These London-based companies are predominantly involved in online marketplaces, spanning various sectors. The list includes a mix of established enterprises and younger firms founded in the 2010s. Many of these companies focus on connecting users, sellers, or service providers through digital platforms.
Key examples include Deliveroo, a global food delivery service; OnlyFans, a platform for creators to monetize content; FARFETCH, a global platform for luxury fashion; and PeoplePerHour, a freelance marketplace. A notable pattern is the strong presence of software development and retail companies, indicating a concentration in e-commerce and digital services.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Edutechartbees.co.uk
A London-based company is an official Google for Education Partner, offering implementation, configuration, training, and support for Chromebooks and G Suite |
24,990 | |||
| 2 |
Deliveroodeliveroo.co.uk
A global food delivery service working with thousands of restaurants and riders to offer top-notch delivery experiences in multiple countries |
10,910 | |||
| 3 |
Debenhamsdebenhams.com
A British heritage brand offering over 3000 curated brands in beauty, fashion, and homeware, committed to exceptional customer experiences Ultimate online shopping destination |
6,917 | |||
| 4 |
OnlyFansonlyfans.com
A platform empowering creators to express themselves, monetize content, and build connections with fans in a safe and inclusive environment |
5,941 | |||
| 5 |
FARFETCHfarfetch.com
Global platform for luxury fashion connecting creators, curators, and consumers worldwide offering a unique shopping experience with over 1,300 luxury brands |
5,800 | |||
| 6 | 4,473 | ||||
| 7 |
PeoplePerHourpeopleperhour.com
Leading freelance marketplace empowering businesses to hire expert talent on-demand, allowing them to stay flexible and grow while supporting freelancers worldwide |
4,132 | |||
| 8 |
MyTutor.co.ukmytutor.co.uk
Online platform offering one-to-one tutoring to improve educational outcomes, focusing on accessibility and quality learning for all students |
3,933 | |||
| 9 |
Christie'schristies.com
A world-leading art and luxury business offering expert live and online auctions, bespoke private sales, art appraisal, financing, and education globally |
2,926 | |||
| 10 |
Lloyd'slloyds.com
Global marketplace connecting underwriters and brokers to provide insurance and reinsurance solutions through collective intelligence and risk-sharing expertise. |
2,501 | |||
| 11 |
London Stock Exchangelondonstockexchange.com
Global financial marketplace providing extensive access to capital markets and liquidity across multiple asset classes for international businesses, governments, and investment funds. |
2,358 | |||
| 12 |
Zen Educatezeneducate.com
This company is revolutionizing education recruitment by saving schools money on agency fees, providing skilled staff, and offering a user-friendly online platform |
2,147 | |||
| 13 |
GTAdiscover.hotelbeds.com
Connects travel providers with travel sellers globally via technology platform, increasing reach, revenue, and yield. Offers hotels, transfers, and activities. |
1,800 | |||
| 14 | 1,484 | ||||
| 15 |
Prolificprolific.com
Prolific helps research teams gather high-quality human data at scale through a simple platform for AI model development and important research |
1,317 | |||
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 |
Baby Sitterbabysits.uk
This company specializes in digital marketing for childcare businesses, helping attract new customers, increase online presence, and drive growth through various platforms |
1,312 | |||
| 17 |
Cazoocazoo.co.uk
The company aims to revolutionize car buying and selling in the UK with a seamless online experience featuring selection, value, and transparency |
1,300 | |||
| 18 |
AnyVananyvan.com
AnyVan uses technology and innovation to improve delivery and moving processes, providing efficient, affordable, and environmentally friendly services to millions of customers |
1,177 | |||
| 19 |
Trainlinethetrainline.com
A leading platform for rail and coach travel, offering seamless booking, real-time information, and environmentally sustainable options from 270+ carriers in 45 countries |
1,168 | |||
| 20 |
Villagevillage.co
Fostering local connections for buying, selling, and supporting each other to create a more sustainable and community-driven world π‘β»οΈπ |
1,128 | |||
| 21 |
Cometcomet.co.uk
An online electrical retailer offering great deals on technology and appliances from top brands like Samsung, Sony, Apple, and more |
1,121 | |||
| 22 |
Indeed Flexindeedflex.com
Revolutionary app connecting job seekers with temporary work, offering flexibility in where, when, and how they work while supporting employers with high-quality workers |
978 | |||
| 23 |
Amberamberstudent.com
Leading student accommodation platform, facilitating housing search for over 1 million students near 800+ universities in 300+ cities with rapid growth and positive work culture |
955 | |||
| 24 |
Treatwelljobs.treatwell.com
Connects people with beauty and wellness salons across 13 countries using smart salon management software, making treatments accessible and helping businesses grow. |
918 | |||
| 25 |
Freshafresha.com
Online marketplace connecting consumers with beauty and wellness businesses, offering appointment booking, payment, and comprehensive business management software. |
903 | |||
| 26 |
Bonhamsbonhams.com
A prestigious international auction house specializing in fine art, antiques, motor cars, and jewelry Founded in 1793 and highly regarded in the industry |
895 | |||
| 27 | 853 | ||||
| 28 |
Livingston Researchlivingston-research.com
An EdTech company providing personal education support through technology to students globally with a diverse team and focus on development and challenge |
811 | |||
| 29 |
Betfairbetfair.bet.br
Innovative, disrupting online betting exchange focused on creating fair marketplace for customers, with top sports betting and gaming products |
794 | |||
| 30 |
HungryPanda Ltd ηη«ε€εhungrypanda.co
A leading overseas Chinese food delivery company expanding globally, offering Asian food delivery, groceries, vouchers, and recognized in tech industry rankings |
681 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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
- The largest companies in London 12,882
- Multinational companies in London 3,652
- Financial Services companies in London 1,862
- Financial services firms in London 1,824
- SaaS companies in London 1,615
- Professional services firms in London 1,248
- Software Development companies in London 1,217
- Retail chains in London 942
- IT Services and IT Consulting companies in London 693
- Companies with a mobile app in London 667
- Consulting firms in London 648
- IT services companies in London 607
- Subscription businesses in London 544
- Venture capital and private equity firms in London 539
- Marketing and communications agencies in London 533
- Retail Apparel and Fashion companies in London 498
- Advertising Services companies in London 480
- Companies with in-house R&D in London 477
- AI companies in London 456
- Investment Management companies in London 452
- Hotel and hospitality groups in London 445
- Luxury brands in London 428
- AI-native companies in London 407
- E-commerce companies in London 384