Marker.io is an issue tracker solution for Project Managers, QA Testers and Agency Clients to report feedback & bugs to developers.
Get all 1,427 companies using Marker
CSV with domain, country, industry, employees, funding, socials. Delivered by email.
Companies
1,427
Top Country
US
Top Industry
Health Care
Adoption Insights
Marker is used by 1,427 companies in our database, representing approximately 0.05% of all tracked websites. The most common industry using Marker is Health Care, and adoption is strongest in US.
Top Countries Using Marker
Top Industries Using Marker
Companies Using Marker
| Company | Domain | Country | Industry | Employees |
|---|---|---|---|---|
 Talkiatry | talkiatry.com | US | Health Care | 501-1000 |
 Ellipsis Health | ellipsishealth.com | US | Artificial Intelligence (AI) | 51-100 |
 Bridge | bridge.xyz | US | Cryptocurrency | 11-50 |
 PayJoy | payjoy.com | US | Credit | 1001-5000 |
 Hatch | usehatchapp.com | US | Marketing Automation | 11-50 |
 LifeMD | lifemd.com | US | Health Care | 251-500 |
 Fluency | fluency.inc | US | Advertising | 101-250 |
 SeeQC | seeqc.com | US | Electronics | 11-50 |
 Little Otter | littleotterhealth.com | US | Apps | 11-50 |
 Salvo Health | salvohealth.com | US | Health Care | 51-100 |
Top Alternatives to Marker
Other Issue trackers technologies sorted by adoption
How We Detect Marker
The Web Radar detects Marker by analyzing HTTP headers, JavaScript variables, HTML source code, cookies, and DNS records across 3M+ websites. Our detection engine uses over 10,000+ pattern rules to ensure accurate identification. Browse all technologies →
Frequently Asked Questions
What is Marker?+
Marker.io is an issue tracker solution for Project Managers, QA Testers and Agency Clients to report feedback & bugs to developers.
How many companies use Marker?+
1,427 companies in our database use Marker, representing approximately 0.05% of all tracked websites.
What industries use Marker the most?+
The top industries using Marker are Health Care, Advertising, Consulting.
What countries use Marker the most?+
The top countries using Marker are US, GB, CA.
Is Marker popular?+
Marker is used by 1,427 companies, making it one of the most widely adopted Issue trackers technology based on adoption across our tracked websites.
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Browse DatasetsData last updated: July 2026