Company lists · Data refreshed September 2026

Top 25 Historic preservation engineers worldwide

RevenueBase identified 3,372 historic preservation engineers worldwide as of September 2026 and tracks 20,984 professional contacts across them, including 6,825 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers historic preservation engineers worldwide, 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 20, 2026. Country and city lists for historic preservation engineers follow the table.

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 20, 2026 86% judged on-target in blind review
3,372Companies
20,984Contacts tracked
6,825Verified emails
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The 25 largest historic preservation engineers worldwide

Ranked by team size
Top 25 of 3,372 historic preservation engineers worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to historic preservation engineers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNeuilly-sur-seine, FranceHQ checked Sep 20, 202651-200396 contacts →

Indirect evidence

“Fondation du Patrimoine is a French non profit organization, created by law in 1996, to promote and raise funds to restore public and private heritage.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 20, 2026201-500326 contacts →

Indirect evidence

“It’s not just what we build, but why.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 20, 2026201-500264 contacts →

Indirect evidence

“We are an innovative archaeology and built heritage practice with 50 years of experience in the sector.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceWashington, DC, United StatesHQ checked Sep 20, 202651-200225 contacts →

Indirect evidence

“Creators of vital places.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceParis, FranceHQ checked Sep 20, 202651-200198 contacts →

Indirect evidence

“Le Groupe Histoire & Patrimoine, filiale du Groupe Altarea, est l’opérateur de référence de l’immobilier patrimonial.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceGennevilliers, FranceHQ checked Sep 20, 2026201-500182 contacts →

Indirect evidence

“Lefèvre est une entreprise qui a vu le jour en 1944 pour répondre aux besoins de reconstruction et de restauration du patrimoine architectural français.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceBrooklyn, NY, United StatesHQ checked Sep 20, 2026201-500147 contacts →

Indirect evidence

“Since 1978 EverGreene Architectural Arts has been providing pre-construction, construction and new design services for some of the world's most memorable buildings.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceStansted, United KingdomHQ checked Sep 20, 202651-200139 contacts →

Indirect evidence

“City & Country is a family owned business, founded in 1962, which typically operates in the South and prime markets around key cities.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceSuresnes, FranceHQ checked Sep 20, 2026201-500133 contacts →

Indirect evidence

“H.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202651-200131 contacts →

Indirect evidence

“Our specialist teams deliver high quality construction services for the finest landmark and heritage buildings, alongside state-of-the-art science and higher education facilities.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceMauges Sur Loire, FranceHQ checked Sep 20, 202651-200130 contacts →

Indirect evidence

“The Perrault Worskhops are in charge of restoring heritage buildings, reproducing works of art, and making traditional creations in carpentry, cabinet-making, wood framing…”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceWeesp, NetherlandsHQ checked Sep 20, 202651-200126 contacts →

Indirect evidence

“RAAP is een onafhankelijk onderzoeks- en adviesbureau voor archeologie, cultuurhistorie en erfgoedzorg.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceMontreal, QC, CanadaHQ checked Sep 20, 2026201-500118 contacts →

Indirect evidence

“St-Denis Thompson est reconnue pour son expertise en restauration de bâtiments et en réfection de structures de maçonnerie de pierres et de brique ou de béton.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-200110 contacts →

Indirect evidence

“ASI is the largest archaeological and cultural heritage consulting firm in Ontario with over thirty years experience in the production and dissemination of knowledge concerning…”

Source: RevenueBase Database · checked Sep 20, 2026
15Strong evidenceMadrid, SpainHQ checked Sep 20, 2026501-1,000109 contacts →

Strong evidence

“KALAM is one of the most specialized and recognized companies for our work in historic preservation and building rehabilitation.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 202651-200103 contacts →

Indirect evidence

“ERA Architects Inc.(ERA) is an award-winning architecture and planning firm focused on conservation through reactivation.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceChicago, IL, United StatesHQ checked Sep 20, 202651-200100 contacts →

Partial evidence

“At Klein & Hoffman, we work collaboratively to deliver value-driven architectural restoration and structural engineering solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceBrazilHQ checked Sep 20, 2026201-500100 contacts →

Indirect evidence

“Nossas obras nunca são lugar comum.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceLondon, United KingdomHQ checked Sep 20, 202651-20097 contacts →

Partial evidence

“Paye Stonework and Restoration are one of the UK’s leading companies in the field of high quality stone and brick facades, refurbishment and adaptation of historic buildings.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidencePyrmont, AustraliaHQ checked Sep 20, 202651-20094 contacts →

Indirect evidence

“Extent Heritage is a leader in heritage and archaeological consulting, providing heritage advice to Australia and the Asia Pacific region for more than two decades.”

Source: RevenueBase Database · checked Sep 20, 2026
21Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20094 contacts →

Strong evidence

“SUPERSTRUCTURES Engineers + Architects is dedicated to preservation of buildings and infrastructure.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 20, 202651-20091 contacts →

Indirect evidence

“Szerelmey was founded in 1855 and is one of the oldest established restoration and new build specialist contractors.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 20, 202611-5082 contacts →

Indirect evidence

“BOEi is een non-profit organisatie die zich bezighoudt met herbestemmen van industrieel, religieus en agrarisch erfgoed.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceRichmond, VA, United StatesHQ checked Sep 20, 202651-20081 contacts →

Partial evidence

“A nationally recognized architecture, interior design, preservation, and planning firm, Glavé & Holmes Architecture has served clients across the United States for six decades.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceSão Paulo, BrazilHQ checked Sep 20, 2026201-50080 contacts →

Indirect evidence

“Atuação em obras de proteção e recuperação de estruturas, restauro de patrimônio histórico e reconversão de edifícios e equipamentos urbanos.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 3,372 historic preservation engineers worldwide

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Historic preservation engineers worldwide at a glance

As of Sep 20, 2026
32.5%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
2,121
11-50
942
51-200
214
201-500
34
501-1,000
13
1,001-5,000
2
10001+
1

Email recency is reported on each country list linked below.

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 historic preservation engineers, 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.
Coverage
Every country. Country and city lists for historic preservation engineers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “historic preservation engineers”. 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 historic preservation engineers), 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 historic preservation engineers, and records with no verified work email.
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, 6,825 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 20, 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.

Historic preservation engineers by location

15 lists · largest first

Every Historic preservation engineers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 historic preservation engineers, 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 historic preservation engineers are there worldwide?

RevenueBase identified 3,372 historic preservation engineers worldwide 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?

Fondation DU Patrimoine, headquartered in Neuilly-Sur-Seine, tops this list with the largest team on record.

Which country has the most historic preservation engineers?

The United Kingdom leads with 526 companies, followed by the United States (456) and France (342). Every historic preservation engineers list by country and city is linked on this page.

Which city has the most historic preservation engineers?

London leads with 84 headquartered companies, followed by Paris (54) and New York (41).

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 6,825 verified decision-maker contacts tracked across these 3,372 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 20, 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.