Company lists · Data refreshed September 2026

Top 16 Geotechnical engineering staffing companies based in San Francisco, United States

Name: Geotechnical engineering staffing companies 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 28, 2026 25 companies tracked

RevenueBase identified 25 company matches for geotechnical engineering staffing companies associated with San Francisco, United States as of September 2026 and tracks 771 professional contacts across them, including 312 with verified work emails. Across the United States, Houston is the largest hub for this category (136 companies); San Francisco has 25.

This list covers company matches for geotechnical engineering staffing companies associated with San Francisco, 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 28, 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 28, 2026 How this list was built

25Companies

771Contacts tracked

312Verified emails

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The 16 largest geotechnical engineering staffing companies based in San Francisco, United States

Ranked by team size

Top 16 of 25 company matches for geotechnical engineering staffing companies based in San Francisco, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Malcolm Drilling	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	501-1,000	423 contacts →
	Exact match “For over six decades, Malcolm Drilling has set the standard in the deep foundation and ground engineering industry, consistently leading through innovation and expertise.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Ags, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	11-50	57 contacts →
	Exact match “Consulting engineers specialized in geosciences, seismic and engineering design.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Diligente Technologies	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	51-200	46 contacts →
	Exact match “Diligente Technologies follows a streamlined screening process that enables us to target the right individuals from the very beginning.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Freyer & Laureta, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Freyer & Laureta, Inc.(F&L) is an award-winning consulting engineering firm with offices in San Francisco, Novato, Cupertino, and Alameda.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Azad Engineering PC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Municon West Coast	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “Geotechnical and Structural Instrumentation Monitoring.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Telamon Engineering Consultants INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	11-50	19 contacts →
	Exact match “Telamon Engineering Consultants, Inc.(TECI), established in 1993 (21 years), provides professional civil engineering, land surveying, project management and agency permitting…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Infraterra	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	1-10	14 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	RES Engineers INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “RES Engineers Inc is a civil engineering company based out of 1250 Missouri St, San Francisco, CA, United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	SFT Construction	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “We Plan, Perform, and Deliver the highest quality of construction projects.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Terra Engineers INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	11-50	6 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Clean Power Staffing	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “We provide temporary or permanent employees to companies in the energy industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Haushepherd INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	1-10	3 contacts →
	Exact match “At haushepherd, Inc our primary focus is providing engineering designs to fix common issues experienced by homeowners.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	ONE Design SF	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “Since 2011, ONE Design has provided structural engineering and design services in San Francisco and the Bay Area; we know nothing is more important than your home, building or…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Ryan Joyce Structural Design	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Sigma Engineering Laboratories	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “SIGMA Engineering Laboratories offers construction inspection, materials testing, geotechnical engineering and quality control services.” Recorded in the RevenueBase company graph · Sep 28, 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 “geotechnical engineering staffing companies”. 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 16 of 25 geotechnical engineering staffing companies based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 312 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 28, 2026

40.5%Verified-email coverage

30.8Average contacts per company

11-50Median size (employees)

Sep 28, 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 25 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 Francisco, United States whose business descriptions match “geotechnical engineering staffing companies” 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 312 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 28, 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.

Geotechnical engineering staffing companies 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 “geotechnical engineering staffing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geotechnical engineering staffing companies are there based in San Francisco, United States?

RevenueBase identified 25 company matches for geotechnical engineering staffing companies associated with San Francisco, 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?

Malcolm Drilling 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 geotechnical engineering staffing companies?

Houston leads the United States with 136 company records, followed by New York (60) and Austin (48). San Francisco has 25.

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 312 professional contacts with verified work emails tracked across these 25 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 28, 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.