Company lists · Data refreshed September 2026
Top 25 Custom software application development services based in the United States
RevenueBase identified 6,764 custom software application development services headquartered in the United States as of September 2026 and tracks 84,212 professional contacts across them, including 18,436 with verified work emails and 10,163 with mobile numbers. New York is the largest hub.
This list covers custom software application development services 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 24, 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.
The 25 largest custom software application development services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,874 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,379 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,164 contacts → | ||||
Strong evidence “We are in the business of custom software engineering.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 5 | 902 contacts → | ||||
Strong evidence “Trinetix is a global custom software development partner that brings ambitious ideas to life.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 6 | 846 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 844 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 544 contacts → | ||||
Indirect evidence “Droisys is an innovation technology company, with a reputation of delivering top engineering projects and teams to meet, execute, and solve complex business challenges & deliver…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 517 contacts → | ||||
Strong evidence “Solution Analysts, a leading enterprise software development company specializes in offering high-end solutions in the domains of mobile, web, and IoT.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 12 | 508 contacts → | ||||
Indirect evidence “Your Business Technology Partner.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 13 | 463 contacts → | ||||
Partial evidence “Having been known as a website development company in the initial stages, Webandcrafts have now blossomed into a global IT solution provider.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 417 contacts → | ||||
Strong evidence “We are a full-lifecycle software development company expert in development, customization, and integration of complex enterprise software, business intelligence analytics…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 16 | 413 contacts → | ||||
Partial evidence “Argusoft is a software solution design company.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 17 | 383 contacts → | ||||
Partial evidence “Plan A Technologies is an award-winning software engineering company.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 18 | 366 contacts → | ||||
Partial evidence “Instinctools is an AI-powered software engineering company.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 19 | 359 contacts → | ||||
Partial evidence “First Line Software is an AI-Native Engineering Company and a Select Partner in the Anthropic Claude Partner Network.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 20 | 345 contacts → | ||||
Strong evidence “Cyberx Info System's unique brand differentiation is our relentless focus on customer-centric mobile app development.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 21 | 341 contacts → | ||||
Partial evidence “Established in 2004, SJ Innovation has completed more than a decade in the software industry.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 22 | 334 contacts → | ||||
Strong evidence “Customer Analytics, for over 20 years, has been in the business of helping clients succeed at what they do, by developing customized software solutions to meet and solve their…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 23 | 322 contacts → | ||||
Indirect evidence “Instituted in 2002, Techgene is an ISO 9001-2008 certified company that provides innovative mobility solutions for enterprises as well as consumer sector.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 24 | 318 contacts → | ||||
Strong evidence “Foothill Technology Solutions is a Software development company.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 25 | 312 contacts → | ||||
Strong evidence “ITX is a custom software development partner trusted for nearly 30 years to deliver solutions that drive real business value.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
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 application development services. 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 application development services.
- Partial evidence
- Its own public description names part of custom software application development services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name custom software application development services. 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 6,764 custom software application development services based in the United States
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Custom software application development services based in the United States at a glance
As of Sep 24, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 27.0dCompany record updated
Median 87.0dHow 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 application development services, 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 “custom software application development services”. 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 application development services), 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 application development services, 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, 18,436 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 application development services by metro
- Custom software application development services in New York312
- Custom software application development services in Austin195
- Custom software application development services in Houston134
- Custom software application development services in Los Angeles134
- Custom software application development services in Sheridan126
- Custom software application development services in San Francisco116
- Custom software application development services in Chicago114
- Custom software application development services in Miami112
- Custom software application development services in Dallas100
- Custom software application development services in Atlanta88
- Custom software application development services in San Diego69
- Custom software application development services in Denver63
- Custom software application development services in Orlando56
- Custom software application development services in Dover53
- Custom software application development services in Portland52
- Custom software application development services in Tampa52
- Custom software application development services in Boston51
- Custom software application development services in Wilmington50
- Custom software application development services in Irvine46
- Custom software application development services in Seattle45
- Custom software application development services in San Jose44
- Custom software application development services in Irving37
- Custom software application development services in Las Vegas36
- Custom software application development services in Plano33
- Custom software application development services in Columbus32
- Custom software application development services in Washington32
- Custom software application development services in Frisco30
- Custom software application development services in Phoenix30
- Custom software application development services in Richmond30
- Custom software application development services in Fort Lauderdale29
- Custom software application development services in Newark28
- Custom software application development services in San Antonio28
- Custom software application development services in Jacksonville27
- Custom software application development services in Minneapolis27
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 application development services, 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 application development services are there based in the United States?
RevenueBase identified 6,764 custom software application development services 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?
Exadel, headquartered in Walnut Creek, tops this list with the largest team on record.
Which city has the most custom software application development services?
New York leads with 312 headquartered companies, followed by Austin (195) and Houston (134).
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 18,436 verified decision-maker contacts tracked across these 6,764 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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Custom software application development services by geography
- Custom software application development services based in the United Kingdom
- Custom software application development services based in Brazil
- Custom software application development services based in Germany
- Custom software application development services based in Canada
- Custom software application development services based in France
- Custom software application development services based in Italy
- Custom software application development services based in Spain
- Custom software application development services based in Australia
- Custom software application development services based in Poland
- Custom software application development services based in the Netherlands
- Custom software application development services based in South Africa
- Custom software application development services based in Mexico
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.
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