Company lists · Data refreshed September 2026
Top 15 Transit authority engineering services based in Irvine, United States
RevenueBase identified 26 company matches for transit authority engineering services associated with Irvine, United States as of September 2026 and tracks 979 professional contacts across them, including 356 with verified work emails. Across the United States, Houston is the largest hub for this category (96 companies); Irvine has 26.
This list covers company matches for transit authority engineering services 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 19, 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.
The 15 largest transit authority engineering services based in Irvine, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 19, 2026 · View company records in RevenueBase | |||||
| 2 | 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 19, 2026 · View company records in RevenueBase | |||||
| 3 | 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 19, 2026 · View company records in RevenueBase | |||||
| 4 | 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 19, 2026 · View company records in RevenueBase | |||||
| 5 | 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 19, 2026 · View company records in RevenueBase | |||||
| 6 | 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 19, 2026 · View company records in RevenueBase | |||||
| 7 | 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 19, 2026 · View company records in RevenueBase | |||||
| 8 | 37 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 20 contacts → | ||||
Exact match “National Engineering and Consulting, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 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 19, 2026 · View company records in RevenueBase | |||||
| 11 | 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 19, 2026 · View company records in RevenueBase | |||||
| 12 | 7 contacts → | ||||
Exact match “The Kreuzer Consulting Group (KCG) is a California corporation.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 7 contacts → | ||||
Exact match “Sarakki Associates Inc.(SAI) is a leading consulting firm specializing in management consulting, program/project management, and systems-software engineering (requirements…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 3 contacts → | ||||
Exact match “Frontier Engineering Group (FEG) is a leading transportation engineering firm providing engineering design and construction management services for highway bridges, rail, transit…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 1 contacts → | ||||
Exact match “ESWORKS provides consulting for electrification projects, environmental compliance, and project management.” Recorded in the RevenueBase company graph · Sep 19, 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 “transit authority engineering services”. 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 15 of 26 transit authority engineering services based in Irvine, United States
See the full list, filter by size, metro and specialty, and access 356 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Transit authority engineering services based in Irvine, United States at a glance
As of Sep 19, 2026Companies by employee count
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 26 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 “transit authority engineering services” 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 356 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 19, 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.
Transit authority engineering services by metro in the United States
- Transit authority engineering services in Houston96
- Transit authority engineering services in New York75
- Transit authority engineering services in Chicago53
- Transit authority engineering services in Dallas43
- Transit authority engineering services in Miami39
- Transit authority engineering services in Los Angeles37
- Transit authority engineering services in Austin34
- Transit authority engineering services in Tampa29
- Transit authority engineering services in Atlanta27
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 “transit authority engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many transit authority engineering services are there based in Irvine, United States?
RevenueBase identified 26 company matches for transit authority engineering services 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?
Interwest Consulting Group 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 transit authority engineering services?
Houston leads the United States with 96 company records, followed by New York (75) and Chicago (53). Irvine has 26.
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 356 professional contacts with verified work emails tracked across these 26 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 26 transit authority engineering services based in Irvine, United States. Start with a free account, no credit card.
Download this list →Related lists
Transit authority engineering services by geography
- Transit authority engineering services based in Brisbane, Australia
- Transit authority engineering services based in Melbourne, Australia
- Transit authority engineering services based in Perth, Australia
- Transit authority engineering services based in Sydney, Australia
- Transit authority engineering services based in Belo Horizonte, Brazil
- Transit authority engineering services based in Curitiba, Brazil
- Transit authority engineering services based in Porto Alegre, Brazil
- Transit authority engineering services based in Rio De Janeiro, Brazil
- Transit authority engineering services based in Sao Paulo, Brazil
- Transit authority engineering services based in Calgary, Canada
- Transit authority engineering services based in Edmonton, Canada
- Transit authority engineering services based in Montreal, Canada
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Transit authority engineering services based in Brisbane, Australia
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- Transit authority engineering services based in Perth, Australia
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Company intelligence · public preview
Top 15 transit authority engineering services based in Irvine, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 26 matching company records for transit authority engineering services based in Irvine, United States, with 979 tracked contacts and 356 verified work emails.
