| # | Company | Employees |
|---|---|---|
| 1 |
Clinicclinic.co.uk
Independent creative agency crafting bold ideas to drive action and change, with a focus on people's experiences and problem-solving for brands |
19,192 |
| 2 |
EssenceMediacomessencemediacom.com
EssenceMediacom is a leading agency focused on delivering marketing breakthroughs for brands through integrated media solutions and continuous learning |
12,000 |
| 3 |
Publicis Mediapublicisgroupe.com
A global media company within Publicis Groupe, employing data-driven solutions and platform-based technologies to deliver client value and drive growth internationally |
11,033 |
| 4 |
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 |
| 5 | 8,179 | |
| 6 |
Wavemakerwavemakerglobal.com
Wavemaker specializes in Provocative Planning to drive growth by combining machine learning and human intelligence for better outcomes and consumer experiences #GrowFearless #PositiveProvocation |
7,200 |
| 7 |
Mindsharemindshareworld.com
A media services company that accelerates enduring and sustainable business growth for clients through data and behavioral science, connecting brands with consumers |
6,729 |
| 8 |
Toptaltoptal.com
A network connecting top talent in business, design, and technology to help companies scale teams on demand with impressive growth |
6,417 |
| 9 |
FinTech Foundryfinancemarketing.org
The company specializes in making finance more approachable through business consultation, brand strategy, and digital marketing services for financial services companies |
5,914 |
| 10 |
BOUTIQUEweareboutique.co.uk
A fiercely independent agency focused on delivering ambitious media, digital, PR, and social solutions for clients driven by growth and results |
5,825 |
| 11 |
PHDphdmedia.com
Global media agency network combining data, technology, and human expertise to create innovative campaigns and transform brand experiences worldwide. |
5,700 |
| 12 |
Zenithzenithmedia.com
A global agency specializing in media, data, technology, commerce, and content to drive successful business outcomes for clients worldwide |
5,382 |
| 13 | 5,067 | |
| 14 | 4,218 | |
| 15 |
CPM Internationalcpm-int.com
International agency providing sales outsourcing, customer experience, merchandising, sampling, and data-driven solutions across multiple sectors and markets. |
4,184 |
| 16 |
Simulation AImarketizon.com
Aviation Marketing is a specialized agency offering strategic marketing solutions to help aviation companies achieve their business goals through digital marketing strategies |
4,007 |
| 17 |
Alphaalphacrc.com
Multilingual content solutions provider delivering transcreation, software localization, audiovisual services, and AI-based translation across digital, games, fashion, automotive, financial, and medical sectors. |
3,977 |
| 18 |
OLIVER | The Brandtech Groupoliverinside.ai
Design and operate bespoke in-house agencies and ecosystems for brands, driving business growth and innovative marketing solutions globally. |
3,870 |
| 19 |
Salon Marketingmarketinglo.com
Salon Marketing specializes in helping hair and beauty businesses generate leads, increase bookings, and boost revenue through strategic branding and marketing services |
3,558 |
| 20 |
WPP Productionwppproduction.com
Global content production company integrating creative producers, AI, and virtual production to deliver innovative, fast, and scalable marketing content solutions. |
3,507 |
| 21 |
Framestorelnk.bio
A global company combining talent and technology to create pixel-perfect images for blockbuster films, TV, advertising, and immersive experiences |
3,343 |
| 22 |
Hogarthwppproduction.com
Creative production company combining craft, insight, and technology to bring creative work to life across global locations. |
3,262 |
| 23 |
e-Commercemedia7.net
This company specializes in eCommerce services, creating online shopping platforms that are secure, user-friendly, and designed to convert shoppers into customers |
3,208 |
| 24 |
Mothermotherfamily.com
A globally respected, independent creative agency with offices worldwide, specializing in creating culturally impactful ideas for a diverse range of clients |
3,065 |
| 25 |
Automotive Market
The company offers comprehensive social media marketing services, including strategy, content creation, campaign management, and data analysis to help businesses thrive online |
3,000 |
| 26 |
Two Circlestwocircles.com
Management of extensive fan data to enhance audience engagement and increase revenue for leading sports and entertainment organizations worldwide. |
2,877 |
| 27 |
Paragonparagon.world
A leading provider of business services offering technology-driven solutions to improve client performance, increase efficiency, and adapt to market demands |
