EU Sovereignty Score
EU sovereignERP & FinanceHeadquarters: France

LSE Tiamp: sovereignty score and 8 European alternatives

LSE Tiamp is an ERP package for building and civil-engineering firms (BTP in French), aimed at small and mid-sized companies. It covers project management, price estimating, customers and invoicing, site follow-up, purchasing and stock, subcontractors, the equipment fleet, planning, an accounting base and document management, with a mobile application for the construction site. The same publisher also offers LSE BTP eXtend for building firms, with quotes, tenders, amendments, CRM and maintenance contracts, and a module for electronic invoicing. The range is organised by role, such as site manager, finance or purchasing.

LSE Tiamp is published by SAS LSE, headquartered in Saint-Maur-des-Fossés, France; the website names no parent company. The site does not say whether the software runs on your own servers or is delivered as a cloud service, nor where data is hosted, although a customer testimonial mentions a migration to a SaaS version. Anyone considering the package should ask the vendor about the hosting location, the hosting provider and the data-processing terms, because no data-processing agreement or GDPR commitment is described on the site.

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Sovereignty score
71 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-360
    Key management with a European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-655
    Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 17, 2026
Headquarters
FranceVerified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EUVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
NoVendor-stated
Category
ERP & Finance
Type
Product
Website
lse.fr ↗

How we verify · Something wrong? Suggest a correction

European alternatives to LSE Tiamp

The European alternatives to LSE Tiamp come from our knowledge base of over 9,900 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

407 European ERP & Finance vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with LSE Tiamp

LSE Tiamp is headquartered in France and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so LSE Tiamp scores best on data residency.

LSE Tiamp is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs LSE Tiamp together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to LSE Tiamp?

It depends on your use case. Strong EU alternatives to LSE Tiamp include 24SevenOffice, 4CEE Exchange and A3ERP. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to LSE Tiamp?

Yes. Open-source EU alternatives to LSE Tiamp include Abelujo. These keep your data fully under your own control and let you self-host if you want to.

Is LSE Tiamp GDPR-compliant and where is the data hosted?

LSE Tiamp is headquartered in France (EU) and hosts data in the EU. That makes LSE Tiamp an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 17, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

In the changelog

Earlier changes to this page, as listed in the public changelog.

Digital sovereignty in ERP & Finance

ERP & Finance: Enterprise resource planning, accounting, financial software. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

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8 European alternatives to LSE Tiamp (GDPR)