Brandwave

BILL Spend & Expense vs Brex:Which is more popular?

In September 2026, Brex had more branded searches than BILL Spend & Expense among spend management platforms worldwide. Brex had about 91,800 branded searches, while BILL Spend & Expense had 390. Brex made up 8.5% of all spend management platform searches we track, and BILL Spend & Expense accounted for 0.04%. When we asked ChatGPT and Google AI Overviews about spend management platforms, Brex appeared in all five answers and BILL Spend & Expense in three. Brex was mentioned before BILL Spend & Expense in every answer.

Among spend management platforms worldwide in September 2026

Who do people search for more?

Brex, about 235 searches for every 1 for BILL Spend & Expense

Brex 91.8K searchesBILL Spend & Expense 390 searches

Who does AI mention more?

Brex, mentioned in every answer we collected

Brex in 5 of 5BILL Spend & Expense in 3 of 5

Who does AI recommend more?

Brex, named ahead of BILL Spend & Expense in every answer

Brex first in 5BILL Spend & Expense never first

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Top spend management platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Brex appeared in all five answers. BILL Spend & Expense was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Brex was listed before BILL Spend & Expense in every answer.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Ramp1st
  2. Brex2nd
  3. BILL Spend & Expense3rd
  4. SAP Concur4th
  5. Airbase5th
  6. Coupa6th
  7. Rippling Spend7th
  8. Expensify8th
  9. Navan9th
  10. Mesh Payments–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Brex5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Ramp5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Airbase4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • SAP Concur3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • BILL Spend & Expense3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Coupa2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Expensify2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Rippling Spend2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Navan1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Mesh Payments0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about spend management platforms

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.

Is BILL Spend & Expense or Brex more popular in search?

This chart shows how often people search Google for BILL Spend & Expense and Brex by name. Each line represents a brand's share of searches for all ten spend management platforms we track, month by month, from English-language searches worldwide.

BILL Spend & Expense and Brex among spend management platforms worldwide, by month

Share of searches by month for Brex, BILL Spend & Expense. The figures are in the table below the chart.

View monthly share of searches table
MonthNavanSAP ConcurCoupaExpensifyBrexAirbaseRampMesh PaymentsBILL Spend & ExpenseRippling Spend
Oct 202534.6%22.5%18%12.2%8.5%3.6%0.29%0.21%0.03%0.05%
Nov 202529.5%23.4%18.8%12.7%10.4%4.6%0.31%0.27%0.03%0.05%
Dec 202524.8%23.9%19.3%16%10.7%4.7%0.31%0.22%0.03%0.06%
Jan 202628.1%18.2%14.6%12.2%22%4.4%0.25%0.21%0.03%0.05%
Feb 202628.2%22.3%17.9%12.3%12.1%6.6%0.37%0.26%0.04%0.06%
Mar 202628.5%22.4%17.9%12.4%10%8.1%0.37%0.21%0.03%0.04%
Apr 202630.4%23.8%19.1%10.7%10.6%4.7%0.32%0.23%0.04%0.05%
May 202634%21.9%17.6%11.8%9.8%4.3%0.35%0.26%0.03%0.05%
Jun 202631.3%24.6%19.7%10.8%9%4%0.32%0.24%0.05%0.03%
Jul 202633.8%21.9%17.7%11.8%9.9%4.3%0.29%0.26%0.04%0.03%
Aug 202638.2%20.4%16.5%11%9.1%4%0.33%0.24%0.05%0.03%
Sep 202635.5%23%18.5%10.1%8.5%3.7%0.3%0.22%0.04%0.02%

How has the BILL Spend & Expense and Brex comparison changed over the last 12 months?

3 findings

How did search popularity change for spend management platforms worldwide in September 2026?

1 change

  1. In September 2026, Brex lost share of searches among spend management platforms worldwide, from 9.1% to 8.5%.

How are branded searches counted?

3 search terms

Brandwave collects information about searches that people make online using BILL Spend & Expense’s 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.

BILL Spend & Expense

1 branded search term

  • bill spend & expense

Brex

2 branded search terms

  • brex
  • brex corporate card

How the Brand Demand Index is measured

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