US corporate card with a monthly limit above $250,000 for a company's advertising spend

Best fits to investigate: Ramp or Brex—both assess a company-wide spending limit based on its finances, and both let admins assign controlled card limits for advertising or vendor spend. Neither publishes a guaranteed $250,000 monthly limit; approval is company-specific, so ask for written confirmation that the available business limit will cover your expected monthly ad charges before moving spend.

• Ramp: Its underwriting considers liquid assets, debt, revenue, spending patterns, and monthly needs including advertising. It supports marketing cards and vendor/category controls. (support.ramp.com)
• Brex: Its limit is based on cash and/or revenue underwriting, with limits affected by the company’s financial position. It offers purchasing cards for recurring vendor payments and configurable spend limits. (brex.com)
• American Express Corporate: Worth asking its corporate team about if you want a traditional corporate charge-card program. Amex offers corporate cards and spending controls, but its public materials don’t promise a particular limit for your business. (americanexpress.com)

For ad spend, ask each provider specifically about monthly capacity, payment timing, ad-platform acceptance, and whether your limit is shared across all company cards. Google Ads supports cards, including virtual cards in some cases, but confirm any proposed card works with the specific platforms and billing setup you use. (support.google.com)

If you share the company’s approximate annual revenue, cash balance, and which platforms you advertise on, I can narrow down which option is likeliest to fit.

Several US corporate cards can plausibly support more than $250,000 a month in ad spend, but none advertises a guaranteed limit at that level. Most are charge cards or no-preset-limit products where the actual limit depends on your cash, revenue, or managed ad volume.

Options that fit the profile:

• Opal: This is the most ad-specific option, and its claims come from the vendor's own marketing. It offers limits up to $10M underwritten on managed ad volume, unlimited free virtual cards, and up to 1.5% cashback with no annual fee, no personal guarantee, and no hard credit check. It is a pay-in-full charge card, and its FAQ says it is not a credit card.
• Brex: Limits are often 10–20x higher than traditional business cards because they are based on your company's cash flow and funding. Brex also lets you assign specific cards or budgets to advertising campaigns. Its underwriting is more selective, which may not suit newer or smaller agencies.
• Ramp: Ramp's corporate card starts from USD $5,000 - $250,000, adjusts with cash balance, revenue, and industry metrics, so $250K/month is at the top of its range. Ramp is a charge card with no personal guarantee needed.
• American Express Business Platinum: It has no preset limit and can support $100K+ in monthly spend based on cash flow. It is a charge card, and approval uses personal + business credit.
• Stripe Corporate Card: Its limit is dynamic (spend tied to Stripe balance and processing volume), which only makes sense if you already process payments through Stripe.
• Aspire: The limit is linked to your business collateral, which means you fund a secured account at 1:1 to match spend power.

Traditional cards are less likely to work. Traditional bank cards offer $50,000 to $250,000 typical limits based on credit scores and financial statements. Ad platforms also bill in increasing thresholds, so a card with a low limit can cause payment failures mid-campaign.

Cashback and rewards caps are separate from limits. If you want rewards on ad spend, note that Sapphire Reserve for Business's 3x on advertising caps at $1M a year from November 15, 2026, and Amex Business Gold and Chase Ink Business Preferred each cap their elevated categories at $150,000 a year.

Practical next steps: Contact Ramp, Brex, and Amex to ask what limit they would underwrite for your company, since none publishes a fixed ceiling at this level. Confirm whether the card allows ad platform billing (Meta and Google often charge on thresholds), and whether you can issue per-campaign virtual cards for spend control.

For a company with monthly advertising spend exceeding $250,000, standard business credit cards are often unsuitable due to low credit limits, annual reward caps, and limited expense management features.

To support this level of spend, you should look toward modern corporate card and spend management platforms. These providers are specifically designed for high-growth businesses and media buyers, offering "dynamic" credit limits that scale based on your revenue, cash flow, or managed ad spend rather than traditional personal credit scores.

