Brandwave

How popular isTenable?

In September 2026, people searched for Tenable by name about 64,800 times worldwide, a 28.4% decrease from the previous year. These searches made up 0.86% of all global cybersecurity vendor searches, placing Tenable eighth out of 12 vendors. When we asked both ChatGPT and Google AI Overviews about cybersecurity vendors, Tenable appeared in two of the five answers and was the tenth most recommended of the 12.

Search and AI answers in September 2026

Tenable is the eighth most searched of 12 competitors and the tenth most recommended in AI answers.

  1. CloudflareShare of searches 70.9%Mentioned in 2 of 5 AI answersPlace in AI recommendations 7th
  2. OktaShare of searches 11.7%Mentioned in 2 of 5 AI answersPlace in AI recommendations 11th
  3. FortinetShare of searches 5.2%Mentioned in 2 of 5 AI answersPlace in AI recommendations 4th
  4. ZscalerShare of searches 3.5%Mentioned in 2 of 5 AI answersPlace in AI recommendations 6th
  5. TenableShare of searches 0.86%Mentioned in 2 of 5 AI answersPlace in AI recommendations 10th

+7 more

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Top cybersecurity vendors in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Tenable was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Tenable is the tenth most recommended of the 12.

Most recommended by AI

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

  1. CrowdStrike1st
  2. Palo Alto Networks2nd
  3. Sophos3rd
  4. Fortinet4th
  5. SentinelOne5th
  6. Zscaler6th
  7. Cloudflare7th
  8. Check Point8th
  9. CyberArk9th
  10. Tenable10th
  11. +2 more

Mentioned by AI

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

  • CrowdStrike4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Sophos3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Palo Alto Networks3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • SentinelOne3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Cloudflare2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Okta2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Fortinet2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Zscaler2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • CyberArk2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Tenable2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers

+2 more

See every answer about cybersecurity vendors

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 20, 2026.

Which cybersecurity vendors compete with Tenable?

Tenable against cybersecurity vendors worldwide, by month

Share of searches by month for Cloudflare, Okta, Fortinet, Zscaler, Sophos, Palo Alto Networks, Tenable. The figures are in the table below the chart.

View monthly share of searches table
MonthCloudflareOktaFortinetZscalerSophosPalo Alto NetworksCyberArkTenableDarktraceCheck PointCrowdStrikeSentinelOne
Oct 202554.8%16.5%9%6%6%2.2%2.2%1.8%1.2%0.33%0.04%<0.01%
Nov 202583.9%6.2%3.4%1.8%1.9%0.83%0.83%0.68%0.37%0.11%0.01%<0.01%
Dec 202571.9%11.8%5.3%2.9%3.3%1.6%1.3%1.1%0.58%0.21%0.02%<0.01%
Jan 202660.8%14.9%8.2%4.5%4.5%2.4%2%1.3%0.9%0.36%0.04%<0.01%
Feb 202661.5%15.1%6.8%4.5%4.5%2.5%2.5%1.4%0.91%0.33%0.04%<0.01%
Mar 202664.5%15.8%5.8%3.9%3.9%2.1%1.7%1.2%0.78%0.31%0.03%<0.01%
Apr 202666.7%13.4%6%4%4%2.2%1.5%1.2%0.81%0.29%0.03%<0.01%
May 202665.4%13.1%7.2%4.8%3.8%2.1%1.4%1.2%0.65%0.26%0.03%<0.01%
Jun 202665%13.1%8.7%3.9%3.9%2.1%1.4%0.96%0.64%0.29%0.02%<0.01%
Jul 202666.9%13.4%6%4%4%2.2%1.5%0.99%0.66%0.26%0.02%<0.01%
Aug 202671%11.7%5.2%3.5%3.3%2.3%1.3%0.86%0.57%0.23%0.02%<0.01%
Sep 202670.9%11.7%5.2%3.5%3.5%2.3%1.3%0.86%0.57%0.25%0.02%<0.01%

  1. 1.Cloudflare

    70.9%

    Held 1st. 4.1M estimated branded searches, 0% vs prior month. Share -0.1 points.

