Company lists · Data refreshed September 2026

Top 25 Heritage preservation organizations worldwide

Name: Heritage preservation organizations worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,075 companies tracked

RevenueBase identified 1,075 heritage preservation organizations worldwide as of September 2026 and tracks 12,144 professional contacts across them, including 3,424 with verified work emails. The United States is the largest market and London the largest hub.

This list covers heritage preservation organizations 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 heritage preservation organizations 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

1,075Companies

12,144Contacts tracked

3,424Verified emails

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The 25 largest heritage preservation organizations worldwide

Ranked by team size

Top 25 of 1,075 heritage preservation organizations worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to heritage preservation organizations: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Historic England	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	1,225 contacts →
	Indirect evidence “From the extraordinary, to the everyday, our historic places and spaces matter – to you, to us, to the nation.” Source: RevenueBase Database · checked Sep 20, 2026
2	The Trustees Of Reservations	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	201-500	463 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
3	Cultural Heritage Agency Of The Netherlands	Partial evidence	Amersfoort, NetherlandsHQ checked Sep 20, 2026	201-500	459 contacts →
	Partial evidence “The Cultural Heritage Agency of the Netherlands helps other parties to get the best out of our heritage.” Source: RevenueBase Database · checked Sep 20, 2026
4	Fondation DU Patrimoine	Partial evidence	Neuilly-sur-seine, FranceHQ checked Sep 20, 2026	51-200	396 contacts →
	Partial 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
5	National Trust For Historic Preservation	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	338 contacts →
	Partial evidence “For more than 75 years, the National Trust for Historic Preservation has led the movement to safeguard America’s historic places.” Source: RevenueBase Database · checked Sep 20, 2026
6	Riksantikvarieämbetet	Partial evidence	Stockholm, SwedenHQ checked Sep 20, 2026	201-500	261 contacts →
	Partial evidence “The Swedish National Heritage Board is the agency of the Swedish government that is responsible for heritage and historic environment issues.” Source: RevenueBase Database · checked Sep 20, 2026
7	Historic NEW England	Partial evidence	Haverhill, MA, United StatesHQ checked Sep 20, 2026	51-200	221 contacts →
	Partial evidence “Historic New England is the oldest and largest regional heritage organization in the nation.” Source: RevenueBase Database · checked Sep 20, 2026
8	Paleis HET LOO	Indirect evidence	Apeldoorn, NetherlandsHQ checked Sep 20, 2026	201-500	189 contacts →
	Indirect evidence “History has been made at Paleis Het Loo and we are working hard to preserve it.” Source: RevenueBase Database · checked Sep 20, 2026
9	Heritage NEW Zealand Pouhere Taonga	Partial evidence	New ZealandHQ checked Sep 20, 2026	51-200	112 contacts →
	Partial evidence “Heritage New Zealand Pouhere Taonga is the leading national historic heritage agency.” Source: RevenueBase Database · checked Sep 20, 2026
10	KALAM	Partial evidence	Madrid, SpainHQ checked Sep 20, 2026	501-1,000	109 contacts →
	Partial 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
11	Italia Nostra	Partial evidence	Rome, ItalyHQ checked Sep 20, 2026	11-50	102 contacts →
	Partial evidence “Italia Nostra is the oldest national association for the defence of the historical, cultural and environmental heritage of Italy.” Source: RevenueBase Database · checked Sep 20, 2026
12	The Citizens Archive Of Pakistan	Partial evidence	Karachi, PakistanHQ checked Sep 20, 2026	11-50	85 contacts →
	Partial evidence “The Citizens Archive of Pakistan (CAP) is a non-profit organization dedicated to cultural and historic preservation, operating in Karachi, Lahore and Islamabad.” Source: RevenueBase Database · checked Sep 20, 2026
13	Hendrick DE Keyser Monumenten	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	51-200	84 contacts →
	Indirect evidence “Hendrick de Keyser’ behoudt al sinds 1918 architectonisch of historisch waardevolle huizen en hun interieur in Nederland.” Source: RevenueBase Database · checked Sep 20, 2026
14	Heritage Lottery Fund	Partial evidence	United KingdomHQ checked Sep 20, 2026	201-500	74 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
15	Historic Charleston Foundation	Indirect evidence	Charleston, SC, United StatesHQ checked Sep 20, 2026	51-200	68 contacts →
	Indirect evidence “Established in 1947, Historic Charleston Foundation is dedicated to preserving and protecting the architectural, historical and cultural character of Charleston and its Lowcountry…” Source: RevenueBase Database · checked Sep 20, 2026
16	Historic Hudson Valley	Indirect evidence	Tarrytown, NY, United StatesHQ checked Sep 20, 2026	51-200	61 contacts →
