As of October 28, 2026, Sumo is used by 12,570 websites in the TechLeads index: 0.27% of all Marketing automation detections, the 35th most-used of 545 Marketing automation technologies.
12,570
websites using Sumo
0.27%
share of Marketing automation
#35
of 545 in Marketing automation
Sumo vs competitors in Marketing automation
Websites using each technology in the TechLeads index, and its share of all Marketing automation detections.
Rows link to each competitor's market share page where one exists. The table lists the 21 most-used technologies; ranks are by website count.
Sumo usage over time
In HTTP Archive's monthly crawl of public websites, Sumo was detected on 21,540 pages in September 2026, down 30.8% from a year earlier (peak: 73,874). HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.
Same month, other Marketing Automation technologies in HTTP Archive: HubSpot 1,314,777, Klaviyo 762,495, Pardot 318,723, Salesforce Marketing Cloud Account Engagement 308,609, MailChimp for WordPress 274,006.
Sumo customers by country
Based on country-code domains (such as .de or .co.uk); websites on .com and other generic domains are not assigned a country.
US314
GB36
FR24
AU15
DE10
CA6
CO3
NL3
NO3
ES3
Companies using Sumo
99percentinvisible.org · 99% Invisible
learncbse.in · LearnCBSE
theleanstartup.com
moosend.com · Moosend
thedyrt.com
twloha.com · To Write Love On Her Arms
pulitzercenter.org
gamedevmarket.net
queenslibrary.org
innocenceproject.org
openconnectivity.org
uaw.org · UAW | United Automobile, Aerospace and Agricultural Implement Workers of America
TechLeads scans public websites and detects Sumo from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is Sumo's website count divided by the website counts of all Marketing automation technologies we track; a site using two Marketing automation tools counts for both. Counts were last refreshed on October 28, 2026 and update daily.
FAQ
Q01What is Sumo's market share?
Sumo accounts for 0.27% of Marketing automation detections in the TechLeads index (12,570 websites), which makes it the 35th most-used of 545 Marketing automation technologies we track.
Q02How many companies use Sumo?
TechLeads currently detects Sumo on 12,570 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 21,540 pages in September 2026.
Q03Who are Sumo's biggest competitors?
By number of websites, the largest Marketing automation technologies besides Sumo are MailChimp (842,063), HubSpot (759,363), Klaviyo (407,299), Social Miner (236,410), MailChimp for WordPress (233,621).
Q04Which companies use Sumo?
Websites using Sumo include 99percentinvisible.org, learncbse.in, theleanstartup.com, moosend.com, thedyrt.com, twloha.com. The full list of 12,570 websites can be exported as a CSV for $29.
