Company lists · Data refreshed September 2026

Top 25 Transportation design consulting firms based in San Francisco, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 45 companies tracked

RevenueBase identified 45 transportation design consulting firms headquartered in San Francisco, United States as of September 2026 and tracks 12,588 professional contacts across them, including 3,030 with verified work emails. Houston is the largest hub.

This list covers transportation design consulting firms headquartered in San Francisco, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

45Companies

12,588Contacts tracked

3,030Verified emails

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The 25 largest transportation design consulting firms based in San Francisco, United States

Ranked by team size

Top 25 of 45 transportation design consulting firms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to transportation design consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	URS Corporation, An Aecom Company	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	10001+	7,706 contacts →
	Indirect evidence “URS Corporation operations are now affiliated with AECOM.” Source: RevenueBase Database · checked Sep 21, 2026
2	TYLIN	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,067 contacts →
	Partial evidence “As a global engineering firm, we design infrastructure solutions that connect and elevate communities.” Source: RevenueBase Database · checked Sep 21, 2026
3	PGH Wong Engineering, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	286 contacts →
	Indirect evidence “Founded in 1985, PGH Wong Engineering, Inc.(PGH Wong) is one of the nation’s leading firms in the transit industry.” Source: RevenueBase Database · checked Sep 21, 2026
4	Nelson Nygaard Consulting Associates	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	162 contacts →
	Partial evidence “Nelson\Nygaard Consulting Associates, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
5	TED Jacob Engineering Group	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	107 contacts →
	Indirect evidence “Leading By Innovation Ted Jacob Engineering Group (TJEG) is a multinational engineering consultancy with offices and active projects spread across North America, the Middle East…” Source: RevenueBase Database · checked Sep 21, 2026
6	Cornerstone Concilium, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	36 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
7	Leighfisher	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	32 contacts →
	Partial evidence “LeighFisher is a global management consulting firm that combines deep market-specific knowledge with specialized expertise in business advisory, facility and operational planning…” Source: RevenueBase Database · checked Sep 21, 2026
8	Freyer & Laureta, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	28 contacts →
	Partial evidence “Freyer & Laureta, Inc.(F&L) is an award-winning consulting engineering firm with offices in San Francisco, Novato, Cupertino, and Alameda.” Source: RevenueBase Database · checked Sep 21, 2026
9	FMG Company	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “FMG + COMPANY is an award-winning firm focusing on delivering high-value sustainable architecture design, program & project management services to transit, aviation and civic…” Source: RevenueBase Database · checked Sep 21, 2026
10	Mitchell Engineering	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	24 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
11	Azad Engineering PC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “AZAD is a professional engineering firm that provides a full range of quality and cost-effective program and construction management (PM/CM) services on public works projects.” Source: RevenueBase Database · checked Sep 21, 2026
12	Lotus Water	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “Our staff of registered civil engineers, designers, planners, and LEED® accredited professionals provide water, civil engineering, and integrated design services to private and…” Source: RevenueBase Database · checked Sep 21, 2026
13	Telamon Engineering Consultants INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “Telamon Engineering Consultants, Inc.(TECI), established in 1993 (21 years), provides professional civil engineering, land surveying, project management and agency permitting…” Source: RevenueBase Database · checked Sep 21, 2026
14	Urban Design Consulting Engineers Udce	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Partial evidence “Formed in 2005 by highly experienced professionals in the industry, UDCE is an open-culture, consulting engineering firm dedicated to the success of our clients, team, and…” Source: RevenueBase Database · checked Sep 21, 2026
15	Olmm Consulting Engineers	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “OLMM is a reputable and award-winning structural engineering firm with offices in San Francisco and Oakland.” Source: RevenueBase Database · checked Sep 21, 2026
16	SSC INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “SSC Inc, Engineering Excellence, Delivered.” Source: RevenueBase Database · checked Sep 21, 2026
17	CHS Consulting Group	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Strong evidence “CHS Consulting Group is a multimodal transportation planning and engineering firm dedicated to creating safe, smart, and efficient transportation systems for our society.” Source: RevenueBase Database · checked Sep 21, 2026
18	CPM Associates, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	10 contacts →
	Indirect evidence “In 2022, CPM became Consor, integrating our decades of experience delivering program management, project management, cost controls, and construction management services for…” Source: RevenueBase Database · checked Sep 21, 2026
19	Salimi Management, LLC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	9 contacts →
	Indirect evidence “Salimi Management, LLC dba Salimi Construction Management (Salimi CM) provides Program/Project/Construction management services in the San Francisco Bay Area, Sacramento, Central…” Source: RevenueBase Database · checked Sep 21, 2026
20	System Metrics Group, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “System Metrics Group, Inc.(SMG) is a California-certified and Metro-certified small business (SBE), CUCP-certified Disadvantaged Business Enterprise (DBE), and California-based…” Source: RevenueBase Database · checked Sep 21, 2026
21	Bertco, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “Civil Engineering Contractor based in San Francisco, California” Source: RevenueBase Database · checked Sep 21, 2026
22	Robin Chiang & CO	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
23	Sage Consulting Engineers INC	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Strong evidence “Sage Consulting Engineers specializes in civil engineering design for land development and municipal infrastructure improvement projects.” Source: RevenueBase Database · checked Sep 21, 2026
24	Urban Innovate	Partial evidence	San Francisco, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “Urban Innovate helps cities and public transit agencies design mobility systems that people actually want to use.” Source: RevenueBase Database · checked Sep 21, 2026
25	Prism Engineering Expert Witness In Traffic Engineering	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “WHAT DIFFERENTIATES PRISM ENGINEERING?” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: transportation design consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names transportation design consulting firms.
Partial evidence: Its own public description names part of transportation design consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transportation design consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 45 transportation design consulting firms based in San Francisco, United States

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Transportation design consulting firms based in San Francisco, United States at a glance

As of Sep 21, 2026

24.1%Verified-email coverage

279.7Average contacts per company

11-50Median size (employees)

255.6%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 45 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among transportation design consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in San Francisco, United States whose own description of what they do matches “transportation design consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names transportation design consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among transportation design consulting firms, and records with no verified work email. Companies headquartered outside San Francisco are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,030 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Transportation design consulting firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names transportation design consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many transportation design consulting firms are there based in San Francisco, United States?

RevenueBase identified 45 transportation design consulting firms headquartered in San Francisco, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

URS Corporation, An Aecom Company, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most transportation design consulting firms?

Houston leads with 115 headquartered companies, followed by New York (92) and Chicago (65).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,030 verified decision-maker contacts tracked across these 45 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, 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.