Company lists · Data refreshed September 2026

Top 25 Systems software contractors worldwide

Name: Systems software contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 21,788 companies tracked

RevenueBase identified 21,788 systems software contractors worldwide as of September 2026 and tracks 295,631 professional contacts across them, including 82,798 with verified work emails and 16,083 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers systems software contractors worldwide, 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 6, 2026. Country and city lists for systems software contractors follow the table.

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 6, 2026 86% judged on-target in blind review

21,788Companies

295,631Contacts tracked

82,798Verified emails

16,083Mobile numbers

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The 25 largest systems software contractors worldwide

Ranked by team size

Top 25 of 21,788 systems software contractors worldwide, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to systems software contractors: 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	Softtek	Partial evidence	Monterrey, MexicoHQ checked Sep 6, 2026	10001+	13,490 contacts →
	Partial evidence “At Softtek, we drive the strategic development of our clients through software engineering.” Source: RevenueBase Database · checked Sep 6, 2026
2	Exadel	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,874 contacts →
	Partial evidence “Exadel is a leading global software consulting and development company that looks beyond the code to maximize the technology-driven business impact our partners want to make.” Source: RevenueBase Database · checked Sep 6, 2026
3	Fincons Group	Partial evidence	Vimercate, ItalyHQ checked Sep 6, 2026	1,001-5,000	1,870 contacts →
	Partial evidence “With more than 40 years of experience in IT Business Consulting and System Integration, Fincons Group partners with clients to support business growth through innovation.” Source: RevenueBase Database · checked Sep 6, 2026
4	Dotsquares	Indirect evidence	London, United KingdomHQ checked Sep 6, 2026	501-1,000	1,581 contacts →
	Indirect evidence “We leverage the latest web and mobile technologies to build, grow and support your business.” Source: RevenueBase Database · checked Sep 6, 2026
5	Sigma Software Group	Partial evidence	Stockholm, SwedenHQ checked Sep 6, 2026	1,001-5,000	1,566 contacts →
	Partial evidence “Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 24 years, providing comprehensive IT solutions to various businesses, ranging…” Source: RevenueBase Database · checked Sep 6, 2026
6	IGA	Indirect evidence	Malakoff, FranceHQ checked Sep 6, 2026	n/a	1,530 contacts →
	Indirect evidence “Métiers - Edition de composants/modules logiciels pour les métiers de l’assurance, du voyage et du négoce- Création de solutions spécifiques pour le compte des clients- Suivi et…” Source: RevenueBase Database · checked Sep 6, 2026
7	Evosoft	Strong evidence	Nürnberg, GermanyHQ checked Sep 6, 2026	1,001-5,000	1,519 contacts →
	Strong evidence “The evosoft Group is an international system house that has developed custom-made software solutions since 1995.” Source: RevenueBase Database · checked Sep 6, 2026
8	MSG Global Solutions	Strong evidence	Zurich, SwitzerlandHQ checked Sep 6, 2026	1,001-5,000	1,421 contacts →
	Strong evidence “msg global solutions is a systems integrator, product innovator, and strategic partner with a special focus on enterprise software and services.” Source: RevenueBase Database · checked Sep 6, 2026
9	Trigent Software INC	Partial evidence	Southborough, MA, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,379 contacts →
	Partial evidence “Trigent is a global leader in software solutions, headquartered in Southborough, MA, with development centers in Boston, Bangalore.” Source: RevenueBase Database · checked Sep 6, 2026
10	Relevantz	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,164 contacts →
	Partial evidence “We are in the business of custom software engineering.” Source: RevenueBase Database · checked Sep 6, 2026
11	In Time TEC	Indirect evidence	Meridian, ID, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,139 contacts →
	Indirect evidence “In Time Tec is a platform dedicated to Creating Abundance.” Source: RevenueBase Database · checked Sep 6, 2026
12	Amdaris	Partial evidence	Bristol, United KingdomHQ checked Sep 6, 2026	501-1,000	988 contacts →
	Partial evidence “Amdaris, an Insight Company delivers innovative Software Development, Product Design, Digital Transformation, Application Support and Consultancy Services from our UK headquarters…” Source: RevenueBase Database · checked Sep 6, 2026
13	DBC Company	Indirect evidence	Instituto Caldeira, BrazilHQ checked Sep 6, 2026	501-1,000	982 contacts →
	Indirect evidence “A DBC Company é uma empresa de TI que se preocupa em buscar soluções tecnológicas para seus clientes e parceiros.” Source: RevenueBase Database · checked Sep 6, 2026
14	Proxxi Tecnologia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 6, 2026	1,001-5,000	953 contacts →
	Indirect evidence “A Proxxi Tecnologia é uma empresa que nasceu de uma parceria firmada, em dezembro de 2014, entre a IBM Brasil e o Grupo Bradesco, pela qual a IBM adquiriu o negócio de prestação…” Source: RevenueBase Database · checked Sep 6, 2026
15	Vega IT	Indirect evidence	Novi Sad, SerbiaHQ checked Sep 6, 2026	501-1,000	930 contacts →
	Indirect evidence “Founded in 2008, Vega IT is an AI-native digital transformation partner with 900+ professionals and more than 1,500 delivered projects.” Source: RevenueBase Database · checked Sep 6, 2026
16	Cyber Infrastructure CIS	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 6, 2026	1,001-5,000	921 contacts →
	Indirect evidence “Think Big.” Source: RevenueBase Database · checked Sep 6, 2026
17	Sysmap Solutions	Indirect evidence	São Paulo, BrazilHQ checked Sep 6, 2026	1,001-5,000	888 contacts →
	Indirect evidence “SysMap Solutions is a services company devoted to offering technological development to its customers since 1997.” Source: RevenueBase Database · checked Sep 6, 2026
18	PIT Solutions	Indirect evidence	Rapperswil, SwitzerlandHQ checked Sep 6, 2026	501-1,000	858 contacts →
	Indirect evidence “PIT Solutions is a technology-driven digital services provider with a strong people-first culture and a proven track record of delivering meaningful, high-impact solutions.” Source: RevenueBase Database · checked Sep 6, 2026
19	Folio3 Software	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 6, 2026	501-1,000	846 contacts →
	Partial evidence “Folio3 is a California based software development company that helps entrepreneurs and large corporations build innovative, world class software solutions by providing offshore…” Source: RevenueBase Database · checked Sep 6, 2026
20	Tanisha Systems, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	1,001-5,000	844 contacts →
	Partial evidence “Tanisha Systems, founded in 2002 in Massachusetts-USA, is a leading provider of Custom Application Development and end-to-end IT Services to clients globally.” Source: RevenueBase Database · checked Sep 6, 2026
21	Taldor	Indirect evidence	Holon, IsraelHQ checked Sep 6, 2026	1,001-5,000	830 contacts →
	Indirect evidence “Taldor is one of Israel leading IT companies.” Source: RevenueBase Database · checked Sep 6, 2026
22	Senacor Technologies	Indirect evidence	Eschborn, GermanyHQ checked Sep 6, 2026	1,001-5,000	787 contacts →
	Indirect evidence “Senacor is part of the 25 leading IT-Consulting companies and among the Top 5 of the medium-sized IT-Service providers in Germany and runs 10 offices in Austria, Switzerland…” Source: RevenueBase Database · checked Sep 6, 2026
23	Daffodil Software	Partial evidence	Grandville, MI, United StatesHQ checked Sep 6, 2026	501-1,000	727 contacts →
	Partial evidence “Daffodil Software is a leading software engineering partner that’s empowering 100+ organizations across the globe with innovative solutions, unparalleled execution capabilities…” Source: RevenueBase Database · checked Sep 6, 2026
24	Mirante Tecnologia	Indirect evidence	Brasilia, BrazilHQ checked Sep 6, 2026	1,001-5,000	724 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026
25	Cienet Technologies	Partial evidence	Oak Brook, IL, United StatesHQ checked Sep 6, 2026	1,001-5,000	701 contacts →
	Partial evidence “CIeNET Technologies is a leading technology service provider in the areas of technical consulting, software engineering and solution services.” Source: RevenueBase Database · checked Sep 6, 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: systems software contractors. 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 systems software contractors.
Partial evidence: Its own public description names part of systems software contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name systems software contractors. 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 21,788 systems software contractors worldwide

