Company lists · Data refreshed November 2026

Top 25 Heritage conservation companies worldwide

RevenueBase identified 1,660 company matches for heritage conservation companies worldwide as of November 2026 and tracks 14,005 professional contacts across them, including 3,985 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for heritage 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 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
1,660Companies
14,005Contacts tracked
3,985Verified emails
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The 25 largest heritage conservation companies worldwide

Ranked by team size
Top 25 of 1,660 company matches for heritage 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 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
7Exact 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
8Exact 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
9Exact 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
10Exact 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
11Exact 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
12Exact 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
13Exact 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
14Exact 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
15Exact matchUnited KingdomHQ recorded Nov 6, 2026201-50078 contacts →

Exact match

“Heritage Lottery Fund (HLF) sustains and transforms a wide range of heritage through innovative investment in projects with a lasting impact on people and places.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact matchAmersfoort, NetherlandsHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“Nationaal Restauratiefonds biedt eigenaren en beheerders van monumenten financiële ondersteuning bij het restaureren en onderhouden van hun pand.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCruz Quebrada, PortugalHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“A ERA é uma empresa de referência portuguesa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchKilrush, IrelandHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“AMS is an archaeological and heritage consultancy specialising in early heritage assessment works and archaeological project management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHaymarket, AustraliaHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“GML Heritage is a leading Australian heritage consultancy with offices in Sydney, Melbourne and Canberra.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchParis, FranceHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“Comptant parmi les principales agences d’architecture françaises, 2BDM Architectes est une structure unique en son genre, dédiée au patrimoine ancien (monuments et jardins…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, ON, CanadaHQ recorded Nov 6, 202611-5060 contacts →

Exact match

“TMHC embraces the respectful conservation of Ontario's cultural heritage, working in partnership with municipalities, public and private organizations, Indigenous and descendent…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWarsaw, PolandHQ recorded Nov 6, 2026201-50060 contacts →

Exact match

“Naszą misją jest tworzenie podstaw dla zrównoważonej ochrony dziedzictwa kulturowego, by zachować jak najwięcej dla przyszłych pokoleń.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchStamford, United KingdomHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“Specialists in the conservation and restoration of historic buildings and monuments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchParis, FranceHQ recorded Nov 6, 202611-5056 contacts →

Exact match

“Créée en 1958 par Anne de Amodio et reconnue d’utilité publique en 1963, les VMF se consacrent à la sauvegarde et à la mise en valeur du patrimoine bâti et paysager depuis près de…”

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

Showing 25 of 1,660 heritage conservation companies worldwide

See the full list, filter by size, metro and specialty, and access 3,985 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heritage conservation companies worldwide at a glance

As of Nov 6, 2026
28.5%Verified-email coverage
8.4Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
998
11-50
467
51-200
115
201-500
27
501-1,000
11
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 conservation companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “heritage 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 3,985 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 conservation companies by location

10 lists · largest first

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

How many heritage conservation companies are there worldwide?

RevenueBase identified 1,660 company matches for heritage 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 conservation companies?

The United Kingdom leads with 223 companies, followed by France (172) and the United States (162). Every heritage conservation companies list by country and city is linked on this page.

Which city has the most heritage conservation companies?

London leads with 34 company records, followed by Paris (23) and Sydney (16).

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 3,985 professional contacts with verified work emails tracked across these 1,660 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.