Company lists · Data refreshed September 2026

Top 25 Seismic engineering companies based in the United States

Name: Seismic 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 17, 2026 1,552 companies tracked

RevenueBase identified 1,552 company matches for seismic engineering companies associated with the United States as of September 2026 and tracks 26,497 professional contacts across them, including 12,390 with verified work emails. Houston is the largest hub.

This list covers company matches for seismic engineering companies associated with the 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 17, 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 17, 2026 How this list was built

1,552Companies

26,497Contacts tracked

12,390Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest seismic engineering companies based in the United States

Ranked by team size

Top 25 of 1,552 company matches for seismic engineering companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,210 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Schnabel Engineering	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 17, 2026	501-1,000	707 contacts →
	Exact match “Schnabel is a trusted partner in building the foundation for project success.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Raba Kistner, INC	Exact match	San Antonio, TX, United StatesHQ recorded Sep 17, 2026	501-1,000	582 contacts →
	Exact match “Founded in 1968, Raba Kistner Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Saexploration	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	201-500	521 contacts →
	Exact match “SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Nova Engineering And Environmental, LLC	Exact match	Kennesaw, GA, United StatesHQ recorded Sep 17, 2026	501-1,000	518 contacts →
	Exact match “Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Collins Engineers, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	201-500	432 contacts →
	Exact match “In 1979, Collins Engineers, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Degenkolb Engineers	Exact match	San Francisco, CA, United StatesHQ recorded Sep 17, 2026	201-500	332 contacts →
	Exact match “Founded in 1940, Degenkolb Engineers’ practice reflects more than eight decades of commitment to expertise, client service, and life-long learning.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Hillis-Carnes Engineering Associates, INC	Exact match	Annapolis Junction, MD, United StatesHQ recorded Sep 17, 2026	201-500	299 contacts →
	Exact match “Hillis-Carnes Engineering Associates, Inc.(HCEA) is a Mid-Atlantic based, multi-disciplined consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	ENGEO	Exact match	San Ramon, CA, United StatesHQ recorded Sep 17, 2026	201-500	282 contacts →
	Exact match “ENGEO Incorporated is an award-winning, employee-owned comprehensive provider of more than 400 geotechnical and civil engineers, geologists, GIS experts, environmental scientists…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Ag&e	Exact match	Dallas, TX, United StatesHQ recorded Sep 17, 2026	201-500	280 contacts →
	Exact match “AG & E is the nation's largest structural engineering firm focused on data centers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Modjeski And Masters	Exact match	Mechanicsburg, PA, United StatesHQ recorded Sep 17, 2026	201-500	241 contacts →
	Exact match “Modjeski and Masters is a nationwide leader in the design, inspection, and rehabilitation of all bridges types, including long-span and movable structures.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Computers And Structures, INC	Exact match	Walnut Creek, CA, United StatesHQ recorded Sep 17, 2026	51-200	218 contacts →
	Exact match “Founded in 1975, Computers and Structures, Inc.(CSI) is recognized globally as the pioneering leader in software tools for structural and earthquake engineering.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Geotek	Exact match	Las Vegas, NV, United StatesHQ recorded Sep 17, 2026	201-500	215 contacts →
	Exact match “Incorporated in 1997, GeoTek is a full service consulting engineering firm specializing in geotechnical engineering, construction materials testing, special inspection, and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Geocon	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 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 17, 2026 · View company records in RevenueBase
15	Magnusson Klemencic Associates	Exact match	Seattle, WA, United StatesHQ recorded Sep 17, 2026	51-200	190 contacts →
	Exact match “We engineer the future of the built environment, one structure, skyline, and community at a time.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	CTL Thompson	Exact match	Denver, CO, United StatesHQ recorded Sep 17, 2026	201-500	189 contacts →
	Exact match “CTL\|Thompson (CTL\|T) has been providing innovative engineering solutions throughout Colorado since 1971.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Miyamoto International	Exact match	West Sacramento, CA, United StatesHQ recorded Sep 17, 2026	201-500	181 contacts →
	Exact match “We are a global engineering and disaster management firm providing expert solutions to sustain industries and safeguard communities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	United Consulting	Exact match	Norcross, GA, United StatesHQ recorded Sep 17, 2026	51-200	176 contacts →
	Exact match “United Consulting is a multi-disciplined engineering consulting firm located in Norcross, Georgia.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Lera Consulting Structural Engineers	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	172 contacts →
	Exact match “LERA Consulting Structural Engineers (LERA) is a M/WBE structural engineering firm providing services to architects, owners, contractors, and developers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Certerra RMA Group	Exact match	Rancho Cucamonga, CA, United StatesHQ recorded Sep 17, 2026	201-500	172 contacts →
	Exact match “Certerra RMA Group is a client-centered geotechnical engineering and materials testing consulting firm with office and laboratory facilities located throughout California and Las…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	ESG Solutions	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	51-200	169 contacts →
	Exact match “ESG Solutions is a world leader in passive microseismic monitoring.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Rizzo International	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 17, 2026	51-200	165 contacts →
	Exact match “RIZZO International, Inc.(RIZZO) is a global engineering and consulting firm headquartered in Pittsburgh, Pennsylvania US.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Rocksol Consulting Group, INC	Exact match	Thornton, CO, United StatesHQ recorded Sep 17, 2026	201-500	161 contacts →
	Exact match “Since 1996, RockSol has earned an outstanding reputation for engineering excellence, customer service, and quality assurance.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Building & Earth	Exact match	Birmingham, AL, United StatesHQ recorded Sep 17, 2026	201-500	161 contacts →
	Exact match “Building & Earth is a professional engineering firm, specializing in geotechnical engineering, construction materials testing, special inspections per I.B.C./I.C.C.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Mueser Rutledge Consulting Engineers	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	157 contacts →
	Exact match “Mueser Rutledge Consulting Engineers is a leading engineering firm providing structural design of foundations and waterfront structures and complete geotechnical studies.” Recorded in the RevenueBase company graph · Sep 17, 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 “seismic engineering 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 25 of 1,552 seismic engineering companies based in the United States

See the full list, filter by size, metro and specialty, and access 12,390 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Seismic engineering companies based in the United States at a glance

As of Sep 17, 2026

46.8%Verified-email coverage

17.1Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

867

11-50

495

51-200

157

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 1,552 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 the United States whose business descriptions match “seismic engineering 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 12,390 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 17, 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.

Seismic engineering companies by metro

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

How many seismic engineering companies are there based in the United States?

RevenueBase identified 1,552 company matches for seismic engineering companies associated with the 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?

ECS Group Of Companies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most seismic engineering companies?

Houston leads with 57 company records, followed by San Francisco (30) and New York (26).

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 12,390 professional contacts with verified work emails tracked across these 1,552 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,552 seismic engineering companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Seismic engineering companies by geography

Browse the directory

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.