Company lists · Data refreshed September 2026

Top 25 Earthquake engineering companies based in the United States

Name: Earthquake engineering companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 1,358 companies tracked

RevenueBase identified 1,358 earthquake engineering companies headquartered in the United States as of September 2026 and tracks 17,676 professional contacts across them, including 8,322 with verified work emails. San Francisco is the largest hub.

This list covers earthquake engineering companies headquartered in the 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 15, 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 15, 2026 86% judged on-target in blind review

1,358Companies

17,676Contacts tracked

8,322Verified emails

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The 25 largest earthquake engineering companies based in the United States

Ranked by team size

Top 25 of 1,358 earthquake engineering companies based in the United States, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to earthquake engineering companies: 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	Schnabel Engineering	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 15, 2026	501-1,000	707 contacts →
	Indirect evidence “Schnabel is a trusted partner in building the foundation for project success.” Source: RevenueBase Database · checked Sep 15, 2026
2	Degenkolb Engineers	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 15, 2026	201-500	332 contacts →
	Indirect evidence “Founded in 1940, Degenkolb Engineers’ practice reflects more than eight decades of commitment to expertise, client service, and life-long learning.” Source: RevenueBase Database · checked Sep 15, 2026
3	ENGEO	Indirect evidence	San Ramon, CA, United StatesHQ checked Sep 15, 2026	201-500	282 contacts →
	Indirect evidence “ENGEO Incorporated is an award-winning, employee-owned comprehensive provider of more than 400 geotechnical and civil engineers, geologists, GIS experts, environmental scientists…” Source: RevenueBase Database · checked Sep 15, 2026
4	Ag&e	Partial evidence	Dallas, TX, United StatesHQ checked Sep 15, 2026	201-500	280 contacts →
	Partial evidence “AG & E is the nation's largest structural engineering firm focused on data centers.” Source: RevenueBase Database · checked Sep 15, 2026
5	Modjeski And Masters	Indirect evidence	Mechanicsburg, PA, United StatesHQ checked Sep 15, 2026	201-500	241 contacts →
	Indirect evidence “Modjeski and Masters is a nationwide leader in the design, inspection, and rehabilitation of all bridges types, including long-span and movable structures.” Source: RevenueBase Database · checked Sep 15, 2026
6	Computers And Structures, INC	Strong evidence	Walnut Creek, CA, United StatesHQ checked Sep 15, 2026	51-200	218 contacts →
	Strong evidence “Founded in 1975, Computers and Structures, Inc.(CSI) is recognized globally as the pioneering leader in software tools for structural and earthquake engineering.” Source: RevenueBase Database · checked Sep 15, 2026
7	Geocon	Partial evidence	San Diego, CA, United StatesHQ checked Sep 15, 2026	201-500	197 contacts →
	Partial evidence “Geocon is a California corporation established in 1971 as a professional engineering consulting firm providing comprehensive geotechnical engineering, geotechnical…” Source: RevenueBase Database · checked Sep 15, 2026
8	Magnusson Klemencic Associates	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 15, 2026	51-200	190 contacts →
	Indirect evidence “We engineer the future of the built environment, one structure, skyline, and community at a time.” Source: RevenueBase Database · checked Sep 15, 2026
9	CTL Thompson	Partial evidence	Denver, CO, United StatesHQ checked Sep 15, 2026	201-500	189 contacts →
	Partial evidence “CTL\|Thompson (CTL\|T) has been providing innovative engineering solutions throughout Colorado since 1971.” Source: RevenueBase Database · checked Sep 15, 2026
10	Miyamoto International	Partial evidence	West Sacramento, CA, United StatesHQ checked Sep 15, 2026	201-500	181 contacts →
	Partial evidence “We are a global engineering and disaster management firm providing expert solutions to sustain industries and safeguard communities.” Source: RevenueBase Database · checked Sep 15, 2026
11	Lera Consulting Structural Engineers	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	172 contacts →
	Partial evidence “LERA Consulting Structural Engineers (LERA) is a M/WBE structural engineering firm providing services to architects, owners, contractors, and developers.” Source: RevenueBase Database · checked Sep 15, 2026
12	ESG Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	51-200	169 contacts →
	Indirect evidence “ESG Solutions is a world leader in passive microseismic monitoring.” Source: RevenueBase Database · checked Sep 15, 2026
13	Rizzo International	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 15, 2026	51-200	165 contacts →
	Partial evidence “RIZZO International, Inc.(RIZZO) is a global engineering and consulting firm headquartered in Pittsburgh, Pennsylvania US.” Source: RevenueBase Database · checked Sep 15, 2026
14	Building & Earth	Partial evidence	Birmingham, AL, United StatesHQ checked Sep 15, 2026	201-500	161 contacts →
	Partial evidence “Building & Earth is a professional engineering firm, specializing in geotechnical engineering, construction materials testing, special inspections per I.B.C./I.C.C.” Source: RevenueBase Database · checked Sep 15, 2026
15	Schaefer	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 15, 2026	51-200	158 contacts →
	Indirect evidence “We are open-minded in our approach + thinking, thought leaders with diverse experience.” Source: RevenueBase Database · checked Sep 15, 2026
