JENTIS

What Is JENTIS?

Here is a widely held assumption in digital analytics: accurate measurement requires user consent. Consent banners are the cost of doing business under GDPR. Conversion data will always be incomplete because some visitors will always click "reject." Every marketing team has learned to live with a consent gap — the difference between actual conversions and the ones their analytics can see.

JENTIS challenges that assumption directly. The Austrian company, founded in 2020 in Vienna, has built a server-side tag management platform where the headline feature is not better tag management but a technology called Essential Tag. It generates synthetic, modelled data for visitors who decline tracking consent, producing statistically accurate analytics without requiring cookies or consent for basic measurement. European data protection authorities have certified the approach.

This is not a privacy-washing exercise. JENTIS is a genuinely independent platform: it does not build on Google Tag Manager infrastructure. The company has its own tag management interface, its own server-side processing engine, and over 100 pre-built vendor connectors. The platform is designed for enterprises: there is no free tier, no self-service signup, and no published pricing. A Series A-funded team of 51-200 employees supports the product from Vienna.

For organisations tired of choosing between measurement accuracy and privacy compliance, JENTIS offers a third option. Whether the enterprise price tag is justified depends on how much that consent gap costs your business.

Key Features

Essential Tag — Cookieless Tracking

Essential Tag is JENTIS's most distinctive capability and the feature that separates it from every other tag management platform. When a visitor declines consent or uses a browser that blocks cookies, Essential Tag generates synthetic data points based on statistical modelling. These modelled events maintain aggregate accuracy: your conversion totals, funnel metrics, and attribution data remain statistically valid, without tracking individual users who opted out.

The technology has been reviewed and certified by European data protection authorities, which is a significant endorsement. It means JENTIS is not simply claiming privacy compliance; regulators have examined the synthetic data approach and confirmed it meets GDPR requirements. For marketing teams losing 30-50% of their conversion data to consent rejection, Essential Tag recovers that visibility without compromising user privacy.

Independent Tag Management Platform

Unlike Stape or other server-side GTM hosting services, JENTIS is not a layer on top of Google Tag Manager. The entire platform is proprietary. You configure tags, triggers, and data streams within the JENTIS interface, not within GTM. This independence has real implications: you are not subject to GTM's feature roadmap, you are not sending container configuration data to Google, and you gain access to capabilities that GTM's architecture does not support.

The 100+ pre-built vendor connectors cover major advertising platforms (Meta, Google Ads, TikTok, Microsoft Advertising, Criteo, Pinterest), analytics tools (GA4, Adobe Analytics), and CRM systems (Salesforce). Custom connectors can be built for vendors not in the standard library.

Data Stream Control

JENTIS allows granular control over what data reaches each vendor. Rather than forwarding complete event payloads to every connected tool, you can define per-vendor data streams that include only the specific data points that vendor needs. Google Ads gets conversion values and click IDs. Meta gets event names and hashed email addresses. Your CRM gets the full customer record. This data minimisation approach is not just a privacy benefit. It also reduces the risk of accidentally sharing sensitive data with advertising platforms.

Data Quality Engine

Server-side tag management inherently improves data quality by eliminating client-side interference (ad blockers, browser restrictions, JavaScript errors). JENTIS goes further with a data quality engine that validates, deduplicates, and enriches event data before it reaches downstream tools. The result is more accurate conversion attribution and cleaner analytics data than either client-side tagging or basic server-side GTM can deliver.

Pricing

JENTIS does not publish pricing, and this review cannot invent numbers that do not exist publicly. The platform uses custom enterprise pricing based on traffic volume, feature requirements, and contract length. All plans are annual commitments.

What is clear from the market positioning is that JENTIS targets mid-to-large enterprises. The absence of a free tier, self-service signup, or starter plan signals that the product is not designed for small businesses or individual marketers. Expect pricing that reflects enterprise software norms: meaningful annual commitments with professional services for implementation.

