Company lists · Data refreshed November 2026

Top 25 Heritage site conservation companies worldwide

RevenueBase identified 2,456 company matches for heritage site conservation companies worldwide as of November 2026 and tracks 20,708 professional contacts across them, including 6,092 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for heritage site conservation companies 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 November 6, 2026. Country and city lists for heritage site conservation companies 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 Nov 6, 2026 How this list was built
2,456Companies
20,708Contacts tracked
6,092Verified emails
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The 25 largest heritage site conservation companies worldwide

Ranked by team size
Top 25 of 2,456 company matches for heritage site conservation companies worldwide, 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 matchBoston, MA, United StatesHQ recorded Nov 6, 2026201-500502 contacts →

Exact match

“Founded by landscape architect Charles Eliot in 1891, The Trustees has, for more than 125 years, been a catalyst for important ideas, endeavors, and progress in Massachusetts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAmersfoort, NetherlandsHQ recorded Nov 6, 2026201-500469 contacts →

Exact match

“The Cultural Heritage Agency of the Netherlands helps other parties to get the best out of our heritage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNeuilly-sur-seine, FranceHQ recorded Nov 6, 202651-200439 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPhoenix, AZ, United StatesHQ recorded Nov 6, 2026501-1,000407 contacts →

Exact match

“We are a cultural resource management firm operating across the United States and internationally, dedicated to stewarding our shared heritage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPraha 1, Czech RepublicHQ recorded Nov 6, 20261,001-5,000337 contacts →

Exact match

“Národní památkový ústav (dále jen NPÚ) je odbornou a výzkumnou organizací státní památkové péče s celostátní působností.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500285 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLimoges, FranceHQ recorded Nov 6, 2026201-500227 contacts →

Exact match

“La société Éveha, bureau d'études et de valorisations archéologiques, est le principal opérateur privé en archéologie préventive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchParis, FranceHQ recorded Nov 6, 202651-200203 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202651-200202 contacts →

Exact match

“Headland Archaeology is a leading independent company providing heritage consultancy and archaeological contracting services to a wide spectrum of clients within the development…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGennevilliers, FranceHQ recorded Nov 6, 2026201-500194 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSuresnes, FranceHQ recorded Nov 6, 2026201-500152 contacts →

Exact match

“H.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchParis, FranceHQ recorded Nov 6, 20261,001-5,000145 contacts →

Exact match

“Ateliers de France is an international multi trades group focused on construction and preservation of public monuments, listed buildings, palaces, castles, theatres, cathedrals…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchStansted, United KingdomHQ recorded Nov 6, 202651-200144 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWeesp, NetherlandsHQ recorded Nov 6, 202651-200134 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000125 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNew ZealandHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“Heritage New Zealand Pouhere Taonga is the leading national historic heritage agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBrooklyn, NY, United StatesHQ recorded Nov 6, 2026201-500117 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchToronto, ON, CanadaHQ recorded Nov 6, 202651-200111 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchToronto, QC, CanadaHQ recorded Nov 6, 202651-200105 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20097 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPyrmont, AustraliaHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAmeide, NetherlandsHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“Koninklijke Woudenberg | a JAJO company is een Erkend Restauratiebouwbedrijf (ERB) en aangesloten bij de Vakgroep Restauratie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBrisbane City, AustraliaHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“Everick Heritage is one of Australia’s leading heritage consultancies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact match's-hertogenbosch, NetherlandsHQ recorded Nov 6, 202651-20080 contacts →

Exact match

“BAAC werd in de jaren negentig opgericht als een samenwerkingsverband van bouwhistorici.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSaint-brice-courcelles, FranceHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Fondée en 1830 à Reims, la société Léon Noël s’oriente dès sa création vers la restauration de monuments anciens, sous l’impulsion de Pierre Noël, Ingénieur passionné…”

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

Showing 25 of 2,456 heritage site conservation companies worldwide

See the full list, filter by size, metro and specialty, and access 6,092 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heritage site conservation companies worldwide at a glance

As of Nov 6, 2026
29.4%Verified-email coverage
8.4Average contacts per company
1-10Median size (employees)
2.2%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,476
11-50
677
51-200
185
201-500
39
501-1,000
12
1,001-5,000
4
10001+
1

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 heritage site conservation companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “heritage site conservation 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. 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 6,092 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.

Heritage site conservation companies by location

14 lists · largest first

Every Heritage site conservation companies 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 “heritage site conservation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heritage site conservation companies are there worldwide?

RevenueBase identified 2,456 company matches for heritage site conservation companies worldwide 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?

The Trustees Of Reservations tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most heritage site conservation companies?

The United Kingdom leads with 369 companies, followed by France (262) and the United States (231). Every heritage site conservation companies list by country and city is linked on this page.

Which city has the most heritage site conservation companies?

London leads with 55 company records, followed by Paris (31) and New York (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 6,092 professional contacts with verified work emails tracked across these 2,456 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.