16	Mueser Rutledge Consulting Engineers	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	157 contacts →
	Partial evidence “Mueser Rutledge Consulting Engineers is a leading engineering firm providing structural design of foundations and waterfront structures and complete geotechnical studies.” Source: RevenueBase Database · checked Sep 15, 2026
17	Haag, A Salas O'brien Company	Partial evidence	Flower Mound, TX, United StatesHQ checked Sep 15, 2026	51-200	157 contacts →
	Partial evidence “Haag is an employee-owned forensic engineering & technical consulting firm, since 1924.” Source: RevenueBase Database · checked Sep 15, 2026
18	Halliwell	Partial evidence	East Providence, RI, United StatesHQ checked Sep 15, 2026	51-200	154 contacts →
	Partial evidence “Founded in 1954, Halliwell is a premier multi-service Engineering, Forensic Architecture, and Construction professional services firm providing comprehensive loss consulting to…” Source: RevenueBase Database · checked Sep 15, 2026
19	Kumar And Associates, INC	Partial evidence	Denver, CO, United StatesHQ checked Sep 15, 2026	51-200	140 contacts →
	Partial evidence “Kumar & Associates provides geotechnical engineering, engineering geology, environmental sciences, construction observation and materials testing services for projects in the…” Source: RevenueBase Database · checked Sep 15, 2026
20	Geotechnical Consultants, INC	Partial evidence	Westerville, OH, United StatesHQ checked Sep 15, 2026	51-200	133 contacts →
	Partial evidence “Geotechnical Consultants, Inc.(GCI) is a professional geo-engineering firm headquartered in greater Columbus, Ohio.” Source: RevenueBase Database · checked Sep 15, 2026
21	YU & Associates	Partial evidence	Elmwood Park, NJ, United StatesHQ checked Sep 15, 2026	51-200	128 contacts →
	Partial evidence “YU & Associates, Inc.(YU), a Verdantas company, is an award-winning, diversified consulting engineering firm providing geotechnical, civil/site, planning, and environmental…” Source: RevenueBase Database · checked Sep 15, 2026
22	Wright Engineers	Partial evidence	United StatesHQ checked Sep 15, 2026	51-200	125 contacts →
	Partial evidence “We deliver structural engineering solutions you can trust alongside exceptional client service.” Source: RevenueBase Database · checked Sep 15, 2026
23	ZFA Structural Engineers	Indirect evidence	Santa Rosa, CA, United StatesHQ checked Sep 15, 2026	51-200	122 contacts →
	Indirect evidence “Since 1974, ZFA Structural Engineers (ZFA) has collaborated with public and private clients to help build better structures.” Source: RevenueBase Database · checked Sep 15, 2026
24	Tierra, Inc. A Certerra Company	Partial evidence	Temple Terrace, FL, United StatesHQ checked Sep 15, 2026	51-200	118 contacts →
	Partial evidence “Established in 1992, Tierra, Inc.(Tierra) is a full-service consulting geotechnical, forensics, environmental, and construction materials testing engineering firm.” Source: RevenueBase Database · checked Sep 15, 2026
25	G2 Consulting Group, LLC	Partial evidence	Troy, MI, United StatesHQ checked Sep 15, 2026	51-200	117 contacts →
	Partial evidence “G2 Consulting Group, LLC is a consulting engineering firm providing geotechnical, geoenvironmental, and construction engineering services.” Source: RevenueBase Database · checked Sep 15, 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: earthquake engineering companies. 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 earthquake engineering companies.
Partial evidence: Its own public description names part of earthquake engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name earthquake engineering companies. 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 1,358 earthquake engineering companies based in the United States

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Earthquake engineering companies based in the United States at a glance

As of Sep 15, 2026

47.1%Verified-email coverage

13.0Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · San Francisco

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

797

11-50

433

51-200

110

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,358 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 earthquake engineering companies, 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 the United States whose own description of what they do matches “earthquake engineering companies”. 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 earthquake engineering companies), 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 earthquake engineering companies, and records with no verified work email. Companies headquartered outside United States 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, 8,322 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 15, 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.

Earthquake engineering companies by metro

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 earthquake engineering companies, 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 earthquake engineering companies are there based in the United States?

RevenueBase identified 1,358 earthquake engineering companies headquartered in the 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?

Schnabel Engineering, headquartered in Glen Allen, tops this list with the largest team on record.

Which city has the most earthquake engineering companies?

San Francisco leads with 32 headquartered companies, followed by Los Angeles (30) and New York (25).

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 8,322 verified decision-maker contacts tracked across these 1,358 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 15, 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.