Company lists · Data refreshed September 2026

Top 25 Custom software development consulting firms based in Irvine, United States

Name: Custom software development consulting firms based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 178 companies tracked

RevenueBase identified 178 custom software development consulting firms headquartered in Irvine, United States as of September 2026 and tracks 4,700 professional contacts across them, including 1,300 with verified work emails. Across the United States, New York is the largest hub for this category (1,174 companies); Irvine has 178.

This list covers custom software development consulting firms 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 24, 2026 86% judged on-target in blind review

178Companies

4,700Contacts tracked

1,300Verified emails

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The 25 largest custom software development consulting firms based in Irvine, United States

Ranked by team size

Top 25 of 178 custom software development consulting firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development consulting 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	Preludesys	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	699 contacts →
	Indirect evidence “PreludeSys is a global technology solutions provider since 1998.” Source: RevenueBase Database · checked Sep 24, 2026
2	Sigma Infosolutions LTD	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	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, 2026
3	Authority Partners	Strong evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	367 contacts →
	Strong evidence “Authority Partners is a global technology strategy consulting and custom software development company.” Source: RevenueBase Database · checked Sep 24, 2026
4	Foothill Technology Solutions, LLC	Strong evidence	Irvine, United StatesHQ checked Sep 24, 2026	201-500	318 contacts →
	Strong evidence “Foothill Technology Solutions is a Software development company.” Source: RevenueBase Database · checked Sep 24, 2026
5	Xavor Corporation	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	263 contacts →
	Indirect evidence “Xavor has been a trusted technology partner to Fortune 500s, SMEs, and startups for over 3 decades.” Source: RevenueBase Database · checked Sep 24, 2026
6	OP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	170 contacts →
	Partial evidence “OP is one of the fastest-growing technology consulting and solutions companies in the U.S.” Source: RevenueBase Database · checked Sep 24, 2026
7	Neelblue Technologies	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	158 contacts →
	Partial evidence “NeelBlue Technologies provides IT consulting and technical expertise to all its clients across the globe.” Source: RevenueBase Database · checked Sep 24, 2026
8	Xcentium	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	138 contacts →
	Indirect evidence “XCentium is a digital consultancy focused on helping enterprises align their technology strategy with business goals to drive transformation, innovation, and sustainable growth.” Source: RevenueBase Database · checked Sep 24, 2026
9	Blytheco	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	133 contacts →
	Indirect evidence “For over 45 years, Blytheco has been the transformation partner of choice for over companies nationwide.” Source: RevenueBase Database · checked Sep 24, 2026
10	Ejamerica	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	132 contacts →
	Partial evidence “We provide Digital Application Services, Cyber Security Services, IT Consulting Services, Modern End-User Services, Data Center and Cloud Services and IT Staffing services.” Source: RevenueBase Database · checked Sep 24, 2026
11	Prophecy Technologies	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	118 contacts →
	Partial evidence “At Prophecy Technologies, we specialize in providing advanced software solutions that help organizations harness new opportunities and drive sustained growth.” Source: RevenueBase Database · checked Sep 24, 2026
12	Datanetiix Solutions INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	111 contacts →
	Strong evidence “Datanetiix is a One-Stop-Solutions provider for your software development, business analytics & IT needs.” Source: RevenueBase Database · checked Sep 24, 2026
13	GDR Group, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	91 contacts →
	Indirect evidence “Who is GDR?” Source: RevenueBase Database · checked Sep 24, 2026
14	DNA Micro	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	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, 2026
15	Intratek Computer INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	70 contacts →
	Indirect evidence “Intratek is a premier provider of IT services, solutions and support.” Source: RevenueBase Database · checked Sep 24, 2026
16	First American Software Solutions Group	Strong evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	11-50	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, 2026
17	Isol Systems Pvt. LTD	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	11-50	49 contacts →
	Indirect evidence “Elegant solutions solve the problem in the simplest and most effective manner.” Source: RevenueBase Database · checked Sep 24, 2026
18	Qodic Technosoft	Strong evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	11-50	43 contacts →
	Strong evidence “Qodic TechnoSoft is a rapidly growing IT services company, specializing in Chrome extension development, web applications, and custom software solutions.” Source: RevenueBase Database · checked Sep 24, 2026
19	Infoswift Corp	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	41 contacts →
	Indirect evidence “InfoSwift Corp is a trusted technology partner with over 15 years of experience delivering innovative IT solutions to clients across the United States.” Source: RevenueBase Database · checked Sep 24, 2026
20	Connex Info Systems, INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	36 contacts →
	Strong evidence “Connex Info Systems is a global IT services company specialized in developing custom software applications and providing consulting services around the world.” Source: RevenueBase Database · checked Sep 24, 2026
21	Luminous TEC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	11-50	35 contacts →
	Indirect evidence “In the contemporary scenario, it is essential for a business firm to have a strong online presence.” Source: RevenueBase Database · checked Sep 24, 2026
22	Codiot Technologies LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	31 contacts →
	Indirect evidence “Founded in 2015, Codiot Technologies LLP has emerged as a leading digital transformation company and a certified Salesforce partner, boasting a team of over 70 skilled…” Source: RevenueBase Database · checked Sep 24, 2026
23	Virstack	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	31 contacts →
	Partial evidence “Virstack helps businesses automate operations, improve customer experiences, and bring innovative digital products to market faster and cost-effectively.” Source: RevenueBase Database · checked Sep 24, 2026
24	Sprintfwd	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	11-50	26 contacts →
	Indirect evidence “Our in-house engineers specialize in crafting seamless web, mobile, and OTT solutions.” Source: RevenueBase Database · checked Sep 24, 2026
25	Sunvera Digital & AI	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	11-50	25 contacts →
	Partial evidence “Sunvera Software builds AI that actually works in the real world.” Source: RevenueBase Database · checked Sep 24, 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: custom software development consulting 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 custom software development consulting firms.
Partial evidence: Its own public description names part of custom software development consulting firms, 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 consulting 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 178 custom software development consulting firms based in Irvine, United States

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Custom software development consulting firms based in Irvine, United States at a glance

As of Sep 24, 2026

27.7%Verified-email coverage

26.4Average contacts per company

11-50Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 178 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 software development consulting 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 Irvine, United States whose own description of what they do matches “custom software development consulting 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 custom software development consulting 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 custom software development consulting firms, 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, 1,300 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 development consulting firms by metro in the United States

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 consulting 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 custom software development consulting firms are there based in Irvine, United States?

RevenueBase identified 178 custom software development consulting firms 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?

Preludesys, headquartered in Irvine, tops this list with the largest team on record.

Which city in the United States has the most custom software development consulting firms?

New York leads the United States with 1,174 headquartered companies, followed by Austin (678) and Houston (589). Irvine has 178.

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 1,300 verified decision-maker contacts tracked across these 178 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.