Company lists · Data refreshed September 2026

Top 25 Infrastructure advisory consultants based in Irvine, United States

Name: Infrastructure advisory consultants based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 52 companies tracked

RevenueBase identified 52 company matches for infrastructure advisory consultants associated with Irvine, United States as of September 2026 and tracks 4,239 professional contacts across them, including 2,336 with verified work emails. Across the United States, New York is the largest hub for this category (214 companies); Irvine has 52.

This list covers company matches for infrastructure advisory consultants 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 21, 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 21, 2026 How this list was built

52Companies

4,239Contacts tracked

2,336Verified emails

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The 25 largest infrastructure advisory consultants based in Irvine, United States

Ranked by team size

Top 25 of 52 company matches for infrastructure advisory consultants based in Irvine, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 Sep 21, 2026	1,001-5,000	1,843 contacts →
	Exact match “Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Shimmick Corporation	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	760 contacts →
	Exact match “At Shimmick (NASDAQ: SHIM), we’re shaping the future of sustainable infrastructure through innovative solutions that advance communities and protect our environment.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	LSA	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	201-500	332 contacts →
	Exact match “LSA is a diversified environmental, transportation, and community planning firm that evolved from a small consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Interwest Consulting Group	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5	IDS Group, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6	RBF Consulting, A Company Of Michael Baker International	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	176 contacts →
	Exact match “RBF Consulting, a Company of Michael Baker International, LLC, is one of the Nation's leading civil engineering, design, planning, surveying and construction management firms…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Bridgewater Consulting Group, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	67 contacts →
	Exact match “Bridgewater Consulting Group provides full-service management and technical consulting services to clients in the Utility industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	EPD Solutions, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	64 contacts →
	Exact match “EPD was created to assist clients through the complex regulatory and interdisciplinary process required to bring projects to fruition in the most thoughtful manner.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	VA Consulting, Inc., NOW Stantec	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	60 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 · Sep 21, 2026 · View company records in RevenueBase
10	AKM Consulting Engineers	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
11	Advantec Consulting Engineers, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	48 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 · Sep 21, 2026 · View company records in RevenueBase
12	T&b Planning, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	39 contacts →
	Exact match “T&B Planning provides due diligence, land use planning, entitlement, CEQA/NEPA compliance, development services, project management, and GIS services from our offices in Irvine…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Linscott, LAW & Greenspan, Engineers	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	37 contacts →
	Exact match “Linscott, Law & Greenspan, Engineers (LLG) provides transportation planning, traffic engineering and parking consultation services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	C&v Consulting, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	37 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	National Engineering & Consulting, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	20 contacts →
	Exact match “National Engineering and Consulting, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Exyion, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	17 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 · Sep 21, 2026 · View company records in RevenueBase
17	N2w Engineering, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	17 contacts →
	Exact match “We’re redefining what it means to partner with a consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	TJW Engineering, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	16 contacts →
	Exact match “TJW Engineering, Inc.(TJW), a California Corporation, is an engineering consulting firm that specializes in traffic engineering and transportation planning design and analysis.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	NCM Engineering Corp, NOW GFT	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	15 contacts →
	Exact match “NCM Engineering, A TranSystems Company, serves the state, metropolitan planning organizations, rail authorities, transit districts, transportation joint power authorities…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Tatsumi & Partners, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	15 contacts →
	Exact match “Landscape Architecture - Urban Design - Visual Management” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Infrastrategies	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	12 contacts →
	Exact match “InfraStrategies is built on the idea that experience and innovation are critical ingredients in improving mobility outcomes.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Kapstone Planning	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	1-10	10 contacts →
	Exact match “Urban planning and operations consulting firm based in Orange County, CA.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Wilson Mikami Corporation	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	9 contacts →
	Exact match “Wilson Mikami Corporation is a private Civil Engineering consulting firm established in 2004 and located in the City of Irvine, California.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Knitter Partners International	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	8 contacts →
	Exact match “Knitter Partners International (KPI) is a full service Architectural and Planning firm established in 1980.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Avocet Environmental, INC	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	11-50	7 contacts →
	Exact match “A civil and environmental engineering company with expertise in environmental infrastructure (water, wastewater, storm water, landfills), environmental assessment, and remediation.” Recorded in the RevenueBase company graph · Sep 21, 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 “infrastructure advisory consultants”. 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 52 infrastructure advisory consultants based in Irvine, United States

See the full list, filter by size, metro and specialty, and access 2,336 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure advisory consultants based in Irvine, United States at a glance

As of Sep 21, 2026

55.1%Verified-email coverage

81.5Average contacts per company

11-50Median size (employees)

Sep 21, 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 52 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 “infrastructure advisory consultants” 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 2,336 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 21, 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.

Infrastructure advisory consultants 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 “infrastructure advisory consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure advisory consultants are there based in Irvine, United States?

RevenueBase identified 52 company matches for infrastructure advisory consultants 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?

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 infrastructure advisory consultants?

New York leads the United States with 214 company records, followed by Houston (209) and Chicago (110). Irvine has 52.

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 2,336 professional contacts with verified work emails tracked across these 52 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 21, 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.