Company lists · Data refreshed September 2026

Top 25 Tier one consulting firms based in Irvine, United States

Name: Tier one 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 29, 2026 50 companies tracked

RevenueBase identified 50 tier one consulting firms headquartered in Irvine, United States as of September 2026 and tracks 3,050 professional contacts across them, including 1,791 with verified work emails. Across the United States, New York is the largest hub for this category (439 companies); Irvine has 50.

This list covers tier one 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 29, 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 29, 2026 86% judged on-target in blind review

50Companies

3,050Contacts tracked

1,791Verified emails

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The 25 largest tier one consulting firms based in Irvine, United States

Ranked by team size

Top 25 of 50 tier one consulting firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to tier one 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 29, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 29, 2026
2	Neudesic, An IBM Company	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,239 contacts →
	Indirect evidence “Neudesic, an IBM Company, is a global professional services firm dedicated to advancing businesses with our Microsoft technology expertise.” Source: RevenueBase Database · checked Sep 29, 2026
3	Trivista	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	107 contacts →
	Partial evidence “TriVista is a technology and operations consulting firm that partners with business and private equity leaders to improve performance, strengthen supply chains, and accelerate…” Source: RevenueBase Database · checked Sep 29, 2026
4	Intueor Consulting, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	52 contacts →
	Indirect evidence “Intueor specializes in Strategy, Operations & Business Productivity advisory work.” Source: RevenueBase Database · checked Sep 29, 2026
5	MLC And Associates	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	38 contacts →
	Partial evidence “MLC and Associates is an award-winning, world-class management consulting firm, recognized for helping companies in every industry with business continuity, corporate performance…” Source: RevenueBase Database · checked Sep 29, 2026
6	Nexvisionix	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 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 29, 2026
7	Connexus HUB	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect 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 29, 2026
8	Vargasandrews	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 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 29, 2026
9	Mentor Global Consultants	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	16 contacts →
	Partial evidence “MENTOR is a management consulting firm that helps organizations to improve performance and reach their full potential, by offering a unique combination of business solutions.” Source: RevenueBase Database · checked Sep 29, 2026
10	The Saros Group	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	8 contacts →
	Partial evidence “We "fill an ever-growing value gap" in the consulting marketplace between strategy and commodity delivery services at cost significantly lower than big 4 services for like…” Source: RevenueBase Database · checked Sep 29, 2026
11	Montfichet & Company	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	7 contacts →
	Partial evidence “Montfichet is a management consulting company offering clients a focused range of fully integrated solutions in areas that include strategic planning, marketing automation, sales…” Source: RevenueBase Database · checked Sep 29, 2026
12	International Executive Consulting, LLC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “Your Vision, Our Expertise - A Prosperous Future Built Together At International Executive Consulting, we specialize in driving business transformation and organizational change…” Source: RevenueBase Database · checked Sep 29, 2026
13	Hüther Consulting	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “About Huther Consulting: A Multidisciplinary Global Hub At Huther Consulting, we believe that complex international projects require more than just a single point of view.” Source: RevenueBase Database · checked Sep 29, 2026
14	Velocityone Group	Partial evidence	Irvine, United StatesHQ checked Sep 29, 2026	11-50	3 contacts →
	Partial evidence “VelocityOne Group is a global business consulting firm with offices in all major cities.” Source: RevenueBase Database · checked Sep 29, 2026
15	PROXC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	3 contacts →
	Partial evidence “PROXC is a key global player in management consulting and advisory services field.” Source: RevenueBase Database · checked Sep 29, 2026
16	Agnitios, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	3 contacts →
	Partial evidence “Agnitios is a management and technology consulting firm that works with clients to deliver results that endure.” Source: RevenueBase Database · checked Sep 29, 2026
17	Blue Wave Technology And Management Consulting	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Blue Wave helps clients navigate in today's complex business world.” Source: RevenueBase Database · checked Sep 29, 2026
18	Tag, Inc. Solutions Consulting	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “We leverage a depth and diversity of experience and relationships accumulated over 25 years of consulting, contracting and manufacturing in the enterprise systems integration…” Source: RevenueBase Database · checked Sep 29, 2026
19	SCMSP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	1 contacts →
	Partial evidence “SCMSP is a leading Certified SBA 8(a) and Minority Owned Business (DBE, SBE, and CPUC Certified), Management Consulting firm that offers business and technology solutions to…” Source: RevenueBase Database · checked Sep 29, 2026
20	Oberman Associates INC	Partial evidence	Irvine, United StatesHQ checked Sep 29, 2026	11-50	1 contacts →
	Partial evidence “Strategy consulting, management and M&A advisory services to companies with critical business transition requirements.” Source: RevenueBase Database · checked Sep 29, 2026
21	Artisan Business Consultants	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	1 contacts →
	Indirect evidence “Listening.” Source: RevenueBase Database · checked Sep 29, 2026
22	Invenz, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “Invenz Inc.” Source: RevenueBase Database · checked Sep 29, 2026
23	Rotate, LLC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Strong evidence “A technology & consulting company created to make the world a better place one project at a time.” Source: RevenueBase Database · checked Sep 29, 2026
24	Heuristic Advisors	Partial evidence	Irvine, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “Heuristic Advisors provides management and restructuring consulting services for the world’s leading manufacturing, consumer products, and technology companies.” Source: RevenueBase Database · checked Sep 29, 2026
25	Alignmt	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “ALIGNMT LLC is a leading provider of business consulting, analysis and outsourcing services.” Source: RevenueBase Database · checked Sep 29, 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: tier one 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 tier one consulting firms.
Partial evidence: Its own public description names part of tier one consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tier one 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 50 tier one consulting firms based in Irvine, United States

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Tier one consulting firms based in Irvine, United States at a glance

As of Sep 29, 2026

58.7%Verified-email coverage

61.0Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 50 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 tier one 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 “tier one 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 tier one 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 tier one 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, 1,791 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 29, 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.

Tier one 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 tier one 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 tier one consulting firms are there based in Irvine, United States?

RevenueBase identified 50 tier one 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 tier one consulting firms?

New York leads the United States with 439 headquartered companies, followed by Chicago (243) and Atlanta (203). Irvine has 50.

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 1,791 verified decision-maker contacts tracked across these 50 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 29, 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.