Company lists · Data refreshed September 2026

Top 25 Seismic retrofit consultants worldwide

Name: Seismic retrofit consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 11,858 companies tracked

RevenueBase identified 11,858 company matches for seismic retrofit consultants worldwide as of September 2026 and tracks 117,211 professional contacts across them, including 41,984 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for seismic retrofit consultants worldwide, 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 29, 2026. Country and city lists for seismic retrofit consultants follow the table.

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 29, 2026 How this list was built

11,858Companies

117,211Contacts tracked

41,984Verified emails

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The 25 largest seismic retrofit consultants worldwide

Ranked by team size

Top 25 of 11,858 company matches for seismic retrofit consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 29, 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 29, 2026 · View company records in RevenueBase
2	Jensen Hughes	Exact match	Columbia, MD, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,655 contacts →
	Exact match “Worldwide, we are most recognized for our leadership in fire protection engineering, a tradition of responsibility we have advanced with pride since 1939.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Simpson Gumpertz & Heger SGH	Exact match	Waltham, MA, United StatesHQ recorded Sep 29, 2026	501-1,000	942 contacts →
	Exact match “Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients’ most complex challenges.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Robert Bird Group	Exact match	Brisbane, AustraliaHQ recorded Sep 29, 2026	501-1,000	872 contacts →
	Exact match “Robert Bird Group (RBG), member of the Surbana Jurong Group, is a specialist structural, civil and construction engineering consultancy with over 800 employees across 12 offices…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	501-1,000	859 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Concrejato Engenharia	Exact match	São Paulo, BrazilHQ recorded Sep 29, 2026	1,001-5,000	765 contacts →
	Exact match “Criada na década de 1970, a Concrejato é especializada na execução de serviços técnicos de retrofit e restauro de edificações, recuperação e reforço estrutural, obras industriais…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	RJC Engineers	Exact match	Vancouver, BC, CanadaHQ recorded Sep 29, 2026	501-1,000	745 contacts →
	Exact match “We are on a mission to futureproof North America.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Schnabel Engineering	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
9	Orbital Engineering, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 29, 2026	501-1,000	528 contacts →
	Exact match “For 50 years, Orbital Engineering has provided the full-service Engineering, Risk Mitigation, and Project Delivery expertise of a large company with the flexibility…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Nova Engineering And Environmental, LLC	Exact match	Kennesaw, GA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
11	RTM Engineering Consultants	Exact match	Schaumburg, IL, United StatesHQ recorded Sep 29, 2026	201-500	516 contacts →
	Exact match “We are an engineering firm that goes beyond a typical consulting role.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Desimone Consulting Engineering	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	501-1,000	512 contacts →
	Exact match “Founded in New York City in 1969, DeSimone provides structural engineering, façade and building envelope consulting, vertical transportation consulting, forensics, structural…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	TTW	Exact match	North Sydney, AustraliaHQ recorded Sep 29, 2026	501-1,000	472 contacts →
	Exact match “Great engineering starts with great people.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	MBP Mcdonough Bolyard Peck	Exact match	Fairfax, VA, United StatesHQ recorded Sep 29, 2026	201-500	467 contacts →
	Exact match “MBP is a multi-disciplined consulting firm that provides a broad range of professional services designed to mitigate risk and optimize value within the built environment.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	JW Consultants LLP	Exact match	Pune, IndiaHQ recorded Sep 29, 2026	201-500	465 contacts →
	Exact match “JW Consultants LLP is among India's top Structural Consulting firms, providing services to architects, owners, contractors, and developers Since our establishment in 1975 as a…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Geo-Technology Associates, Inc. GTA	Exact match	Abingdon, MD, United KingdomHQ recorded Sep 29, 2026	501-1,000	460 contacts →
	Exact match “Geo-Technology Associates, Inc.(GTA) proudly celebrates more than 40 years of service, backed by a team of 600+ professionals-including geotechnical engineers, environmental…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	GBI	Exact match	Montréal, QC, CanadaHQ recorded Sep 29, 2026	201-500	456 contacts →
	Exact match “Notre firme de génie-conseil offre une gamme complète de services d’ingénierie, adaptés aux besoins d’une clientèle diversifiée, tant publique que privée.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Lerch Bates INC	Exact match	Highlands Ranch, CO, United StatesHQ recorded Sep 29, 2026	201-500	441 contacts →
	Exact match “Lerch Bates is the global multidisciplinary technical consultancy saving time and money for those designing, modernizing, investigating, or managing buildings.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Groupe Géotec	Exact match	Quetigny, FranceHQ recorded Sep 29, 2026	501-1,000	441 contacts →
	Exact match “Groupe Géotec, bureau d’études en ingénierie géotechnique et environnementale, créé en 1973, conseille l’ensemble des interlocuteurs de l’acte de construire : maîtres d’ouvrage…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Fairhurst	Exact match	Glasgow, United KingdomHQ recorded Sep 29, 2026	201-500	437 contacts →
	Exact match “Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Postensa	Exact match	México, MexicoHQ recorded Sep 29, 2026	201-500	431 contacts →
	Exact match “Con una historia continua de expansión y éxito que abarca más de seis décadas, Postensa es actualmente una de las compañías Consultoras de Ingeniería Estructural más grandes de…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	DCI Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	201-500	404 contacts →
	Exact match “DCI Engineers has been providing client-focused structural and civil engineering services for over three decades.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Progeo Engenharia Ltda	Exact match	Belo Horizonte, BrazilHQ recorded Sep 29, 2026	501-1,000	400 contacts →
	Exact match “Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Entuitive	Exact match	Calgary, AB, CanadaHQ recorded Sep 29, 2026	201-500	378 contacts →
	Exact match “ENTUITIVE BRINGS ENGINEERING AND INTUITION TOGETHER.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Degenkolb Engineers	Exact match	San Francisco, CA, United StatesHQ recorded Sep 29, 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 29, 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 retrofit consultants”. 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 11,858 seismic retrofit consultants worldwide

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Seismic retrofit consultants worldwide at a glance

As of Sep 29, 2026

35.8%Verified-email coverage

9.9Average contacts per company

1-10Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

7,221

11-50

3,625

51-200

768

201-500

122

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for seismic retrofit consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “seismic retrofit consultants” 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. 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 41,984 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 29, 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 retrofit consultants by location

58 lists · largest first

Every Seismic retrofit consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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

How many seismic retrofit consultants are there worldwide?

RevenueBase identified 11,858 company matches for seismic retrofit consultants worldwide 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 country has the most seismic retrofit consultants?

The United States leads with 2,500 companies, followed by Brazil (1,051) and Italy (630). Every seismic retrofit consultants list by country and city is linked on this page.

Which city has the most seismic retrofit consultants?

Sao Paulo leads with 175 company records, followed by London (81) and New York (70).

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 41,984 professional contacts with verified work emails tracked across these 11,858 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 29, 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.