Company lists · Data refreshed September 2026

Top 25 Enterprise software customization firms based in the United States

Name: Enterprise software customization firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 9,926 companies tracked

RevenueBase identified 9,926 enterprise software customization firms headquartered in the United States as of September 2026 and tracks 192,553 professional contacts across them, including 45,913 with verified work emails and 24,976 with mobile numbers. New York is the largest hub.

This list covers enterprise software customization firms headquartered in the United States, 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 30, 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 30, 2026 86% judged on-target in blind review

9,926Companies

192,553Contacts tracked

45,913Verified emails

24,976Mobile numbers

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The 25 largest enterprise software customization firms based in the United States

Ranked by team size

Top 25 of 9,926 enterprise software customization firms based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise software customization 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	Epicor	Indirect evidence	Austin, TX, United StatesHQ checked Sep 30, 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 30, 2026
2	Iris Software INC	Partial evidence	Edison, NJ, United StatesHQ checked Sep 30, 2026	1,001-5,000	3,421 contacts →
	Partial evidence “Iris Software has been a trusted software engineering partner to several Fortune 500 companies for over three decades.” Source: RevenueBase Database · checked Sep 30, 2026
3	People Tech Group INC	Partial evidence	Redmond, WA, United StatesHQ checked Sep 30, 2026	1,001-5,000	2,434 contacts →
	Partial evidence “People Tech Group is a leading Enterprise Solutions, Digital Transformation, Data Intelligence, and Modern Operation services provider.” Source: RevenueBase Database · checked Sep 30, 2026
4	Exadel	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 30, 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 30, 2026
5	Itransition Group	Partial evidence	Decatur, GA, United StatesHQ checked Sep 30, 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 30, 2026
6	Leverx	Partial evidence	Miami, FL, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,632 contacts →
	Partial evidence “LeverX is an SAP Gold Partner, SAP Global Strategic Supplier, and enterprise solutions provider for businesses worldwide, including companies from the Fortune 500 list.” Source: RevenueBase Database · checked Sep 30, 2026
7	Mobile Programming	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 30, 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 30, 2026
8	Joulestowatts Business Solutions PVT LTD	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,435 contacts →
	Indirect evidence “At JoulestoWatts Business Solutions, headquartered in Texas, USA, we stand as a global powerhouse with over 5500+ dedicated professionals, catering to 300+ esteemed clients across…” Source: RevenueBase Database · checked Sep 30, 2026
9	Pragma	Partial evidence	Miami, FL, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,416 contacts →
	Partial evidence “Pragma is a Custom Software Development and Digital Transformation company founded 30 years ago to improve people's lives by transforming businesses.” Source: RevenueBase Database · checked Sep 30, 2026
10	Trigent Software INC	Partial evidence	Southborough, MA, United StatesHQ checked Sep 30, 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 30, 2026
11	Netlink Software Group America INC	Indirect evidence	Madison Heights, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,216 contacts →
	Indirect evidence “At Netlink, we combine human innovation with AI-driven intelligence to build technology solutions that yield immediate, measurable business results.” Source: RevenueBase Database · checked Sep 30, 2026
12	Relevantz	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,164 contacts →
	Partial evidence “We are in the business of custom software engineering.” Source: RevenueBase Database · checked Sep 30, 2026
13	In Time TEC	Indirect evidence	Meridian, ID, United StatesHQ checked Sep 30, 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 30, 2026
14	Brain Station 23	Indirect evidence	Springfield, VA, United StatesHQ checked Sep 30, 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 30, 2026
15	dev.pro	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 30, 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 30, 2026
16	Cyber Infrastructure CIS	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 30, 2026	1,001-5,000	921 contacts →
	Indirect evidence “Think Big.” Source: RevenueBase Database · checked Sep 30, 2026
17	Trinetix	Partial evidence	Brentwood, TN, United StatesHQ checked Sep 30, 2026	1,001-5,000	902 contacts →
	Partial evidence “Trinetix is a global custom software development partner that brings ambitious ideas to life.” Source: RevenueBase Database · checked Sep 30, 2026
18	Folio3 Software	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 30, 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 30, 2026
19	Tanisha Systems, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 30, 2026	1,001-5,000	844 contacts →
	Indirect 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 30, 2026
20	Xtglobal, INC	Indirect evidence	Plano, TX, United StatesHQ checked Sep 30, 2026	501-1,000	841 contacts →
	Indirect evidence “Founded in 1998, XTGlobal, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
21	Amtex Systems INC	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 2026	1,001-5,000	797 contacts →
	Partial evidence “Founded in 1997, with headquarters on Wall Street, New York, Amtex operates across four continents, delivering digital solutions and technical expertise in software, BI, mobile…” Source: RevenueBase Database · checked Sep 30, 2026
22	SUN Technologies	Indirect evidence	Atlanta, United StatesHQ checked Sep 30, 2026	1,001-5,000	763 contacts →
	Indirect evidence “Established in 1996, Sun Technologies Inc.” Source: RevenueBase Database · checked Sep 30, 2026
23	Systems Engineering Services Corporation Sesc	Indirect evidence	Reston, VA, United StatesHQ checked Sep 30, 2026	201-500	747 contacts →
	Indirect evidence “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Source: RevenueBase Database · checked Sep 30, 2026
24	Daffodil Software	Partial evidence	Grandville, MI, United StatesHQ checked Sep 30, 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 30, 2026
25	Cienet Technologies	Partial evidence	Oak Brook, IL, United StatesHQ checked Sep 30, 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 30, 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: enterprise software customization 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 enterprise software customization firms.
Partial evidence: Its own public description names part of enterprise software customization firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise software customization 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 9,926 enterprise software customization firms based in the United States

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Enterprise software customization firms based in the United States at a glance

As of Sep 30, 2026

23.8%Verified-email coverage

13.0%Mobile-number coverage

19.4Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · New York

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

4,388

11-50

3,438

51-200

1,579

201-500

327

501-1,000

109

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 33.0d

13,0310–30

30,74831–60

1,50361–90

3490–180

597180+

Company record updated

Median 94.0d

00–30

17,57231–60

66,99161–90

96,18390–180

11,807180+

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 enterprise software customization 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 the United States whose own description of what they do matches “enterprise software customization 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 enterprise software customization 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 enterprise software customization firms, and records with no verified work email. Companies headquartered outside United States 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, 45,913 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 30, 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.

Enterprise software customization firms by metro

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 enterprise software customization 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 enterprise software customization firms are there based in the United States?

RevenueBase identified 9,926 enterprise software customization firms headquartered in the United States 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 city has the most enterprise software customization firms?

New York leads with 406 headquartered companies, followed by Austin (232) and Houston (201).

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 45,913 verified decision-maker contacts tracked across these 9,926 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 30, 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.