Company lists · Data refreshed September 2026

Top 25 Interaction design firms worldwide

RevenueBase identified 27,522 interaction design firms worldwide as of September 2026 and tracks 180,073 professional contacts across them, including 42,801 with verified work emails. The United States is the largest market and London the largest hub.

This list covers interaction design firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for interaction design firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
27,522Companies
180,073Contacts tracked
42,801Verified emails
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The 25 largest interaction design firms worldwide

Ranked by team size
Top 25 of 27,522 interaction design firms worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to interaction design firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 20, 20261,001-5,0002,965 contacts →

Indirect evidence

“Ciklum is a global Experience Engineering firm that stands at the forefront of innovation, blending next-generation product engineering, exceptional customer experiences, and…”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceSan Jose, CA, United StatesHQ checked Sep 20, 20261,001-5,0002,640 contacts →

Partial evidence

“ACL Digital is a design-led Digital Experience, Product Innovation, Solutions, and Consulting offerings leader.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceCuritiba - Matriz / São Paulo - Filial / Ponta Grossa - Filial, BrazilHQ checked Sep 20, 202610001+2,065 contacts →

Indirect evidence

“Projetamos, entregamos e otimizamos experiências humanas inesquecíveis para o mundo digital atual.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceDetroit, MI, United StatesHQ checked Sep 20, 20261,001-5,0001,849 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,0001,660 contacts →

Partial evidence

“CannonDesign is a different kind of design firm, where architecture, strategy, experience, innovation and social good converge to create meaningful impact.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceArmonk, NY, United StatesHQ checked Sep 20, 202610001+1,625 contacts →

Partial evidence

“IBM iX is your global experience design partner within IBM Consulting.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 20, 20261,001-5,0001,543 contacts →

Partial evidence

“HGA is a national interdisciplinary design firm committed to making a positive, lasting impact for our clients and communities through research-based, holistic solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 2026201-5001,208 contacts →

Partial evidence

“IDEO (pronounced “EYE-dee-oh”) is a global design consultancy helping the world’s most audacious dreamers create braver tomorrows.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceBerlin, GermanyHQ checked Sep 20, 2026501-1,000819 contacts →

Indirect evidence

“We are IBM iX.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceBrooklyn, United StatesHQ checked Sep 20, 2026n/a814 contacts →

Partial evidence

“Smart Design is a strategic design company that helps people live better and work smarter.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 20, 2026201-500705 contacts →

Partial evidence

“Imagination is The Original Experience Design Agency.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceBrooklyn, United StatesHQ checked Sep 20, 2026201-500684 contacts →

Partial evidence

“Work & Co, part of Accenture Song, is a global design and technology company with over 425 people across the United States, Europe, and Latin America.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000596 contacts →

Partial evidence

“Konrad is a global leader in AI and digital innovation consulting providing AI, strategy, design, and technology services to the world’s most ambitious businesses and brands.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceCambiano, ItalyHQ checked Sep 20, 2026501-1,000552 contacts →

Indirect evidence

“Global icon of Italian style, Pininfarina is recognized for its unparalleled ability to create timeless beauty through its values of elegance, purity, and innovation.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceIrvine, CA, United StatesHQ checked Sep 20, 2026201-500461 contacts →

Partial evidence

Design Lives at KTGY.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceSantiago, United StatesHQ checked Sep 20, 2026201-500449 contacts →

Indirect evidence

“Somos una empresa que desde 1996 estamos innovando y asesorando a grandes compañías, tenemos +550 clientes en 15 países,+1.400 proyectos desarrollados y hemos sido speakers en 180…”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceWroclaw, PolandHQ checked Sep 20, 20261,001-5,000448 contacts →

Indirect evidence

“GlobalLogic, a Hitachi Group Company, is a leader in digital engineering.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 20, 2026201-500432 contacts →

Indirect evidence

“Method creates digital products.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceOslo, NorwayHQ checked Sep 20, 202651-200407 contacts →

Indirect evidence

“We believe in articulate, engaging and creative solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 20, 20261,001-5,000391 contacts →

Partial evidence

“Fjord, part of Accenture Song, is a design and innovation consultancy that reimagines people’s relationships with the digital and physical world around them.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceMadrid, SpainHQ checked Sep 20, 2026201-500378 contacts →

Partial evidence

“We are Garaje de ideas, a Design, Technology, Data and Growth agency.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceMontreal, QC, CanadaHQ checked Sep 20, 2026201-500363 contacts →

Indirect evidence

“Nous accélérons la transformation des entreprises et concevons des expériences humaines significatives pour stimuler la croissance à une époque où les données sont primordiales.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceVancouver, BC, CanadaHQ checked Sep 20, 2026201-500357 contacts →

Partial evidence

“We use the power of design to create a better world.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceBaltimore, MD, United StatesHQ checked Sep 20, 2026201-500333 contacts →

Partial evidence

“Hord Coplan Macht is an integrated firm offering planning, architecture, landscape architecture, interior design and environmental graphic design with offices in Baltimore…”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceHuddersfield, United KingdomHQ checked Sep 20, 2026501-1,000328 contacts →

Indirect evidence

“We are built on the principle that powerful, well-implemented brands are instrumental in realising vision and creating growth.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 27,522 interaction design firms worldwide

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Interaction design firms worldwide at a glance

As of Sep 20, 2026
23.8%Verified-email coverage
6.5Average contacts per company
1-10Median size (employees)
2.8%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
21,719
11-50
4,872
51-200
722
201-500
116
501-1,000
27
1,001-5,000
16
5,001-10,000
4
10001+
14

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among interaction design firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for interaction design firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “interaction design firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names interaction design firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among interaction design firms, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 42,801 across the full list. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Interaction design firms by location

129 lists · largest first

Every Interaction 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names interaction design firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many interaction design firms are there worldwide?

RevenueBase identified 27,522 interaction design firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Ciklum, headquartered in London, tops this list with the largest team on record.

Which country has the most interaction design firms?

The United States leads with 4,973 companies, followed by India (2,290) and the United Kingdom (1,557). Every interaction design firms list by country and city is linked on this page.

Which city has the most interaction design firms?

London leads with 767 headquartered companies, followed by New York (411) and San Francisco (277).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 42,801 verified decision-maker contacts tracked across these 27,522 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 Smart Search, 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.