Companies Using Matomo Tag Manager

As of our March 2026 crawl, TechnologyChecker.io tracks 26,423 domains running Matomo Tag Manager, with 15,138 enriched company profiles. This is the self-hosted, privacy-first alternative to Google Tag Manager. And the data tells a more complicated story than "European organizations switching away from Google." Here's what we found.

Growth Trajectory

Matomo Tag Manager reached 8,560 domains in April 2025 in our earlier records and our current crawl detects it on 26,423. Those are not comparable figures, because the set of domains we crawl turns over every month and our detection signals widen over time. What is comparable is movement inside the current window, and it is up: 20,421 in June 2026 to 26,423 in August, 10.3% in the last month alone, the fastest growth of any tag manager we track. Three forces explain the decline: Google introduced privacy-preserving features that reduced migration pressure, server-side Google Tag Manager became more accessible as a middle ground, and the self-hosting burden proved too high for many smaller organizations.

Sales Signal: The 15% decline from peak means Matomo Tag Manager is losing customers faster than it acquires them. Don't build a growth story around this tool, instead, target the stable core of organizations that can't leave (government, regulated industries) and position products that make their self-hosted stack easier to manage.

"The 2,067 domains that dropped it since March 2026, against 26,423 active and still climbing, tell the real story. Some organizations try self-hosted tag management and decide it isn't worth the operational overhead."

Customer Profile

36.31% of customers have 1-10 employees, one of the most micro-business-concentrated tools in our tag management dataset. Small European agencies and software shops adopt it because they can self-host for free. But the size distribution has a notable institutional tail: 4.66% have 1,001-5,000 employees and 1.88% have 10,001+, including Siemens and Colgate-Palmolive.

The age distribution is distinctive. 11.44% of customers predate 1960, one of the highest pre-1960 concentrations in any tag management tool. Combined with 28.89% from the 2010s and 9.60% from the 2020s, this points to a customer base that mixes old-world institutions (government departments, universities, established manufacturers) with newer digital consultancies.

Sales Signal: The median customer is a small European web agency with under 10 employees. But the high-value segment is the 10%+ of customers with 200+ employees. These are the organizations with compliance budgets and IT teams capable of maintaining self-hosted infrastructure. Filter for that segment when building outreach lists.

Industry and Geographic Concentration

IT Services leads at 4.18%, followed by Software Development (2.79%) and Advertising Services (3.38%). The standout: Government Administration at 2.99%, nearly triple the tag management category average. Caisse des Dépôts, the city of Göteborg and comparable public bodies across Germany and France, these aren't edge cases. They're the core customer profile.

Geographically, Germany leads at 20% (3,173 companies), France at 19.2% (2,347), and the US at just 13.7% (1,962). European countries collectively account for over 65% of all detections. This is a direct response to GDPR enforcement intensity, European regulators have scrutinized Google Tag Manager's data flows to US servers, pushing government agencies and regulated industries toward self-hosted alternatives.

Sales Signal: The 65%+ European concentration and 2.99% government share define the ideal target: European public sector organizations and their service providers. If you sell to government procurement channels or privacy-first infrastructure, Matomo Tag Manager detection is a pre-qualification signal.

Migration Patterns

Net flow runs against Matomo, as it does for every paid tag manager here, but the scale is modest. 379 domains switched from Google Tag Manager to Matomo Tag Manager since we began tracking in March 2026, against 891 going the other way, roughly 2.4:1, on a base that grew 10.3% in the same window. Google Conversion Linker shows a similar pattern: 538 gained, 1,195 lost. This suggests Matomo Tag Manager serves as a temporary stopgap rather than a permanent replacement. Organizations adopt it when regulatory pressure forces them away from Google, then many return when they find compliant Google deployments or when the self-hosting burden becomes untenable.

