US company card where each card has its own limit and can be frozen instantly from an app

Ramp is a strong match: you can set spending limits for individual cards and freeze a card instantly from its dashboard. It offers virtual and physical company cards. (ramp.com)

If you meant a traditional bank-issued credit card, Chase also advertises employee-card spending limits managed online or in its mobile app. (chase.com)

For a US company where each card has its own limit and can be frozen from an app, these are the strongest fits based on current reviews:

• Ramp is the closest match. Each card can carry its own limits, and a finance team can freeze or cancel it instantly. Rho, for example, lets a company issue virtual cards to any employee alongside physical ones, with per-card merchant restrictions and spend limits, and a finance team can freeze or cancel a card instantly. Ramp is the one I'd check first. Additional employee cards and virtual cards are $0, and its controls are strict: an employee attempting to exceed their limit sees the transaction declined instantly at the point of sale. Its eligibility is based on cash in your bank account, with one source citing typically 50-75% of your balance as the basis for limits, and a minimum of $25,000 in bank balance.

• BILL Spend & Expense (formerly Divvy) is the best fit if you want hard budget caps. Its cards are tied to budgets: freeze cards, adjust limits, and request funds instantly via the mobile app. Choose BILL if you need hard-stop limits on every card. Its cash requirement is lower, around $20k+, and it works for businesses that want a revolving line.

• Brex offers per-card limits, but its controls are more flexible than hard stops. Brex sets policy thresholds that trigger alerts and can decline transactions. It also has a higher bar: Brex's eligibility criteria focus on venture-backed startups, enterprise companies and businesses with annual revenue in the millions.

• Rho is a good alternative if you want per-card controls without a per-card fee. No per-card fee is listed among its features, and its vendor cards can be set up as single-use, monthly, or fixed-limit when created.

Two other options come up in reviews, though I'd treat them as secondary for a US company. Payhawk lists instant freeze among its features, and Stripe Corporate Card offers real-time spend tracking within Stripe dashboard, but it's tied to Stripe payment volume.

My suggestion: if you're well-funded, start with Ramp. If your cash balance is lower, look at BILL. If you want the most flexible approval rules and you qualify, consider Brex. Check current eligibility and fees directly with each provider, since these terms change often.

Several modern corporate card platforms in the U.S. offer the functionality you are looking for. These services are typically designed as "spend management" platforms that provide both the credit card and the software interface to control them.

Recommended Corporate Card Platforms

The following platforms are widely recognized for their ability to issue cards with individual limits and allow for instant freezing via an app or web dashboard:

• Ramp: Known for strong automation and spend controls. You can set individual, per-transaction, and periodic spend limits, and admins can instantly lock or unlock cards and funds directly from the platform.
• Brex: A popular choice for startups and growing businesses. It allows you to issue cards with custom "Spend Limits" assigned to individuals or teams. These limits can be adjusted, and cards can be managed/frozen via their app.
• BILL Spend & Expense (formerly Divvy): Specifically built for expense management, this platform allows admins to set granular budgets and limits for every cardholder. Cards can be frozen instantly from both the mobile app and web browser.
• Rho: Offers corporate cards with similar robust spend management features, including the ability to set limits and control cards centrally.

Key Features of These Platforms

When choosing between these options, look for these standard capabilities that meet your requirements:

• Individual Card Limits: You can set a specific dollar amount (e.g., a monthly budget or a per-transaction limit) for each employee card.
• Instant Freeze/Lock: If a card is lost, misused, or an employee leaves, you can deactivate the card instantly through your administrative dashboard.
• Virtual Cards: Most of these platforms allow you to generate virtual cards instantly. These are ideal for online subscriptions or one-off purchases, as they can be "locked" to a specific vendor, meaning they won't work if stolen or used elsewhere.
• Expense Tracking: Since these cards are linked to software, transactions are typically tracked in real-time, often with automated receipt collection and accounting software integrations (e.g., QuickBooks, NetSuite, Xero).

Considerations Before You Apply

• Liability: Many of these modern platforms are "corporate liability" cards, meaning the business is responsible for the balance rather than the individual, and many do not require a personal guarantee.
• Underwriting: Unlike traditional banks that rely on personal credit scores, these fintech platforms usually underwrite based on your business’s cash flow, bank account balance, or funding history.
• Fees: Many of these platforms offer their core card and software services for free, making money instead through interchange fees (paid by merchants), though some have premium tiers with advanced features.

Ramp looks like a strong match: it offers individual card spending limits, and its mobile app lets users lock and unlock physical cards. ¹¹⁰

Brex is another option with employee card limits and virtual cards tied to specific spend limits. ¹¹¹³ The sources I found confirm its limit controls, but don’t confirm app-based instant freezing, so verify that feature with Brex before choosing.