Company lists · Data refreshed November 2026

Top 25 Seismic compliance engineers based in the United States

RevenueBase identified 719 company matches for seismic compliance engineers associated with the United States as of November 2026 and tracks 6,438 professional contacts across them, including 2,886 with verified work emails. New York is the largest hub.

This list covers company matches for seismic compliance engineers 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 November 6, 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 Nov 6, 2026 How this list was built
719Companies
6,438Contacts tracked
2,886Verified emails
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The 25 largest seismic compliance engineers based in the United States

Ranked by team size
Top 25 of 719 company matches for seismic compliance engineers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDenver, CO, United StatesHQ recorded Nov 6, 2026201-500197 contacts →

Exact match

“CTL|Thompson (CTL|T) has been providing innovative engineering solutions throughout Colorado since 1971.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSanta Rosa, CA, United StatesHQ recorded Nov 6, 202651-200128 contacts →

Exact match

“Since 1974, ZFA Structural Engineers (ZFA) has collaborated with public and private clients to help build better structures.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPotomac, MD, United StatesHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Structural engineering consulting – from exciting visions to inspired reality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSt. Paul, WI, United StatesHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“ERA Structural Engineering is a full-service structural engineering firm that has completed more than projects with a construction cost estimate in excess of $50 billion.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWarren, SC, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“For 60 years, Becht Engineering BT, Inc, has been supporting our “Building Technologies” clientele by providing mechanical, electrical, plumbing, fire protection (MEP & FP)…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchForney, TX, United StatesHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“Eric L.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, TX, United StatesHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“PARADIGM Structural Engineers, Inc, with offices in San Francisco, Chicago, Dallas, and Arlington (Q1 2027), specializes in the structural design of new buildings and the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchFreeport, ME, United StatesHQ recorded Nov 6, 202611-5074 contacts →

Exact match

“Criterium Engineers, one of North America’s leading consulting engineering firms, helps clients better understand the buildings that they own, build, manage, or purchase.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMilwaukee, WI, United StatesHQ recorded Nov 6, 202611-5069 contacts →

Exact match

“CSD Structural Engineers (CSD) is a nationally known and respected structural engineering consulting firm headquartered in Milwaukee, Wisconsin.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMoorestown, NJ, United StatesHQ recorded Nov 6, 202651-20069 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNY, United StatesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“Severud Associates has been providing effective solutions to complex engineering problems since 1928-over 90 years of service to the building profession.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“For over 30 years, Alpha Structural, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLong Beach, CA, United StatesHQ recorded Nov 6, 202611-5058 contacts →

Exact match

“For over 50 years, MHP has provided exceptional structural engineering services to our clients, developing long-term relationships, growing our expertise, and making buildings…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPalo Alto, CA, United StatesHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“Hohbach-Lewin is a structural and civil engineering firm based in Palo Alto with branch offices located in San Francisco, Pasadena and Eugene, Oregon.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHonolulu, HI, United StatesHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“At BASE, we’ve built a reputation as a structural engineering firm that dramatically lowers project risk.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“At Nabih Youssef Associates Structural Engineers (NYA), we apply the world’s most advanced structural engineering approaches to deliver resilient, efficient, and future-ready…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CO, United StatesHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“Established in 1960, Forell Elsesser is a structural engineering innovator.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchClifton Park, NY, United StatesHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“Ryan Biggs Clark Davis Engineering, D.P.C, is one of the largest woman-owned engineering firms in Upstate New York.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWest Palm Beach, FL, United StatesHQ recorded Nov 6, 202611-5047 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPhiladelphia, PA, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“Keast & Hood is a WBE/WOSB structural engineering firm founded in 1953 and located in Philadelphia, PA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Since 1986, San Diego-based SMR has been providing structural design services to a wide range of clients and projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDublin, OH, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“For 40 years, Jezerinac Geers & Associates, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“KM Associates helps architects, engineers, and contractors move projects forward through building code and zoning consulting, project logistics, multiple-agency filling…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWillowbrook, IL, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Raths, Raths & Johnson, Inc.(RRJ) is a nationally recognized engineering, architecture, and forensics consulting firm that provides investigative, design, repair, and testing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPlano, TX, United StatesHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Paragon Structural Engineering, LTD.(PSE) is an engineering firm specializing in structural/civil design,construction phase observation, evaluation, analysis, forensic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 719 seismic compliance engineers based in the United States

See the full list, filter by size, metro and specialty, and access 2,886 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Seismic compliance engineers based in the United States at a glance

As of Nov 6, 2026
44.8%Verified-email coverage
9.0Average contacts per company
1-10Median size (employees)
3.9%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
464
11-50
203
51-200
44
201-500
2
1,001-5,000
1

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 719 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 compliance engineers” 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 2,886 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 November 6, 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.

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 compliance engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many seismic compliance engineers are there based in the United States?

RevenueBase identified 719 company matches for seismic compliance engineers associated with the United States as of November 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?

CTL Thompson tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most seismic compliance engineers?

New York leads with 28 company records, followed by Los Angeles (25) and San Francisco (22).

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 2,886 professional contacts with verified work emails tracked across these 719 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 November 6, 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.