Company lists · Data refreshed September 2026

Top 25 Full-service consulting firms based in Irvine, United States

Name: Full-service 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 30, 2026 100 companies tracked

RevenueBase identified 100 company matches for full-service consulting firms associated with Irvine, United States as of September 2026 and tracks 2,988 professional contacts across them, including 1,784 with verified work emails. Across the United States, New York is the largest hub for this category (935 companies); Irvine has 100.

This list covers company matches for full-service consulting firms associated with Irvine, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 30, 2026 How this list was built

100Companies

2,988Contacts tracked

1,784Verified emails

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The 25 largest full-service consulting firms based in Irvine, United States

Ranked by team size

Top 25 of 100 company matches for full-service consulting firms based in Irvine, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Trace3	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,345 contacts →
	Exact match “Trace3 delivers business transformation.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Interwest Consulting Group	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	201-500	221 contacts →
	Exact match “Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	IDS Group, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	205 contacts →
	Exact match “IDS is an award-winning engineering and architectural firm offering multidisciplinary consulting services through our staff of 90 professionals.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Haskell & White LLP	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	133 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Blytheco	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	133 contacts →
	Exact match “For over 45 years, Blytheco has been the transformation partner of choice for over companies nationwide.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Trivista	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	107 contacts →
	Exact match “TriVista is a technology and operations consulting firm that partners with business and private equity leaders to improve performance, strengthen supply chains, and accelerate…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Tk1sc	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	201-500	105 contacts →
	Exact match “We are now part of WSP, a world leading, multi-disciplinary consulting firm.#BecomingWSP #WeAreWSP” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	West Coast Consulting	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	201-500	87 contacts →
	Exact match “West Coast Consulting is a privately held boutique consulting firm formed in 1998, specializing in providing Information Technology solutions and Outsourcing services.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	RJI Cpas	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	59 contacts →
	Exact match “RJI CPAs is a full-service accounting and consulting firm based in Irvine, California.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Intueor Consulting, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	52 contacts →
	Exact match “Intueor specializes in Strategy, Operations & Business Productivity advisory work.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Compassx Group	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	11-50	47 contacts →
	Exact match “CompassX is a local-model consulting firm headquartered in SoCal.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	MLC And Associates	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	11-50	38 contacts →
	Exact match “MLC and Associates is an award-winning, world-class management consulting firm, recognized for helping companies in every industry with business continuity, corporate performance…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Nexvisionix	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	27 contacts →
	Exact match “At Nexvisionix, we specialize in driving Strategy and Execution excellence, leveraging cutting-edge AI and software to guide global organizations towards breakthrough business…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Connexus HUB	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	11-50	20 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Vargasandrews	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	11-50	20 contacts →
	Exact match “VargasAndrews is an international professional services firm specializing in business transformations and turnarounds, with a dedicated focus on Outsourced accounting solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	National Engineering & Consulting, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	20 contacts →
	Exact match “National Engineering and Consulting, Inc.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Wincorp Solutions	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	18 contacts →
	Exact match “Founded in 2009, WinCorp Solutions, headquartered in Irvine, CA, was established by former publicly held company executives.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Matrixpoint Consulting	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	11-50	9 contacts →
	Exact match “MatrixPoint Consulting helps brand executives in QSR, CPG, and retail grow through marketing they can measure.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	The Saros Group	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	11-50	8 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Montfichet & Company	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	51-200	7 contacts →
	Exact match “Montfichet is a management consulting company offering clients a focused range of fully integrated solutions in areas that include strategic planning, marketing automation, sales…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	International Executive Consulting, LLC	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	1-10	5 contacts →
	Exact match “Your Vision, Our Expertise - A Prosperous Future Built Together At International Executive Consulting, we specialize in driving business transformation and organizational change…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Daneco Group INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	The Fantastic Labs	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	11-50	4 contacts →
	Exact match “Empower Your Business Potential with The Fantastic Labs!” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Hüther Consulting	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	1-10	4 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Transparity Group	Exact match	Irvine, CA, United StatesHQ recorded Sep 30, 2026	1-10	3 contacts →
	Exact match “Who we are The Transparity Group is a team of trusted partners providing consulting services to individuals and small business in the areas of Career/Executive Coaching…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “full-service consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 100 full-service consulting firms based in Irvine, United States

See the full list, filter by size, metro and specialty, and access 1,784 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Full-service consulting firms based in Irvine, United States at a glance

As of Sep 30, 2026

59.7%Verified-email coverage

29.9Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 100 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Irvine, United States whose business descriptions match “full-service consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,784 professional contacts with verified work emails across the full matched dataset. 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 30, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Full-service consulting firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “full-service consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many full-service consulting firms are there based in Irvine, United States?

RevenueBase identified 100 company matches for full-service consulting firms associated with Irvine, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Trace3 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most full-service consulting firms?

New York leads the United States with 935 company records, followed by Chicago (496) and Atlanta (479). Irvine has 100.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,784 professional contacts with verified work emails tracked across these 100 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 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 SmartSearch, 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.