Company lists · Data refreshed September 2026

Top 24 IT consulting firms based in Irvine, United States

Name: IT 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 4, 2026 155 companies tracked

RevenueBase identified 155 IT consulting firms headquartered in Irvine, United States as of September 2026 and tracks 2,951 professional contacts across them, including 949 with verified work emails. Across the United States, New York is the largest hub for this category (1,002 companies); Irvine has 155.

This list covers IT 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 4, 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 4, 2026 86% judged on-target in blind review

155Companies

2,951Contacts tracked

949Verified emails

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The 24 largest IT consulting firms based in Irvine, United States

Ranked by team size

Top 24 of 155 IT consulting firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to IT 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	Foothill Technology Solutions, LLC	Indirect evidence	Irvine, United StatesHQ checked Sep 4, 2026	201-500	309 contacts →
	Indirect evidence “Foothill Technology Solutions is a Software development company.” Source: RevenueBase Database · checked Sep 4, 2026
2	Neelblue Technologies	Strong evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	158 contacts →
	Strong evidence “NeelBlue Technologies provides IT consulting and technical expertise to all its clients across the globe.” Source: RevenueBase Database · checked Sep 4, 2026
3	Xcentium	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	201-500	139 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 4, 2026
4	Ejamerica	Strong evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	501-1,000	129 contacts →
	Strong 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 4, 2026
5	O2 Technologies,inc	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	100 contacts →
	Indirect evidence “O2 Technology attracts imaginative citizens from all types of backgrounds, bringing together excitement and new dreams to meet challenges and appreciate their talent.” Source: RevenueBase Database · checked Sep 4, 2026
6	West Coast Consulting	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	201-500	88 contacts →
	Partial evidence “West Coast Consulting is a privately held boutique consulting firm formed in 1998, specializing in providing Information Technology solutions and Outsourcing services.” Source: RevenueBase Database · checked Sep 4, 2026
7	Indusa	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	501-1,000	81 contacts →
	Partial evidence “Synoptek (previously Indusa) is a global systems integrator and managed IT services provider, offering comprehensive IT management and consultancy services to organizations…” Source: RevenueBase Database · checked Sep 4, 2026
8	Abotts Consulting INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	64 contacts →
	Strong evidence “ABOTTS is a consulting and staffing services company headquartered in Irvine, California, focused on meeting both IT and non-IT needs of our clients.” Source: RevenueBase Database · checked Sep 4, 2026
9	Red8	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	201-500	59 contacts →
	Partial evidence “Red8, a division of Insight Capital Solutions, is a leading IT solutions provider helping organizations solve complex technology challenges and accelerate digital transformation.” Source: RevenueBase Database · checked Sep 4, 2026
10	Intueor Consulting, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	51 contacts →
	Indirect evidence “Intueor specializes in Strategy, Operations & Business Productivity advisory work.” Source: RevenueBase Database · checked Sep 4, 2026
11	SMS Datacenter	Strong evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	50 contacts →
	Strong evidence “Founded in 1982, SMS is a leading provider of Managed Services, IT Strategy & Consulting, Software Development & Analytics, Private Managed Cloud, and Colocation Services.” Source: RevenueBase Database · checked Sep 4, 2026
12	T-Force Group	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	201-500	39 contacts →
	Partial evidence “T-Force is a Premier telecommunication technology Consulting and Services Company offering innovative solutions, helping customers design, engineer, integrate and maintain…” Source: RevenueBase Database · checked Sep 4, 2026
13	Airgap Labs LLC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	11-50	27 contacts →
	Indirect evidence “Fostering Client growth and success.” Source: RevenueBase Database · checked Sep 4, 2026
14	Right Click, INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	11-50	27 contacts →
	Strong evidence “Right Click is an Orange County based IT Consulting firm.” Source: RevenueBase Database · checked Sep 4, 2026
15	Nexvisionix	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	27 contacts →
	Indirect evidence “At Nexvisionix, we specialize in driving Strategy and Execution excellence, leveraging cutting-edge AI and software to guide global organizations towards breakthrough business…” Source: RevenueBase Database · checked Sep 4, 2026
16	Muverity Consultancy Services	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	11-50	25 contacts →
	Partial evidence “muVerity is an information technology consulting and business solutions company that aspires to be the helm in your digital transformation journey.” Source: RevenueBase Database · checked Sep 4, 2026
17	Allied Consultants	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	15 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 4, 2026
18	Consiliant Technologies	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	11-50	14 contacts →
	Indirect evidence “Consiliant Technologies was founded on the belief that organizations should realize greater business value from their technology investments.” Source: RevenueBase Database · checked Sep 4, 2026
19	Flying Buttress	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	11-50	13 contacts →
	Partial evidence “Flying Buttress is the leading provider of IT solutions for the Architectural and Engineering & Design industries.” Source: RevenueBase Database · checked Sep 4, 2026
20	S90 Techops	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	1-10	9 contacts →
	Partial evidence “We design and implement strategic IT solutions & services for dynamic businesses in Orange County.” Source: RevenueBase Database · checked Sep 4, 2026
21	Helia Systems	Partial evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	11-50	9 contacts →
	Partial evidence “We are a dynamic and forward-thinking software consulting business committed to driving digital transformation for our clients.” Source: RevenueBase Database · checked Sep 4, 2026
22	Emergent Data	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	11-50	9 contacts →
	Indirect evidence “Emergent Data is a global consultancy that helps clients drive change across the entire data and software ecosystem.” Source: RevenueBase Database · checked Sep 4, 2026
23	Entrust Software Development	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	9 contacts →
	Indirect evidence “Entrust Software Development, also known as ESDI Software Development US, is a global development company with offices in the United States and India.” Source: RevenueBase Database · checked Sep 4, 2026
24	Saguna Consulting Services LLC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	51-200	8 contacts →
	Indirect evidence “We are a company of builders, visionaries and strategists.” Source: RevenueBase Database · checked Sep 4, 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: IT 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 IT consulting firms.
Partial evidence: Its own public description names part of IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT 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 24 of 155 IT consulting firms based in Irvine, United States

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IT consulting firms based in Irvine, United States at a glance

As of Sep 4, 2026

32.2%Verified-email coverage

19.0Average contacts per company

11-50Median size (employees)

Sep 4, 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 155 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 IT 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 “IT 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 IT 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 IT 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, 949 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 4, 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.

IT 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 IT 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 IT consulting firms are there based in Irvine, United States?

RevenueBase identified 155 IT 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?

Foothill Technology Solutions, LLC, headquartered in Irvine, tops this list with the largest team on record.

Which city in the United States has the most IT consulting firms?

New York leads the United States with 1,002 headquartered companies, followed by Houston (627) and Dallas (504). Irvine has 155.

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 949 verified decision-maker contacts tracked across these 155 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 4, 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.