Sales Signal: The 2.4:1 net flow toward Google means some Matomo Tag Manager users are still being pulled back toward Google's ecosystem, though the base is growing faster than it is leaking. Companies that stay are the ones with non-negotiable compliance requirements, government, healthcare, financial services. Don't waste time on organizations that are likely to return to Google. Focus on the ones that can't.

"A 2.4:1 net flow toward Google Tag Manager, against a base growing 10.3% a month, tells you retention is a real challenge but not an exodus. The companies that stay have genuine regulatory constraints. And that's exactly who you should be targeting."

Technology Ecosystem

Here's the most revealing data point: 70.17% of Matomo Tag Manager customers also run Google Tag Manager. This parallel deployment is deliberate. Organizations use Matomo Tag Manager for first-party tracking they control, while Google Tag Manager fires third-party marketing pixels and ad tags. These aren't ideological purists abandoning Google. They're pragmatists managing compliance risk while maintaining marketing infrastructure.

Google Analytics at 66.57% and GA4 at 38.63% confirm the hybrid approach. On the infrastructure side, Nginx (47.97%) and Apache (42.70%) reflect self-hosted deployments, while Cloudflare sits at just 28.51%, lower than typical, consistent with organizations avoiding US-based infrastructure providers.

Sales Signal: The 70.17% GTM co-deployment means most Matomo Tag Manager users haven't fully committed to leaving Google. They're hedging. If you sell privacy infrastructure or compliance tools, this hybrid setup represents an opportunity to help them fully migrate, or at least to secure the Matomo side of their stack.

G2 Review Signals

Matomo Tag Manager shares its G2 profile with the broader Matomo Analytics platform, and the data is sparse, just 5 total review mentions. Users highlight clarity of graphs (1 mention) as a strength and cite limited options and visibility (1 mention) as the primary concern. The low review volume reflects the buyer persona: government agencies and institutional organizations that evaluate through procurement processes and compliance certifications, not peer review sites. The "limited features" feedback (1 mention) aligns with our migration data, organizations that need advanced tag management features tend to return to Google Tag Manager.

Sales Signal: G2 reviews won't influence purchasing decisions for this audience. Government buyers evaluate through RFPs, compliance frameworks, and data protection impact assessments. If you're selling to Matomo Tag Manager users, lead with compliance certifications and data residency documentation, not customer testimonials.

Key Takeaways

1. Growing, not declining. The base rose 10.3% between July and August 2026, the fastest in this category, and only 2,067 domains have dropped it since we began tracking in March 2026.

2. Government and regulated industries are the sticky core. 2.99% government representation is nearly triple the category average. These organizations can't return to Google.

3. The 2.4:1 net flow to Google defines the retention challenge. Most organizations that try Matomo Tag Manager eventually go back. The ones that stay have hard compliance mandates.

4. Hybrid deployments are the norm. 70.17% run Google Tag Manager in parallel, using Matomo for first-party data and Google for ad tech.

5. 65%+ European concentration. Germany (20%) and France (19.2%) lead. The US is a distant third at 13.7%.

Sales Applications

Outreach template: "We noticed [Company] runs Matomo Tag Manager alongside Google Tag Manager. Are you looking to consolidate your tag management on a single privacy-compliant platform, or do you plan to maintain the dual-stack approach?"

Targeting strategy: Filter for Matomo Tag Manager + Government Administration or Healthcare industry, 51-5,000 employees, Germany/France/Netherlands/Switzerland. This gives you organizations with genuine compliance mandates, IT staff to maintain self-hosted tools, and budgets for privacy infrastructure.

Competitive angle: These organizations chose Matomo Tag Manager because they can't use Google for regulatory reasons. Any pitch that involves US-based data processing will fail immediately. Lead with EU hosting, data sovereignty guarantees, and on-premise deployment options. If your product integrates with Matomo's ecosystem. That's your strongest differentiator.

Explore the full list of 26,423 companies using Matomo Tag Manager on TechnologyChecker.io, complete with firmographic enrichment, tech stack data, and migration patterns updated monthly.