RankDude
Updated 10/15/2026 · next update 11/01/2026

AI Voice Agents Industry Report, September 2026

Miles FosterOwner and tester, RankDude

The market▼ Shrinking

Visits, year on year, without PolyAI
-15%
Visits, last six months
-42%
Name searches vs October 2025
-2.6%

Every key number on the AI voice agent market for September 2026, dated and sourced, so you can quote it. The 9 sites I measure got about 602,538 visits from Google, 24% fewer than a year ago, and the five most-visited sites took 97.4% of them.

Below: every figure in one table, the most-visited sites, who grew and who shrank and what I expect for October 2026.

Published 15 October 2026. Data from DataForSEO, Tranco and Ahrefs · free to quote with a link · not a ranking

AI voice agent industry report: the key numbers for September 2026

Four numbers for September 2026. Visits mean visits from Google search to the 9 tracked sites. Tap one for the detail below.

1Every figure in one table

Measure

  • Search visits a month, all tracked sites, worldwide
    Value
    602,538
    Period and basis
    September 2026; -23.9% year on year, -18.2% month on month
  • Search visits a month, United States
    Value
    141,000
    Period and basis
    September 2026; -32.7% year on year
  • US share of worldwide search visits
    Value
    23.4%
    Period and basis
    September 2026
  • Brand-name searches a month, US, all counted brands
    Value
    43,490
    Period and basis
    September 2026; -2.6% against October 2025
  • Brand-name searches a month, worldwide
    Value
    537,800
    Period and basis
    September 2026; -16.6% against October 2025
  • Searches a month for “ai voice agents”, US
    Value
    –
    Period and basis
    not published this month; see the note under the table
  • Searches a month for “ai voice agents”, worldwide
    Value
    –
    Period and basis
    not published this month; see the note under the table
  • Referring domains, all tracked sites
    Value
    28,820
    Period and basis
    September 2026; first reading, no year-on-year figure yet
  • Share of worldwide visits held by the five most-visited sites
    Value
    97.4%
    Period and basis
    September 2026
  • Tracked sites on Google's first page for “ai voice agents”, US
    Value
    1
    Period and basis
    September 2026; positions 1 to 10
  • Tracked sites ranking anywhere for “ai voice agents”, US
    Value
    2
    Period and basis
    September 2026; any position checked

Google Ads put US searches for "ai voice agents" more than five times higher in July 2026 than in the months before, while Google Trends interest in the US in July 2026 was 45 out of 100, against 85 in June 2026, so the term's search volume is held back on these pages until a later pull confirms it.

Brand-name searches leave out Cresta, PolyAI, Regal and Replicant: the name is shared with an ordinary word or another product.

2How many people visited

In plain words: These sites got fewer visits from Google than a year ago (-24%), and September 2026 was a weaker month than August 2026 (-18%). PolyAI, which takes 71.9% of all the visits, accounts for most of the fall (84% of it). Without it, visits would be down 15.0% on a year ago instead of down 23.9%. PolyAI made most of the move in September 2026: it lost 122,210 of the market's 133,926 visits; without it, visits to the other sites fell 6.5% on August 2026.

WorldVisits a month to AI voice agent sites, worldwide

0500K1.0M1.5M2.0MOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Sep 26603K
Low 104KHigh 1.2MAverage 673K
Hover, tap, or use the arrow keys to inspect a month

Source: DataForSEO, Google search visits, all tracked sites.

Miles explains

Judge this line on the year, not the last dot: visits are 24% below a year ago, and 48% below the April 2026 high. One site winning or losing a ranking can swing a single month a lot.

3How many people went looking

People typed a site’s name into Google 3% less often than in October 2025 (-3%). That is the loyalty number: nobody types a name by accident.

USSearches a month for the site names, United States

025.0K50.0K75.0K100KOct 25Dec 25Feb 26Apr 26Jun 26Sep 2643.5K
Low 39.8KHigh 55.8KAverage 45.6K
Hover, tap, or use the arrow keys to inspect a month

US searches a month for the counted brand names, summed. Google Ads data via DataForSEO, to September 2026.

Miles explains

Name searches are the number I trust most. They are about level, and nobody types a site’s name by accident, so this shows more people coming back on purpose.

4Where the visitors live

About 23 of every 100 visits come from the United States. Outside the US I measure 7 countries one by one; the largest is India.

USShare of visits that come from the US (%)

012.52537.550Oct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Sep 2623.4
Low 17.4High 35.9Average 25
Hover, tap, or use the arrow keys to inspect a month

US share of worldwide search visits, month by month.

Country

  • India
    Search visits a month
    60,731
    Share of the measured countries
    40.7%
  • Canada
    Search visits a month
    31,954
    Share of the measured countries
    21.4%
  • United Kingdom
    Search visits a month
    25,010
    Share of the measured countries
    16.8%
  • Brazil
    Search visits a month
    21,367
    Share of the measured countries
    14.3%
  • Australia
    Search visits a month
    3,896
    Share of the measured countries
    2.6%
  • France
    Search visits a month
    3,228
    Share of the measured countries
    2.2%
  • Germany
    Search visits a month
    2,928
    Share of the measured countries
    2%

Source: DataForSEO, September 2026.

Miles explains

The US is the biggest single market, but only about 23 in every 100 visits. India alone is 40.7% of the countries measured outside it.

5The most-visited sites

PolyAI gets the most visits, Retell AI is the name people search for most, and Retell AI holds Google’s first position for “ai voice agents”. The five most-visited sites take 97.4% of all visits.

By worldwide search visits

  • PolyAI
    Visits a month
    433,416
  • Retell AI
    Visits a month
    85,678
  • Vapi
    Visits a month
    50,671
  • Bland AI
    Visits a month
    9,027
  • Synthflow
    Visits a month
    7,898
  • Cresta
    Visits a month
    7,654
  • SquadStack
    Visits a month
    3,999
  • Replicant
    Visits a month
    2,648
  • Regal
    Visits a month
    1,547

By US brand-name searches

  • Retell AI
    Searches a month
    22,200
  • Vapi
    Searches a month
    12,100
  • Bland AI
    Searches a month
    8,100
  • Synthflow
    Searches a month
    1,000
  • SquadStack
    Searches a month
    90

Miles explains

The five most-visited sites take 97.4% of all visits. When one of them gains or loses a big ranking, the whole market total moves with it.

6Who grew and who shrank

The fastest grower in a year was Retell AI (+333%); the steepest fall was at Regal (-95%). Big swings are usually one site winning or losing one Google ranking.

Growing

  • Retell AI
    A year ago
    19,791
    Now
    85,678
    Change
    +333%
  • Cresta
    A year ago
    7,055
    Now
    7,654
    Change
    +9%

Declining

  • Regal
    A year ago
    27,943
    Now
    1,547
    Change
    -95%
  • SquadStack
    A year ago
    26,647
    Now
    3,999
    Change
    -85%
  • Bland AI
    A year ago
    16,434
    Now
    9,027
    Change
    -45%
  • Vapi
    A year ago
    90,969
    Now
    50,671
    Change
    -44%
  • PolyAI
    A year ago
    593,213
    Now
    433,416
    Change
    -27%
  • Synthflow
    A year ago
    8,490
    Now
    7,898
    Change
    -7%

Worldwide search visits, September 2026 against a year earlier; sites with at least 5,000 visits a year ago.

To cite this report: RankDude, “AI Voice Agents Industry Report, September 2026”, published 15 October 2026, https://rankdude.ai/ai-voice-agents/statistics/industry-report. Figures are estimates from the sources named beside them.