Company lists · Data refreshed September 2026

Top 25 Ada consulting firms based in Paris, France

Name: Ada consulting firms based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 1,084 companies tracked

RevenueBase identified 1,084 ada consulting firms headquartered in Paris, France as of September 2026 and tracks 22,738 professional contacts across them, including 8,161 with verified work emails. Paris is the largest hub.

This list covers ada consulting firms headquartered in Paris, France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

1,084Companies

22,738Contacts tracked

8,161Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest ada consulting firms based in Paris, France

Ranked by team size

Top 25 of 1,084 ada consulting firms based in Paris, France, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to ada consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Groupe SII	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	10001+	4,928 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
2	Accenture France	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	10001+	1,614 contacts →
	Indirect evidence “Accenture est une entreprise internationale de conseil en management, technologies et externalisation.” Source: RevenueBase Database · checked Sep 22, 2026
3	Prodware	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	1,001-5,000	1,394 contacts →
	Indirect evidence “At Prodware, we believe that Trust, Audacity, and Passion are the driving forces behind meaningful digital transformation.” Source: RevenueBase Database · checked Sep 22, 2026
4	Synchrone FR	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	1,001-5,000	803 contacts →
	Partial evidence “Synchrone apporte son expertise en Consulting, Data Expertise et Digital Experience à ses clients grands comptes.” Source: RevenueBase Database · checked Sep 22, 2026
5	Objectware	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	501-1,000	395 contacts →
	Partial evidence “Objectware Group is an IT Services Company (or ESN: Entreprise de Services du Numérique), founded in and dedicated to consulting and IT system engineering.” Source: RevenueBase Database · checked Sep 22, 2026
6	Ataway	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	394 contacts →
	Partial evidence “Ataway is a global consulting company supporting organizations across industries, with over 25 years of experience and presence in more than 23 countries.” Source: RevenueBase Database · checked Sep 22, 2026
7	Soft Computing	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	365 contacts →
	Indirect evidence “Soft Computing est une société de conseil et de services spécialisée en Gestion de la Relation Client (CRM), Pilotage de la Performance (Business Intelligence) et e-Business.” Source: RevenueBase Database · checked Sep 22, 2026
8	Colombus Consulting	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	321 contacts →
	Partial evidence “Colombus Consulting is a management consulting firm specialized in business change and complex project management.” Source: RevenueBase Database · checked Sep 22, 2026
9	Magellan Consulting	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	313 contacts →
	Partial evidence “Magellan Consulting devient Magellan!” Source: RevenueBase Database · checked Sep 22, 2026
10	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	279 contacts →
	Indirect evidence “Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Source: RevenueBase Database · checked Sep 22, 2026
11	Exiom Partners	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	241 contacts →
	Indirect evidence “Fondé en 2019 par des associés de grands cabinets de conseil, Exiom Partners est un cabinet spécialisé dans les Services Financiers pensé pour proposer un modèle de management…” Source: RevenueBase Database · checked Sep 22, 2026
12	Business At Work	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	232 contacts →
	Indirect evidence “Business At Work is a management and information systems consultancy company offering a range of services entirely focused towards the optimisation of the internal functions of…” Source: RevenueBase Database · checked Sep 22, 2026
13	Convictionsrh	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	230 contacts →
	Partial evidence “ConvictionsRH is a consulting firm specializing in HR, HRIS & Transformation.” Source: RevenueBase Database · checked Sep 22, 2026
14	Ailancy	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	226 contacts →
	Partial evidence “Ailancy is a top-specialist and fast-growing management-consulting firm specialized in the financial services industry and headquartered in Paris.” Source: RevenueBase Database · checked Sep 22, 2026
15	Semaphores	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	223 contacts →
	Partial evidence “Semaphores, a consulting and expertise firm, is involved in a very wide range of skills: from public accounting to organizational strategy projects, including organization…” Source: RevenueBase Database · checked Sep 22, 2026
16	Vertone	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	214 contacts →
	Indirect evidence “Vertone, engagés pour réussir Présents à Paris et désormais à Lyon!” Source: RevenueBase Database · checked Sep 22, 2026
17	Nexialog Consulting	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	212 contacts →
	Indirect evidence “NEXIALOG est un cabinet de conseil en management spécialisé dans le domaine financier.” Source: RevenueBase Database · checked Sep 22, 2026
18	Iliade Consulting	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	211 contacts →
	Partial evidence “Iliade Consulting is an IT Consulting Company specialized in the energy and water sector.” Source: RevenueBase Database · checked Sep 22, 2026
19	A2 Consulting	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	185 contacts →
	Partial evidence “A2 Consulting est un cabinet de conseil en organisation et management multi-spécialiste et totalement indépendant créé en A2 Consulting s'engage auprès des entreprises pour…” Source: RevenueBase Database · checked Sep 22, 2026
20	Wemanity Reply Paris	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	178 contacts →
	Partial evidence “Wemanity Reply is a consulting and delivery firm specialized in technological, organizational, and cultural transformation.” Source: RevenueBase Database · checked Sep 22, 2026
21	MARGO	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	174 contacts →
	Partial evidence “More than a simple IT consulting group, MARGO is an alchemy of talents with constantly enriched expertise, always encouraged to be dynamic and to flourish.” Source: RevenueBase Database · checked Sep 22, 2026
22	Artemys	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	501-1,000	170 contacts →
	Indirect evidence “Concevoir, rationaliser et optimiser votre SI avec de véritables garanties, voilà les ambitions du Permis Informatique.” Source: RevenueBase Database · checked Sep 22, 2026
23	Norgay	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	167 contacts →
	Indirect evidence “NORGAY IT services, la proximité au cœur de votre transformation digitale NORGAY IT Services est une entreprise de services numériques (ESN), implantée sur Brest, Nantes, Paris…” Source: RevenueBase Database · checked Sep 22, 2026
24	Aurexia	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	10001+	147 contacts →
	Partial evidence “Since May 2025, Aurexia has been part of Sopra Steria Next, the management consulting arm of Sopra Steria Group, a major European tech leader.” Source: RevenueBase Database · checked Sep 22, 2026
25	Artimon	Indirect evidence	Paris, FranceHQ checked Sep 22, 2026	51-200	144 contacts →
	Indirect evidence “Artimon est un cabinet de conseil en transformation et un institut de recherche spécialisé dans l’impact des nouvelles technologies.” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: ada consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names ada consulting firms.
Partial evidence: Its own public description names part of ada consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ada consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,084 ada consulting firms based in Paris, France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 8,161 reachable decision-makers.

