Every European Server-Side tagging and tag management tool reviewed
Lille, France
Free plan with up to 100,000 requests; paid plans from €90 per month for 1,000,000 requests; add-ons €30 per container, €10 per domain, €20 per region monthly
Demo on request
Best for: Marketing and analytics teams that want sGTM hosted in Europe next to a consent platform
Addingwell hosts Google Tag Manager server containers so that a team can stop running its own Cloud Run project. The product adds a custom domain, a CDN for the gtm.js and gtag.js scripts, tag health monitoring and event consent monitoring, and it publishes its prices: a free plan up to 100,000 requests and paid steps from €90 a month for 1,000,000 requests.
Addingwell SAS is based in Lille, and its privacy policy cites an RCS Paris number, which is how the register entry is written there. According to the vendor, the company joined Didomi in 2025. Which regions Addingwell hosts in was not checked, and the vendor's uplift figures for ROAS and traffic recovery are its own claims.
What Addingwell does well
- Public monthly prices with six volume steps
- Free plan up to 100,000 requests
- Event-level consent monitoring
- Documentation covers ITP, ad blockers and offline events
- French contracting entity with a named seat in Lille
Where Addingwell falls short
- Owned by Didomi since 2025, so the product roadmap follows a consent vendor
- Extra containers, domains and regions are paid add-ons
- Unused monthly requests are not carried over
- Hosting regions not stated on the pages read
Standout feature. Event consent monitoring shows, per event, which consent state arrived at the server.
Heerenveen, Netherlands
Founded 2022
Free up to 10,000 requests per month; Basic from €22 per month (750,000 requests), Pro from €57 (3,000,000), Ultimate from €127 (10,000,000); Enterprise on request
Demo on request
Best for: Agencies and shops that want EU-owned servers instead of Google Cloud and clear plan prices
TAGGRS sells hosted server-side GTM containers and a Meta Conversions API gateway, and runs them on its own servers in the Netherlands, Germany, Belgium, France, Sweden and Norway, where the customer picks a region. Every plan includes a custom subdomain, cookie recovery against the 7-day Safari limit and a PII anonymizer.
TAGGRS B.V. in Heerenveen was founded in 2022. Its security page names an ISO/IEC 27001:2022 certificate from DEKRA, last evaluated in February 2025. Plans run from free at 10,000 requests to Ultimate at €127 a month, and the pricing page shows several columns per plan, so confirm the figure for your site type. Refunds are not given.
What TAGGRS does well
- Own server network in six European countries
- ISO 27001 certificate stated with auditor and date
- Free plan with 10,000 requests
- Plugins for six shop platforms
- Partner programme with consolidated invoicing
Where TAGGRS falls short
- Prices vary by billing toggle and site type
- No refunds
- One account per website unless multi-domain is used
- Multi-domain only from Pro
Standout feature. A named ISO 27001 certificate combined with servers it runs itself, rather than rented cloud capacity.
Elst (Gelderland), Netherlands
Free to 15,000 requests per month; Solo €16, Growth €28, Scale €40, Business €60 per month; Enterprise custom; yearly billing saves 20%
Demo on request
Best for: Small and mid-sized sites that want all features at every price point and a hosted audit
Measurebase gives every plan, including the free one, the same feature list: same-origin tracking, Cookie Keeper, a click ID restorer, IP anonymization, bot filtering and alerts. The pricing page states hosting in Amsterdam on infrastructure Measurebase operates, and paid tiers run from Solo at €16 to Business at €60 a month.
The operator is Dash Forward, trading as Measurebase, in Elst, Gelderland, under KVK 91017408. The founding year and customer names are not published, and request logs are kept for only 3 to 30 days. The Auto Grant Consent power-up is described as testing only, so your own banner still decides consent.
What Measurebase does well
- Every feature on every plan, including Free
- Hosting in Amsterdam stated on the pricing page
- Nightly audit with fixes proposed in your GTM workspace
- Flat multi-domain plans up to ten domains
- EU-law DPA included on all plans
Where Measurebase falls short
- No customers or founding year named on the pages read
- Request logs kept only 3 to 30 days
- Profit tracking only on request
- Small vendor compared with the enterprise platforms
Standout feature. A nightly audit that proposes fixes directly in your GTM workspace.
Vienna, Austria
Core, Professional and Enterprise plans; prices on request (Get Price)
Demo on request
Best for: Larger sites and publishers that want a replacement tag manager with managed EU hosting
JENTIS is a tag manager of its own, from Vienna, that runs client-side and server-side tags together. It does not host Google's container, so adopting it means rebuilding tags. The feature list includes raw data access, a mobile SDK, persistent cookies, native connectors and SSO.
JENTIS GmbH appears in the imprint under Commercial Court of Vienna 529675i, with VAT number ATU75406106. Hosting is managed on EU infrastructure with 24/7 support, though the Professional plan offers a choice of EU or US cloud. Core, Professional and Enterprise plans are quoted on request, and the founding year is not given.
