Company lists · Data refreshed September 2026
Top 25 Infrastructure design firms based in Los Angeles, United States
RevenueBase identified 62 company matches for infrastructure design firms associated with Los Angeles, United States as of September 2026 and tracks 2,308 professional contacts across them, including 1,132 with verified work emails. Across the United States, Houston is the largest hub for this category (156 companies); Los Angeles has 62.
This list covers company matches for infrastructure design firms associated with Los Angeles, 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 20, 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 25 largest infrastructure design firms based in Los Angeles, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 748 contacts → | ||||
Exact match “Our award-winning projects are produced through innovation, creativity, and technical expertise.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 516 contacts → | ||||
Exact match “CORDOBA CORPORATION is a California engineering, construction management, program management, and planning firm specializing in transportation, water, energy, education and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 132 contacts → | ||||
Exact match “Established in 1953, John A.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 73 contacts → | ||||
Exact match “Since 1946, Gruen Associates succeeds as one of Los Angeles’ best known legacy firms with a deep portfolio of landmark projects.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 53 contacts → | ||||
Exact match “Our firm is proud to be identified among those who built the Los Angeles we see today.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 51 contacts → | ||||
Exact match “SEA PAC ENGINEERING, INC is a company based out of Los Angeles, California, United States.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 47 contacts → | ||||
Exact match “JGM has offered a comprehensive array of design and construction related services to public and private sector clients for over 40 years.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 43 contacts → | ||||
Exact match “Englekirk fields two structural engineering firms specifically tailored to meet the challenges of the commercial and institutional market sectors.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 43 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 26 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 21 contacts → | ||||
Exact match “Nous Engineering is an innovative Structural Engineering firm based in Los Angeles.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 16 contacts → | ||||
Exact match “The Alliance Group Consulting (TAGC) is a California based transportation engineering firm which is located in Los Angeles and is certified as a SBE/VSBE/DBE/MBE/DGS firm.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 15 contacts → | ||||
Exact match “BA Inc.(DBE/MBE/SBE) has been in business for 11 years; established and incorporated in 2004 to provide professional engineering design services to public agencies for public…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “C2PM stands at the forefront of the construction consulting landscape, offering a full spectrum of program management, construction management, and specialized engineering…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 13 contacts → | ||||
Exact match “We are a design and engineering company with a passionate group of engineers that offers professional engineering design services for a range of clients in commercial and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match “DRC, a public works engineering firm, in business for 40 years, provides expert level Transportation; Water/Wastewater engineering and Construction Management services to repeat…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 10 contacts → | ||||
Exact match “The Robert Group, based in Los Angeles and with a smaller but highly respected presence in San Francisco, is an established public affairs and strategic communications firm…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “DK Engineer, Corp (DKE) is a boutique civil engineering consulting firm that provides design and construction administration services for construction projects throughout Southern…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 9 contacts → | ||||
Exact match “Whether you're upgrading an existing structure or building from the ground up, Peter T.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “As a trusted General Contractor specializing in Infrastructural Public Works, we partner with government agencies to deliver projects that connect communities, enhance safety, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “Parthenon Corporation is a leading provider of consulting, engineering, and construction services worldwide.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 8 contacts → | ||||
Exact match “Archimorphic is a boutique architectural firm located in Downtown Los Angeles.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match “RoTo has envisioned, designed, and built a wide range of project types of varying type, scope, and complexity, locally, nationally, and internationally.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 5 contacts → | ||||
Exact match “Steiner Consulting, Inc.(SCI) is a heavy civil-engineering consulting firm specializing in driving Southern California infrastructure.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 4 contacts → | ||||
Exact match “Suenram & Associates, Inc.(SAI) is a Los Angeles-based certified small business enterprise providing civil engineering design and consulting services for public agencies and…” Recorded in the RevenueBase company graph · Sep 20, 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 design 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 62 infrastructure design firms based in Los Angeles, United States
See the full list, filter by size, metro and specialty, and access 1,132 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Infrastructure design firms based in Los Angeles, United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 62 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 Los Angeles, United States whose business descriptions match “infrastructure design 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 1,132 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 20, 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 design firms by metro in the United States
- Infrastructure design firms in Houston156
- Infrastructure design firms in New York141
- Infrastructure design firms in Chicago89
- Infrastructure design firms in Miami71
- Infrastructure design firms in Dallas70
- Infrastructure design firms in Austin67
- Infrastructure design firms in Atlanta56
- Infrastructure design firms in San Francisco55
- Infrastructure design firms in Orlando54
- Infrastructure design firms in Tampa54
- Infrastructure design firms in Washington52
- Infrastructure design firms in Raleigh49
- Infrastructure design firms in San Diego49
- Infrastructure design firms in Phoenix46
- Infrastructure design firms in San Antonio44
- Infrastructure design firms in Portland42
- Infrastructure design firms in Seattle40
- Infrastructure design firms in Denver38
- Infrastructure design firms in Jacksonville38
- Infrastructure design firms in Irvine36
- Infrastructure design firms in Boston34
- Infrastructure design firms in Charlotte34
- Infrastructure design firms in Columbus32
- Infrastructure design firms in Indianapolis32
- Infrastructure design firms in Las Vegas29
- Infrastructure design firms in Nashville29
- Infrastructure design firms in Pittsburgh26
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 design firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many infrastructure design firms are there based in Los Angeles, United States?
