Company lists · Data refreshed September 2026
Top 25 Custom web software agencies based in Irvine, United States
RevenueBase identified 71 custom web software agencies headquartered in Irvine, United States as of September 2026 and tracks 1,355 professional contacts across them, including 446 with verified work emails. New York is the largest hub.
This list covers custom web software agencies headquartered in Irvine, 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 web software agencies based in Irvine, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 318 contacts → | ||||
Partial evidence “Foothill Technology Solutions is a Software development company.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 3 | 111 contacts → | ||||
Partial evidence “Datanetiix is a One-Stop-Solutions provider for your software development, business analytics & IT needs.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 4 | 78 contacts → | ||||
Indirect evidence “DNA Micro is a technology solutions company with over 22+ years of history developing medium to large scale solutions in various industries.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 5 | 51 contacts → | ||||
Strong evidence “First American Software Solutions Group provides custom software solutions for the real estate and financial services industries, including application and database development…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 6 | 40 contacts → | ||||
Indirect evidence “We’re an innovative digital agency that combines creative excellence and industry leading talent to redefine the digital experience.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 7 | 25 contacts → | ||||
Partial evidence “Clouda Inc is a software development agency focused on implementing solutions that drive ecommerce excellence.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Indirect evidence “Welcome to Company A.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 9 | 18 contacts → | ||||
Indirect evidence “Give your business an advantage no one else has.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 10 | 16 contacts → | ||||
Partial evidence “Allied Consultants is a technology consulting firm specializing in Enterprise Application Integration, Business Intelligence, Web 2.0 and Mobile Development.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 11 | 14 contacts → | ||||
Partial evidence “Since Web Advanced has specialized in enabling businesses to grow online.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Indirect evidence “Baytech is a team of developers, architects and project managers with a singular focus.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Partial evidence “Our global team strategies, designs, and builds software, which means you don’t need multiple agencies for one project.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 contacts → | ||||
Partial evidence “zC is a premier software development and consulting firm that delivers cutting-edge enterprise applications tailored to the unique needs of mortgage banks and private colleges…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Strong evidence “Custom Software Solutions helps clients create the ideal customer experience, across the entire customer journey.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Strong evidence “Irvine Software Company is a custom software development and technology consulting firm serving SMBs, mid-market companies, and Fortune 500 organizations.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Strong evidence “topLingo Development, Inc.( headquartered in Irvine, CA is a leader in Web-based software applications for the technology, financial, entertainment/media and other industries…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Indirect evidence “SpringShine Consulting offers the best-in-the-class technology services to small and medium businesses across the world.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Strong evidence “iCreative is a full-service digital creative agency specializing in custom web design & development, SEO, social media marketing, and brand strategy that turns digital presences…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Strong evidence “At AeriTech, we are driven to deliver custom software solutions to captivate users and create a technological boost to advance your business.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Indirect evidence “OS Ignite is a boutique development, design, and digital marketing agency based in Irvine & Long Beach, CA.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Strong evidence “We are a web design and digital marketing agency that crafts custom websites for forward-thinking brands and businesses.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Partial evidence “SKS Creative is a Web and Mobile app development agency located in Orange County California.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Indirect evidence “At Illumisight, we are "The Architects of Online Awesomeness," specializing in crafting bespoke digital solutions for micro and small businesses.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Partial evidence “Bold Array is a web design and development firm who focuses on pushing technology and creativity to their limits, delivering cutting-edge solutions with an unrivaled level of…” 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 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 71 custom web software agencies based in Irvine, United States
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Custom web software agencies based in Irvine, United States at a glance
As of Sep 24, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Irvine, so it is reported there. Company counts and contact totals on this page are exact for Irvine, over 71 companies.
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.
- What qualifies
- Companies headquartered in Irvine, United States 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. Companies headquartered outside Irvine 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, 446 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 metro in the United States
- Custom web software agencies in New York497
- Custom web software agencies in Austin252
- Custom web software agencies in Los Angeles194
- Custom web software agencies in Houston185
- Custom web software agencies in Chicago174
- Custom web software agencies in Miami166
- Custom web software agencies in Sheridan164
- Custom web software agencies in San Francisco133
- Custom web software agencies in Atlanta129
- Custom web software agencies in Dallas122
- Custom web software agencies in San Diego117
- Custom web software agencies in Denver110
- Custom web software agencies in Portland86
- Custom web software agencies in Seattle83
- Custom web software agencies in Boston77
- Custom web software agencies in Wilmington77
- Custom web software agencies in Orlando74
- Custom web software agencies in Irvine71
- Custom web software agencies in Las Vegas71
- Custom web software agencies in Tampa71
- Custom web software agencies in Minneapolis64
- Custom web software agencies in Phoenix64
- Custom web software agencies in Charlotte56
- Custom web software agencies in Washington54
- Custom web software agencies in San Antonio53
- Custom web software agencies in Philadelphia48
- Custom web software agencies in Irving43
- Custom web software agencies in Raleigh43
- Custom web software agencies in San Jose43
- Custom web software agencies in Columbus41
- Custom web software agencies in Nashville41
- Custom web software agencies in Plano41
- Custom web software agencies in Dover40
- Custom web software agencies in Cincinnati39
- Custom web software agencies in Frisco39
- Custom web software agencies in Albuquerque38
- Custom web software agencies in Fort Lauderdale38
- Custom web software agencies in Sacramento38
- Custom web software agencies in Jacksonville37
- Custom web software agencies in Richmond37
- Custom web software agencies in St Petersburg37
- Custom web software agencies in Scottsdale36
- Custom web software agencies in Alpharetta35
- Custom web software agencies in Indianapolis35
- Custom web software agencies in Brooklyn32
- Custom web software agencies in New York City32
- Custom web software agencies in Arlington31
- Custom web software agencies in Newark30
- Custom web software agencies in Salt Lake City30
- Custom web software agencies in Springfield30
- Custom web software agencies in Columbia29
- Custom web software agencies in Boulder28
- Custom web software agencies in Cheyenne28
- Custom web software agencies in Cleveland28
- Custom web software agencies in Middletown28
- Custom web software agencies in Baltimore27
- Custom web software agencies in Birmingham27
- Custom web software agencies in Louisville27
- Custom web software agencies in Pittsburgh27
- Custom web software agencies in St. Louis27
- Custom web software agencies in Sunnyvale27
- Custom web software agencies in Albany26
- Custom web software agencies in Boca Raton26
- Custom web software agencies in Kansas City26
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 based in Irvine, United States?
RevenueBase identified 71 custom web software agencies headquartered in Irvine, 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?
Sigma Infosolutions LTD, headquartered in Irvine, tops this list with the largest team on record.
Which city has the most custom web software agencies?
New York leads with 497 headquartered companies, followed by Austin (252) and Los Angeles (194).
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 446 verified decision-maker contacts tracked across these 71 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.
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