What JENTIS does well
- Own hybrid tag manager rather than a Google add-on
- Managed EU hosting with 24/7 support
- Essential Mode for non-consenting traffic
- Imprint with Commercial Court of Vienna number
- Enterprise features such as SSO and dedicated infrastructure
Where JENTIS falls short
- No public prices
- Rebuild required when leaving GTM
- Cloud region is a choice on Professional
- Founding year not stated on the pages read
Standout feature. Essential Mode keeps limited measurement running for visitors who decline consent.
Hamburg, Germany
€100 per month including 5 million requests, €1.50 per additional 100,000 requests; free trial
Demo on request
Best for: Teams that want a single clear price and a purely European stack for their sGTM
owntag offers a single managed plan for sGTM at €100 a month, including 5 million requests and €1.50 for each further 100,000. It runs the official unmodified Google container, supports up to 10 custom domains and includes bot detection and geolocation. A free trial is available.
owntag GmbH is registered in Hamburg at Amtsgericht Hamburg HRB 189807, VAT DE451812955. The site says its infrastructure sits in the EU with no Google Cloud, AWS or Azure. The founding year and any certification are not named, and the browser fingerprinting feature needs legal review before use.
What owntag does well
- Flat price with 5 million requests included
- Official unmodified Google container
- EU-only infrastructure stated
- Up to 10 custom domains included
- Free trial without a credit card
Where owntag falls short
- High entry price for small sites
- Single plan, no free tier
- No certification named on the pages read
- Fingerprinting feature needs legal review
Standout feature. It states in plain words which cloud providers it does not use.
Paris, France
Founded 2012
Smart plan from €80 per month with annual commitment (usage-based from €0), 14-day free trial; extra GTM container €29 per month; Enterprise and Partner custom
Demo on request
Best for: Publishers and agencies that want French hosting on European providers and many domains
Sirdata sGTM is the server-side tagging service of Sirdata, a Paris company in data and consent. It hosts the container on Scaleway in France and Hetzner in Germany, with redundant infrastructure across France, Germany and the Netherlands, and adds a GTM-Helper script that also works with other hosts.
Sirdata SAS was founded in 2012 and sits under RCS Paris 790 193 924. The Smart plan is listed from €80 a month on an annual commitment, usage-based from €0, with a 14-day trial, unlimited domains and €29 for each extra container. Support on Smart responds within three days, and the pricing page places both figures side by side.
What Sirdata sGTM does well
- Hosts named: Scaleway and Hetzner
- Unlimited domains on every plan
- 14-day free trial
- GTM-Helper works with other hosts too
- Partner plan with free ABconsent CMP
Where Sirdata sGTM falls short
- Three-day support response on Smart
- Extra containers cost €29 per month
- Pricing page mixes usage-based and annual figures
- Not a standalone tag manager
Standout feature. Unlimited domains on every plan, on hosting providers it names.
Antwerp, Belgium
Free to 10,000 requests; Starter €21 per month billed annually (€25 monthly) for 750,000 requests; Business €55 (3,000,000); Professional €125 (10,000,000); Expert €195 (50,000,000)
Demo on request
Best for: Small advertisers and shops that want a Belgian host with predictable monthly steps
Onetagger hosts server-side tagging from Antwerp, with a custom loader, a data enricher, cookie recovery and a webhook tester. Plugins cover WordPress, Shopify and Magento, and the interface is available in ten languages. The vendor states more than 300 integrations.
The operator is Connexeon BV, and the terms apply Belgian law. The privacy policy says the servers are hardware the company owns in Belgium, but no data centre, certification or founding year is named. Prices run from a free plan at 10,000 requests through Starter €21 and Business €55 to Expert €195 for 50,000,000 requests.
What Onetagger does well
- Belgian entity with an address in Antwerp
- Owns its server hardware, per the privacy policy
- Free plan with 10,000 requests
- Plugins for four platforms
- Interface in ten languages
Where Onetagger falls short
- No certification or data centre named
- Multi-domain only from Business
- Services provided as is under the terms
- Performance figures unverified
Standout feature. Five published price steps reach 50,000,000 requests a month.
Wroclaw, Poland
Founded 2013
A free core plan exists; paid tiers are quoted by the sales team
Book a demo
Best for: Enterprises and public bodies that want a tag manager in the same suite as analytics and consent
Piwik PRO bundles analytics, a tag manager, a customer data platform and a consent manager, so the tag manager here is one module of a wider suite. The category page lists the tag manager next to a link to the consent manager, with hosting in Sweden.
Piwik PRO S.A. is based in Wroclaw, Poland, and was founded in 2013. It states EU-only data centres and no US transfers for EU customers. A free core plan exists and paid plans are quoted. Next to the hosts in this list it is a larger product than a site needs if hosting is the only question.
What Piwik PRO does well
- Four modules from one supplier: analytics, tags, CDP and consent
- The consent signal and the measurement come from one system
- Data centres only in the EU, according to the vendor
- Analytical depth aimed at Google Analytics 360 users
- Core tier costs nothing
Where Piwik PRO falls short
- Heavier to run than the single-purpose hosts above
- Paid tiers need a sales conversation
- Too much product for a site that only wants hosting
- Closed source
Standout feature. Consent and measurement sit in the same product as the tag manager.
