Company lists · Data refreshed September 2026
Top 25 Custom software development agencies based in the United States
RevenueBase identified 10,835 custom software development agencies headquartered in the United States as of September 2026 and tracks 128,564 professional contacts across them, including 25,840 with verified work emails and 17,150 with mobile numbers. New York is the largest hub.
This list covers custom software development agencies 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 1, 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 development agencies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,970 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 1, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,566 contacts → | ||||
Indirect evidence “We leverage the latest web and mobile technologies to build, grow and support your business.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,368 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 1, 2026Thanks. The Data Team will review it. | |||||
| 4 | 694 contacts → | ||||
Indirect evidence “Americaneagle.com is essentially a one-stop shop offering a full range of solutions for anyone looking to succeed in their online endeavors.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 5 | 548 contacts → | ||||
Indirect evidence “Gemini Consulting & Services (GCS) is a leading provider of technology solutions.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 6 | 427 contacts → | ||||
Indirect evidence “Lohika is now part of Capgemini.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 7 | 382 contacts → | ||||
Indirect evidence “VIVA USA Inc.(VIVA), certified Woman and Minority Owned, is a Technology and IT consulting company based in the greater Chicago area.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 8 | 367 contacts → | ||||
Partial evidence “Solbeg is a world-class partner in consulting, business process automation, technology, and software engineering services.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 9 | 328 contacts → | ||||
Indirect evidence “Founded in 1997, Everest Technologies is a leading Information Technology solutions provider based in Columbus, Ohio.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 10 | 320 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 11 | 319 contacts → | ||||
Partial evidence “Conceptualized in 2015, Sails Software Inc partners with businesses across several industries in making amazing software products with ever evolving technology and processes.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 12 | 287 contacts → | ||||
Indirect evidence “ValzoSoft Solutions – Driving Innovation, Empowering Growth At ValzoSoft Solutions, we turn visionary ideas into transformative digital experiences.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 13 | 264 contacts → | ||||
Indirect evidence “Caspex: Leading International Consulting & Technology Services At Caspex, we specialize in delivering transformative technology solutions to businesses worldwide.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 14 | 254 contacts → | ||||
Strong evidence “WaveAccess is a results-driven company that provides high quality custom software development and IT consulting services.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 15 | 230 contacts → | ||||
Indirect evidence “ExterNetworks, headquartered in Piscataway, New Jersey, and with further strategic locations across North America, Europe, the Middle East and Asia, ExterNetworks has rapidly…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 16 | 165 contacts → | ||||
Partial evidence “Nextgen Technologies takes pride in helping its customers to succeed through ever changing IT technology and business environment, delivering more time with standing solutions for…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 17 | 148 contacts → | ||||
Partial evidence “Synova is a technology enterprise that offers software consulting services and solutions to small, medium and large organizations in five continents.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 18 | 117 contacts → | ||||
Indirect evidence “Daitan is now Encora.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 19 | 77 contacts → | ||||
Partial evidence “Whether your product is at the starting point of the development journey or you have already had some groundwork, we help you build an optimal solution, efficient today and easily…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 20 | 71 contacts → | ||||
Strong evidence “We are a dedicated and skillful software development and managed cloud services team, specializing in creating, innovating, launching, and managing transformative technology…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 21 | 58 contacts → | ||||
Strong evidence “SForce IT is a team of committed IT experts, who come with a promise of delivering world-class software and web development services that focus on playing a supportive role to…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 22 | 56 contacts → | ||||
Indirect evidence “Develonica, as part of Softline Group, a leading global solutions and services provider in digital transformation and cybersecurity, with its headquarters in London, has provided…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 23 | 46 contacts → | ||||
Indirect evidence “Welcome to Ally Wiredsoft Solutions (AWSPL), Official SAP Premium partner.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Indirect evidence “Codism as a company is a tech startup and have been in successful in reaching great heights with the knowledge of taking a tech business to a next level.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 25 | 17 contacts → | ||||
Strong evidence “Trinuc Company is web & software development firm, providing IT solutions to clients in diverse industries.” Source: RevenueBase Database · checked Sep 1, 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 development 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 development agencies.
- Partial evidence
- Its own public description names part of custom software development 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 development 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 10,835 custom software development agencies based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 25,840 reachable decision-makers.
Free signup · no credit card
Custom software development agencies based in the United States at a glance
As of Sep 1, 2026Companies by employee count
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 development 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.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “custom software development 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 development 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 development agencies, 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, 25,840 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 1, 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 development agencies by metro
- Custom software development agencies in New York497
- Custom software development agencies in Austin291
- Custom software development agencies in Los Angeles204
- Custom software development agencies in Miami202
- Custom software development agencies in Houston195
- Custom software development agencies in Chicago193
- Custom software development agencies in San Francisco182
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 development 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 development agencies are there based in the United States?
RevenueBase identified 10,835 custom software development agencies 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?
Chetu, INC, headquartered in Baltimore, tops this list with the largest team on record.
Which city has the most custom software development agencies?
New York leads with 497 headquartered companies, followed by Austin (291) and Los Angeles (204).
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 25,840 verified decision-maker contacts tracked across these 10,835 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 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 10,835 custom software development agencies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Custom software development agencies by geography
- Custom software development agencies based in the United Kingdom
- Custom software development agencies based in Brazil
- Custom software development agencies based in Germany
- Custom software development agencies based in France
- Custom software development agencies based in Canada
- Custom software development agencies based in Italy
- Custom software development agencies based in the Netherlands
- Custom software development agencies based in Australia
- Custom software development agencies based in Spain
- Custom software development agencies based in Poland
- Custom software development agencies based in Argentina
- Custom software development agencies based in Mexico
Browse the directory
Browse: Companies home · All United States lists · All Custom software development agencies lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Custom software development agencies based in the United Kingdom
- Custom software development agencies based in Brazil
- Custom software development agencies based in Germany
- Custom software development agencies based in France
- Custom software development agencies based in Canada
- Custom software development agencies based in Italy