Company lists · Data refreshed September 2026

Top 25 Software engineering firms based in the United States

Name: Software engineering 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 6, 2026 30,627 companies tracked

RevenueBase identified 30,627 software engineering firms headquartered in the United States as of September 2026 and tracks 1,604,649 professional contacts across them, including 436,303 with verified work emails and 255,349 with mobile numbers. New York is the largest hub.

This list covers software engineering 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 6, 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 6, 2026 86% judged on-target in blind review

30,627Companies

1,604,649Contacts tracked

436,303Verified emails

255,349Mobile numbers

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The 25 largest software engineering firms based in the United States

Ranked by team size

Top 25 of 30,627 software engineering firms based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to software engineering 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	DXC Technology	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 6, 2026	10001+	82,768 contacts →
	“DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Source: company website · checked Sep 6, 2026
2	Kyndryl	Indirect evidence	New York City, NY, United StatesHQ checked Sep 6, 2026	10001+	45,903 contacts →
	“We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day.” Source: company website · checked Sep 6, 2026
3	EXL	Indirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	10001+	40,100 contacts →
	“Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Source: company website · checked Sep 6, 2026
4	Globallogic	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 6, 2026	10001+	30,977 contacts →
	“GlobalLogic, a Hitachi Group company, is a trusted partner in design, data, and digital engineering for the world’s largest and most innovative companies.” Source: company website · checked Sep 6, 2026
5	Virtusa	Partial evidence	Southborough, MA, United StatesHQ checked Sep 6, 2026	10001+	29,613 contacts →
	“Virtusa is a global product and platform engineering services company that makes experiences better with technology.” Source: company website · checked Sep 6, 2026
6	Teksystems	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 6, 2026	10001+	24,693 contacts →
	“We’re TEKsystems and TEKsystems Global Services.” Source: company website · checked Sep 6, 2026
7	NTT Data North America	Indirect evidence	Plano, TX, United StatesHQ checked Sep 6, 2026	10001+	22,390 contacts →
	“NTT DATA, Inc.” Source: company website · checked Sep 6, 2026
8	CDW	Indirect evidence	Vernon Hills, IL, United StatesHQ checked Sep 6, 2026	10001+	13,155 contacts →
	“At CDW, we know how to make technology work so people can do great things.” Source: company website · checked Sep 6, 2026
9	Infinite Computer Solutions	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 6, 2026	10001+	12,891 contacts →
	“Infinite is a.” Source: company website · checked Sep 6, 2026
10	Synechron	Indirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	10001+	12,820 contacts →
	“At Synechron, we believe in the power of digital to transform businesses for the better.” Source: company website · checked Sep 6, 2026
11	Guidehouse	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 6, 2026	10001+	12,815 contacts →
	“Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Source: company website · checked Sep 6, 2026
12	Movate	Indirect evidence	Plano, TX, United StatesHQ checked Sep 6, 2026	10001+	12,237 contacts →
	“Movate is a digital technology and customer experience services company committed to disrupting the industry with boundless agility, human-centered innovation, and relentless…” Source: company website · checked Sep 6, 2026
13	Apex Systems	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 6, 2026	1,001-5,000	12,231 contacts →
	“Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Source: company website · checked Sep 6, 2026
14	Softserve	Indirect evidence	Austin, TX, United StatesHQ checked Sep 6, 2026	10001+	11,123 contacts →
	“SoftServe is a technology services company specializing in autonomous enterprises with capabilities in AI-native applications, physical and agentic AI, cloud and data solutions.” Source: company website · checked Sep 6, 2026
15	Slalom	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 6, 2026	10001+	10,032 contacts →
	“Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.” Source: company website · checked Sep 6, 2026
16	BMC Software	Indirect evidence	Houston, TX, United StatesHQ checked Sep 6, 2026	5,001-10,000	9,230 contacts →
	“BMC empowers 86% of the Forbes Global 50 to accelerate business value faster than humanly possible.” Source: company website · checked Sep 6, 2026
17	World Wide Technology	Indirect evidence	Maryland Heights, MO, United StatesHQ checked Sep 6, 2026	10001+	9,184 contacts →
	“We are thinkers and doers.” Source: company website · checked Sep 6, 2026
18	Marvell Technology	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 6, 2026	5,001-10,000	8,984 contacts →
	“We believe that infrastructure powers progress.” Source: company website · checked Sep 6, 2026
19	Ci&t	Indirect evidence	New York, NY, United StatesHQ checked Sep 6, 2026	5,001-10,000	8,037 contacts →
	“We are your global partner in tech-integrated business solutions, turning AI ambition into measurable business impact.” Source: company website · checked Sep 6, 2026
20	Experis	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 6, 2026	10001+	7,984 contacts →
	“Experis® is a global leader in technology services, helping organizations shorten the distance between innovation and business impact in a digital world.” Source: company website · checked Sep 6, 2026
21	Yash Technologies	Indirect evidence	East Moline, IL, United StatesHQ checked Sep 6, 2026	5,001-10,000	7,769 contacts →
	“YASH Technologies is a consulting-led transformation partner with a proven track record of helping customers address their current and prospective digital transformation…” Source: company website · checked Sep 6, 2026
22	R Systems	Strong evidence	El Dorado Hills, CA, United StatesHQ checked Sep 6, 2026	5,001-10,000	7,360 contacts →
	“RSI is a trusted software engineering and digital transformation services partner to global enterprises navigating technological change.” Source: company website · checked Sep 6, 2026
23	Tyler Technologies	Partial evidence	Plano, TX, United StatesHQ checked Sep 6, 2026	5,001-10,000	6,842 contacts →
	“Tyler Technologies (NYSE: TYL) provides integrated software and technology services to the public sector.” Source: company website · checked Sep 6, 2026
24	SHI International Corp	Indirect evidence	Somerset, NJ, United StatesHQ checked Sep 6, 2026	5,001-10,000	6,734 contacts →
	“Think of SHI as your personal technology concierge.” Source: company website · checked Sep 6, 2026
25	Citiustech	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 6, 2026	5,001-10,000	6,378 contacts →
	“CitiusTech is a global technology services, consulting, and business solutions enterprise 100% focused on the healthcare and life sciences industry.” Source: company website · 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: software engineering 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 software engineering firms.
Partial evidence: Its own public description names part of software engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software engineering 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 30,627 software engineering firms based in the United States

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Software engineering firms based in the United States at a glance

As of Sep 6, 2026

27.2%Verified-email coverage

15.9%Mobile-number coverage

52.4Average contacts per company

11-50Median size (employees)

3.5%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

12,719

11-50

10,389

51-200

5,211

201-500

1,344

501-1,000

484

1,001-5,000

306

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

396,8070–30

29,75831–60

83261–90

40090–180

8,506180+

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 software engineering 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 “software engineering 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 software engineering 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 software engineering 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, 436,303 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.

Software engineering 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 software engineering 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 software engineering firms are there based in the United States?

RevenueBase identified 30,627 software engineering 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?

DXC Technology, headquartered in Ashburn, tops this list with the largest team on record.

Which city has the most software engineering firms?

New York leads with 1065 headquartered companies, followed by Houston (648) and Austin (633).

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 436,303 verified decision-maker contacts tracked across these 30,627 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.