Company lists · Data refreshed November 2026

Top 25 Process optimization engineering firms based in France

RevenueBase identified 1,518 company matches for process optimization engineering firms associated with France as of November 2026 and tracks 83,119 professional contacts across them, including 18,509 with verified work emails. Paris is the largest hub.

This list covers company matches for process optimization engineering firms associated with 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 November 6, 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 Nov 6, 2026 How this list was built
1,518Companies
83,119Contacts tracked
18,509Verified emails
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The 25 largest process optimization engineering firms based in France

Ranked by team size
Top 25 of 1,518 company matches for process optimization engineering firms based in France, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchParis, FranceHQ recorded Nov 6, 202610001+5,212 contacts →

Exact match

“Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNanterre, FranceHQ recorded Nov 6, 202610001+5,087 contacts →

Exact match

“Actemium delivers bespoke solutions and services to clients across 40 countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAix-en-provence, FranceHQ recorded Nov 6, 202610001+3,602 contacts →

Exact match

“En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMontpellier, FranceHQ recorded Nov 6, 202610001+3,588 contacts →

Exact match

“ALTRAD AT A GLANCE Altrad is a world leader in the provision of industrial services, generating high-added value solutions principally for the Energy, Power Generation, Oil & Gas…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchParis, FranceHQ recorded Nov 6, 20265,001-10,0002,064 contacts →

Exact match

“Fives, an industrial engineering group, designs and supplies machines, process equipment and production lines for the world's largest industrial players.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFranceHQ recorded Nov 6, 20265,001-10,0001,953 contacts →

Exact match

“The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchVitrolles, FranceHQ recorded Nov 6, 20261,001-5,0001,907 contacts →

Exact match

“GROUPE ADF accompagne les acteurs majeurs de l’industrie sur 5 secteurs d’expertise en proposant des solutions d’ingénierie, de production et de maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNeuilly-sur-seine, FranceHQ recorded Nov 6, 20265,001-10,0001,705 contacts →

Exact match

“Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchVilleurbanne, FranceHQ recorded Nov 6, 20261,001-5,0001,438 contacts →

Exact match

“SOLUTEC: An IT Services Company SOLUTEC is an IT services company specialized in engineering, consulting and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSchiltigheim, FranceHQ recorded Nov 6, 20261,001-5,0001,014 contacts →

Exact match

“Fondée en 2008, T&S est une entreprise spécialisée dans l'ingénierie, le digital et le conseil.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBoulogne-billancourt, FranceHQ recorded Nov 6, 20261,001-5,000868 contacts →

Exact match

“We are true to our word Expertise, trust, careers For 36 years, Apside has cooperated with the largest French and European groups on their IT and scientific projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchOlivet, FranceHQ recorded Nov 6, 20261,001-5,000824 contacts →

Exact match

“Antea Group est une société internationale d’ingénierie et de conseil en environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEstaque, FranceHQ recorded Nov 6, 20261,001-5,000801 contacts →

Exact match

“For over 50 years the Parlym Group has managed to establish itself as a major player in industrial engineering all over the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLevallois-perret, FranceHQ recorded Nov 6, 20261,001-5,000727 contacts →

Exact match

“Le Groupe INTM est une société de conseil et de services en ingénierie numérique, dont le positionnement s'inscrit depuis plusieurs années dans une volonté de proximité, d'écoute…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact match92300 Levallois Perret, FranceHQ recorded Nov 6, 20261,001-5,000647 contacts →

Exact match

“Depuis sa création en 2013, AptiSkills s’est imposée comme un acteur de référence avec plus de 10 agences réparties sur toute la France.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLyon, FranceHQ recorded Nov 6, 2026501-1,000519 contacts →

Exact match

“Acteur reconnu depuis plus de 100 ans, le participe activement à la transition écologique en proposant des prestations de conseil et d’ingénierie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchClichy, FranceHQ recorded Nov 6, 202651-200506 contacts →

Exact match

“Ginger SOFRECO is an engineering and consulting firm dedicated to international development cooperation and the implementation of industrial projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMarseille, FranceHQ recorded Nov 6, 2026201-500466 contacts →

Exact match

“TPF Ingénierie, société d’ingénierie active dans les secteurs du Bâtiment, des Infrastructures, de l’Eau/Environnement et de l’Énergie/Maintenance, s’appuie sur plus de 60 ans…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMulhouse, FranceHQ recorded Nov 6, 2026501-1,000402 contacts →

Exact match

“Welcome to the Hive!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLyon, FranceHQ recorded Nov 6, 2026201-500393 contacts →

Exact match

“ERAS, an EQUANS brand, is a multi-specialist engineering company dedicated to the process industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLyon, FranceHQ recorded Nov 6, 2026501-1,000393 contacts →

Exact match

“QUI SOMMES NOUS?@CLEEVEN, cabinet de conseil en ingénierie, s'est construit autour de 2 convictions extrêmement fortes - L'excellence des Ingénieurs européens doit permettre à…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSaint-herblain, FranceHQ recorded Nov 6, 2026201-500392 contacts →

Exact match

“Atlantic Ingénierie, l’énergie d’avancer ensemble Chez Atlantic Ingénierie, nous avons une conviction : les projets d’énergie et d’industrie avancent mieux quand on allie…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchParis, FranceHQ recorded Nov 6, 202610001+378 contacts →

Exact match

“We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchParis, FranceHQ recorded Nov 6, 2026201-500360 contacts →

Exact match

“ECM (Engineering Conception Maintenance) a été créée en 1973 par le groupe CRIT, leader français du service aux entreprises dont le C.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchParis, FranceHQ recorded Nov 6, 2026501-1,000337 contacts →

Exact match

“Anotech delivers complex energy projects by integrating project governance, controls, engineering integrity, and execution into a single, accountable delivery model across the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,518 process optimization engineering firms based in France

See the full list, filter by size, metro and specialty, and access 18,509 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Process optimization engineering firms based in France at a glance

As of Nov 6, 2026
22.3%Verified-email coverage
54.8Average contacts per company
1-10Median size (employees)
9.0%Largest-city concentration · Paris
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
816
11-50
424
51-200
177
201-500
38
501-1,000
14
1,001-5,000
20
5,001-10,000
6
10001+
8

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 1,518 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 France whose business descriptions match “process optimization engineering firms” 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 18,509 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 November 6, 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.

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 “process optimization engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many process optimization engineering firms are there based in France?

RevenueBase identified 1,518 company matches for process optimization engineering firms associated with France as of November 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?

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

Which city has the most process optimization engineering firms?

Paris leads with 137 company records, followed by Lyon (66) and Toulouse (26).

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 18,509 professional contacts with verified work emails tracked across these 1,518 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 November 6, 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.