RevenueBase identified 62 company matches for infrastructure design firms associated with Los Angeles, 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?
Psomas 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 design firms?
Houston leads the United States with 156 company records, followed by New York (141) and Chicago (89). Los Angeles has 62.
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 1,132 professional contacts with verified work emails tracked across these 62 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 62 infrastructure design firms based in Los Angeles, United States. Start with a free account, no credit card.
Download this list →Related lists
Infrastructure design firms by geography
- Infrastructure design firms based in Brisbane, Australia
- Infrastructure design firms based in Melbourne, Australia
- Infrastructure design firms based in Perth, Australia
- Infrastructure design firms based in Sydney, Australia
- Infrastructure design firms based in Belo Horizonte, Brazil
- Infrastructure design firms based in Curitiba, Brazil
- Infrastructure design firms based in Fortaleza, Brazil
- Infrastructure design firms based in Porto Alegre, Brazil
- Infrastructure design firms based in Rio De Janeiro, Brazil
- Infrastructure design firms based in Sao Paulo, Brazil
- Infrastructure design firms based in Calgary, Canada
- Infrastructure design firms based in Edmonton, 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
- Infrastructure design firms based in Brisbane, Australia
- Infrastructure design firms based in Melbourne, Australia
- Infrastructure design firms based in Perth, Australia
- Infrastructure design firms based in Sydney, Australia
- Infrastructure design firms based in Belo Horizonte, Brazil
- Infrastructure design firms based in Curitiba, Brazil
Company intelligence · public preview
Top 25 infrastructure design firms based in Los Angeles, 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 62 matching company records for infrastructure design firms based in Los Angeles, United States, with 2,308 tracked contacts and 1,132 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 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 25 infrastructure design firms based in Los Angeles, 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 |  Psomaspsomas.comHQ: Los Angeles, CA, United StatesReported employees: 501-1,000 | Los Angeles, CA, United States | 501-1,000 | Exact match | 748 contacts → |
“Our award-winning projects are produced through innovation, creativity, and technical expertise.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Cordoba Corporationcordobacorp.comHQ: Los Angeles, CA, United StatesReported employees: 501-1,000 | Los Angeles, CA, United States | 501-1,000 | Exact match | 516 contacts → |
“CORDOBA CORPORATION is a California engineering, construction management, program management, and planning firm specializing in transportation, water, energy, education and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  John A. Martin & Associates, INCjohnmartin.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 132 contacts → |
“Established in 1953, John A.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Gruen Associatesgruenassociates.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 73 contacts → |
“Since 1946, Gruen Associates succeeds as one of Los Angeles’ best known legacy firms with a deep portfolio of landmark projects.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Brandow & Johnstonbjsce.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 53 contacts → |
“Our firm is proud to be identified among those who built the Los Angeles we see today.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  SEA PAC Engineering, INCseapaceng.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 51 contacts → |
“SEA PAC ENGINEERING, INC is a company based out of Los Angeles, California, United States.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  JGMjgminc.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 47 contacts → |
“JGM has offered a comprehensive array of design and construction related services to public and private sector clients for over 40 years.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 43 contacts → |
“Englekirk fields two structural engineering firms specifically tailored to meet the challenges of the commercial and institutional market sectors.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Aecom Technology Corpaecom.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 43 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  V&a, INCva-incorp.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 26 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 |  Nous Engineeringnousengineering.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 21 contacts → |
“Nous Engineering is an innovative Structural Engineering firm based in Los Angeles.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  The Alliance Group Consultingtagccorp.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 16 contacts → |
“The Alliance Group Consulting (TAGC) is a California based transportation engineering firm which is located in Los Angeles and is certified as a SBE/VSBE/DBE/MBE/DGS firm.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  BA INCbaincorp.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 15 contacts → |
