Company lists · Data refreshed September 2026

Top 25 Custom web software agencies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 45,487 companies tracked

RevenueBase identified 45,487 custom web software agencies worldwide as of September 2026 and tracks 284,271 professional contacts across them, including 67,359 with verified work emails and 21,950 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers custom web 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 web 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

45,487Companies

284,271Contacts tracked

67,359Verified emails

21,950Mobile numbers

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The 25 largest custom web software agencies worldwide

Ranked by team size

Top 25 of 45,487 custom web 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 web 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	Chetu, INC	Partial evidence	Sunrise, FL, United StatesHQ checked Sep 24, 2026	1,001-5,000	2,943 contacts →
	Partial 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
2	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
3	Dotsquares	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	501-1,000	1,581 contacts →
	Partial evidence “We leverage the latest web and mobile technologies to build, grow and support your business.” Source: RevenueBase Database · checked Sep 24, 2026
4	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
5	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
6	SFEIR	Partial evidence	Neuilly-sur-seine, FranceHQ checked Sep 24, 2026	501-1,000	904 contacts →
	Partial 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
7	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
8	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
9	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
10	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
11	Codeclouds	Indirect evidence	Wellington, New ZealandHQ checked Sep 24, 2026	501-1,000	727 contacts →
	Indirect evidence “CodeClouds specializes in delivering scalable, robust solutions for modern businesses of all sizes including enterprise clients.” Source: RevenueBase Database · checked Sep 24, 2026
12	americaneagle.com	Partial evidence	Des Plaines, IL, United StatesHQ checked Sep 24, 2026	501-1,000	696 contacts →
	Partial evidence “Americaneagle.com is a full-service, family-owned digital agency that has been dedicated to providing best-in-class web design, development, hosting, post-launch support, and…” Source: RevenueBase Database · checked Sep 24, 2026
13	Programmers Force	Indirect evidence	Lahore, PakistanHQ checked Sep 24, 2026	1,001-5,000	671 contacts →
	Indirect evidence “Programmers Force has been established with an aim to facilitate your business needs with innovative and intelligent solutions.” Source: RevenueBase Database · checked Sep 24, 2026
14	Fingent	Strong evidence	New York, NY, United StatesHQ checked Sep 24, 2026	501-1,000	551 contacts →
	Strong evidence “Fingent, an award-winning and ISO 27001:2013-certified custom software development company, is a trusted partner for businesses seeking strategic IT solutions.” Source: RevenueBase Database · checked Sep 24, 2026
15	Softura	Partial evidence	Farmington Hills, MI, United StatesHQ checked Sep 24, 2026	201-500	534 contacts →
	Partial evidence “Softura is an organization that specializes in providing state-of-the-art software solutions on a wide range of platforms to simplify any un-scalable process.” Source: RevenueBase Database · checked Sep 24, 2026
16	Codecentric AG	Partial evidence	Solingen, GermanyHQ checked Sep 24, 2026	501-1,000	490 contacts →
	Partial evidence “Seit zwei Dekaden entwickelt die codecentric AG moderne, individuelle Software.” Source: RevenueBase Database · checked Sep 24, 2026
17	Editor	Partial evidence	Solkan, SloveniaHQ checked Sep 24, 2026	n/a	488 contacts →
	Partial evidence “Editor is a cutting edge web design and application development agency.” Source: RevenueBase Database · checked Sep 24, 2026
18	Framework Digital	Strong evidence	Belo Horizonte, BrazilHQ checked Sep 24, 2026	501-1,000	460 contacts →
	Strong evidence “We are a software development group with focus on web and mobile development projects.” Source: RevenueBase Database · checked Sep 24, 2026
19	Sigma Infosolutions LTD	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	454 contacts →
	Indirect evidence “Sigma Infosolutions is a prominent provider of technology solutions and services globally, with our headquarters in Irvine, USA, and global offices in Australia & India.” Source: RevenueBase Database · checked Sep 24, 2026
20	Lohika	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 24, 2026	501-1,000	422 contacts →
	Indirect evidence “Lohika is now part of Capgemini.” Source: RevenueBase Database · checked Sep 24, 2026
21	Sombra	Partial evidence	Lviv, UkraineHQ checked Sep 24, 2026	201-500	402 contacts →
	Partial evidence “Sombra is a global software development and consulting company, and…that’s it.” Source: RevenueBase Database · checked Sep 24, 2026
22	ACE Infoway Pvt. LTD	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 24, 2026	201-500	385 contacts →
	Strong evidence “Ace Infoway is a passionate ‘go-to’ Technology Partner for web/software agencies and businesses in various industry verticals, across the globe as an extended partner and offshore…” Source: RevenueBase Database · checked Sep 24, 2026
23	Solbeg	Partial evidence	Jersey City, NJ, United StatesHQ checked Sep 24, 2026	1,001-5,000	371 contacts →
	Partial evidence “Solbeg is a world-class partner in consulting, business process automation, technology, and software engineering services.” Source: RevenueBase Database · checked Sep 24, 2026
24	Modsen	Strong evidence	Warszawa, PolandHQ checked Sep 24, 2026	501-1,000	368 contacts →
	Strong evidence “Modsen is a progressive custom software development company.” Source: RevenueBase Database · checked Sep 24, 2026
25	Advithri Technologies LLC	Partial evidence	Frisco, TX, United StatesHQ checked Sep 24, 2026	201-500	365 contacts →
	Partial evidence “Advithri Technologies is a focused product development, software services and technology consulting company.” 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 web 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 web software agencies.
Partial evidence: Its own public description names part of custom web 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 web 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 45,487 custom web software agencies worldwide

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Custom web software agencies worldwide at a glance

As of Sep 24, 2026

23.7%Verified-email coverage

7.7%Mobile-number coverage

6.2Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · London

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

32,597

11-50

10,521

51-200

1,843

201-500

261

501-1,000

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 web 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, the United Kingdom, France, Brazil, Germany, Canada, Italy, the Netherlands, Spain, Australia and 35 more. Country and city lists for custom web software agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “custom web 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 web 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 web 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, 67,359 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 web software agencies by location

199 lists · largest first

Every Custom web 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 web 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 web software agencies are there worldwide?

RevenueBase identified 45,487 custom web 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?

Chetu, INC, headquartered in Sunrise, tops this list with the largest team on record.

Which country has the most custom web software agencies?

The United States leads with 10,684 companies, followed by the United Kingdom (4,229) and France (3,503). Every custom web software agencies list by country and city is linked on this page.

Which city has the most custom web software agencies?

London leads with 1358 headquartered companies, followed by Paris (564) and Sao Paulo (502).

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 67,359 verified decision-maker contacts tracked across these 45,487 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.