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Systems software contractors worldwide at a glance

As of Sep 6, 2026

28.0%Verified-email coverage

5.4%Mobile-number coverage

13.6Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

12,110

11-50

6,899

51-200

2,075

201-500

421

501-1,000

127

1,001-5,000

5,001-10,000

10001+

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 systems software contractors, 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.
Coverage: 44 countries, largest first: the United States, Brazil, the United Kingdom, Germany, Italy, Canada, France, Poland, Spain, Argentina and 34 more. Country and city lists for systems software contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “systems software contractors”. 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 systems software contractors), 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 systems software contractors, and records with no verified work email.
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, 82,798 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 6, 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.

Systems software contractors by location

121 lists · largest first

Every Systems software contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 systems software contractors, 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 systems software contractors are there worldwide?

RevenueBase identified 21,788 systems software contractors worldwide 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?

Softtek, headquartered in Monterrey, tops this list with the largest team on record.

Which country has the most systems software contractors?

The United States leads with 5,119 companies, followed by Brazil (2,278) and the United Kingdom (1,695). Every systems software contractors list by country and city is linked on this page.

Which city has the most systems software contractors?

London leads with 526 headquartered companies, followed by Sao Paulo (439) and New York (193).

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 82,798 verified decision-maker contacts tracked across these 21,788 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 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 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.