“BA Inc.(DBE/MBE/SBE) has been in business for 11 years; established and incorporated in 2004 to provide professional engineering design services to public agencies for public…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  C2pmc2pm.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 14 contacts → |
“C2PM stands at the forefront of the construction consulting landscape, offering a full spectrum of program management, construction management, and specialized engineering…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Innodezinnodez.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 13 contacts → |
“We are a design and engineering company with a passionate group of engineers that offers professional engineering design services for a range of clients in commercial and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  D R Consultants & Designers, INCdrcdinc.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 10 contacts → |
“DRC, a public works engineering firm, in business for 40 years, provides expert level Transportation; Water/Wastewater engineering and Construction Management services to repeat…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  The Robert Grouptherobertgroup.comHQ: Los Angeles, United StatesReported employees: 1-10 | Los Angeles, United States | 1-10 | Exact match | 10 contacts → |
“The Robert Group, based in Los Angeles and with a smaller but highly respected presence in San Francisco, is an established public affairs and strategic communications firm…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  DK Engineer, Corpdkengineercorp.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 9 contacts → |
“DK Engineer, Corp (DKE) is a boutique civil engineering consulting firm that provides design and construction administration services for construction projects throughout Southern…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Peter T. Erdelyi & Assoc. Inc.erdelyi.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 9 contacts → |
“Whether you're upgrading an existing structure or building from the ground up, Peter T.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Legion Contractors, INClegioncontractors.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 9 contacts → |
“As a trusted General Contractor specializing in Infrastructural Public Works, we partner with government agencies to deliver projects that connect communities, enhance safety, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Parthenon Corporationparthenoncorp.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 8 contacts → |
“Parthenon Corporation is a leading provider of consulting, engineering, and construction services worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Archimorphicarchimorphic.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 8 contacts → |
“Archimorphic is a boutique architectural firm located in Downtown Los Angeles.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Roto Architectsrotoark.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 7 contacts → |
“RoTo has envisioned, designed, and built a wide range of project types of varying type, scope, and complexity, locally, nationally, and internationally.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Steiner Consulting INCsteinerconsultinginc.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 5 contacts → |
“Steiner Consulting, Inc.(SCI) is a heavy civil-engineering consulting firm specializing in driving Southern California infrastructure.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Suenram & Associates, INCsuenramassoc.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 4 contacts → |
“Suenram & Associates, Inc.(SAI) is a Los Angeles-based certified small business enterprise providing civil engineering design and consulting services for public agencies and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 62 company matches
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Infrastructure design firms: dataset insights
September 20, 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
62 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 Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 62 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 20, 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 ↗
Infrastructure design firms by metro in the United States
- Infrastructure design firms in Houston156
- Infrastructure design firms in New York141
- Infrastructure design firms in Chicago89
- Infrastructure design firms in Miami71
- Infrastructure design firms in Dallas70
- Infrastructure design firms in Austin67
- Infrastructure design firms in Atlanta56
- Infrastructure design firms in San Francisco55
- Infrastructure design firms in Orlando54
- Infrastructure design firms in Tampa54
- Infrastructure design firms in Washington52
- Infrastructure design firms in Raleigh49
- Infrastructure design firms in San Diego49
- Infrastructure design firms in Phoenix46
- Infrastructure design firms in San Antonio44
- Infrastructure design firms in Portland42
- Infrastructure design firms in Seattle40
- Infrastructure design firms in Denver38
- Infrastructure design firms in Jacksonville38
- Infrastructure design firms in Irvine36
- Infrastructure design firms in Boston34
- Infrastructure design firms in Charlotte34
- Infrastructure design firms in Columbus32
- Infrastructure design firms in Indianapolis32
- Infrastructure design firms in Las Vegas29
- Infrastructure design firms in Nashville29
- Infrastructure design firms in Pittsburgh26
Questions about this company list
What does Exact match mean for infrastructure design firms?
