Twenty Twenty-One
Twenty Twenty-One is the default WordPress theme for 2021.
Get all 4,342 companies using Twenty Twenty-One
CSV with domain, country, industry, employees, funding, socials. Delivered by email.
Companies
4,342
Top Country
US
Top Industry
Consulting
Adoption Insights
Twenty Twenty-One is used by 4,342 companies in our database, representing approximately 0.15% of all tracked websites. The most common industry using Twenty Twenty-One is Consulting, and adoption is strongest in US.
Top Countries Using Twenty Twenty-One
Top Industries Using Twenty Twenty-One
Companies Using Twenty Twenty-One
| Company | Domain | Country | Industry | Employees |
|---|---|---|---|---|
 Reltio | reltio.com | US | Agentic AI | 251-500 |
 FineHeart | fineheart.fr | FR | Biotechnology | 11-50 |
 Deepwatch | deepwatch.com | US | Cloud Security | 101-250 |
 Jupiter Neurosciences | jupiterneurosciences.com | US | Biotechnology | 1-10 |
 GROUNDFLOOR | groundfloor.us | US | FinTech | 51-100 |
 Suma Wealth | sumawealth.com | US | Finance | 1-10 |
 Sapient | sapient.bio | US | Biotechnology | 51-100 |
 Vertical Compute | verticalcompute.com | BE | Computer | 11-50 |
 Friendship Village | friendshipvillagemi.com | US | Assisted Living | 251-500 |
 Current Health | currenthealth.com | US | Health Care | 101-250 |
Top Alternatives to Twenty Twenty-One
Other WordPress themes technologies sorted by adoption
How We Detect Twenty Twenty-One
The Web Radar detects Twenty Twenty-One 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 Twenty Twenty-One?+
Twenty Twenty-One is the default WordPress theme for 2021.
How many companies use Twenty Twenty-One?+
4,342 companies in our database use Twenty Twenty-One, representing approximately 0.15% of all tracked websites.
What industries use Twenty Twenty-One the most?+
The top industries using Twenty Twenty-One are Consulting, Health Care, Advertising.
What countries use Twenty Twenty-One the most?+
The top countries using Twenty Twenty-One are US, GB, AU.
Is Twenty Twenty-One popular?+
Twenty Twenty-One is used by 4,342 companies, making it one of the most widely adopted WordPress themes technology based on adoption across our tracked websites.
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Browse DatasetsData last updated: June 2026