Company lists · Data refreshed October 2026

Top 25 Office building architects worldwide

Name: Office building architects worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 19, 2026 49,227 companies tracked

RevenueBase identified 49,227 company matches for office building architects worldwide as of October 2026 and tracks 350,180 professional contacts across them, including 96,934 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for office building 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 October 19, 2026. Country and city lists for office building 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 Oct 19, 2026 How this list was built

49,227Companies

350,180Contacts tracked

96,934Verified emails

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The 25 largest office building architects worldwide

Ranked by team size

Top 25 of 49,227 company matches for office building architects worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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	KEO International Consultants	Exact match	Safat, KuwaitHQ recorded Oct 19, 2026	1,001-5,000	2,111 contacts →
	Exact match “From shaping iconic skylines to crafting sustainable communities, KEO builds legacies for a better tomorrow.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
2	Clayco	Exact match	Chicago, IL, United StatesHQ recorded Oct 19, 2026	1,001-5,000	1,848 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 · Oct 19, 2026 · View company records in RevenueBase
3	IA Interior Architects	Exact match	San Francisco, CA, United StatesHQ recorded Oct 19, 2026	501-1,000	1,653 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 · Oct 19, 2026 · View company records in RevenueBase
4	Athié Wohnrath	Exact match	São Paulo, BrazilHQ recorded Oct 19, 2026	501-1,000	1,172 contacts →
	Exact match “Para nós do Grupo a\|w, projetos impactantes são aqueles que traduzem o jeito de ser das pessoas e os valores das empresas.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5	GSE	Exact match	Avignon Cedex 1, FranceHQ recorded Oct 19, 2026	501-1,000	1,136 contacts →
	Exact match “A global player in Corporate real-estate, GSE ensures design, construction and / or renovation with a commitment of price, delay and quality of its achievements.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6	KPF	Exact match	New York, NY, United StatesHQ recorded Oct 19, 2026	501-1,000	1,058 contacts →
	Exact match “KPF is dedicated to transforming cities through impactful design, collaborating closely with the world’s most forward-thinking clients to create high performing, carefully crafted…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7	Ware Malcomb	Exact match	International Design Firm, United StatesHQ recorded Oct 19, 2026	501-1,000	1,025 contacts →
	Exact match “Established in 1972, Ware Malcomb is a dynamic, forward-thinking design firm offering streamlined architecture, interior design, branding, and engineering services across the…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8	NORR	Exact match	Toronto, ON, CanadaHQ recorded Oct 19, 2026	501-1,000	970 contacts →
	Exact match “NORR is a global team of 800 architects, engineers, planners, and interior designers creating design strategies and solutions that express the unique vision of every project.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
9	Arco Murray	Exact match	Nashville, TN, United StatesHQ recorded Oct 19, 2026	501-1,000	877 contacts →
	Exact match “ARCO/Murray is a single source national design and construction firm that specializes in commercial construction and real estate needs for Fortune 500 companies and individual…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
10	B H Architects	Exact match	Toronto, ON, CanadaHQ recorded Oct 19, 2026	201-500	838 contacts →
	Exact match “B+H Architects is a global, award-winning firm with a 70+ year legacy of building creative solutions for clients through the delivery of architecture, interior design, landscape…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11	Saudi Diyar Consultants	Exact match	Jeddah, Saudi ArabiaHQ recorded Oct 19, 2026	501-1,000	786 contacts →
	Exact match “Architects and Engineers Saudi Diyar Consultants is one of the leading multidiscipline design firms in the Middle East with a diverse portfolio of commercial, institutional…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12	M3 Engineering & Technology Corp	Exact match	Tucson, AZ, United StatesHQ recorded Oct 19, 2026	501-1,000	756 contacts →
	Exact match “M3 is a privately held full service design firm.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13	P&t Architects And Engineers LTD	Exact match	Kong, Hong KongHQ recorded Oct 19, 2026	1,001-5,000	701 contacts →
	Exact match “Headquartered in Hong Kong, P&T Group is one of the world's longest-established architecture and engineering practices.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14	Unispace	Exact match	Unispace Global, WA, AustraliaHQ recorded Oct 19, 2026	501-1,000	686 contacts →
