Company lists · Data refreshed November 2026

Top 25 Architectural and design firms worldwide

Name: Architectural and design firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 122,250 companies tracked

RevenueBase identified 122,250 company matches for architectural and design firms worldwide as of November 2026 and tracks 966,533 professional contacts across them, including 285,400 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for architectural and design firms 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 architectural and design firms 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

122,250Companies

966,533Contacts tracked

285,400Verified emails

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The 25 largest architectural and design firms worldwide

Ranked by team size

Top 25 of 122,250 company matches for architectural and design firms 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	Kimley-Horn	Exact match	Raleigh, NC, United StatesHQ recorded Nov 6, 2026	5,001-10,000	11,227 contacts →
	Exact match “Kimley-Horn is one of the nation’s premier planning and design consulting firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Khatib & Alami	Exact match	Downtown, PolandHQ recorded Nov 6, 2026	5,001-10,000	6,495 contacts →
	Exact match “Khatib & Alami (K&A) is a multidisciplinary design consultancy which operates primarily across the Middle East & Africa, Levant, Central and South-East Asia, and Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Perkins&will	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,204 contacts →
	Exact match “Since 1935, we’ve believed that design has the power to make the world a better, more beautiful place.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Dewberry	Exact match	Fairfax, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,009 contacts →
	Exact match “Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	HOK	Exact match	New York, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,828 contacts →
	Exact match “HOK is a global interdisciplinary design firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	KEO International Consultants	Exact match	Safat, KuwaitHQ recorded Nov 6, 2026	1,001-5,000	2,198 contacts →
	Exact match “From shaping iconic skylines to crafting sustainable communities, KEO builds legacies for a better tomorrow.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Colliers Engineering & Design	Exact match	Holmdel, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,172 contacts →
	Exact match “Colliers Engineering & Design, an affiliate of Colliers, is a trusted provider of multi-discipline engineering and architecture, design and consulting services to public and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Skidmore, Owings & Merrill SOM	Exact match	New York, DC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,130 contacts →
	Exact match “Skidmore, Owings & Merrill (SOM) is a global practice of architects, designers, engineers, and planners, responsible for some of the world’s most technically and environmentally…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	DLR Group	Exact match	30 Offices, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,118 contacts →
	Exact match “DLR Group is an integrated design firm delivering architecture, engineering, interiors, planning, and building optimization for new construction, renovation, and adaptive reuse.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Smithgroup	Exact match	Detroit, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,938 contacts →
	Exact match “SmithGroup is an award-winning, multi-national integrated design firm that employs research, data, advanced technologies and design thinking to help clients solve their greatest…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Clayco	Exact match	Chicago, MO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,903 contacts →
	Exact match “Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	IA Interior Architects	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,722 contacts →
	Exact match “Celebrating 40 years of visionary design and innovation, IA Interior Architects is the first global architecture firm focused exclusively on interiors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	BW Design Group	Exact match	St. Louis, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,703 contacts →
	Exact match “BW Design Group is the only independent, fully integrated AEC firm powered by a Manufacturer's Mindset™.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	BIG	Exact match	Brooklyn, United StatesHQ recorded Nov 6, 2026	501-1,000	1,680 contacts →
	Exact match “BIG is a Copenhagen, New York, London, Barcelona, Shanghai, Los Angeles, Zurich, and Bhutan-based global architecture firm operating within the fields of architecture, urbanism…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	IDEA	Exact match	Sofia, BulgariaHQ recorded Nov 6, 2026	n/a	1,658 contacts →
	Exact match “At IDEA International, we design spaces for people to work well, live happily, and rest with style.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Ssoe Group	Exact match	Toledo, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,653 contacts →
	Exact match “As an internationally ranked architecture and engineering firm, SSOE is known for delivering unparalleled client value that advances the AEC industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	HGA	Exact match	Minneapolis, DC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,613 contacts →
	Exact match “HGA is a national interdisciplinary design firm committed to making a positive, lasting impact for our clients and communities through research-based, holistic solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	IBI Group	Exact match	Amsterdam, FL, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	1,582 contacts →
	Exact match “IBI Group is a technology-driven design firm with global architecture, engineering, planning and technology expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	DAR Engineering	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	1,564 contacts →
	Exact match “DAR Engineering is a leading multidisciplinary consultancy firm providing design, architecture, engineering, project management, construction management and planning services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	HBA Hirsch Bedner Associates	Exact match	SingaporeHQ recorded Nov 6, 2026	1,001-5,000	1,521 contacts →
	Exact match “Founded in 1965 by Howard Hirsch and Michael Bedner, HBA (Hirsch Bedner Associates) believes in the power of great design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Arquitectura	Exact match	Pontevedra, SpainHQ recorded Nov 6, 2026	n/a	1,503 contacts →
	Exact match “Estudio de arquitectura” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Corgan	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,490 contacts →
	Exact match “Corgan is an employee-owned architecture and design firm with 22 locations and more than 1,300 team members globally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	PAGE	Exact match	Washington, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,456 contacts →
	Exact match “Performance by Design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	SSH Design	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	1,001-5,000	1,414 contacts →
	Exact match “As a design-led consulting firm offering world-class, multi-disciplinary consultancy services, SSH has been a trusted partner of choice across the Middle East and Africa for over…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Structure Tone	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,400 contacts →
	Exact match “Structure Tone was founded in 1971 in NYC, as an interior construction focused builder.” 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 “architectural and design 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 25 of 122,250 architectural and design firms worldwide

See the full list, filter by size, metro and specialty, and access 285,400 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Architectural and design firms worldwide at a glance

As of Nov 6, 2026

29.5%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

84,286

11-50

29,354

51-200

5,519

201-500

1,080

501-1,000

224

1,001-5,000

130

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 architectural and design firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “architectural and design 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. 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 285,400 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.

Architectural and design firms by location

455 lists · largest first

Every Architectural and design firms 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 “architectural and design firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many architectural and design firms are there worldwide?

RevenueBase identified 122,250 company matches for architectural and design firms 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?

Kimley-Horn tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most architectural and design firms?

The United States leads with 22,080 companies, followed by India (10,290) and the United Kingdom (6,337). Every architectural and design firms list by country and city is linked on this page.

Which city has the most architectural and design firms?

London leads with 2059 company records, followed by Sao Paulo (1546) and New York (1433).

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 285,400 professional contacts with verified work emails tracked across these 122,250 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.