2,530 |
| 28 |
Video AImarketinglo.com
This company specializes in creating engaging, converting, and thought-provoking video marketing campaigns to empower brands, organizations, and agencies globally |
2,509 |
| 29 | 2,373 | |
| 30 |
Wellness Marketing Agencyremolia.com
This wellness marketing agency helps businesses build trust and credibility, strategize marketing campaigns, and launch ground-breaking products for wellness brands |
2,314 |
| 31 |
EY Studio+ey.com
Global team combining design, technology, and commercial insight to enhance customer experience and drive business transformation across industries. |
2,270 |
| 32 |
Self-employmentuk.linkedin.com
Specialists in branding and e-commerce website development for startups and small businesses, offering tailored solutions from concept to launch |
2,127 |
| 33 |
Marketizonmarketizon.com
Innovative multi-channel marketing technologies leader dedicated to creating effective campaigns, transforming users into followers, and achieving business goals through digital marketing strategies |
2,123 |
| 34 |
Self empoyeduk.linkedin.com
A company that operates on a self-employed basis, providing services or products independently without being affiliated with any specific organization |
2,108 |
| 35 |
Bright Networkemployers.brightnetwork.co.uk
Connects top companies with bright graduates using data and technology to offer career opportunities and fulfill business talent needs. |
2,100 |
| 36 |
Cubacuba-london.co.uk
Integrated marketing agency specializing in creating campaigns based on insights to drive sales for clients through advertising, direct, digital, film, branding, and repro services |
2,073 |
| 37 |
Young Professionalsyoung-professionals.uk
This company connects schools and colleges with companies to help place school leavers into apprenticeships and work experience programs with top brands |
2,029 |
| 38 |
Omnicom Media UKomnicommediagroup.com
Connects diverse media agencies using a marketing orchestration system to provide relevant consumer experiences and inclusive environments through award winning strategic planning. |
1,963 |
| 39 |
We Are Socialwearesocial.com
A global creative agency specializing in social media, crafting ideas that resonate with online communities to reach targeted audiences effectively |
1,926 |
| 40 |
Librarylibrary-agency.com
A creative agency based in Brighton, specializing in working with food, drink, and lifestyle brands that are purpose-driven Certified B Corp |
1,842 |
| 41 | 1,828 | |
| 42 |
Higher Education Marketingmarketinglo.com
This company specializes in education marketing, using creativity and strategic expertise to attract students and drive businesses forward in the education sector |
1,790 |
| 43 | 1,730 | |
| 44 | 1,593 | |
| 45 |
Kitchenkitchensoho.com
A team of creative individuals who develop brand-focused ideas in-house through research, planning, design, and more for impactful results |
1,559 |
| 46 |
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 |
| 47 |
APS Grouptheapsgroup.com
A global marketing and communications company founded in 1961, focusing on empowering brands through creativity, content creation, and production expertise |
1,479 |
| 48 |
TCCwearetcc.co.uk
Creative agency specializing in branding and strategy since 1985, offering tailored solutions for brand challenges through identity, campaigns, and strategic thinking |
1,441 |
| 49 |
Ashfield, part of UDG Healthcare (now Inizio)inizio.com
Strategic partner in health and life sciences, providing advisory, medical, marketing, communication, and patient engagement services throughout the drug lifecycle |
1,439 |
| 50 |
Yellsmartrecruiters.com
A leading UK provider of digital marketing services connecting businesses and customers with free and paid profiles, websites, and advertising solutions |
1,438 |
| 51 |
Key Page Mediakeypagemedia.com
Specializing in marketing strategy, website design, SEO, and business coaching for small businesses to boost customer numbers and sales |
1,436 |
| 52 |
ESL FACEIT Group - EFGeslfaceitgroup.com
Leading competitive games and esports company helping brands engage youth audiences through authentic activation, creating community beyond gameplay |
1,412 |
| 53 |
Paragon UKparagon.world
Providing data-driven, multichannel marketing, transactional communications, and automated workflows to digitize and enhance customer communication journeys securely and compliantly. |
1,411 |
| 54 |
Influencerinfluencer.com
Global agency delivering creator-first solutions through proprietary technology and platform partnerships to drive measurable brand impact, humanize businesses, and connect with audiences. |
1,346 |
| 55 |
adm Indiciaadm-indicia.com
