Company lists · Data refreshed September 2026

Top 23 Geotechnical engineering staffing companies based in San Diego, United States

Name: Geotechnical engineering staffing companies 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 28, 2026 37 companies tracked

RevenueBase identified 37 company matches for geotechnical engineering staffing companies associated with San Diego, United States as of September 2026 and tracks 1,236 professional contacts across them, including 545 with verified work emails. Across the United States, Houston is the largest hub for this category (136 companies); San Diego has 37.

This list covers company matches for geotechnical engineering staffing companies 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 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

37Companies

1,236Contacts tracked

545Verified emails

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The 23 largest geotechnical engineering staffing companies based in San Diego, United States

Ranked by team size

Top 23 of 37 company matches for geotechnical engineering staffing companies based in San Diego, 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	Ninyo & Moore, A Socotec Company	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	501-1,000	449 contacts →
	Exact match “Ninyo & Moore was acquired by SOCOTEC US.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Geocon	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	201-500	197 contacts →
	Exact match “Geocon is a California corporation established in 1971 as a professional engineering consulting firm providing comprehensive geotechnical engineering, geotechnical…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Contractors And Builders	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	11-50	142 contacts →
	Exact match “Contractors & Builders is focused on developing comprehensive staffing solutions for the construction industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Bwe, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	Nova Services Barnett Quality Control Services	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	51-200	64 contacts →
	Exact match “NOVA Services (NOVA) is a State of California Small Business Enterprise (SBE) and Disabled Veteran Business Enterprise (DVBE) as well as a Service-Disabled, Veteran-Owned Small…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Scst, LLC	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	51-200	52 contacts →
	Exact match “SCST,LLC is now Atlas.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Tsac Engineering	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	51-200	29 contacts →
	Exact match “We are passionate about providing our clients with the best engineering and surveying services in the industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Christian Wheeler Engineering	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “CHRISTIAN WHEELER ENGINEERING is an independent, locally-owned and operated engineering firm that is a major provider of geotechnical consulting, construction observation, special…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Caltek Staffing	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	51-200	20 contacts →
	Exact match “Founded in 2002 by two career recruiters, CalTek Staffing is a premier manufacturing, technical, IT and engineering staffing and recruiting firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	TKJ Structural Engineering	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	1-10	18 contacts →
	Exact match “TKJ Structural Engineering provides structural design and seismic engineering consulting services throughout Southern California.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Sullaway Engineering, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
12	Pacific Drilling CO	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “Welcome to Pacific Drilling Company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Terrapacific Consultants, Incorporated	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	1-10	9 contacts →
	Exact match “TerraPacific Consultants, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Blue Lake Civil	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
15	Trinity Geotechnical Engineering, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	1-10	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Pb&a, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “We are a Structural Engineering firm that over the past 40 years has devoted our energies to specializing in the design of Earth Retention and Construction Support Systems…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Geotechnical Exploration, INC	Exact match	San Diego, United StatesHQ recorded Sep 28, 2026	11-50	4 contacts →
	Exact match “A full-service soil engineering firm providing pre-development exploration services, grading observation and testing services, hydrogeologic water resource and forensic…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Premier Construction Recruiting LLC	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Premier specializes in executive and mid-level searches for the construction industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Colorado Resource Solutions	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	11-50	3 contacts →
	Exact match “Colorado Resource Solutions provides recruiting, temporary staffing, contract, contract-to-hire, or direct hire employees to commercial and governmental organizations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Engineering ONE Group, INC	Exact match	San Diego, 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
21	Terracosta, An Engeo Company	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	11-50	2 contacts →
	Exact match “TerraCosta, an ENGEO Company, is a unique geotechnical/civil consulting firm specializing in the design of a broad range of earth and marine systems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	RA Structural Engineering Of SAN Diego	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “RA Structural Engineering of San Diego, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Talent Compliance Consulting Services	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	11-50	1 contacts →
	Exact match “We specialize in recruiting Engineering, Manufacturing, Scientific and Technical skills sets for full time or contract openings.” 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 23 of 37 geotechnical engineering staffing companies based in San Diego, United States

See the full list, filter by size, metro and specialty, and access 545 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 28, 2026

44.1%Verified-email coverage

33.4Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 37 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 “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 545 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 Diego, United States?

RevenueBase identified 37 company matches for geotechnical engineering staffing companies 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?

Ninyo & Moore, A Socotec Company 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 Diego has 37.

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 545 professional contacts with verified work emails tracked across these 37 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.