Company lists · Data refreshed September 2026

Top 25 Custom software agencies worldwide

Name: Custom software agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 38,152 companies tracked

RevenueBase identified 38,152 custom software agencies worldwide as of September 2026 and tracks 368,933 professional contacts across them, including 98,873 with verified work emails and 22,929 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers custom software agencies 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 24, 2026. Country and city lists for custom software agencies 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 24, 2026 86% judged on-target in blind review

38,152Companies

368,933Contacts tracked

98,873Verified emails

22,929Mobile numbers

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The 25 largest custom software agencies worldwide

Ranked by team size

Top 25 of 38,152 custom software agencies worldwide, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to custom software agencies: 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	Epicor	Indirect evidence	Austin, TX, United StatesHQ checked Sep 24, 2026	1,001-5,000	5,802 contacts →
	Indirect evidence “We’re here for the hard-working businesses that keep the world turning.” Source: RevenueBase Database · checked Sep 24, 2026
2	Dataart	Partial evidence	New York, NY, United StatesHQ checked Sep 24, 2026	5,001-10,000	5,249 contacts →
	Partial evidence “DataArt is a global software engineering firm that delivers breakthrough data, analytics, and AI platforms for the world’s most demanding organizations.” Source: RevenueBase Database · checked Sep 24, 2026
3	Chetu, INC	Indirect evidence	Sunrise, FL, United StatesHQ checked Sep 24, 2026	1,001-5,000	2,943 contacts →
	Indirect evidence “Chetu is your seamless backend technology partner, helping startups, SMBs, and Fortune companies accelerate development of desktop, mobile, and web apps with on-demand developers…” Source: RevenueBase Database · checked Sep 24, 2026
4	Exadel	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 24, 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 24, 2026
5	Itransition Group	Partial evidence	Decatur, GA, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,664 contacts →
	Partial evidence “Founded in 1998, Itransition is a global software engineering and IT consulting company with engineers supporting clients across 40 countries.” Source: RevenueBase Database · checked Sep 24, 2026
6	Dotsquares	Indirect evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
7	Evosoft	Strong evidence	Nürnberg, GermanyHQ checked Sep 24, 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 24, 2026
8	Mobile Programming	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,462 contacts →
	Partial evidence “Mobile Programming LLC was started with the mission to provide “Economic as well as Efficient” software solutions.” Source: RevenueBase Database · checked Sep 24, 2026
9	Trigent Software INC	Partial evidence	Southborough, MA, United StatesHQ checked Sep 24, 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 24, 2026
10	V Group INC	Indirect evidence	Cranbury, NJ, United StatesHQ checked Sep 24, 2026	n/a	1,347 contacts →
	Indirect evidence “Since V Group Inc.” Source: RevenueBase Database · checked Sep 24, 2026
11	HIQ	Strong evidence	Stockholm, SwedenHQ checked Sep 24, 2026	1,001-5,000	1,228 contacts →
	Strong evidence “HiQ is a tech consulting company focused on custom software development, positioned at the intersection of digital transformation and specialized engineering.” Source: RevenueBase Database · checked Sep 24, 2026
12	BBD	Partial evidence	Rosebank, South AfricaHQ checked Sep 24, 2026	1,001-5,000	1,225 contacts →
	Partial evidence “Welcome to BBD – where experience, innovation and software engineering excellence come together.” Source: RevenueBase Database · checked Sep 24, 2026
13	Relevantz	Strong evidence	Alpharetta, GA, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,164 contacts →
	Strong evidence “We are in the business of custom software engineering.” Source: RevenueBase Database · checked Sep 24, 2026
14	In Time TEC	Indirect evidence	Meridian, ID, United StatesHQ checked Sep 24, 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 24, 2026
15	Brain Station 23	Indirect evidence	Springfield, VA, United StatesHQ checked Sep 24, 2026	501-1,000	1,053 contacts →
	Indirect evidence “Brain Station 23 is at the forefront of global digital transformation, delivering state-of-the-art technology solutions designed to propel businesses into the future.” Source: RevenueBase Database · checked Sep 24, 2026
16	dev.pro	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 24, 2026	501-1,000	997 contacts →
	Partial evidence “Dev.Pro helps innovative technology companies scale their business by leveraging our software engineering expertise to support them every step of the way.” Source: RevenueBase Database · checked Sep 24, 2026
17	Amdaris	Partial evidence	Bristol, United KingdomHQ checked Sep 24, 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 24, 2026
18	Mindera	Indirect evidence	Leicester, United KingdomHQ checked Sep 24, 2026	1,001-5,000	944 contacts →
	Indirect evidence “Mindera is a global consulting and engineering company with 1100+ people, delivering technology solutions across 9 locations, from Brazil to Australia.” Source: RevenueBase Database · checked Sep 24, 2026
19	SFEIR	Indirect evidence	Neuilly-sur-seine, FranceHQ checked Sep 24, 2026	501-1,000	904 contacts →
	Indirect evidence “SFEIR est une Société d’expertise spécialisée dans le développement d’applications sous toutes leurs formes ( web, mobile, IOT, cloud, data, etc.).” Source: RevenueBase Database · checked Sep 24, 2026
20	Trinetix	Strong evidence	Brentwood, TN, United StatesHQ checked Sep 24, 2026	1,001-5,000	902 contacts →
	Strong evidence “Trinetix is a global custom software development partner that brings ambitious ideas to life.” Source: RevenueBase Database · checked Sep 24, 2026
21	Sysmap Solutions	Partial evidence	São Paulo, BrazilHQ checked Sep 24, 2026	1,001-5,000	888 contacts →
	Partial evidence “SysMap Solutions is a services company devoted to offering technological development to its customers since 1997.” Source: RevenueBase Database · checked Sep 24, 2026
22	PIT Solutions	Indirect evidence	Rapperswil, SwitzerlandHQ checked Sep 24, 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 24, 2026
23	Folio3 Software	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 24, 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 24, 2026
24	Tanisha Systems, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 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 24, 2026
25	Taldor	Indirect evidence	Holon, IsraelHQ checked Sep 24, 2026	1,001-5,000	830 contacts →
	Indirect evidence “Taldor is one of Israel leading IT companies.” Source: RevenueBase Database · checked Sep 24, 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: custom software agencies. 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 custom software agencies.
Partial evidence: Its own public description names part of custom software agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software agencies. 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 38,152 custom software agencies worldwide

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Custom software agencies worldwide at a glance

As of Sep 24, 2026

26.8%Verified-email coverage

6.2%Mobile-number coverage

9.7Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · London

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

24,848

11-50

12,436

51-200

3,187

201-500

542

501-1,000

132

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 custom software agencies, 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: 45 countries, largest first: the United States, Brazil, the United Kingdom, Germany, Canada, France, Italy, the Netherlands, Spain, Australia and 35 more. Country and city lists for custom software agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “custom software agencies”. 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 custom software agencies), 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 custom software agencies, 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, 98,873 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 24, 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.

Custom software agencies by location

206 lists · largest first

Every Custom software agencies 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 custom software agencies, 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 custom software agencies are there worldwide?

RevenueBase identified 38,152 custom software agencies 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?

Epicor, headquartered in Austin, tops this list with the largest team on record.

Which country has the most custom software agencies?

The United States leads with 9,024 companies, followed by Brazil (3,217) and the United Kingdom (3,178). Every custom software agencies list by country and city is linked on this page.

Which city has the most custom software agencies?

London leads with 1412 headquartered companies, followed by Sao Paulo (553) and New York (517).

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 98,873 verified decision-maker contacts tracked across these 38,152 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 24, 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.