Create and activate meaningful brand experiences that drive ROI by connecting with audiences throughout the customer journey effectively. |
1,334 |
| 56 |
Avalere Healthavalerehealth.com
Avalere Health is a commercialization partner for biopharmaceutical, medical technology, and wellness industries, helping clients navigate healthcare and accelerate innovation for better health |
1,295 |
| 57 |
Leisure Marketing
A full-service creative agency specializing in marketing for the leisure sector, driving visitor numbers and delivering strategic growth for clients |
1,271 |
| 58 |
Design Bridge and Partnersdesignbridge.com
Creative company specializing in brand strategy, identity, communications, and management, serving iconic global brands and innovative startups worldwide. |
1,151 |
| 59 | 1,136 | |
| 60 |
Householdhousehold-design.com
A global agency specializing in brand, experience, and retail innovation with a focus on creativity and high ethical standards |
1,119 |
| 61 |
T&Ptandpgroup.com
A full-service independent agency network partnering with WPP & GroupM, combining diverse talent to transform brand building with innovation & creativity |
1,114 |
| 62 |
Fashion Marketingcreative.me.uk
A fashion freelancing company offering services from conceptual design, patternmaking, and production to styling, photography, and marketing for brands and designers |
1,110 |
| 63 | 1,098 | |
| 64 |
TLC Worldwidetlc-worldwide.com
This company has been offering free experiences to clients' customers for 30 years, connecting them with thousands of rewarding activities and services globally |
1,093 |
| 65 |
LOCALiQ_UKlocaliq.co.uk
Trusted local news provider offering digital marketing services to help businesses reach new customers, backed by extensive experience and data |
1,085 |
| 66 |
Paintingdomains.atom.com
Partners with brands to drive paid social user acquisition, helping UK tech start-ups scale and innovative brands launch apps and services. |
1,068 |
| 67 |
Creative Agency
A London-based Digital Marketing Agency offering services in Paid Search, SEO, Programmatic, Affiliate, and Social Media marketing for small to medium-sized businesses |
1,066 |
| 68 |
Personal Branding Agency
This company helps entrepreneurs build profitable personal brands through branding design, brand consultancy, trademark advice, and social media growth strategies |
1,050 |
| 69 |
Medical practicethehealthmarketing.com
Innovative healthcare marketing agency providing digital marketing services for medical practices, healthcare businesses, and medical device companies to achieve success |
1,042 |
| 70 |
Ten Lifestyle Grouptenlifestylegroup.com
Ten partners with global financial institutions and premium brands to offer exclusive travel, dining, entertainment, and lifestyle benefits to wealthy clients worldwide |
1,024 |
| 71 |
TPAtpagency.com
Established independent marketing and digital agency in the Channel Islands, driving business-changing results through strategic excellence and digital expertise for over 25 years |
1,023 |
| 72 |
Uber Agencyuberagency.com
Creative advertising agency focused on brand development, offering communication services with a straightforward approach Recognized by industry publications and recommended agency |
1,022 |
| 73 |
Beauty Marketing Agencygrowth.me.uk
A beauty marketing agency that helps brands in the cosmetic industry stand out with strategic social media, influencer marketing, SEO, and more |
1,017 |
| 74 |
1973 Ltd1973ltd.com
An experienced marketing agency specializing in email and automation, delivering bespoke solutions for companies of all sizes with certified experts |
1,008 |
| 75 |
Sales Partnerssalespartners.io
Specialist recruitment services connecting top sales talent with leading organisations through professional sourcing and placement strategies focused on cultural alignment and growth. |
994 |
| 76 |
Footballcofootballco.com
A team of 300+ experts in football content creation, strategy, design, and production, showcasing all aspects of the sport globally |
980 |
| 77 |
VSI / Voice & Script Internationalvsi.tv
Specialises in localisation of media content with translation, subtitling, voice-over, dubbing, and project management across multiple languages worldwide. |
963 |
| 78 |
Isobardentsucreative.com
Global creative agency focusing on strategy, innovation, product/experience, brand design, and communications/content Award-winning work for top clients in brand and experience design |
943 |
| 79 | 941 | |
| 80 |
Community Marketingbiaster.com
This company helps businesses build and engage online communities through strategic messaging, editorial planning, and platform diversification to drive trust and ROI |
927 |
| 81 |
CPM UKcpm-int.com