The value calculation depends heavily on your consent gap. If 40% of your conversions are invisible due to consent rejection, and Essential Tag recovers most of that data, the ROI can be substantial. A business spending EUR 100,000 per month on digital advertising with a 40% consent gap is effectively blind to EUR 40,000 of monthly ad spend performance. Recovering that visibility has clear economic value.

For organisations with low consent rejection rates (common in B2B or regions with less strict enforcement), the premium over a managed GTM setup like Stape is harder to justify.

EU Compliance & Privacy

JENTIS holds the strongest compliance position of any tag management platform in this directory. The company is incorporated as JENTIS GmbH in Vienna, Austria. All data processing and storage occurs exclusively within the EU. The platform has been certified by European data protection authorities, a distinction that goes beyond self-declared GDPR compliance.

The architectural approach reinforces this position. JENTIS operates as infrastructure that the customer controls. The company itself does not access or use customer data flowing through the platform. Data minimisation is built into the product through per-vendor data stream controls. Essential Tag's synthetic data approach has been specifically designed to comply with ePrivacy Directive requirements for cookieless measurement.

For regulated industries — financial services, healthcare, government — JENTIS provides the kind of documented, certified compliance posture that procurement and legal teams require. The independence from Google's ecosystem removes a common audit concern: proving that no data flows to US-based infrastructure through your tag management layer.

Who It's Best For

Enterprise marketing teams losing significant conversion data to consent rejection, where Essential Tag's synthetic data recovery can materially improve campaign optimisation and budget allocation.

Regulated enterprises in financial services, healthcare, or government that need certified GDPR compliance with documented data processing controls and EU-only infrastructure.

Organisations seeking independence from Google's tag management ecosystem who want a fully European, proprietary platform that does not route configuration data or event processing through Google infrastructure.

Data-mature teams with the technical expertise to implement and manage a server-side tag management platform, and the budget to support enterprise pricing.

The Verdict

JENTIS is the most privacy-advanced tag management platform available in Europe, and possibly anywhere. Essential Tag's certified cookieless tracking is a genuine innovation that solves a real problem: the consent gap that undermines digital measurement across the EU. The independent platform, 100+ vendor connectors, and data stream controls make it a technically superior solution to server-side GTM for complex enterprise requirements. The trade-offs are equally clear. Enterprise-only pricing, no self-service option, and a setup complexity that demands technical resources. If your organisation's consent gap is costing real money and you need a certified compliance posture, JENTIS justifies the investment. For simpler needs, managed GTM hosting from a provider like Stape delivers 80% of the value at a fraction of the cost.

Frequently Asked Questions

Is JENTIS GDPR compliant?

Yes. JENTIS was purpose-built for GDPR compliance and has been certified by European data protection authorities. All data is processed exclusively in the EU. The platform does not access customer data; it operates as infrastructure under the customer's control. Essential Tag's synthetic data approach has been reviewed for compliance with both GDPR and the ePrivacy Directive.

What is Essential Tag and how does it work?

Essential Tag is JENTIS's cookieless tracking technology. When a visitor declines consent or blocks cookies, Essential Tag generates synthetic, modelled data points that maintain aggregate statistical accuracy. Your total conversion counts, funnel metrics, and attribution remain valid without tracking individual opted-out users. European data protection authorities have certified this approach.

How does JENTIS compare to server-side Google Tag Manager?

JENTIS is a fully independent platform, not a hosting layer for GTM. It offers its own interface, 100+ native vendor connectors, Essential Tag cookieless tracking, and per-vendor data stream control, all features that GTM does not provide. JENTIS is more expensive and complex than managed GTM solutions, but offers deeper functionality and stronger compliance guarantees.

Can small businesses use JENTIS?

JENTIS is designed for mid-to-large enterprises. There is no free tier, no self-service signup, and no published starter pricing. Small businesses and individual marketers should consider alternatives like Stape (managed server-side GTM) or Matomo Tag Manager (free, open-source) depending on their requirements.