London's design services sector features a mix of large, established consultancies and specialized agencies. Companies like Arup, a global collective focused on sustainable development, and SYSTRA UK & Ireland, an engineering and consulting group, highlight the presence of major players. Alongside these, firms such as Event, specializing in large-scale exhibitions, and Household, focusing on brand and retail innovation, demonstrate the diverse expertise available.
The data shows a strong concentration of design capabilities, ranging from broad-scope engineering and architectural design to highly specialized areas. For instance, GP focuses on medical website design, while Freelance UI/UX Designer provides expertise in digital interfaces. This blend indicates a mature market with both comprehensive service providers and niche specialists.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 26,193 | ||||
| 2 |
Brand Management Agencybrandinglo.com
Empowering businesses to unlock their brand's potential through brand management, asset management, marketing services, and expert guidance for growth and success |
9,080 | |||
| 3 |
GPmedia7.net
Specializing in medical website design, our agency creates engaging healthcare websites with comprehensive marketing solutions to assist healthcare providers and medical device companies in succeeding |
3,873 | |||
| 4 |
Eventmuseumstudio.com
A global experience design agency specializing in large-scale exhibitions, spaces, and experiences for museums, institutions, and organizations worldwide Expertise in conceptualization, design, and realization |
1,540 | |||
| 5 |
Royal College of Artrca.ac.uk
Specialist postgraduate university offering art, design, architecture, and humanities programs focused on innovation, research, and global challenge solutions. |
1,452 | |||
| 6 | 
Freelance UI/UX Designerfreelancehubs.com
This company provides freelance services for UI/UX design projects, focusing on creating user-friendly and visually appealing digital interfaces |
1,228 | |||
| 7 |
Creative Agencyme.uk
This company specializes in connecting businesses with freelance graphic designers and other experts to meet their specific design needs and timeline |
1,122 | |||
| 8 |
Householdhousehold-design.com
A global agency specializing in brand, experience, and retail innovation with a focus on creativity and high ethical standards |
1,119 | |||
| 9 |
Freelance Graphic Designerfreelancehubs.com
The company offers freelance services in logo design, branding consulting, web design (CSS expertise), and graphic design to clients |
883 | |||
| 10 |
Brandinglobrandinglo.com
The company provides career opportunities in various industries, offering permanent and temporary roles, career advice, training, and placements from support roles to IT Director |
881 | |||
| 11 | 786 | ||||
| 12 |
SYSTRA UK & Irelandsystra.com
A leading engineering and consulting group specializing in infrastructure and mobility solutions, creating, improving, and modernizing infrastructure for over 50 years |
754 | |||
| 13 |
Motelmoteldesign.com
Specializing in brand strategy, design, and digital solutions, we help businesses grow strategically by turning their unique qualities into competitive advantages for sustained growth |
741 | |||
| 14 |
Pentagrampentagram.com
A unique design studio with 24 partners who create graphics, architecture, products, websites, and more with passion and personal commitment |
729 | |||
| 15 |
Everywhereweareeverywhere.co.uk
A digital studio transforming businesses with powerful products and services, serving key clients such as Nike, Virgin Atlantic, and Burberry |
682 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
JKRjkrglobal.com
A design-led creative company with over 300 employees in London, New York, and Shanghai, offering design, strategy, trends, innovation, and brand identity services |
664 | |||
| 17 |
Kotokoto.studio
Global creative agency specializing in brand and digital marketing for impactful companies, with a focus on visionary founders shaping the future Operating across multiple international locations |
664 | |||
| 18 |
D&ADdandad.org
A global organization promoting and awarding creative excellence in business communication, providing support to creative professionals worldwide |
545 | |||
| 19 |
FutureBrandfuturebrand.com
Global community of experts delivering brand-led business transformation through unique methods, emphasizing the belief that brand is behavior |
534 | |||
| 20 |
SolidWorks Designerfreelancehubs.com
A platform for Solidworks users to connect, share knowledge, and collaborate within a supportive community focused on design and engineering |
532 | |||
| 21 |
Zebrazbr.global
Global design and architecture consultancy with 25 years of retail and hospitality experience, specializing in consumer-focused experiences to connect brands with consumer needs |
528 | |||
| 22 |
Design Councildesigncouncil.org.uk
An independent charity advising the UK Government on design, dedicated to improving lives through better places, products, processes, and performance |
498 | |||
| 23 |
Fjord, Part of Accenture Songaccenture.com
Design and innovation consultancy creating services people love, simplifying complex systems through human-centered design for leading businesses worldwide |
498 | |||
| 24 |
WXO - World Experience Organizationworldxo.org
A community of experience thought-leaders collaborating and innovating to enhance profits, wellbeing, and society's betterment |
405 | |||
| 25 |
Bulletproofwearebulletproof.com
Global brand agency with studios worldwide, specializing in creating successful brands for clients of all sizes and industries through strategic partnerships |
365 | |||
| 26 |
PDDpddinnovation.com
Global innovation consultancy creating products and experiences through Human Centred Design for businesses and startups, focusing on responsible and profitable innovations |
365 | |||
| 27 |
I-AMi-amonline.com
A company specializing in People Inspired Experiences, driven by customer insight, with a team of creative minds from various disciplines |
338 | |||
| 28 |
Atelier Tenatelierten.com
Consulting on sustainable building design, energy efficiency, lighting, fire engineering, and environmental planning to enhance comfort and reduce environmental impact. |
308 | |||
| 29 |
TSK Grouptskgroup.co.uk
Innovative workplace solutions company, focusing on human-centered design, strategic delivery, and ongoing support to enhance employee experience and business success |
255 | |||
| 30 | 249 | ||||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
More company lists in London
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