  2. 2.Okta

    11.7%

    Held 2nd. 673K estimated branded searches, 0% vs prior month. Share 0 points.

  3. 3.Fortinet

    5.2%

    Held 3rd. 301K estimated branded searches, 0% vs prior month. Share 0 points.

  4. 4.Zscaler

    3.5%

    Held 4th. 201K estimated branded searches, 0% vs prior month. Share 0 points.

  5. 5.Sophos

    3.5%

    Held 5th. 199K estimated branded searches, +4.7% vs prior month. Share +0.1 points.

  6. 6.Palo Alto Networks

    2.3%

    Held 6th. 135K estimated branded searches, 0% vs prior month. Share 0 points.

  7. 7.CyberArk

    1.3%

    Held 7th. 74K estimated branded searches, 0% vs prior month. Share 0 points.

  8. 8.Tenable

    0.86%

    Held 8th. 49.5K estimated branded searches, 0% vs prior month. Share 0 points.

  9. 9.Darktrace

    0.57%

    Held 9th. 33.1K estimated branded searches, 0% vs prior month. Share 0 points.

  10. 10.Check Point

    0.25%

    Held 10th. 14.7K estimated branded searches, +11.4% vs prior month. Share 0 points.

  11. 11.CrowdStrike

    0.02%

    Held 11th. 1.3K estimated branded searches, +30% vs prior month. Share 0 points.

  12. 12.SentinelOne

    <0.01%

    Held 12th. 70 estimated branded searches, 0% vs prior month. Share 0 points.

Compare popularity between Tenable and its closest rivals

Every comparison with Tenable

30 comparisons

How has branded search demand for Tenable changed worldwide over the last 12 months?

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Tenable worldwide fell from 90.5K to 64.8K.
  • Across the 12 months ending September 2026, Tenable’s share of searches among cybersecurity vendors worldwide decreased from 1.8% to 0.86%.
  • Across the 12 months ending September 2026, Tenable’s share of searches among cybersecurity vendors worldwide peaked at 1.8% in October 2025 and was lowest at 0.68% in November 2025.

How did search popularity change for cybersecurity vendors worldwide in September 2026?

6 changes

  1. Fortinet’s share of searches among cybersecurity vendors worldwide has lost ground for 3 months in a row, from 8.7% to 5.2% in September 2026.

  2. Estimated monthly branded searches for Cloudflare worldwide rose 82.6% over 12 measured months, from 2.2M to 4.1M in September 2026.

  3. Estimated monthly branded searches for Palo Alto Networks worldwide rose 49.2% over 12 measured months, from 90.5K to 135K in September 2026.

  4. Estimated monthly branded searches for SentinelOne worldwide fell 36.4% over 12 measured months, from 110 to 70 in September 2026.

  5. Estimated monthly branded searches for Darktrace worldwide fell 33.1% over 12 measured months, from 49.5K to 33.1K in September 2026.

  6. Estimated monthly branded searches for Tenable worldwide fell 33.1% over 12 measured months, from 74K to 49.5K in September 2026.

How are Tenable’s branded searches counted?

5 search terms

Brandwave collects information about searches that people make online using Tenable’s name. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • nessus
  • tenable nessus
  • tenable vulnerability management
  • tenable vulnerability scanner
  • vulnerability scanner tenable

Do you work for Tenable? To request corrections or removal please contact us via our support page and we will be happy to assist.

How the Brand Demand Index is measured

Where does Tenable compete?

Tenable is ranked in four competitor sets. Each share is worked out among that set's brands, so it differs from set to set.
Competitor setRankShare of searchesRanking
Cybersecurity vendors8th of 120.86%Shown above
Penetration testing platforms5th of 114.9%Show ranking
Vulnerability scanning tools3rd of 912.8%Show ranking
Vulnerability management platforms1st of 830.1%Show ranking
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