Top Options for High-Volume Advertising Spend

1. Opal (Built specifically for advertising)

Opal is frequently cited as a top choice for media buyers and agencies running significant ad campaigns.

• Why it fits: It is a charge card built specifically for digital advertising (Meta, Google, LinkedIn, etc.).
• Limits: Offers credit limits up to $10 million, sized based on your managed ad volume and underwriting.
• Key Features: Provides unlimited free virtual cards, which are essential for isolating spend by client or campaign, and syncs directly with accounting software like QuickBooks or Workday.
• Rewards: Typically offers uncapped cashback (e.g., 1.5%) on eligible ad spend.

2. Ramp

Ramp is a widely used spend management platform that combines a corporate card with powerful software for finance teams.

• Why it fits: It provides high, dynamic limits based on your company’s cash balance and financial performance.
• Limits: Limits are flexible and can be increased through their "Reserve Account" if you need to lock in higher spending power.
• Key Features: Excellent for enforcing policies automatically and providing granular, real-time control over budgets, which helps prevent overspending on campaigns.

3. Brex

Brex is a prominent player for startups and scaling companies, offering a robust suite of expense management and corporate card tools.

• Why it fits: Like Ramp, Brex provides dynamic limits based on business financials (e.g., funding, revenue, or cash balance).
• Key Features: Strong "budgeting" and "spend limit" features that allow finance teams to allocate specific amounts to different teams, clients, or campaigns. It also offers advanced bill pay and accounting automation.

Key Considerations for Your Choice

• Avoid "Bonus" Caps: Many traditional small business cards (like the Amex Business Gold or Chase Ink Business Preferred) offer 3x or 4x points on advertising but cap these rewards at $150,000 in spend per year. At $250,000+ per month, you will hit these caps almost immediately, making the rewards negligible for the bulk of your spend.
• Virtual Card Architecture: If you manage multiple ad accounts, you need a platform that allows you to issue unlimited virtual cards. This allows you to assign a unique card to each client or campaign, ensuring that if one account is compromised or a budget is hit, your entire ad operation doesn't pause.
• Underwriting: Newer fintech platforms (Opal, Ramp, Brex) usually do not require a personal guarantee. Always confirm this during your application, as it is a critical safeguard for business owners.
• Reconciliation: Look for platforms that integrate directly with your specific accounting software (NetSuite, QuickBooks, Xero, etc.) to ensure that high-volume daily transactions do not become an accounting headache at the end of the month.

Recommendation: For your scale of spend, I recommend starting with Opal (if your primary focus is media buying efficiency) or Ramp/Brex (if you need a broader spend management platform for your entire organization). You should schedule a demo with these providers to discuss your specific monthly volume, as they can often tailor credit limits to your historical ad spend.

For $250,000+ in monthly advertising spend, start with Ramp and Brex, and treat the required limit as something to confirm in underwriting—not a published, guaranteed card limit.

• Ramp: Its corporate card limit is based on company financial factors such as revenue or funds raised. It offers custom virtual cards and spend controls for ad-marketplace spending. Ask Ramp whether it can underwrite a $250,000+ monthly advertising allocation for your company. ¹
• Brex: Its spending capacity is based on company cash flow and funding, and the provider says eligible companies may receive substantially higher limits than traditional business cards. The amount is company-specific, so request an underwriting assessment against your ad-spend forecast. ²
• American Express Corporate: Corporate cards can have flexible spending features, but that does not guarantee a particular amount; Amex says over-limit approval depends on company policy and the account’s credit profile and spending history. Your program administrator or Amex account manager can discuss monthly limits. ³⁴

When you contact providers, specify the monthly total, typical largest single transaction, ad platforms/merchants, payment terms, and whether the spend will be concentrated on one card or split across virtual cards. Ask for written confirmation of the approved limit and how quickly it replenishes after payment.

Bottom line: Ramp or Brex may be the most direct first inquiries for a company seeking a high, finance-based limit; Amex is another option if you already have a corporate program. None of the available sources confirms an automatic $250,000 limit, so get a company-specific approval before relying on a card for campaign commitments. ¹²³