American Express vs Brex:Which is more popular in the United States?
In October 2026, Brex had more branded searches than American Express among business credit cards in the United States. Brex had about 49,500 branded searches, while American Express had 30,200. Brex made up 34.6% of all business credit card searches we track, and American Express accounted for 21.1%. When we asked ChatGPT and Google AI Overviews about business credit cards, American Express appeared in four of the five answers and Brex in none.
Who do people search for more?
Brex, about 64% more searches than American Express
Who does AI mention more?
American Express, mentioned in 4 of 5 answers, Brex in 0
Who does AI recommend more?
American Express, the only one of the two named
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Top business credit cards in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, American Express was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Brex did not appear in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- American Express4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Chase4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Capital One4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers- Brex0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Ramp0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Bank of America0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
U.S. Bank0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
BILL Spend & Expense0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about business credit cards
5 answers
Asked ChatGPT
“What's the best business credit card for a small business?”
Asked ChatGPT
“Which business credit card has the best rewards?”
Asked ChatGPT
“Should I get a corporate card or a business credit card for my startup?”
Searched Google, AI Overview
“best business credit cards”
Searched Google, AI Overview
“business credit card”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in United States on October 27, 2026.
Is American Express or Brex more popular in search?
This chart shows how often people search Google for American Express and Brex by name. Each line represents a brand's share of searches for all eight business credit card brands we track, month by month, from searches in United States.
Share of searches by month for Brex, American Express. The figures are in the table below the chart.
View monthly share of searches table
| Month | Brex | American Express | Chase | Capital One | Ramp | Bank of America | U.S. Bank | BILL Spend & Expense |
|---|---|---|---|---|---|---|---|---|
| Nov 2025 | 26.7% | 31.6% | 22.6% | 5.3% | 5.3% | 3.6% | 2.4% | 2.5% |
| Dec 2025 | 32.4% | 29.5% | 18.3% | 5.3% | 5.3% | 3.5% | 2.9% | 2.8% |
| Jan 2026 | 55.6% | 17.3% | 14.1% | 3.3% | 4.1% | 2.2% | 1.8% | 1.6% |
| Feb 2026 | 39.6% | 22.4% | 18.3% | 4.3% | 6.5% | 3.5% | 2.9% | 2.5% |
| Mar 2026 | 37% | 25.6% | 17.1% | 4.9% | 6% | 4% | 2.7% | 2.6% |
| Apr 2026 | 37.3% | 22.8% | 17.3% | 5% | 7.5% | 4.1% | 3.3% | 2.7% |
| May 2026 | 35.9% | 21.9% | 20.3% | 4.8% | 7.2% | 3.9% | 3.2% | 2.8% |
| Jun 2026 | 36.9% | 20% | 20.9% | 4.9% | 7.4% | 4% | 2.7% | 3.2% |
| Jul 2026 | 37.7% | 18.8% | 21.3% | 5% | 7.5% | 4.1% | 2.7% | 2.7% |
| Aug 2026 | 36.7% | 20% | 20.8% | 4.9% | 7.3% | 4% | 3.3% | 3% |
| Sep 2026 | 35.2% | 19.1% | 19.9% | 7% | 8.6% | 3.8% | 3.1% | 3.1% |
| Oct 2026 | 34.6% | 21.1% | 16% | 8.5% | 8.5% | 4.6% | 3.8% | 3% |
American Express sells other things too, so only its searches that name this product count here, like “amex business gold”.
How has branded search for American Express and Brex changed in the United States over the last 12 months?
3 findings
- The lead changed hands once in the 12 months ending October 2026: Brex took it in December 2025.
- Across the 12 months ending October 2026, American Express’ share of searches among business credit cards in the United States moved from 31.6% to 21.1%, and its estimated monthly branded searches moved from 47.9K to 30.2K.
- Across the 12 months ending October 2026, Brex’s share of searches among business credit cards in the United States moved from 26.7% to 34.6%, and its estimated monthly branded searches moved from 40.5K to 49.5K.
How did search popularity change for United States business credit cards in October 2026?
2 changes
In October 2026, American Express overtook Chase to rank 2nd among business credit cards in the United States, with 21.1% of the searches.
In October 2026, Brex lost share of searches among business credit cards in the United States, from 35.2% to 34.6%.
How are American Express’ and Brex’s branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using American Express’ and Brex’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
American Express
2 branded search terms
- amex business gold
- amex business platinum
Brex
1 branded search term
- brex
Other head-to-heads among business credit cards
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