Provides integrated brand activation and customer engagement solutions across multiple sectors, leveraging skilled teams and agile resource deployment. |
924 |
| 82 |
M+C Saatchi UKmcsaatchi.com
An independent creative agency specializing in simplifying complex categories and businesses through Brutal Simplicity of Thought |
904 |
| 83 |
Imaginationimagination.com
Experience Design Company specializing in consulting, destinations, content, and live experiences for global clients, challenging the status quo with creative solutions |
887 |
| 84 |
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 |
| 85 |
Sushithesushiagency.co.uk
Global digital marketing agency passionate about creative solutions for social media, websites, and more Experienced team serving diverse clients worldwide |
879 |
| 86 |
Hotal, Total Hospitalityhotal.co.uk
They provide tailored sales, marketing, and data solutions for hospitality and attraction businesses in Europe They offer full hospitality services and an innovative online listing platform |
873 |
| 87 | 872 | |
| 88 | 847 | |
| 89 |
Contentsiocontentsio.com
A content marketing agency in the UK that creates engaging content, devises strategies, and fulfills digital marketing needs for businesses |
835 |
| 90 |
Social Media Agency
Specializing in social media marketing, this company offers strategy, content creation, campaign management, and data analysis to help businesses thrive online |
831 |
| 91 |
DC Thomsondcthomson.co.uk
A leading UK media organization diversifying into publishing, digital technology, radio, TV, events, genealogy, cloud solutions, and a variety of media brands |
815 |
| 92 |
Clothing Marketing
Creating magical digital experiences to attract and retain lifetime customers by partnering with clients for successful branding and recognition |
809 |
| 93 |
TEAM LEWISteamlewis.com
Creative campaigns development for commercial and community causes with a global presence spanning Asia, EMEA, and North America. |
785 |
| 94 |
Verian Groupveriangroup.com
Leading agency providing research, evidence, evaluation, and communications services to government and public realm clients to solve public policy challenges. |
781 |
| 95 |
adm Groupadmgroup.com
Creation and activation of meaningful brand experiences driving ROI by connecting with audiences throughout the customer journey effectively. |
777 |
| 96 |
Archantnewsquest.co.uk
Transforming local media by connecting communities with news/lifestyle content and offering innovative marketing solutions Committed to personal development and partnership with Google |
769 |
| 97 |
GAINthisisgain.com
Creative-led and insight-driven company blending data, technology, and creativity to deliver meaningful impact and bold strategies that move people, brands, and businesses forward. |
759 |
| 98 |
Ashfield MedComms, an Inizio Companyashfieldmedcomms.com
Global leaders in medical communications, combining science and creativity to bring clarity to complex healthcare topics for impactful results |
751 |
| 99 |
Incubetaincubeta.com
A global team of 800+ experts across 20 offices offering digital services to unlock business growth for clients like Google, Hyundai, and Netflix |
750 |
| 100 |
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 |
Turn this list into pipeline
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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 Oct 24, 2026.
More company lists in the United Kingdom
- The largest companies in the United Kingdom 30,833
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- Financial Services companies in the United Kingdom 3,344
- Retail chains in the United Kingdom 2,831
- Software Development companies in the United Kingdom 2,393
- IT Services and IT Consulting companies in the United Kingdom 1,442
- Retail companies in the United Kingdom 1,292
- IT services companies in the United Kingdom 1,257
- Wellness and Fitness Services companies in the United Kingdom 1,044
- Hospitality companies in the United Kingdom 999
- Family-owned companies in the United Kingdom 959
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- E-commerce companies in the United Kingdom 925
- Consumer goods companies in the United Kingdom 743
- Hotel and hospitality groups in the United Kingdom 740
- Distributors and wholesalers in the United Kingdom 739
- Retail Apparel and Fashion companies in the United Kingdom 738
- Advertising Services companies in the United Kingdom 713
- Food and Beverage Manufacturing companies in the United Kingdom 713
- Hospitals and Health Care companies in the United Kingdom 710
- Insurance companies in the United Kingdom 669
- Healthcare providers in the United Kingdom 651
- Online-only businesses in the United Kingdom 647