Company lists · Data refreshed November 2026

Top 25 Heritage conservation architects worldwide

Name: Heritage conservation architects worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 9,629 companies tracked

RevenueBase identified 9,629 company matches for heritage conservation architects worldwide as of November 2026 and tracks 58,461 professional contacts across them, including 19,702 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for heritage conservation architects 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 architects 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

9,629Companies

58,461Contacts tracked

19,702Verified emails

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The 25 largest heritage conservation architects worldwide

Ranked by team size

Top 25 of 9,629 company matches for heritage conservation architects 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	RJC Engineers	Exact match	Vancouver, ON, CanadaHQ recorded Nov 6, 2026	501-1,000	822 contacts →
	Exact match “We are on a mission to futureproof North America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Bulley & Andrews	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	338 contacts →
	Exact match “It’s not just what we build, but why.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Henry J Lyons Architects	Exact match	Dublin 2, IrelandHQ recorded Nov 6, 2026	201-500	265 contacts →
	Exact match “Henry J Lyons Architects is an Irish architectural practice based in Dublin City Centre.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Stuart Dean Company	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	201-500	243 contacts →
	Exact match “Stuart Dean is an international provider of renowned architectural restoration services, specializing in metal refinishing; stone polishing, cleaning and sealing; wood…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Quinn Evans	Exact match	Washington, MI, United StatesHQ recorded Nov 6, 2026	51-200	226 contacts →
	Exact match “Creators of vital places.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Beyer Blinder Belle	Exact match	New York, DC, United StatesHQ recorded Nov 6, 2026	51-200	219 contacts →
	Exact match “Founded in 1968, Beyer Blinder Belle Architects is an award-winning architecture, planning, and interiors with offices in New York City, Washington DC, Boston, and Miami.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Ennead Architects	Exact match	New York, United StatesHQ recorded Nov 6, 2026	51-200	206 contacts →
	Exact match “Ennead, a CannonDesign Company, is an internationally acclaimed 160+ person practice based in New York City with offices in Los Angeles and Shanghai.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Histoire & Patrimoine	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	203 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
9	CBT Architects	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	51-200	202 contacts →
	Exact match “CBT is working nationally and internationally on projects that range from urban district master planning to large-scale mixed-use developments, civic and cultural venues…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Lefèvre	Exact match	Gennevilliers, FranceHQ recorded Nov 6, 2026	201-500	194 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
11	Lord Aeck Sargent	Exact match	Atlanta, KY, United StatesHQ recorded Nov 6, 2026	51-200	175 contacts →
	Exact match “Lord Aeck Sargent (LAS) is a full-service, award-winning architectural and design firm with more than projects completed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Marmol Radziner	Exact match	Los Angeles, CA, United StatesHQ recorded Nov 6, 2026	51-200	166 contacts →
	Exact match “Established in 1989, Marmol Radziner is an award-winning Los Angeles-based design-build architecture and construction firm that integrates architectural design with a full range…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	H. Chevalier	Exact match	Suresnes, FranceHQ recorded Nov 6, 2026	201-500	152 contacts →
	Exact match “H.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	City & Country	Exact match	Stansted, United KingdomHQ recorded Nov 6, 2026	51-200	144 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
15	Rafael Viñoly Architects	Exact match	New York, CA, United StatesHQ recorded Nov 6, 2026	51-200	138 contacts →
	Exact match “Rafael Viñoly Architects was founded in New York in 1983, and has since become known internationally for its architectural and planning projects around the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	19six Architects	Exact match	CA, United StatesHQ recorded Nov 6, 2026	51-200	130 contacts →
	Exact match “Founded in 1906, ours is one of the oldest and most established architectural firms in California.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Sheehan Nagle Hartray Architects, A Woolpert Company	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	129 contacts →
	Exact match “Sheehan Nagle Hartray Architects is an award-winning firm with offices in Chicago and London offering architectural design, interior design, and pre-design services including site…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	KALAM	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	501-1,000	125 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
19	Kadawittfeldarchitektur	Exact match	Aachen, GermanyHQ recorded Nov 6, 2026	51-200	122 contacts →
	Exact match “kadawittfeldarchitektur is involved in architecture, interior design, town planning and urban projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Evergreene Architectural Arts, INC	Exact match	Brooklyn, NY, United StatesHQ recorded Nov 6, 2026	201-500	117 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
21	Kaas Wilson Architects	Exact match	Bloomington, MN, United StatesHQ recorded Nov 6, 2026	51-200	114 contacts →
	Exact match “Kaas Wilson Architects is a unique Architectural design firm that uses a team approach to better understand specialized environments for work, home, and health.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	The Architectural Team	Exact match	Chelsea, MA, United StatesHQ recorded Nov 6, 2026	51-200	112 contacts →
	Exact match “Founded in 1971, The Architectural Team is driven by a commitment to exceptional design and an unyielding focus on achieving client objectives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	ASI Providing Archaeological & Cultural Heritage Services	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	51-200	111 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
24	AH Asociados	Exact match	Pamplona, SpainHQ recorded Nov 6, 2026	51-200	109 contacts →
	Exact match “ah asociados is an architecture studio established in 1989 with branches in Pamplona, Bilbao, Madrid, Barcelona and Qatar.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	ERA Architects INC	Exact match	Toronto, QC, CanadaHQ recorded Nov 6, 2026	51-200	105 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

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “heritage conservation architects”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 9,629 heritage conservation architects worldwide

See the full list, filter by size, metro and specialty, and access 19,702 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heritage conservation architects worldwide at a glance

As of Nov 6, 2026

33.7%Verified-email coverage

6.1Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

6,635

11-50

2,286

51-200

357

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

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 architects are linked below.
What qualifies: Company records worldwide whose business descriptions match “heritage conservation architects” 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 19,702 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 architects by location

43 lists · largest first

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

How many heritage conservation architects are there worldwide?

RevenueBase identified 9,629 company matches for heritage conservation architects 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?

RJC Engineers tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most heritage conservation architects?

The United States leads with 2,121 companies, followed by the United Kingdom (1,087) and Germany (762). Every heritage conservation architects list by country and city is linked on this page.

Which city has the most heritage conservation architects?

London leads with 220 company records, followed by New York (167) and Paris (125).

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 19,702 professional contacts with verified work emails tracked across these 9,629 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.