro at $299, which makes it one of the cheaper options, and its main competitors are Brex, Ramp, Rho, and Relay.

Immad Akhund, Jason Zhang, and Max Tagher founded Mercury in 2017. It is a fintech, not a bank, and its deposits are held at Choice Financial Group and Column N.A. It reported $650M of annualized revenue in the third quarter of 2025 and four years of GAAP profit, and its customers moved $248B through it in 2025, up 59%.

It fits a business that wants a clean online account with strong software and no monthly fee. It is a weaker fit for a company that needs cash deposits or branches, and for a firm outside the US, since accounts are for US-registered businesses.

Rating by criterion

We score each of the eight criteria out of 100.

Sector criteria

Accounts and money movement88

Open it for everyday US business banking. Checking, savings, ACH, wires, and treasury are in the free plan, and customers moved $248B through Mercury in 2025.

Spend and cards84

Issue debit and credit cards to your team from the same account. Spend controls and expense management come with every account.

Bookkeeping and admin tools84

Add bill pay, invoicing, and accounting sync without another tool. Mercury Books costs $35 a month and payroll $100 plus $50 per person, both waived until December 31, 2026.

Integrations and open banking82

Connect it to your stack. Mercury syncs with Xero, QuickBooks, and NetSuite on paid plans and offers an API for custom workflows.

Vendor criteria

Product depth and roadmap86

Expect a broad and fast-moving product. Mercury has added accounting, payroll, working capital loans, and venture debt to its accounts.

Onboarding and support84

Sign up online in minutes. Customers give it a net promoter score of 73.8, and Plus adds priority support.

Pricing transparency86

Read the plan page before you upgrade. Mercury costs $0, Plus $29.90, and Pro $299 a month, with 15% off on annual billing.

Contract terms78

Note the partner-bank model. Mercury is not itself a bank, and FDIC cover applies through its partner banks.

Against its peers

These are the other companies in business banking and treasury, with their ratings.

User comments

We read Mercury’s 2025 annual letter and its pricing page to see what buyers value, and set them against the main limit a buyer meets.

  • Upside

    “Founders praise the clean software and the $0 core plan, which bundles accounts, cards, bill pay, and invoicing.”

  • Downside

    “Businesses that handle cash or need a branch have to keep a second bank, since Mercury is online only and works through partner banks.”

Where customer reviews couldn't be found, our analysts attempted to give a voice to buyer sentiment, drawing on real information from review sites, forums and product documentation.

Based on: Mercury, 2025 annual letter; Mercury, pricing.

Fact file

Legal entityMercury Technologies, Inc.
Chief executiveImmad Akhund, co-founder
Annualized revenue$650M in Q3 2025
CustomersMore than 300,000
2025 transaction volume$248B, up 59%
Partner banksChoice Financial Group and Column N.A.

Competitive landscape

Online business banking and spend platforms a US startup would compare with Mercury.

Reviewed scores out of 100
0 25 50 75 100 Mercury 84 Revolut 84 BILL 84 Rho 80 Relay 80 Juni 78 Novo 77 Brex Not reviewed Ramp Not reviewed

Mercury: 84

Novo offers free small business checking with invoicing, payment acceptance, and links to QuickBooks, Stripe, and Shopify, and fits freelancers and small firms more than venture-backed startups.

Comparisons

Key leadership

Immad Akhund co-founded Mercury in 2017 and is its chief executive. He earlier co-founded the mobile ad company Heyzap, which Fyber bought.

How this review was created

This profile gives our own assessment of Mercury to companies selecting a Business banking & treasury provider. The Fintech Index receives nothing for featuring a firm, for sponsorship, or for advertising, and Mercury gave us no payment for the profile.

The rating equals the average of eight criteria, with every criterion running from 0 to 100. Four address buyer needs in this sector, and four address the company together with its commercial terms.

Ratings are our editorial judgment, made from public information: pricing and legal pages, product documentation, compliance disclosures, public reviews and filings. Fact-checking took place on November 3, 2026.

Source pages
  1. Mercury home page: https://mercury.com/ (As of November 3, 2026)
  2. Mercury, about: https://mercury.com/about (As of November 3, 2026)
  3. Mercury, pricing: https://mercury.com/pricing (As of November 3, 2026)
  4. Mercury, Series D announcement: https://mercury.com/blog/series-d-announcement (As of November 3, 2026)
  5. Mercury, 2025 annual letter: https://mercury.com/blog/annual-letter-2025 (As of November 3, 2026)