This public preview shows 15 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 15 transit authority engineering services based in Irvine, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Interwest Consulting Groupinterwestgrp.comHQ: Irvine, CA, United StatesReported employees: 201-500 | Irvine, CA, United States | 201-500 | Exact match | 221 contacts → |
“Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  IDS Group, INCidsgi.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 205 contacts → |
“IDS is an award-winning engineering and architectural firm offering multidisciplinary consulting services through our staff of 90 professionals.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Irvine, CA, United StatesReported employees: 1,001-5,000 | Irvine, CA, United States | 1,001-5,000 | Exact match | 176 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  VA Consulting, Inc., NOW Stantecvaconsultinginc.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 60 contacts → |
“VA Consulting has joined Stantec, an architecture and engineering firm with more than creative team members across North America and the world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  AKM Consulting Engineersakmce.comHQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 49 contacts → |
“Based in Irvine, California, AKM Consulting Engineers is a multidisciplinary firm providing expert engineering solutions to municipalities, public agencies, and state and federal…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Advantec Consulting Engineers, INCadvantec-usa.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 48 contacts → |
“At ADVANTEC Consulting Engineers, we are driven by a shared commitment to shaping smarter, safer, and more connected communities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Linscott, LAW & Greenspan, Engineersllgengineers.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 37 contacts → |
“Linscott, Law & Greenspan, Engineers (LLG) provides transportation planning, traffic engineering and parking consultation services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  C&v Consulting, INCcvc-inc.netHQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 37 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 |  National Engineering & Consulting, INCnationaleng.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 20 contacts → |
“National Engineering and Consulting, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  NCM Engineering Corp, NOW GFTncmcivil.comHQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 15 contacts → |
“NCM Engineering, A TranSystems Company, serves the state, metropolitan planning organizations, rail authorities, transit districts, transportation joint power authorities…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Infrastrategiesinfrastrategies.comHQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 12 contacts → |
“InfraStrategies is built on the idea that experience and innovation are critical ingredients in improving mobility outcomes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Kreuzer Consulting Group KCGkreuzerconsulting.comHQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 7 contacts → |
“The Kreuzer Consulting Group (KCG) is a California corporation.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Sarakki Associates Inc. SAIsarakki.comHQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 7 contacts → |
“Sarakki Associates Inc.(SAI) is a leading consulting firm specializing in management consulting, program/project management, and systems-software engineering (requirements…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Frontier Engineering Groupfrontierecmg.comHQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 3 contacts → |
“Frontier Engineering Group (FEG) is a leading transportation engineering firm providing engineering design and construction management services for highway bridges, rail, transit…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  ES Worksesworksconsulting.comHQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 1 contacts → |
“ESWORKS provides consulting for electrification projects, environmental compliance, and project management.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 15 of 26 company matches
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Transit authority engineering services: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
26 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 26 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Transit authority engineering services by metro in the United States
- Transit authority engineering services in Houston96
- Transit authority engineering services in New York75
- Transit authority engineering services in Chicago53
- Transit authority engineering services in Dallas43
- Transit authority engineering services in Miami39
- Transit authority engineering services in Los Angeles37
- Transit authority engineering services in Austin34
- Transit authority engineering services in Tampa29
- Transit authority engineering services in Atlanta27
Questions about this company list
What does Exact match mean for transit authority engineering services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many transit authority engineering services did RevenueBase find based in Irvine, United States?
The saved snapshot records 26 matching company records, 979 tracked contacts and 356 verified emails. The public preview displays 15 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Transit authority engineering services by geography
- Transit authority engineering services based in Brisbane, Australia
- Transit authority engineering services based in Melbourne, Australia
- Transit authority engineering services based in Perth, Australia
- Transit authority engineering services based in Sydney, Australia
- Transit authority engineering services based in Belo Horizonte, Brazil
- Transit authority engineering services based in Curitiba, Brazil
- Transit authority engineering services based in Porto Alegre, Brazil
- Transit authority engineering services based in Rio De Janeiro, Brazil
- Transit authority engineering services based in Sao Paulo, Brazil
- Transit authority engineering services based in Calgary, Canada
- Transit authority engineering services based in Edmonton, Canada
- Transit authority engineering services based in Montreal, Canada
Cite this list
RevenueBase Data Team. Top 15 transit authority engineering services based in Irvine, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/transit-authority-engineering-services/united-states/irvine.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Transit authority engineering services based in Brisbane, Australia
- Transit authority engineering services based in Melbourne, Australia
- Transit authority engineering services based in Perth, Australia
- Transit authority engineering services based in Sydney, Australia
- Transit authority engineering services based in Belo Horizonte, Brazil
- Transit authority engineering services based in Curitiba, Brazil
Company intelligence · public preview
Top 15 transit authority engineering services based in Irvine, United States
RevenueBase records 26 matching company records for transit authority engineering services based in Irvine, United States, with 979 tracked contacts and 356 verified work emails.
