Company lists · Data refreshed September 2026

Top 13 Architectural firm software companies based in Nantes, France

Name: Architectural firm software companies based in Nantes, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 43 companies tracked

RevenueBase identified 43 company matches for architectural firm software companies associated with Nantes, France as of September 2026 and tracks 183 professional contacts across them, including 48 with verified work emails. Across France, Paris is the largest hub for this category (518 companies); Nantes has 43.

This list covers company matches for architectural firm software companies associated with Nantes, France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

43Companies

183Contacts tracked

48Verified emails

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The 13 largest architectural firm software companies based in Nantes, France

Ranked by team size

Top 13 of 43 company matches for architectural firm software companies based in Nantes, France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Cairn Ingénierie	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “CAIRN Ingénierie (cairn-ingenierie.fr) – L’ingénierie du sens, en quelques mots : Imaginer les bâtiments de demain, en proposant une ingénierie pluridisciplinaire nourrie par…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	ARS	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “L’agence d’architecture ARS Architectes ROCHETEAU SAILLARD a été fondée en 1992 par Evelyne ROCHETEAU et Eric SAILLARD, Architectes DPLG, issus de l’école d’architecture de Nantes.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Leanco	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	11 contacts →
	Exact match “Depuis 2016, LeanCo édite une suite logicielle qui s'adresse aux promoteurs et constructeurs, dans le but d'optimiser les délais de chantier et d'accroître la productivité globale…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Eben Architecture	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	11-50	10 contacts →
	Exact match “EBEN ARCHITECTURE is an architectural firm founded by Jean François ENET in 1988, then reshuffled in 1996 to create SARL Enet Dolowy, in association with Iga Dolowy, then in 2011…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Topos Architecture	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	6 contacts →
	Exact match “TOPOS Architecture a été créée en 1989.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Officina Architecture	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “Officina ce sont des architectes mais aussi des urbanistes, chefs de chantier et designers d’intérieur.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	I Architectes	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “i ARCHITECTES est une société d'architecture fondée par Hervé Henry en 2015.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Amofi Etudes Programmation Concertation AMO	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Basés à Nantes, nous sommes une société qui est née en 1995 du constat que l’acte de construire se complexifiait.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Atelier Brun Perouze	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Agence d'architecture.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Opus-Création	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Architecture et accompagnement : Création, conception et exécution des plans de votre projet Suivi de chantier et décoration : Exécution des travaux avec une exigence technique et…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Appareil	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	3 contacts →
	Exact match “appareil : subst.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Nextflow Software	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	11-50	2 contacts →
	Exact match “On the 1st of June 2021, our company Nextflow Software was acquired by Siemens Digital Industries Software, where our offering expands the Simcenter™ software portfolio, part of…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Synermi	Exact match	Nantes, FranceHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “SYNERMI est un logiciel professionnel complet, adapté aux besoins métiers des constructeurs de maisons individuelles √ Conçu SUR-MESURE par et pour des constructeurs de maisons…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “architectural firm software companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 13 of 43 architectural firm software companies based in Nantes, France

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Architectural firm software companies based in Nantes, France at a glance

As of Sep 28, 2026

26.2%Verified-email coverage

4.3Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

Email recency for this list is measured across the whole France list rather than for Nantes, so it is reported there. Company counts and contact totals on this page are exact for Nantes, over 43 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Nantes, France whose business descriptions match “architectural firm software companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 48 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Architectural firm software companies by metro in France

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “architectural firm software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many architectural firm software companies are there based in Nantes, France?

RevenueBase identified 43 company matches for architectural firm software companies associated with Nantes, France as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Cairn Ingénierie tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in France has the most architectural firm software companies?

Paris leads France with 518 company records, followed by Lyon (89) and Toulouse (56). Nantes has 43.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 48 professional contacts with verified work emails tracked across these 43 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.