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 infrastructure design firms did RevenueBase find based in Los Angeles, United States?
The saved snapshot records 62 matching company records, 2,308 tracked contacts and 1,132 verified emails. The public preview displays 25 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 20, 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
Infrastructure design firms by geography
- Infrastructure design firms based in Brisbane, Australia
- Infrastructure design firms based in Melbourne, Australia
- Infrastructure design firms based in Perth, Australia
- Infrastructure design firms based in Sydney, Australia
- Infrastructure design firms based in Belo Horizonte, Brazil
- Infrastructure design firms based in Curitiba, Brazil
- Infrastructure design firms based in Fortaleza, Brazil
- Infrastructure design firms based in Porto Alegre, Brazil
- Infrastructure design firms based in Rio De Janeiro, Brazil
- Infrastructure design firms based in Sao Paulo, Brazil
- Infrastructure design firms based in Calgary, Canada
- Infrastructure design firms based in Edmonton, Canada
Cite this list
RevenueBase Data Team. Top 25 infrastructure design firms based in Los Angeles, United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/infrastructure-design-firms/united-states/los-angeles.
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
- Infrastructure design firms based in Brisbane, Australia
- Infrastructure design firms based in Melbourne, Australia
- Infrastructure design firms based in Perth, Australia
- Infrastructure design firms based in Sydney, Australia
- Infrastructure design firms based in Belo Horizonte, Brazil
- Infrastructure design firms based in Curitiba, Brazil
Company intelligence · public preview
Top 25 infrastructure design firms based in Los Angeles, United States
RevenueBase records 62 matching company records for infrastructure design firms based in Los Angeles, United States, with 2,308 tracked contacts and 1,132 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 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 25 infrastructure design firms based in Los Angeles, 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 | Psomaspsomas.com HQ: Los Angeles, CA, United StatesReported employees: 501-1,000 | Los Angeles, CA, United States | 501-1,000 | Exact match | 748 contacts → |
“Our award-winning projects are produced through innovation, creativity, and technical expertise.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Cordoba Corporationcordobacorp.com HQ: Los Angeles, CA, United StatesReported employees: 501-1,000 | Los Angeles, CA, United States | 501-1,000 | Exact match | 516 contacts → |
“CORDOBA CORPORATION is a California engineering, construction management, program management, and planning firm specializing in transportation, water, energy, education and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | John A. Martin & Associates, INCjohnmartin.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 132 contacts → |
“Established in 1953, John A.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Gruen Associatesgruenassociates.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 73 contacts → |
“Since 1946, Gruen Associates succeeds as one of Los Angeles’ best known legacy firms with a deep portfolio of landmark projects.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Brandow & Johnstonbjsce.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 53 contacts → |
“Our firm is proud to be identified among those who built the Los Angeles we see today.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | SEA PAC Engineering, INCseapaceng.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 51 contacts → |
“SEA PAC ENGINEERING, INC is a company based out of Los Angeles, California, United States.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | JGMjgminc.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 47 contacts → |
“JGM has offered a comprehensive array of design and construction related services to public and private sector clients for over 40 years.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 43 contacts → |
“Englekirk fields two structural engineering firms specifically tailored to meet the challenges of the commercial and institutional market sectors.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Aecom Technology Corpaecom.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 43 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | V&a, INCva-incorp.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 26 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Nous Engineeringnousengineering.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 21 contacts → |
“Nous Engineering is an innovative Structural Engineering firm based in Los Angeles.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | The Alliance Group Consultingtagccorp.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 16 contacts → |
“The Alliance Group Consulting (TAGC) is a California based transportation engineering firm which is located in Los Angeles and is certified as a SBE/VSBE/DBE/MBE/DGS firm.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | BA INCbaincorp.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 15 contacts → |
“BA Inc.(DBE/MBE/SBE) has been in business for 11 years; established and incorporated in 2004 to provide professional engineering design services to public agencies for public…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | C2pmc2pm.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 14 contacts → |
“C2PM stands at the forefront of the construction consulting landscape, offering a full spectrum of program management, construction management, and specialized engineering…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Innodezinnodez.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 13 contacts → |