Paris, France
Every plan is quoted after a sales conversation; no tiers are published
Book a demo
Best for: Enterprise marketing teams that want tag collection, consent and a CDP under one French contract
Commanders Act started as a server-side tag management business and still sells the Enterprise Tag Manager, with more than 100 server-side destinations and consent state attached to events. A Real-Time CDP and, since the Adloop acquisition in October 2023, ad-spend optimisation make up the rest of the suite.
The company trades under that name but is registered as Fjord Technologies in Paris, SIREN 527 730 782. It publishes no pricing, advertises no free trial and gives no founding year, and the vendor does not say where it hosts. Every plan is scoped in a sales conversation.
What Commanders Act does well
- Tags, consent and customer profiles bought from the same Paris company
- Hosting in the EU is stated by the vendor
- Customer profiles can be unified, split into segments and pushed to channels in real time
- Adloop, bought in 2023, brings ad-spend optimisation into the same contract
Where Commanders Act falls short
- Prices are never shown publicly
- No trial is offered on the vendor site
- The CDP is one of three lines, so it is less specialised than a pure CDP
- The vendor gives no founding year
Standout feature. It owns both the tag collection and the consent layer, so no seam sits between them.
Finland, Finland
The free tier carries 5,000 events; the Grow plan is EUR 39.20 a month on annual billing for 50,000 events; Enterprise and Agency are priced individually
Book a demo
Best for: Small advertisers and agencies who want better conversion signals for Meta and Google Ads
Tracklution is a Finnish service that captures conversion events on the server and delivers them to Meta and Google Ads, with offline conversions from CRM, payment or backend systems. The attribution engine appears on the paid Grow plan and above.
Tracklution Oy issues the terms under Finnish law. The security page states AWS with primary data centres in Stockholm, and lists SOC 2 and ISO 27001. The free plan covers 5,000 events and Grow costs €39.20 a month billed annually for 50,000 events. The vendor claims 34.2 percent of conversions recovered on average.
What Tracklution does well
- A free tier exists for a first test
- Paid entry at EUR 39.20 a month
- Main data centres are in Stockholm
- Offline sales can be sent back to ad platforms
- Agencies get one account that manages many clients
Where Tracklution falls short
- Conversion delivery first, attribution second
- The attribution engine starts on Grow
- The free tier stops at 5,000 events
- No media mix modelling or incrementality tests
Standout feature. Offline conversions from your own CRM or backend are sent to ad platforms server-side.
Hamburg, Germany
Software free (MIT); fixed-price services Starter €5,000, Professional €10,000, Enterprise from €20,000; support €600 to €2,400 per month; consulting call €399
Demo on request
Best for: Engineering-led teams that want tracking in version control instead of a click-based tag manager
walkerOS is open-source event collection from elbwalker that you define as configuration in your repository. Sources include the browser, dataLayer and HTTP, a collector handles consent, and destinations such as GA4 and BigQuery are included. The software is free under the MIT licence.
elbwalker GmbH is registered in Hamburg at Amtsgericht Hamburg HRB 156985. Revenue comes from services: fixed-price packages at €5,000, €10,000 and from €20,000, support from €600 to €2,400 a month and a €399 consulting call. The location of the optional hosted app was not checked.
What walkerOS by elbwalker does well
- MIT licence with no restrictions stated
- Config-as-code with review in version control
- Self-hostable
- Named company with Hamburg register entry
- Fixed-price implementation packages
Where walkerOS by elbwalker falls short
- Needs developers
- Implementation packages start at €5,000
- No visual container editor
- Hosted app details not checked
Standout feature. Tracking changes go through pull requests in version control, not through a container editor.
Newbury, United Kingdom
Flex charges $0.35 for each order; Scale begins at $219 a month for 2,000 orders in the vendor calculator; Plus begins at $792 a month; every plan starts with 30 free days
Book a demo
Best for: Shopify merchants who want complete orders in GA4 and ad accounts
Littledata is a Shopify app that captures orders once and delivers them to GA4, Meta, Google Ads, TikTok and Klaviyo, using a persistent ID to recognise returning shoppers after cookies expire. Profit Signal adds gross profit to the conversions sent to ad platforms.
Littledata Technologies Ltd is registered in England and Wales with its office in Newbury. Its privacy policy states that data is stored on Google or AWS servers in North Virginia, USA. Billing runs through Shopify: $0.35 per order on Flex, Scale from $219 a month at 2,000 orders, Plus from $792, with a 30-day trial.
What Littledata does well
- Replaces a GTM setup on a Shopify store
- Recognises returning shoppers for up to a year
- Charges per order, with a 30-day trial
- British company with an office in Newbury
- Passes gross profit to ad platforms
Where Littledata falls short
- Works with Shopify and nothing else
- Delivers clean data but no attribution model of its own
- The database sits in the USA
- Plus begins at $792 a month
Standout feature. It replaces manual Shopify tracking with one data layer that feeds every channel the same orders.
