Company lists · Data refreshed September 2026

Top 24 Heritage architecture firms based in Washington, United States

Name: Heritage architecture firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 41 companies tracked

RevenueBase identified 41 company matches for heritage architecture firms associated with Washington, United States as of September 2026 and tracks 692 professional contacts across them, including 389 with verified work emails. Across the United States, New York is the largest hub for this category (295 companies); Washington has 41.

This list covers company matches for heritage architecture firms associated with Washington, United States, 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 September 16, 2026.

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 Sep 16, 2026 How this list was built

41Companies

692Contacts tracked

389Verified emails

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The 24 largest heritage architecture firms based in Washington, United States

Ranked by team size

Top 24 of 41 company matches for heritage architecture firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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	Quinn Evans	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	225 contacts →
	Exact match “Creators of vital places.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2	KCCT	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	87 contacts →
	Exact match “For 40 years, KCCT has created innovative and monumental architecture and interior design projects in more than 140 countries.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3	Shalom Baranes Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	84 contacts →
	Exact match “Shalom Baranes Associates (SBA) is a Washington, DC architectural firm with an acclaimed reputation for its expertise in residential, commercial, institutional, and governmental…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4	KGD Architecture Kishimoto.Gordon.Dalaya INC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	69 contacts →
	Exact match “KGD Architecture is an award-winning full-service design firm headquartered in Washington, DC, with additional offices in Arlington, Virginia; Boston, Massachusetts; and Bangkok…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5	Hartman-Cox Architects	Exact match	Washington, United StatesHQ recorded Sep 16, 2026	11-50	25 contacts →
	Exact match “Established in 1965, Hartman-Cox is a Washington, DC based firm that has continuously produced award-winning, imaginative and responsible design for institutional, educational and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6	Barnesvanze Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	22 contacts →
	Exact match “Our co-founders, Anthony “Ankie” Barnes and Stephen Vanze, established Barnes Vanze Architects in 1989.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7	Cunningham Quill Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	18 contacts →
	Exact match “Established in 1996, Cunningham \| Quill Architects has generated a diverse portfolio of projects that celebrate context and reflect a fresh and insightful approach to design.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8	Bell Architects, PC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	16 contacts →
	Exact match “BELL Architects' works closely with communities to create places where people want to be.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9	Blackburn Architects, P.C	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	15 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10	Sroka Design Incorporated	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	13 contacts →
	Exact match “Skip Sroka, ASID, CID, and his design team at Sroka Design have been designing the homes of Washington D.C.'s power players for 30 years.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11	Keil Construction INC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	12 contacts →
	Exact match “Keil Construction specializes in renovating and preserving historic homes, solving problems with creative design solutions in the Capitol Hill area of Washington, DC.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12	Thomson & Cooke Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	9 contacts →
	Exact match “Thomson & Cooke Architects is a custom residential architecture firm based in Washington, DC.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13	Shinberg Levinas Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	8 contacts →
	Exact match “A growing firm practicing Architecture & Interiors & Urban Design for the public and private realms, done responsibly.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14	Bbgm A I	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	8 contacts →
	Exact match “Your Vision.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15	DP Partners, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16	MV Architects, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	6 contacts →
	Exact match “MV Architects creates homes that will provide years of memories for our clients through thoughtful design that will enhance their space.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17	Saint Studio For Architecture And Interiors	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	5 contacts →
	Exact match “SAINT Studio for Architecture and Interiors is a multi-disciplinary architecture and design firm based in Washington, D.C, and Los Angeles, CA.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18	R2l Architects, Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	5 contacts →
	Exact match “R2L:Architects, PLLC was founded in 2010 to create elegant solutions to the architectural challenges faced by our clients, including communities, corporations, institutions, and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19	Wouter Boer Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	4 contacts →
	Exact match “Wouter Boer Architects is passionate about residential design.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20	Christian DAW Design	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	3 contacts →
	Exact match “With a passion for beautiful homes and an appreciation for practicality and comfort, Christian Daw Design is a successful boutique interior and architectural design firm.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21	K P Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	3 contacts →
	Exact match “K+P Architects is a full-service architectural firm located at 1250 Connecticut Avenue in Washington, DC.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22	District Design	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	2 contacts →
	Exact match “DISTRICT DESIGN is a dynamic young architecture and interiors firm located in a former grocery store off of DC's thriving U Street corridor.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23	Neumann Lewis Buchanan Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	2 contacts →
	Exact match “From elegant estates and country houses to farmhouses and summer cottages, Neumann Lewis Buchanan Architects is known for creating houses of timeless character.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24	Demian Wilbur Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	1 contacts →
	Exact match “Formed in 2005 by Eric Wilbur and Ziad Demian, demian\wilbur\architects studio is a certified small business entity located in Capital Hill serving the greater Washington DC…” Recorded in the RevenueBase company graph · Sep 16, 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 architecture firms”. 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 24 of 41 heritage architecture firms based in Washington, United States

See the full list, filter by size, metro and specialty, and access 389 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heritage architecture firms based in Washington, United States at a glance

As of Sep 16, 2026

56.2%Verified-email coverage

16.9Average contacts per company

1-10Median size (employees)

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 41 companies.

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.
What qualifies: Company records associated with Washington, United States whose business descriptions match “heritage architecture firms” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 389 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 September 16, 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 architecture firms by metro in the United States

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 architecture firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heritage architecture firms are there based in Washington, United States?

RevenueBase identified 41 company matches for heritage architecture firms associated with Washington, United States as of September 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?

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

Which city in the United States has the most heritage architecture firms?

New York leads the United States with 295 company records, followed by Los Angeles (85) and Chicago (63). Washington has 41.

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 389 professional contacts with verified work emails tracked across these 41 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 September 16, 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.