Company lists · Data refreshed September 2026

Top 25 IT advisory consulting firms based in Irvine, United States

Name: IT advisory 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 26, 2026 102 companies tracked

RevenueBase identified 102 IT advisory consulting firms headquartered in Irvine, United States as of September 2026 and tracks 4,889 professional contacts across them, including 2,248 with verified work emails. Across the United States, New York is the largest hub for this category (783 companies); Irvine has 102.

This list covers IT advisory 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 26, 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 26, 2026 86% judged on-target in blind review

102Companies

4,889Contacts tracked

2,248Verified emails

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The 25 largest IT advisory consulting firms based in Irvine, United States

Ranked by team size

Top 25 of 102 IT advisory consulting firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to IT advisory 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	Trace3	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 26, 2026
2	Preludesys	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	501-1,000	699 contacts →
	Indirect evidence “PreludeSys is a global technology solutions provider since 1998.” Source: RevenueBase Database · checked Sep 26, 2026
3	Technologent	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	201-500	492 contacts →
	Indirect evidence “Technologent is a women-owned, WBENC-certified and global provider of Information Technology solutions and services for Fortune companies.” Source: RevenueBase Database · checked Sep 26, 2026
4	Authority Partners	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	501-1,000	367 contacts →
	Partial evidence “Authority Partners is a global technology strategy consulting and custom software development company.” Source: RevenueBase Database · checked Sep 26, 2026
5	Tevora	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	201-500	199 contacts →
	Indirect evidence “Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Source: RevenueBase Database · checked Sep 26, 2026
6	OP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 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 26, 2026
7	Mclaren Strategic Solutions MSS	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	51-200	153 contacts →
	Indirect evidence “McLaren Strategic Solutions (MSS) is the next generation technology services and digital transformation company.” Source: RevenueBase Database · checked Sep 26, 2026
8	Xcentium	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 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 26, 2026
9	Haskell & White LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	51-200	133 contacts →
	Partial evidence “Haskell & White LLP is one of the largest independently owned accounting, auditing and tax consulting firms in Southern California, specializing in servicing public and private…” Source: RevenueBase Database · checked Sep 26, 2026
10	Ejamerica	Strong evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	501-1,000	132 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 26, 2026
11	Squar Milner	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	501-1,000	84 contacts →
	Partial evidence “Squar Milner is one of the nation’s 40 largest accounting firms as well as one of the largest independent accounting and advisory firms in California.” Source: RevenueBase Database · checked Sep 26, 2026
12	Red8	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	201-500	60 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 26, 2026
13	Intueor Consulting, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	51-200	52 contacts →
	Partial evidence “Intueor specializes in Strategy, Operations & Business Productivity advisory work.” Source: RevenueBase Database · checked Sep 26, 2026
14	Kbquest	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	51-200	51 contacts →
	Partial evidence “As a global digital transformation consulting firm with more than 1,300 professionals, specializing in AI Solutions, Cloud, Automation and Data technologies.” Source: RevenueBase Database · checked Sep 26, 2026
15	Blythe Global Advisors	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	51-200	51 contacts →
	Partial evidence “Blythe Global Advisors is a full-spectrum accounting advisory firm with a difference.” Source: RevenueBase Database · checked Sep 26, 2026
16	Next IT Solutions	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	11-50	28 contacts →
	Partial evidence “Protecting & Optimizing Orange County and Nationwide Businesses for 14+ Years IT and Cyber Support in Irvine, CA Next IT Solutions partners with organizations in delivering state…” Source: RevenueBase Database · checked Sep 26, 2026
17	Airgap Labs LLC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	11-50	27 contacts →
	Indirect evidence “Fostering Client growth and success.” Source: RevenueBase Database · checked Sep 26, 2026
18	Right Click, INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	11-50	27 contacts →
	Strong evidence “Right Click is an Orange County based IT Consulting firm.” Source: RevenueBase Database · checked Sep 26, 2026
19	Nexvisionix	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 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 26, 2026
20	Bharmal & Associates, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	1-10	23 contacts →
	Indirect evidence “We are no ordinary accounting firm.” Source: RevenueBase Database · checked Sep 26, 2026
21	Soranotech	Partial evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	51-200	22 contacts →
	Partial evidence “SoranoTech is a new-age consulting company with a singular focus: to help our clients with their digital transformation powered by human and artificial intelligence.” Source: RevenueBase Database · checked Sep 26, 2026
22	Connexus HUB	Strong evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	11-50	20 contacts →
	Strong evidence “Connexus Hub is a boutique business and technology advisory firm that specializes in CIO advisory, IT PMO support, and business transformation services, training, and operations…” Source: RevenueBase Database · checked Sep 26, 2026
23	Vargasandrews	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	11-50	20 contacts →
	Indirect evidence “VargasAndrews is an international professional services firm specializing in business transformations and turnarounds, with a dedicated focus on Outsourced accounting solutions.” Source: RevenueBase Database · checked Sep 26, 2026
24	Dfnd Security, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 2026	51-200	15 contacts →
	Indirect evidence “Enterprise clients have counted on DFND Security, Inc.” Source: RevenueBase Database · checked Sep 26, 2026
25	Consiliant Technologies	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 26, 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 26, 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 advisory 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 advisory consulting firms.
Partial evidence: Its own public description names part of IT advisory 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 advisory 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 102 IT advisory consulting firms based in Irvine, United States

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

As of Sep 26, 2026

46.0%Verified-email coverage

47.9Average contacts per company

11-50Median size (employees)

Sep 26, 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 102 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 advisory 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 advisory 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 advisory 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 advisory 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, 2,248 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 26, 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 advisory 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 advisory 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 advisory consulting firms are there based in Irvine, United States?

RevenueBase identified 102 IT advisory 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?

Trace3, headquartered in Irvine, tops this list with the largest team on record.

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

New York leads the United States with 783 headquartered companies, followed by Houston (403) and Chicago (396). Irvine has 102.

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 2,248 verified decision-maker contacts tracked across these 102 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 26, 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.