Top Search Engine Optimization Companies in the UK

Between them, the 171 IT service providers on this page cover web development (149), web design (148), SEO (126) and UI/UX design (107). They also list work in London. 167 of them have written a profile you can read before you get in touch.

1. 73

   

   Wavemaker

   Social Media Marketing · Web Development · Web Design

   At Wavemaker, our mission is to 'make the future'​. Why? Because we were created with the specific purpose of reinventing the media agency.

   Write a review
2. 74

   

   GENE Commerce

   Web Development · Web Design · UI/UX Design

   WE Help Companies Out-think and Out-manoeuvre Their Online Competitors At GENE we can help you quickly adapt and change to survive in today's world of e-commerce.

   Write a review
3. 75

   

   NDP Studio

   Web Development · Web Design · UI/UX Design

   Welcome to the UK's favorite Digital agency; providing world-class digital consultancy, creative experiences, production, and life-cycle support.

   Write a review
4. 76

   

   Webtise Ltd

   Social Media Marketing · Mobile App Development · Web Development

   Webtise is an award-winning digital marketing and web design agency specializing in:

   Write a review
5. 77

   

   Search Intelligence Ltd

   Mobile App Development · Web Development · Web Design

   Search Intelligence Ltd is an SEO and web development company based in Witney, Oxfordshire.

   Write a review
6. 78

   

   Passle

   Social Media Marketing · Mobile App Development · Web Development

   Passle is an Expert-to-Expert Sales and Marketing platform. It makes it much easier for knowledge-rich, time-poor experts to create insights that demonstrate their expertise online…

   Write a review
7. 79

   

   Design Junkie Ltd

   Social Media Marketing · Web Development · Web Design

   We are a creative agency based in Huddersfield, West Yorkshire that strives to design with a personal touch that exceeds the needs and values of our clients.

   Write a review
8. 80

   

   Boomerang Creative

   Web Development · Web Design · UI/UX Design

   We're your go-to digital agency in Newbury, Berkshire. Our experienced and friendly team of Web Designers, Graphic Designers, Developers, and Digital Marketers have many years of…

   Write a review
9. 81

   

   Agent Software Ltd.

   Web Development · Web Design · UI/UX Design

   Agent Software builds cutting edge software for UK property professionals.

   Write a review
10. 82

    

    Indigo Multimedia

    Social Media Marketing · Mobile App Development · Web Development

    Indigo is an award-winning agency that helps companies solve digital problems. Our story? Happy endings for our clients. We work across the public, private and educational sectors.

    Write a review
11. 83

    

    Invisible Systems

    Web Development · Web Design · Software Development

    Invisible Systems are a dynamic and innovative company based in Cumbria that supply and design a wide range of wireless monitoring systems for a variety of applications.

    Write a review
12. 84

    

    Colewood Internet

    Social Media Marketing · Web Design · Digital Marketing

    We are the website success people! Hollywood has been helping businesses with their online presence since 1999.

    Write a review
13. 85

    

    SixBySix

    Web Development · Web Design · UI/UX Design

    Based in Glasgow, Scotland SixBySix is Magento certified eCommerce specialists with over eight years of experience working with the platform.

    Write a review
14. 86

    

    The Marketing Lounge Partnership

    Social Media Marketing · Digital Marketing · E-Commerce Development

    We are one of the UK’s only combined incentive, loyalty, partnership and CRM agencies – providing the ideas, planning and delivery of campaigns for some of the UK’s biggest…

    Write a review
15. 87

    

    Three Thinking Co.

    Web Development · Web Design · UI/UX Design

    Three Thinking Co is a full-service marketing agency. We offer our clients strategy, design, creative, advertising, public relations, and website development and marketing.

    Write a review
16. 88

    

    DirectionGroup

    Social Media Marketing · Web Development · UI/UX Design

    Full-stack. Global. Problem solvers. They’re just three ways you could describe us. You could also say we’re a marketing agency that specializes in b2b tech. That’s true.

    Write a review
17. 89

    

    Pale Blue Dot Creative

    Social Media Marketing · Web Development · Web Design

    We are an un-pigeonholeable team of thinkers, makers, and organizers. We find interesting ways to convince, compel and cajole; disrupt, define and deliver.

    Write a review
18. 90

    

    The Developer Society

    Web Development · Web Design · UI/UX Design

    Dedicated to creating technology to make the world a better place, we are the world’s first nonprofit team of developers and campaigners run by and for the nonprofit sector.

    Write a review
19. 91

    

    Person Centred Software Ltd

    Web Development · Web Design · iOS App

    About Mobile Care Monitoring from Person Centred Software www.personcentredsoftware.com, Person Centred Software is a family-run, UK-based tech company that is helping solve the…

    Write a review
20. 92

    

    3B Digital Ltd.

    Social Media Marketing · Web Development · Web Design

    3B is a busy & boisterous boutique "full-service"​ agency specializing in Open Source CMS and web solutions (particularly Joomla), website design and component development, search…

    Write a review
21. 93

    

    Inbox Insight

    Social Media Marketing · Web Design · Digital Marketing

    Inbox Insight B2B Content Amplification Inbox Insight is a B2B Performance Marketing company and the gateway to a global community of 3.5M+ engaged business professionals,…

    Write a review
22. 94

    

    Learning Pool

    Web Development · Web Design · UI/UX Design

    Specializing in providing affordable solutions, Learning Pool offers a complete learning technologies service that includes a library of responsive and editable content, Adapt…

    Write a review
23. 95

    

    ADZ Creative & Digital Limited

    Mobile App Development · Web Development · Web Design

    ADZ Media is a successful advertising agency and web design company located in Manchester UK with a talented team of creative and skilled designers, Google specialists,…

    Write a review
24. 96

    

    Finalsite UK

    Social Media Marketing · Web Development · Web Design

    Since 1998, Finalsite has been bringing cutting-edge web design and web software to leading independent schools, colleges, and organizations around the world.

    Write a review

Articles

Related reading

Articles on this subject first, then the newest.

All articles

United Kingdom

17 Sept 2026 · TrustList Editorial

Startup funding in the UK: the 2026 guide for founders

SEIS, EIS, VCTs, R&D tax relief, Innovate UK, British Business Bank programmes, angel networks and London accelerators: how UK startup…

Search Engine Optimization

17 Sept 2026 · TrustList Editorial

How to choose an SEO agency: the 2026 buyer's guide

What legitimate SEO work involves, what Google's spam policies say to avoid, the questions Google suggests asking, and how to keep control…

Shopify

15 Jul 2026 · Pritesh Vegad

Shopify Plus vs Adobe Commerce: A 2026 comparison guide

In the quick running world of eCommerce , picking the most suitable enterprise platform can genuinely make or break your digital success.…