This public preview shows 15 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 15 transit authority engineering services based in Irvine, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Interwest Consulting Groupinterwestgrp.com HQ: Irvine, CA, United StatesReported employees: 201-500 | Irvine, CA, United States | 201-500 | Exact match | 221 contacts → |
“Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | IDS Group, INCidsgi.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 205 contacts → |
“IDS is an award-winning engineering and architectural firm offering multidisciplinary consulting services through our staff of 90 professionals.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Irvine, CA, United StatesReported employees: 1,001-5,000 | Irvine, CA, United States | 1,001-5,000 | Exact match | 176 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | VA Consulting, Inc., NOW Stantecvaconsultinginc.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 60 contacts → |
“VA Consulting has joined Stantec, an architecture and engineering firm with more than creative team members across North America and the world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | AKM Consulting Engineersakmce.com HQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 49 contacts → |
“Based in Irvine, California, AKM Consulting Engineers is a multidisciplinary firm providing expert engineering solutions to municipalities, public agencies, and state and federal…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Advantec Consulting Engineers, INCadvantec-usa.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 48 contacts → |
“At ADVANTEC Consulting Engineers, we are driven by a shared commitment to shaping smarter, safer, and more connected communities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Linscott, LAW & Greenspan, Engineersllgengineers.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 37 contacts → |
“Linscott, Law & Greenspan, Engineers (LLG) provides transportation planning, traffic engineering and parking consultation services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | C&v Consulting, INCcvc-inc.net HQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 37 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | National Engineering & Consulting, INCnationaleng.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 20 contacts → |
“National Engineering and Consulting, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | NCM Engineering Corp, NOW GFTncmcivil.com HQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 15 contacts → |
“NCM Engineering, A TranSystems Company, serves the state, metropolitan planning organizations, rail authorities, transit districts, transportation joint power authorities…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Infrastrategiesinfrastrategies.com HQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 12 contacts → |
“InfraStrategies is built on the idea that experience and innovation are critical ingredients in improving mobility outcomes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Kreuzer Consulting Group KCGkreuzerconsulting.com HQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 7 contacts → |
“The Kreuzer Consulting Group (KCG) is a California corporation.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Sarakki Associates Inc. SAIsarakki.com HQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 7 contacts → |
“Sarakki Associates Inc.(SAI) is a leading consulting firm specializing in management consulting, program/project management, and systems-software engineering (requirements…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Frontier Engineering Groupfrontierecmg.com HQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 3 contacts → |
“Frontier Engineering Group (FEG) is a leading transportation engineering firm providing engineering design and construction management services for highway bridges, rail, transit…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ES Worksesworksconsulting.com HQ: Irvine, CA, United StatesReported employees: 1-10 | Irvine, CA, United States | 1-10 | Exact match | 1 contacts → |
“ESWORKS provides consulting for electrification projects, environmental compliance, and project management.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 15 of 26 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
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Transit authority engineering services: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
26 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 26 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Transit authority engineering services by metro in the United States
- Transit authority engineering services in Houston96
- Transit authority engineering services in New York75
- Transit authority engineering services in Chicago53
- Transit authority engineering services in Dallas43
- Transit authority engineering services in Miami39
- Transit authority engineering services in Los Angeles37
- Transit authority engineering services in Austin34
- Transit authority engineering services in Tampa29
- Transit authority engineering services in Atlanta27
Questions about this company list
What does Exact match mean for transit authority engineering services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many transit authority engineering services did RevenueBase find based in Irvine, United States?
The saved snapshot records 26 matching company records, 979 tracked contacts and 356 verified emails. The public preview displays 15 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 15 transit authority engineering services based in Irvine, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/transit-authority-engineering-services/united-states/irvine.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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