Company lists · Data refreshed September 2026

Top 22 Transportation engineering firms based in San Diego, United States

Name: Transportation engineering firms based in San Diego, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 33 companies tracked

RevenueBase identified 33 company matches for transportation engineering firms associated with San Diego, United States as of September 2026 and tracks 3,284 professional contacts across them, including 1,779 with verified work emails. Across the United States, Houston is the largest hub for this category (121 companies); San Diego has 33.

This list covers company matches for transportation engineering firms associated with San Diego, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

33Companies

3,284Contacts tracked

1,779Verified emails

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The 22 largest transportation engineering firms based in San Diego, United States

Ranked by team size

Top 22 of 33 company matches for transportation engineering firms based in San Diego, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Kleinfelder	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	2,344 contacts →
	Exact match “At Kleinfelder, we have been connecting great people to the best work since 1961.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	RICK	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	201-500	446 contacts →
	Exact match “RICK is an award-winning planning, design, and engineering firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	CR Associates	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	11-50	68 contacts →
	Exact match “Mobility Solutions for Our Changing World As one of Southern California's foremost planning and design consulting firms, CR Associates (CRA) brings fresh vision to the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Bwe, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	11-50	66 contacts →
	Exact match “Since 1971, BWE has been providing Structural Engineering, Civil Engineering, and Land Surveying services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Scst, LLC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	51-200	52 contacts →
	Exact match “SCST,LLC is now Atlas.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Project Design Consultants, A Bowman Company	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	51-200	52 contacts →
	Exact match “As of July 18, 2022, Project Design Consultants has joined team Bowman.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	West Coast Civil, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	11-50	21 contacts →
	Exact match “WEST COAST CIVIL (WCC) is an emerging disadvantaged civil engineering firm in Southern California.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Sullaway Engineering, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	11-50	16 contacts →
	Exact match “Sullaway Engineering is a full-service, national structural engineering firm specializing in commercial structures, sign engineering, large frame structures, LED structures…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Cityworks People Places, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “This business closed on 12/31/24.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Urban Systems Associates, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	11 contacts →
	Exact match “Since 1980, Urban Systems has been successfully designing traffic signals, roundabouts, striping plans, and detour plans, as well as extensively conducting impact and mitigation…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Blue Lake Civil	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	9 contacts →
	Exact match “Blue Lake Civil is a San Diego based engineering consulting firm founded by Maggie Witt and Tim Monroe.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Nova Engineering, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	11-50	8 contacts →
	Exact match “NOVA Engineering provides civil engineering, survey, planning, and stormwater services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	RT Engineering & Associates INC Rtea	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	8 contacts →
	Exact match “RT ENGINEERING & ASSOCIATES, INC -(SBE/DBE/MBE/WBE/WOSB/SLBE/ELBE) In 2011, RT Engineering & Associates, Inc.(RTEA) was founded in the state of California as an S-Corporation by…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Trinity Geotechnical Engineering, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Lyons Warren Engineers & Architects	Exact match	San Diego, United StatesHQ recorded Sep 19, 2026	11-50	5 contacts →
	Exact match “Structural Engineering & Architecture Firm” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Sutra Research & Analytics	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	4 contacts →
	Exact match “We listen first.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	C2 Consulting Collective	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “C2 Consulting Collective is the next generation, full-service Transportation Planning & Traffic Engineering Design firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	HMN Consulting, LLC	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “At HMN Consulting LLC, our mission is to deliver precise, efficient, and fully compliant infrastructure solutions from concept to completion.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Enginuity Consulting	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “We are a boutique consulting Civil Engineering design firm based in San Diego.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Landmark Consulting Lmco	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	11-50	1 contacts →
	Exact match “Landmark Consulting offers a full range of civil engineering and survey services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Mizuta Traffic Consulting	Exact match	San Diego, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Mizuta Traffic Consulting is headed by its firm principal, Marc Mizuta, and specializes in providing clients with transportation planning and traffic engineering solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Rosenex	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “ROSENEX founded in 2024 based in San Diego, California.” 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 “transportation engineering 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 22 of 33 transportation engineering firms based in San Diego, United States

See the full list, filter by size, metro and specialty, and access 1,779 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transportation engineering firms based in San Diego, United States at a glance

As of Sep 19, 2026

54.2%Verified-email coverage

99.5Average contacts per company

1-10Median size (employees)

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 33 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 San Diego, United States whose business descriptions match “transportation engineering 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 1,779 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.

Transportation engineering firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “transportation engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transportation engineering firms are there based in San Diego, United States?

RevenueBase identified 33 company matches for transportation engineering firms associated with San Diego, 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?

Kleinfelder 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 transportation engineering firms?

Houston leads the United States with 121 company records, followed by New York (86) and Austin (59). San Diego has 33.

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 1,779 professional contacts with verified work emails tracked across these 33 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.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.