“We are a design and engineering company with a passionate group of engineers that offers professional engineering design services for a range of clients in commercial and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | D R Consultants & Designers, INCdrcdinc.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 10 contacts → |
“DRC, a public works engineering firm, in business for 40 years, provides expert level Transportation; Water/Wastewater engineering and Construction Management services to repeat…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | The Robert Grouptherobertgroup.com HQ: Los Angeles, United StatesReported employees: 1-10 | Los Angeles, United States | 1-10 | Exact match | 10 contacts → |
“The Robert Group, based in Los Angeles and with a smaller but highly respected presence in San Francisco, is an established public affairs and strategic communications firm…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | DK Engineer, Corpdkengineercorp.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 9 contacts → |
“DK Engineer, Corp (DKE) is a boutique civil engineering consulting firm that provides design and construction administration services for construction projects throughout Southern…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Peter T. Erdelyi & Assoc. Inc.erdelyi.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 9 contacts → |
“Whether you're upgrading an existing structure or building from the ground up, Peter T.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Legion Contractors, INClegioncontractors.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 9 contacts → |
“As a trusted General Contractor specializing in Infrastructural Public Works, we partner with government agencies to deliver projects that connect communities, enhance safety, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Parthenon Corporationparthenoncorp.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 8 contacts → |
“Parthenon Corporation is a leading provider of consulting, engineering, and construction services worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Archimorphicarchimorphic.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 8 contacts → |
“Archimorphic is a boutique architectural firm located in Downtown Los Angeles.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Roto Architectsrotoark.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 7 contacts → |
“RoTo has envisioned, designed, and built a wide range of project types of varying type, scope, and complexity, locally, nationally, and internationally.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Steiner Consulting INCsteinerconsultinginc.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 5 contacts → |
“Steiner Consulting, Inc.(SCI) is a heavy civil-engineering consulting firm specializing in driving Southern California infrastructure.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Suenram & Associates, INCsuenramassoc.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 4 contacts → |
“Suenram & Associates, Inc.(SAI) is a Los Angeles-based certified small business enterprise providing civil engineering design and consulting services for public agencies and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 62 company matches
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Infrastructure design firms: dataset insights
September 20, 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
62 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 Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 62 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 20, 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 ↗
Infrastructure design firms by metro in the United States
- Infrastructure design firms in Houston156
- Infrastructure design firms in New York141
- Infrastructure design firms in Chicago89
- Infrastructure design firms in Miami71
- Infrastructure design firms in Dallas70
- Infrastructure design firms in Austin67
- Infrastructure design firms in Atlanta56
- Infrastructure design firms in San Francisco55
- Infrastructure design firms in Orlando54
- Infrastructure design firms in Tampa54
- Infrastructure design firms in Washington52
- Infrastructure design firms in Raleigh49
- Infrastructure design firms in San Diego49
- Infrastructure design firms in Phoenix46
- Infrastructure design firms in San Antonio44
- Infrastructure design firms in Portland42
- Infrastructure design firms in Seattle40
- Infrastructure design firms in Denver38
- Infrastructure design firms in Jacksonville38
- Infrastructure design firms in Irvine36
- Infrastructure design firms in Boston34
- Infrastructure design firms in Charlotte34
- Infrastructure design firms in Columbus32
- Infrastructure design firms in Indianapolis32
- Infrastructure design firms in Las Vegas29
- Infrastructure design firms in Nashville29
- Infrastructure design firms in Pittsburgh26
Questions about this company list
What does Exact match mean for infrastructure design firms?
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 infrastructure design firms did RevenueBase find based in Los Angeles, United States?
The saved snapshot records 62 matching company records, 2,308 tracked contacts and 1,132 verified emails. The public preview displays 25 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 20, 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
Infrastructure design firms by geography
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Cite this list
RevenueBase Data Team. Top 25 infrastructure design firms based in Los Angeles, United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/infrastructure-design-firms/united-states/los-angeles.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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