Company lists · Data refreshed November 2026

Top 25 Interface design firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 27,660 companies tracked

RevenueBase identified 27,660 company matches for interface design firms worldwide as of November 2026 and tracks 180,116 professional contacts across them, including 44,215 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for interface 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 interface 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

27,660Companies

180,116Contacts tracked

44,215Verified emails

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The 25 largest interface design firms worldwide

Ranked by team size

Top 25 of 27,660 company matches for interface 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	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
2	Cannondesign	Exact match	New York, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,818 contacts →
	Exact match “CannonDesign is a different kind of design firm, where architecture, strategy, experience, innovation and social good converge to create meaningful impact.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	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
4	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
5	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
6	IDEO	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	201-500	1,303 contacts →
	Exact match “IDEO (pronounced “EYE-dee-oh”) is a global design consultancy helping the world’s most audacious dreamers create braver tomorrows.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Ware Malcomb	Exact match	International Design Firm, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,057 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 · Nov 6, 2026 · View company records in RevenueBase
8	NORR	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	501-1,000	994 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 · Nov 6, 2026 · View company records in RevenueBase
9	Smart Design	Exact match	Brooklyn, United StatesHQ recorded Nov 6, 2026	n/a	896 contacts →
	Exact match “Smart Design is a strategic design company that helps people live better and work smarter.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	B H Architects	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	201-500	850 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 · Nov 6, 2026 · View company records in RevenueBase
11	Parkhill	Exact match	Lubbock, OK, United StatesHQ recorded Nov 6, 2026	501-1,000	665 contacts →
	Exact match “We are a full-service design firm of extraordinary planners, designers, architects, and engineers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Pininfarina	Exact match	Cambiano, ItalyHQ recorded Nov 6, 2026	501-1,000	599 contacts →
	Exact match “Global icon of Italian style, Pininfarina is recognized for its unparalleled ability to create timeless beauty through its values of elegance, purity, and innovation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Sasaki	Exact match	Boston, CO, United StatesHQ recorded Nov 6, 2026	201-500	554 contacts →
	Exact match “For over seventy years, Sasaki has brought together the best of architecture, interior design, landscape architecture, planning, urban design, civil engineering, graphic design…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	TVS	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	51-200	508 contacts →
	Exact match “TVS is an award-winning architecture and interior design firm headquartered in Atlanta, GA with global project expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	KTGY	Exact match	Irvine, CA, United StatesHQ recorded Nov 6, 2026	201-500	494 contacts →
	Exact match “Design Lives at KTGY.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Estudio Architecture	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	n/a	397 contacts →
	Exact match “eStudio is a specialized full service architectural and boutique design firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Fjord, Part Of Accenture Song	Exact match	London, TX, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	380 contacts →
	Exact match “Fjord, part of Accenture Song, is a design and innovation consultancy that reimagines people’s relationships with the digital and physical world around them.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Padams Group	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	5,001-10,000	379 contacts →
	Exact match “We at Padam interiors believe that each project is as unique as each client.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	ASD SKY	Exact match	Atlanta, VA, United StatesHQ recorded Nov 6, 2026	201-500	379 contacts →
	Exact match “Established in 1963, ASD \| SKY has evolved into a multi-disciplinary design firm offering interiors, architectural, landscape, and graphic design services to a variety of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Kasian Architecture Interior Design And Planning	Exact match	Vancouver, BC, CanadaHQ recorded Nov 6, 2026	201-500	373 contacts →
	Exact match “We use the power of design to create a better world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Cooper Carry	Exact match	Atlanta, CO, United StatesHQ recorded Nov 6, 2026	201-500	355 contacts →
	Exact match “Connection by Design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Walterfedy	Exact match	Kitchener, AB, CanadaHQ recorded Nov 6, 2026	201-500	340 contacts →
	Exact match “WalterFedy is a proudly Canadian design firm that has been bringing architecture, interior design, and engineering together since 1951.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	DES	Exact match	Redwood City, CA, United StatesHQ recorded Nov 6, 2026	51-200	331 contacts →
	Exact match “Born and bred in the Bay Area, DES shares the trailblazing spirit of Silicon Valley.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Mithun	Exact match	Seattle, CA, United StatesHQ recorded Nov 6, 2026	51-200	304 contacts →
	Exact match “Mithun is an integrated design firm dedicated to creating positive change in people’s lives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	XYZ Design	Exact match	Cape Town, South AfricaHQ recorded Nov 6, 2026	n/a	298 contacts →
	Exact match “XYZ in 60 seconds.” 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 “interface 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 27,660 interface design firms worldwide

See the full list, filter by size, metro and specialty, and access 44,215 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Interface design firms worldwide at a glance

As of Nov 6, 2026

24.5%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

21,531

11-50

4,950

51-200

840

201-500

151

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 interface design firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “interface 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 44,215 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.

Interface design firms by location

149 lists · largest first

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

How many interface design firms are there worldwide?

RevenueBase identified 27,660 company matches for interface 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?

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

Which country has the most interface design firms?

The United States leads with 5,702 companies, followed by India (3,007) and the United Kingdom (1,232). Every interface design firms list by country and city is linked on this page.

Which city has the most interface design firms?

London leads with 530 company records, followed by New York (410) and Bangalore (334).

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 44,215 professional contacts with verified work emails tracked across these 27,660 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.