	Indirect evidence “Historic Hudson Valley, Westchester County’s largest cultural organization, educates and entertains more than visitors a year through school programs, tours of five National…” Source: RevenueBase Database · checked Sep 20, 2026
17	Preservation Virginia	Partial evidence	Richmond, VA, United StatesHQ checked Sep 20, 2026	51-200	57 contacts →
	Partial evidence “Since 1889, Preservation Virginia has preserved historic places and raised awareness of the importance of perpetuating and revitalizing Virginia's cultural, architectural and…” Source: RevenueBase Database · checked Sep 20, 2026
18	Messenger BCR Group	Indirect evidence	Stamford, United KingdomHQ checked Sep 20, 2026	51-200	56 contacts →
	Indirect evidence “Specialists in the conservation and restoration of historic buildings and monuments.” Source: RevenueBase Database · checked Sep 20, 2026
19	Narodowy Instytut Dziedzictwa	Indirect evidence	Warszawa, PolandHQ checked Sep 20, 2026	201-500	54 contacts →
	Indirect evidence “Naszą misją jest tworzenie podstaw dla zrównoważonej ochrony dziedzictwa kulturowego, by zachować jak najwięcej dla przyszłych pokoleń.” Source: RevenueBase Database · checked Sep 20, 2026
20	SPAB	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	54 contacts →
	Indirect evidence “The Society for the Protection of Ancient Buildings.” Source: RevenueBase Database · checked Sep 20, 2026
21	VMF	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	11-50	54 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
22	Tmhc INC	Partial evidence	London, ON, CanadaHQ checked Sep 20, 2026	11-50	53 contacts →
	Partial evidence “TMHC embraces the respectful conservation of Ontario's cultural heritage, working in partnership with municipalities, public and private organizations, Indigenous and descendent…” Source: RevenueBase Database · checked Sep 20, 2026
23	Stadsherstel Amsterdam	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	11-50	50 contacts →
	Indirect evidence “Stadsherstel Amsterdam redt monumenten en beeldbepalende panden door ze zorgvuldig te restaureren, een passende bestemming te geven en te verhuren.” Source: RevenueBase Database · checked Sep 20, 2026
24	Historic Annapolis, INC	Partial evidence	Annapolis, MD, United StatesHQ checked Sep 20, 2026	11-50	47 contacts →
	Partial evidence “Established in 1952, Historic Annapolis is the leading nonprofit preservation and history organization in Annapolis, MD.” Source: RevenueBase Database · checked Sep 20, 2026
25	ICON	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	n/a	47 contacts →
	Partial evidence “Icon’s vision is for cultural heritage to be valued and accessible and for its future to be enhanced and safeguarded by excellence in conservation.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: heritage preservation organizations. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names heritage preservation organizations.
Partial evidence: Its own public description names part of heritage preservation organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name heritage preservation organizations. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,075 heritage preservation organizations worldwide

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Heritage preservation organizations worldwide at a glance

As of Sep 20, 2026

28.2%Verified-email coverage

11.3Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

710

11-50

252

51-200

201-500

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among heritage preservation organizations, 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 heritage preservation organizations are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “heritage preservation organizations”. 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 heritage preservation organizations), 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 heritage preservation organizations, 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, 3,424 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.

Heritage preservation organizations by location

7 lists · largest first

Every Heritage preservation organizations 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 heritage preservation organizations, 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 heritage preservation organizations are there worldwide?

RevenueBase identified 1,075 heritage preservation organizations 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?

Historic England, headquartered in London, tops this list with the largest team on record.

Which country has the most heritage preservation organizations?

The United States leads with 321 companies, followed by the United Kingdom (85) and France (66). Every heritage preservation organizations list by country and city is linked on this page.

Which city has the most heritage preservation organizations?

London leads with 24 headquartered companies, followed by Washington (17) and Paris (16).

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 3,424 verified decision-maker contacts tracked across these 1,075 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.