Company lists · Data refreshed September 2026

Top 25 Geotechnical engineering firms based in San Francisco, United States

Name: Geotechnical engineering 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 16, 2026 41 companies tracked

RevenueBase identified 41 geotechnical engineering firms headquartered in San Francisco, United States as of September 2026 and tracks 963 professional contacts across them, including 431 with verified work emails. Houston is the largest hub.

This list covers geotechnical engineering 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 16, 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 16, 2026 86% judged on-target in blind review

41Companies

963Contacts tracked

431Verified emails

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The 25 largest geotechnical engineering firms based in San Francisco, United States

Ranked by team size

Top 25 of 41 geotechnical engineering firms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical engineering 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	Malcolm Drilling	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	501-1,000	423 contacts →
	Partial evidence “For over six decades, Malcolm Drilling has set the standard in the deep foundation and ground engineering industry, consistently leading through innovation and expertise.” Source: RevenueBase Database · checked Sep 16, 2026
2	Ags, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	57 contacts →
	Partial evidence “Consulting engineers specialized in geosciences, seismic and engineering design.” Source: RevenueBase Database · checked Sep 16, 2026
3	Forell Elsesser	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	51 contacts →
	Partial evidence “Established in 1960, Forell Elsesser is a structural engineering innovator.” Source: RevenueBase Database · checked Sep 16, 2026
4	Freyer & Laureta, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 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 16, 2026
5	FTF Engineering, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “With locations in San Francisco and San Luis Obispo, FTF Engineering is guided by the belief that success comes from providing our clients with creative, thoughtful structural and…” Source: RevenueBase Database · checked Sep 16, 2026
6	Strandberg Engineering	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	24 contacts →
	Partial evidence “Strandberg Engineering specializes in the structural design of residential and commercial structures.” Source: RevenueBase Database · checked Sep 16, 2026
7	Prostruct Engineering	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	1-10	22 contacts →
	Partial evidence “ProStruct Engineering is dedicated to improving homeowners' building experiences across California, Oregon, Washington, Texas, Colorado, Nevada, Georgia, Utah, and Arizona.” Source: RevenueBase Database · checked Sep 16, 2026
8	Azad Engineering PC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	21 contacts →
	Partial 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 16, 2026
9	Municon West Coast	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	20 contacts →
	Partial evidence “Geotechnical and Structural Instrumentation Monitoring.” Source: RevenueBase Database · checked Sep 16, 2026
10	Telamon Engineering Consultants INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	19 contacts →
	Partial 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 16, 2026
11	Original Survey Solutions	Indirect evidence	San Francisco, United StatesHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “Client focused survey firm, based in the San Francisco Bay Area.” Source: RevenueBase Database · checked Sep 16, 2026
12	Murphy Burr Curry, Inc. Structural Engineers	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “Murphy Burr Curry, Inc.(MBC), located in downtown San Francisco, is your go-to firm for the full range of consulting structural engineering services.” Source: RevenueBase Database · checked Sep 16, 2026
13	Infraterra	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	1-10	14 contacts →
	Indirect evidence “InfraTerra is a certified small business (MBE) that specializes in the integration of geologic and seismic hazard evaluation with engineered solutions for lifeline systems, water…” Source: RevenueBase Database · checked Sep 16, 2026
14	Maffei Structural Engineering	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “Founded in 2013 by Joe Maffei, a respected leader in the structural engineering community, Maffei Structural Engineering combines design experience and research to achieve…” Source: RevenueBase Database · checked Sep 16, 2026
15	RES Engineers INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “RES Engineers Inc is a civil engineering company based out of 1250 Missouri St, San Francisco, CA, United States.” Source: RevenueBase Database · checked Sep 16, 2026
16	SFT Construction	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “We Plan, Perform, and Deliver the highest quality of construction projects.” Source: RevenueBase Database · checked Sep 16, 2026
17	Tuan And Robinson Structural Engineers, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “Tuan and Robinson, Structural Engineers, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
18	SF BAY Engineering	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “SF Bay Engineering is a professional structural engineering firm led by a team of licensed structural engineers based in the Bay Area of California.” Source: RevenueBase Database · checked Sep 16, 2026
19	Plm, Pannu Larsen Mccartney, Inc. Structural Engineering	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	1-10	8 contacts →
	Indirect evidence “Pannu Larsen McCartney, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
20	Base Design INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
21	Divis Consulting, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	1-10	7 contacts →
	Partial evidence “Divis Consulting was formed in 2004 to provide project management, engineering, construction observation, and subsurface investigation services as both a subconsultant to…” Source: RevenueBase Database · checked Sep 16, 2026
22	Terra Engineers INC	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	6 contacts →
	Strong evidence “TERRA Engineers is a San Francisco-based, woman-owned small business that provides geotechnical/civil engineering and project/program management services with a focus on…” Source: RevenueBase Database · checked Sep 16, 2026
23	FAR Associates	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “FAR ASSOCIATES specializes in structural engineering design and consultation services for residential projects throughout the San Francisco Bay Area.” Source: RevenueBase Database · checked Sep 16, 2026
24	Structus, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	4 contacts →
	Partial evidence “STRUCTUS, Inc, is an award winning consulting structural engineering firm based in San Francisco.” Source: RevenueBase Database · checked Sep 16, 2026
25	Haushepherd INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “At haushepherd, Inc our primary focus is providing engineering designs to fix common issues experienced by homeowners.” Source: RevenueBase Database · checked Sep 16, 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: geotechnical engineering 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 geotechnical engineering firms.
Partial evidence: Its own public description names part of geotechnical engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geotechnical engineering 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 41 geotechnical engineering firms based in San Francisco, United States

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Geotechnical engineering firms based in San Francisco, United States at a glance

As of Sep 16, 2026

44.8%Verified-email coverage

23.5Average contacts per company

11-50Median size (employees)

397.6%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

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 41 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 geotechnical engineering 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 “geotechnical engineering 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 geotechnical engineering 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 geotechnical engineering 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, 431 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 16, 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.

Geotechnical engineering 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 geotechnical engineering 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 geotechnical engineering firms are there based in San Francisco, United States?

RevenueBase identified 41 geotechnical engineering 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?

Malcolm Drilling, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most geotechnical engineering firms?

Houston leads with 163 headquartered companies, followed by New York (80) and Austin (68).

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 431 verified decision-maker contacts tracked across these 41 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 16, 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.