Free signup · no credit card

View the full list →

Ada consulting firms based in Paris, France at a glance

As of Sep 22, 2026

35.9%Verified-email coverage

21.0Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Paris

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

685

11-50

258

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole France list rather than for Paris, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 1,084 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among ada consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Paris, France whose own description of what they do matches “ada consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names ada consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among ada consulting firms, and records with no verified work email. Companies headquartered outside Paris are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 8,161 across the full list. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Ada consulting firms by metro in France

Ada consulting firms in Paris1084
Ada consulting firms in Lyon119
Ada consulting firms in Toulouse57
Ada consulting firms in Nantes45
Ada consulting firms in Bordeaux42
Ada consulting firms in Neuilly-Sur-Seine41
Ada consulting firms in Marseille35
Ada consulting firms in Boulogne-Billancourt29
Ada consulting firms in Lille28
Ada consulting firms in Courbevoie27
Ada consulting firms in Puteaux25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names ada consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many ada consulting firms are there based in Paris, France?

RevenueBase identified 1,084 ada consulting firms headquartered in Paris, France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Groupe SII, headquartered in Paris, tops this list with the largest team on record.

Which city has the most ada consulting firms?

Paris leads with 1084 headquartered companies, followed by Lyon (119) and Toulouse (57).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 8,161 verified decision-maker contacts tracked across these 1,084 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,084 ada consulting firms based in Paris, France. Start with a free account, no credit card.

Download this list →

Related lists

Ada consulting firms by geography

Browse the directory

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 Smart Search, 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.