Company lists · Data refreshed November 2026

Top 21 Engineering service providers based in Irvine, United States

Name: Engineering service providers based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 89 companies tracked

RevenueBase identified 89 company matches for engineering service providers associated with Irvine, United States as of November 2026 and tracks 4,741 professional contacts across them, including 2,298 with verified work emails. Across the United States, Houston is the largest hub for this category (501 companies); Irvine has 89.

This list covers company matches for engineering service providers 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 November 6, 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 Nov 6, 2026 How this list was built

89Companies

4,741Contacts tracked

2,298Verified emails

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The 21 largest engineering service providers based in Irvine, United States

Ranked by team size

Top 21 of 89 company matches for engineering service providers based in Irvine, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Salas O'brien	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,110 contacts →
	Exact match “Salas O’Brien is an employee-owned engineering, science, and technical services firm focused on advancing the human experience through the built environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Arb, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	547 contacts →
	Exact match “ARB Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	IDS Group, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	216 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 · Nov 6, 2026 · View company records in RevenueBase
4	Leighton	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	194 contacts →
	Exact match “Leighton, a Verdantas Company, provides environmental, geotechnical, materials testing, and special inspection services across the built community.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Murow Development Consultants, A Crede Company	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	75 contacts →
	Exact match “Murow DC is a CREDE company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	VA Consulting, Inc., NOW Stantec	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	62 contacts →
	Exact match “VA Consulting has joined Stantec, an architecture and engineering firm with more than creative team members across North America and the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	AKM Consulting Engineers	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	49 contacts →
	Exact match “Based in Irvine, California, AKM Consulting Engineers is a multidisciplinary firm providing expert engineering solutions to municipalities, public agencies, and state and federal…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Advantec Consulting Engineers, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	45 contacts →
	Exact match “At ADVANTEC Consulting Engineers, we are driven by a shared commitment to shaping smarter, safer, and more connected communities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Noreas INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	43 contacts →
	Exact match “NOREAS was formed in 2008 and provides scientific, engineering and environmental services to the DoD, civilian federal agencies, utility companies and private clients throughout…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Hummingbird Aero LLC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	42 contacts →
	Exact match “Hummingbird Aero LLC is a premier global engineering consulting and services provider focused in aircraft flight controls, actuation, hydraulic systems, avionics and software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Hummingbird Technosys, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	39 contacts →
	Exact match “Overview: Hummingbird TekSystem, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	C&v Consulting, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	38 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Pm2net	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	26 contacts →
	Exact match “PM2net is a white-label “professional services only” organization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Terra Pacific Group Incorporated	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	21 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	National Engineering & Consulting, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	51-200	21 contacts →
	Exact match “National Engineering and Consulting, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Lean Technology Corporation	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “Lean Technology Corporation (formerly Lean Photometrics) has over 20 years of experience in Engineering Design, CM Electrical Inspection, Design-Bid-Build, and Airfield and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Exyion, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “Exyion prides itself in providing highly experienced Utility Industry Consultants with years of experience in many areas of the Utility Business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	ACE MEP Group, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “ACE MEP Group, Inc.(ACE) is a full-service MEP engineering & consulting firm providing mechanical, electrical, & plumbing engineering along with energy calculations & Title-24…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	N2w Engineering, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “We’re redefining what it means to partner with a consulting engineering firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Hushmand Associates, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	14 contacts →
	Exact match “Hushmand Associates, Incorporated (HAI) is a geotechnical and earthquake engineering consulting firm founded in 1990, that provides design services, construction support…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	SGE Consulting Engineers	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	11-50	14 contacts →
	Exact match “Established in 1992, S.” Recorded in the RevenueBase company graph · Nov 6, 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 “engineering service providers”. 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 21 of 89 engineering service providers based in Irvine, United States

See the full list, filter by size, metro and specialty, and access 2,298 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Engineering service providers based in Irvine, United States at a glance

As of Nov 6, 2026

48.5%Verified-email coverage

53.3Average contacts per company

11-50Median size (employees)

Nov 6, 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 89 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 “engineering service providers” 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 2,298 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 November 6, 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.

Engineering service providers 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 “engineering service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engineering service providers are there based in Irvine, United States?

RevenueBase identified 89 company matches for engineering service providers associated with Irvine, United States as of November 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?

Salas O'brien 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 engineering service providers?

Houston leads the United States with 501 company records, followed by New York (394) and Austin (190). Irvine has 89.

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 2,298 professional contacts with verified work emails tracked across these 89 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 November 6, 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.