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Company lists · Data refreshed September 2026

Top 25 Consultancy agencies based in Irvine, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 128 companies tracked

RevenueBase identified 128 consultancy agencies headquartered in Irvine, United States as of September 2026 and tracks 802 professional contacts across them, including 371 with verified work emails. New York is the largest hub.

This list covers consultancy agencies 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
128Companies
802Contacts tracked
371Verified emails
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The 25 largest consultancy agencies based in Irvine, United States

Ranked by team size
Top 25 of 128 consultancy agencies 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 consultancy agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1
Interwest Consulting Group
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 2026201-500221 contacts →

Indirect evidence

“Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.”

Source: RevenueBase Database · checked Sep 24, 2026
2
Intueor Consulting, INC
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202651-20052 contacts →

Indirect evidence

“Intueor specializes in Strategy, Operations & Business Productivity advisory work.”

Source: RevenueBase Database · checked Sep 24, 2026
3
Skinner Fouch & Olson LLP
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-5044 contacts →

Indirect evidence

“Our purpose is to add value to the business of our clientele through transactional specific and organizational business advisory services.”

Source: RevenueBase Database · checked Sep 24, 2026
4
MLC And Associates
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-5038 contacts →

Indirect 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 24, 2026
5
Nexvisionix
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202651-20027 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 24, 2026
6
The Carrera Agency
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202651-20022 contacts →

Indirect evidence

“The Carrera Agency is a Talent Management Agency specializing in information technology, digital strategy and design.”

Source: RevenueBase Database · checked Sep 24, 2026
7
Connexus HUB
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-5020 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 24, 2026
8
Mentor Global Consultants
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-5016 contacts →

Indirect 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 24, 2026
9
Matrixpoint Consulting
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-509 contacts →

Indirect evidence

“MatrixPoint Consulting helps brand executives in QSR, CPG, and retail grow through marketing they can measure.”

Source: RevenueBase Database · checked Sep 24, 2026
10
Fatbee Studio
Strong evidenceIrvine, CA, United StatesHQ checked Sep 24, 202651-2009 contacts →

Strong evidence

“FatBee Studio is a full service brand consultancy agency.”

Source: RevenueBase Database · checked Sep 24, 2026
11
Take Ctrl
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 20261-107 contacts →

Indirect evidence

“Consulting - We provide business consulting to small businesses in the Orange County area.”

Source: RevenueBase Database · checked Sep 24, 2026
12
International Executive Consulting, LLC
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 20261-105 contacts →

Indirect 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 24, 2026
13
Copperpillar Consulting, INC
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-505 contacts →

Indirect evidence

“Copperpillar excels in the telecommunications industry with core services that enable our clients to meet fast paced demands and deadlines.”

Source: RevenueBase Database · checked Sep 24, 2026
14
BIG Daddy Media
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-505 contacts →

Indirect evidence

“Big Daddy Media is digital subject expert in web usability, SEO/SEM, creative design, technology and internet best practices.”

Source: RevenueBase Database · checked Sep 24, 2026
15
Antidote
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-504 contacts →

Indirect evidence

“We were founded with the intent to be the Antidote to a Client’s problem.”

Source: RevenueBase Database · checked Sep 24, 2026
16
Fluence Brands
Strong evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-504 contacts →

Strong evidence

“Fluence Brands is a brand consultancy that works where brand and commercial strategy converge: market entry, portfolio architecture, investor positioning, organizational…”

Source: RevenueBase Database · checked Sep 24, 2026
17
Professional Corporate Consultants
Strong evidenceIrvine, CA, United StatesHQ checked Sep 24, 2026201-5004 contacts →

Strong evidence

“Professional Corporate Consultants is a full-service project consulting firm with a reputation for delivering customized solutions to meet the diverse needs of public and private…”

Source: RevenueBase Database · checked Sep 24, 2026
18
The Fantastic Labs
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-504 contacts →

Indirect evidence

“Empower Your Business Potential with The Fantastic Labs!”

Source: RevenueBase Database · checked Sep 24, 2026
19
Hüther Consulting
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 20261-104 contacts →

Indirect 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 24, 2026
20
JPC & CO
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 20261-104 contacts →

Indirect evidence

“A full-service boutique marketing and advertising consulting firm providing brand identity, and transmedia marketing solutions.”

Source: RevenueBase Database · checked Sep 24, 2026
21
Growthport Partners, INC
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202611-503 contacts →

Indirect evidence

“The legal community has priced itself out of the mid-sized business market and it has no incentive to offer, let alone deliver, quality preventive legal services either in the…”

Source: RevenueBase Database · checked Sep 24, 2026
22
Transparity Group
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 20261-103 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 24, 2026
23
Velocityone Group
Indirect evidenceIrvine, United StatesHQ checked Sep 24, 202611-503 contacts →

Indirect evidence

“VelocityOne Group is a global business consulting firm with offices in all major cities.”

Source: RevenueBase Database · checked Sep 24, 2026
24
G&c Technical Services, LLC
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 20261-103 contacts →

Indirect evidence

“G&C Technical Services, located in Irvine, California, offers superior IT consulting and support to businesses throughout Orange County and surrounding areas.”

Source: RevenueBase Database · checked Sep 24, 2026
25
PROXC
Indirect evidenceIrvine, CA, United StatesHQ checked Sep 24, 202651-2003 contacts →

Indirect evidence

“PROXC is a key global player in management consulting and advisory services field.”

Source: RevenueBase Database · checked Sep 24, 2026

Showing 25 of 128 consultancy agencies based in Irvine, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 371 reachable decision-makers.

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Consultancy agencies based in Irvine, United States at a glance

As of Sep 24, 2026
46.3%Verified-email coverage
6.3Average contacts per company
1-10Median size (employees)
1588.3%Largest-city concentration · New York
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
89
11-50
28
51-200
9
201-500
2

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 128 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 consultancy agencies, 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 “consultancy agencies”. 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 consultancy agencies), 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 consultancy agencies, 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, 371 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.

Consultancy agencies 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 consultancy agencies, 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 consultancy agencies are there based in Irvine, United States?

RevenueBase identified 128 consultancy agencies 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?

Interwest Consulting Group, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most consultancy agencies?

New York leads with 2033 headquartered companies, followed by Los Angeles (916) and Chicago (845).

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 371 verified decision-maker contacts tracked across these 128 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.

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