Company lists · Data refreshed September 2026
Top 25 Heritage conservation consultants worldwide
RevenueBase identified 1,173 heritage conservation consultants worldwide as of September 2026 and tracks 9,094 professional contacts across them, including 3,207 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers heritage conservation consultants 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 conservation consultants 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.
The 25 largest heritage conservation consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 423 contacts → | ||||
Partial evidence “We are a cultural resource management firm operating across the United States and internationally, dedicated to stewarding our shared heritage.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 264 contacts → | ||||
Partial evidence “We are an innovative archaeology and built heritage practice with 50 years of experience in the sector.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 238 contacts → | ||||
Indirect evidence “ICOMOS is an international NGO founded in 1965.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 209 contacts → | ||||
Indirect evidence “La société Éveha, bureau d'études et de valorisations archéologiques, est le principal opérateur privé en archéologie préventive.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 167 contacts → | ||||
Strong evidence “Headland Archaeology is a leading independent company providing heritage consultancy and archaeological contracting services to a wide spectrum of clients within the development…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 160 contacts → | ||||
Strong evidence “Barker Langham is a leading cultural consultancy, specialising in the visioning, strategic planning and development of cultural heritage projects in Europe, the Middle East…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 136 contacts → | ||||
Strong evidence “Biosis is a team of qualified and professional consultants, experienced in and passionate about ecology and cultural heritage.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 110 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 109 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 103 contacts → | ||||
Partial evidence “ERA Architects Inc.(ERA) is an award-winning architecture and planning firm focused on conservation through reactivation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 97 contacts → | ||||
Indirect evidence “For four decades, CRA has been recognized as one of the most respected, full-service cultural resource consulting firms in the United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 94 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 86 contacts → | ||||
Strong evidence “Everick Heritage is one of Australia’s leading heritage consultancies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 76 contacts → | ||||
Indirect evidence “BAAC werd in de jaren negentig opgericht als een samenwerkingsverband van bouwhistorici.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 74 contacts → | ||||
Indirect evidence “Nationaal Restauratiefonds biedt eigenaren en beheerders van monumenten financiële ondersteuning bij het restaureren en onderhouden van hun pand.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 72 contacts → | ||||
Indirect evidence “Koninklijke Woudenberg | a JAJO company is een Erkend Restauratiebouwbedrijf (ERB) en aangesloten bij de Vakgroep Restauratie.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 70 contacts → | ||||
Indirect evidence “Established since 1998, IAC Archaeology is a multidisciplinary archaeological practice.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 67 contacts → | ||||
Partial evidence “Archaeological Research Associates Ltd.(ARA) is Ontario’s oldest archaeological and heritage consulting firm, uncovering Ontario's history since 1972.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 66 contacts → | ||||
Strong evidence “GML Heritage is a leading Australian heritage consultancy with offices in Sydney, Melbourne and Canberra.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 62 contacts → | ||||
Indirect evidence “A ERA é uma empresa de referência portuguesa.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 61 contacts → | ||||
Strong evidence “AMS is an archaeological and heritage consultancy specialising in early heritage assessment works and archaeological project management.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 57 contacts → | ||||
Partial evidence “CFA Archaeology Ltd (CFA) is a professional cultural heritage consulting and archaeological contracting organisation providing services across the UK on a range of projects…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 56 contacts → | ||||
Partial evidence “Specialists in the conservation and restoration of historic buildings and monuments.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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, 2026Thanks. The Data Team will review it. | |||||
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 conservation consultants. 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 conservation consultants.
- Partial evidence
- Its own public description names part of heritage conservation consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name heritage conservation consultants. 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 1,173 heritage conservation consultants worldwide
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Heritage conservation consultants worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 conservation consultants, 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 conservation consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “heritage conservation consultants”. 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 conservation consultants), 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 conservation consultants, 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, 3,207 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 conservation consultants by location
6 lists · largest firstEvery Heritage conservation consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Heritage conservation consultants based in the United Kingdom208
- Heritage conservation consultants based in the United States115
- Heritage conservation consultants based in Australia111
- Heritage conservation consultants based in France95
- Heritage conservation consultants based in the Netherlands54
- Heritage conservation consultants based in Canada40
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 conservation consultants, 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 conservation consultants are there worldwide?
RevenueBase identified 1,173 heritage conservation consultants 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?
Chronicle Heritage, headquartered in Phoenix, tops this list with the largest team on record.
Which country has the most heritage conservation consultants?
The United Kingdom leads with 208 companies, followed by the United States (115) and Australia (111). Every heritage conservation consultants list by country and city is linked on this page.
Which city has the most heritage conservation consultants?
London leads with 37 headquartered companies, followed by Paris (17) and Sydney (12).
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 3,207 verified decision-maker contacts tracked across these 1,173 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.