	Exact match “Unispace is a global leader in integrated workplace strategy, design, and construction, with more than 600 employees across 27 studios in 13 countries throughout North America…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15	HFA	Exact match	Bentonville, AR, United StatesHQ recorded Oct 19, 2026	501-1,000	677 contacts →
	Exact match “Founded in 1990, HFA is a multi-disciplinary architecture and engineering firm specializing in delivering tailored design solutions for businesses of all sizes.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16	LEO A Daly	Exact match	Omaha, NE, United StatesHQ recorded Oct 19, 2026	501-1,000	666 contacts →
	Exact match “Industry-Leading.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17	Arif & Bintoak	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 19, 2026	501-1,000	644 contacts →
	Exact match “Arif & Bintoak Consulting Architects and Engineers was established in 1975 by civil engineers Mr.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18	RSP Architects	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 19, 2026	201-500	633 contacts →
	Exact match “We are makers.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19	Architecture	Exact match	Troy, NY, United StatesHQ recorded Oct 19, 2026	n/a	606 contacts →
	Exact match “architecture+ is a design and service-oriented architectural and planning firm located in Troy in New York's Capital Region.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20	ONE Workplace	Exact match	Santa Clara, CA, United StatesHQ recorded Oct 19, 2026	501-1,000	604 contacts →
	Exact match “We create spaces that inspire and transform.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
21	Gulf Consult	Exact match	Shuwaikh, KuwaitHQ recorded Oct 19, 2026	501-1,000	581 contacts →
	Exact match “Gulf Consult was founded by Hamad Abdullateef Thunyan Alghanim in 1967, making it one of the oldest established design consultancies in Kuwait.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
22	Ls3p Associates LTD	Exact match	Charleston, SC, United StatesHQ recorded Oct 19, 2026	201-500	578 contacts →
	Exact match “LS3P is an architecture, interiors, and planning firm celebrating more than 60 years of design excellence.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
23	Exotic Innovations Private Limited	Exact match	Bangalore, IndiaHQ recorded Oct 19, 2026	201-500	543 contacts →
	Exact match “Exotic Innovations is a leading Design & Build and General Contracting firm delivering large-scale corporate interiors across India.” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
24	Herzog & DE Meuron	Exact match	Basel, SwitzerlandHQ recorded Oct 19, 2026	201-500	527 contacts →
	Exact match “Established in Basel in 1978, Herzog & de Meuron is a partnership led by Jacques Herzog and Pierre de Meuron together with Senior Partners Christine Binswanger, Ascan…” Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
25	Little Diversified Architectural Consulting	Exact match	Little Global, VA, United StatesHQ recorded Oct 19, 2026	201-500	524 contacts →
	Exact match “At Little, we deliver results far beyond architecture-results you wouldn’t expect from an architectural firm.” Recorded in the RevenueBase company graph · Oct 19, 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 “office building 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 49,227 office building architects worldwide

See the full list, filter by size, metro and specialty, and access 96,934 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Office building architects worldwide at a glance

As of Oct 19, 2026

27.7%Verified-email coverage

7.1Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Oct 19, 2026Page data refreshed

Companies by employee count

1-10

32,990

11-50

12,874

51-200

2,413

201-500

476

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 office building architects are linked below.
What qualifies: Company records worldwide whose business descriptions match “office building 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 96,934 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 October 19, 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.

Office building architects by location

207 lists · largest first

Every Office building 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 “office building architects”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many office building architects are there worldwide?

RevenueBase identified 49,227 company matches for office building architects worldwide as of October 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?

KEO International Consultants tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most office building architects?

The United States leads with 8,443 companies, followed by India (4,547) and Brazil (2,552). Every office building architects list by country and city is linked on this page.

Which city has the most office building architects?

Sao Paulo leads with 662 company records, followed by London (598) and New York (538).

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 96,934 professional contacts with verified work emails tracked across these 49,227 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 October 19, 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.