Companies Using Joomla

As CMO at TechnologyChecker.io, I've analyzed the Joomla ecosystem across 223,100 active domains matched to 163,186 company profiles (a 73.1% match rate). Joomla tells a unique story in the CMS market: a two-decade-old platform in genuine long-term decline, whose institutional core, health ministries, statistics agencies, universities, telecoms, shows no sign of leaving. Here's what our data reveals.

1. Growth Trajectory: Two Decades of Rise, Then Retreat

Joomla's detection history stretches back to September 2005, when we first tracked 4 active domains. Active domains peaked at 129,989 in January 2018 and total-ever detections peaked the same month at 521,285; both then declined for seven straight years, reaching 88,267 by July 2025. That decline is real and is the defining fact about Joomla.

Today we detect 223,100 active domains. Do not read that as a recovery. The crawled domain set turns over every month, and we now check six separate Joomla signals where earlier coverage was thinner, so both effects lift the count without a single new site adopting Joomla. Within our recent, consistent stretch the platform is flat: 207,481 in June 2026, 223,318 in July, 223,100 in August. Flat, after a seven-year slide, is the honest summary.

Sales Signal: The steady outflow creates a continuous pool of organisations in transition. Since March 2026 alone, 3,809 domains have left Joomla for another platform in this category while only 698 arrived. Those leavers are actively evaluating a new stack and open to complementary tooling.

2. Customer Profile: Institutional, European, Micro-Business

Three characteristics define the typical Joomla customer. First, 71.12% have 10 or fewer employees and 90.14% have fifty or fewer. Second, they are disproportionately European: Germany leads at 24.8%, ahead of the US at 13.4%, and Europe as a whole is 68.4% of the base, the highest in this category, against just 23.4% for English-speaking markets, the lowest. Third, the institutional tail is unusually heavy for a platform this size: 9.86% of Joomla sites are at 51+ employees, nearly three times Squarespace's proportion, and the 212 organisations at 10,001+ include the World Health Organization, U. S. Bank, MediaTek and Malaysia's Ministry of Health.

This duality means Joomla serves two audiences with different motivations. The micro-businesses chose it because it was free. The institutions chose it because it is open-source, self-hosted, and compatible with public-sector procurement rules.

Sales Signal: Segment by size. For the micro-business majority, lead with simplicity and migration assistance, they lack dedicated web teams and are the most receptive to managed alternatives. For the institutional tail, lead with data sovereignty, GDPR compliance and open-source licensing, which are the reasons they chose Joomla in the first place.

3. Industry & Geographic Concentration

Construction leads at 5.65%, followed by Business Consulting and Services (3.92%), Retail (3.73%), IT Services and IT Consulting (3.07%) and Medical Practices (3.01%). No single industry exceeds 6%, which makes Joomla genuinely horizontal. The IT Services concentration is worth noting: many of these are web agencies still maintaining client sites on Joomla, and each one can influence several downstream migrations.

Germany's #1 position (39,254 companies, 24.8%) reflects the strong German-language Joomla community, EU open-source preferences, and GDPR-driven appetite for self-hosted systems. Italy (6.5%), the Netherlands (5.1%), France (4.8%), Poland (4.5%) and Spain (3.7%) form the rest of the European concentration.

Sales Signal: European-focused SaaS companies should treat Joomla detection as a proxy for "prefers open-source, privacy-conscious, self-hosted software." The analytics stack confirms it. Matomo (2.42%) and Yandex. Metrika (2.88%) are far better represented here than on any hosted builder. Target Construction and Medical Practices in Germany specifically: data sensitivity, real budgets, established commitments.

4. Migration Patterns: The WordPress Outflow

The numbers are blunt. Since March 2026, Joomla lost 3,035 domains to WordPress while gaining only 496, a 6.1:1 loss ratio, the most lopsided corridor in this category. It also loses on every other corridor we measure: 152 to Wix against 32 gained, 78 to Squarespace against 15, 67 to Webflow against 22, and 49 to GoDaddy Website Builder against 9. Joomla is net-negative on every single flow in the dataset, which is not true of any other platform here.

Even the Drupal exchange, historically balanced, now tilts: 44 moved from Joomla to Drupal and 11 came back. The two surviving open-source CMS platforms are no longer trading at equilibrium. Joomla is losing to Drupal too, albeit on tiny volumes.

Sales Signal: For migration service providers, the 223,100 remaining Joomla domains are the largest addressable migration opportunity in the open-source CMS space. Focus on the micro-business majority who lack development resources. G2 reviewers flag "confusing interface" as the top complaint, which is the wedge: lead with zero-downtime migration and automatic updates.

5. Tech Stack Ecosystem

Joomla's stack has a fingerprint nothing else in this category shares. 23.21% of Joomla sites still load MooTools, a JavaScript framework effectively dormant for more than a decade, surviving because older Joomla cores bundled it. That single number tells you how much of this install base has not been rebuilt in years, and it doubles as a reliable secondary detection signal.

Google Analytics leads at 40.41%, with Matomo (2.42%) and Yandex. Metrika (2.88%) unusually strong. Ecommerce overlap is negligible and no live-chat vendor reaches 1%. WhatsApp Business Chat leads that category at 3.0%. Joomla is a content CMS, not a commerce platform, and its user base is markedly less commercially oriented than any hosted builder's, consistent with the government, health and education profile.

Sales Signal: The MooTools overlap gives you a targeting dimension competitors who only track CMS detection don't have, and it identifies the least-maintained, most migration-ready segment of the base.

G2 Review Signals

G2 reviews confirm what the migration data already shows. Users praise extensive customizability (4 mentions) and flexible content management (3 mentions), which explains why institutions with complex permission requirements stay. But the top complaint, confusing interface (3 mentions), followed by a steep learning curve (2), maps directly onto the 6.1:1 outflow to WordPress. The review volume itself is thin compared with the larger platforms here, which is its own signal about where new evaluations are happening.

Key Takeaways

• Genuine long decline. Active domains fell from a January 2018 peak of 129,989 through seven consecutive years to July 2025. Within our own measurement series since March 2026, Joomla is flat.
• Net-negative on every corridor. 6.1:1 to WordPress, and losing to Wix, Squarespace, Webflow, GoDaddy and even Drupal. No other platform in this category loses on every flow.
• European institutional core. Germany #1 at 24.8%, Europe 68.4% overall, English-speaking markets only 23.4%, the most European platform we track here.
• Micro-business majority with a real institutional tail. 90.14% under fifty employees, but 9.86% at 51+, nearly three times Squarespace's proportion.
• MooTools on 23.21% of sites is the clearest legacy signal in the category and marks the least-maintained segment.

Sales Applications

Outreach template: "We noticed your organization runs Joomla. G2 reviewers consistently name the admin interface and upgrade process as their biggest frustrations. Here's how [your solution] removes that maintenance burden while preserving the multilingual support and access control your team relies on."

Targeting strategy: Filter for Joomla + Germany + Construction or Medical Practices. That segment combines the highest geographic concentration (24.8%) with the industries most likely to have data-sensitivity requirements and real IT budgets. For migration services, focus on the micro-business majority, who lack the development resources to maintain Joomla long-term.

Competitive angle: Use the MooTools co-detection signal (23.21%) as a secondary Joomla identifier and a proxy for age. Sites still loading it are running older cores and face exactly the upgrade pain that makes them receptive to managed alternatives.

Build your prospect list of companies using Joomla at TechnologyChecker.io, filtering by industry, company size, geography, and tech stack overlap across 223,100 tracked domains and 163,186 enriched company profiles.