Company lists · Data verified August 2026

Top 25 Custom software development firms based in France

Name: Custom software development firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,394 companies tracked

There are 1,394 custom software development firms headquartered in France (RevenueBase, August 2026). RevenueBase tracks 8,497 professional contacts across them, including 2,864 with verified work emails and 254 with mobile numbers. Paris is the largest hub.

This list covers custom software development firms headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

1,394Companies

8,497Contacts tracked

2,864Verified emails

254Mobile numbers

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The 25 largest custom software development firms based in France

Ranked by team size

Top 25 of 1,394 custom software development firms based in France, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Kaizen Solutions KZS	Paris	201-500	268	173
2	Takima	Bagneux	51-200	219	108
3	AXYUS	Nantes	51-200	172	119
4	SCUB	Bordeaux	51-200	125	47
5	Spark-It	Courbevoie	51-200	105	46
6	DIROX	Paris	51-200	105	9
7	Castelis	Ivry Sur Seine	51-200	95	47
8	Toshiba Centre Grand Ouest	Orleans	51-200	94	3
9	6tm	Rennes	51-200	92	73
10	4sh	Le Haillan	51-200	85	67
11	SERLI	Niort	51-200	80	29
12	Thetribe	Nantes	51-200	79	45
13	Square1	Mougins	51-200	76	42
14	Ipanova	Blagnac	51-200	70	52
15	Exomind	Boulogne-Billancourt	51-200	70	32
16	Désirade	Lyon	51-200	69	41
17	Elephant Technologies	Nantes	51-200	65	11
18	Ipsosenso	Paris	51-200	64	48
19	Kreactive	Paris	51-200	53	21
20	Repply	La Rochelle	11-50	52	25
21	BILOG	Versailles	51-200	51	11
22	Ibisdev	Paris	51-200	49	1
23	Wemoov	Carquefou	51-200	48	5
24	Enovea, Votre Partenaire Logiciel	Paris	11-50	46	12
25	Vigicorp	Saint-Herblain	11-50	45	28

Showing 25 of 1,394 custom software development firms based in France

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Custom software development firms based in France at a glance

As of Aug 28, 2026

1-10Median size (employees)

ParisLargest hub · 260 HQs

254Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

1,104

11-50

228

51-200

201-500

10001+

Custom software development firms by metro

Metro	Companies
Custom software development firms in Paris	260
Custom software development firms in Lyon	58
Custom software development firms in Toulouse	36
Custom software development firms in Bordeaux	33
Custom software development firms in Marseille	19
Custom software development firms in Nantes	17
Custom software development firms in Lille	16

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “custom software development firms”, with match quality audited by blind human judging, and headquartered in France.
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: Contact records re-verify on a rolling cadence; 4 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many custom software development firms are there based in France?

There are 1,394 custom software development firms headquartered in France as of August 2026 (RevenueBase).

What is the largest company on this list?

Kaizen Solutions KZS, headquartered in Paris, tops this list with the largest team on record.

Which city has the most custom software development firms?

Paris leads with 260 headquartered companies, followed by Lyon (58) and Toulouse (36).

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 2,864 verified decision-maker contacts tracked across these 1,394 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.