864 agencies indexed·Latest entry: 2 September 2026
Service · 507 agencies

SEO agencies.

SEO is the discipline of earning the right traffic from Google for free, plus - increasingly in 2026 - being chosen, cited, and summarised by AI answer engines like ChatGPT, Perplexity, and Google's AI Overviews. Done well it compounds. Done poorly it's expensive theatre.

At a glance
  • 507 UK agencies offering seo
  • Across 41 UK locations
  • Reviewed 17 May 2026
Showing 313-336 of 507 seo agenciesView in full archive
Netpeak Digital Agency logo
Netpeak Digital Agency
Independent·London·51-200 Employees

Established in 2006, Netpeak is a leading digital marketing agency in London, UK. Our broad spectrum of services, encompassing SEO, social media marketing, conversion rate optimisation, and mobile app marketing, sets us apart. We employ a data-driven methodology to substantially boost our clients' revenue. At Netpeak, we prioritise process automation and transparency, underpinned by our unique m

The Inter Group logo
The Inter Group
Independent·Leeds·11-50 Employees

The Inter Group (TIG), a leading digital marketing agency, is nestled in the heart of Knaresborough, North Yorkshire. Showcasing a unique blend of media, creativity, technology, and data, we offer a wide range of customised marketing services that breathe life into our clients' visions. TIG, backed by more than half a century of industry experience, has built a formidable reputation, earning the t

Social Media logo
Social Media
Independent·London·2-10 Employees

As a leading digital agency rooted in London, Social Media distinguishes itself through an unwavering commitment to trailblazing in the digital landscape. This firm constantly explores the latest technologies and strategies, empowering clients with inventive solutions for a competitive edge. Upholding an ethos grounded in quality and superiority, this agency transcends the role of a standard servi

GrowCreate logo
GrowCreate
Independent·Oxford·11-50 Employees

Specialising in UX design and .NET web development, GrowCreate is a UK-based digital agency renowned for its exceptional support services available 24/7. Our unique selling point lies in our agile development methodologies, proficiency in managing AWS and Azure cloud platforms, and our commitment to delivering smooth and efficient digital experiences to international brands. As an esteemed Umbraco

Socialtrend logo
Socialtrend
Independent·Manchester·11-50 Employees

Based in Manchester, UK, Socialtrend is a leading digital advertising and social media consultancy delivering innovative solutions globally. Distinguishing itself through a unique approach to digital marketing, Socialtrend employs the latest techniques across a multitude of platforms to amplify brand visibility and interaction. This is evident in their viral campaigns such as the Roast Dinner Wrap

Hive19 logo
Hive19
Specialist·Brighton·2-10 Employees

Hive19 shines as a top-tier link development company situated in Brighton, East Sussex. This agency distinguishes itself with a keen emphasis on relevancy, delivering bespoke link building approaches that enhance search engine rankings, bolster organic traffic, and expedite the expansion of brands. Their exclusive HiveRank® system seamlessly merges diverse data points and specialist knowledge to p

Brew Digital logo
Brew Digital
Independent·Norwich·11-50 Employees

Brew Digital, a pioneering digital marketing firm with operations in London, Norwich, Toronto, and Kuala Lumpur, is renowned for its inventive decision-making and teamwork strategies. Our agency supports businesses in devising effective digital strategies that yield measurable outcomes. At Brew Digital, we're distinguished for cultivating enduring relationships underpinned by a positive, honest, a

gloversure logo
gloversure
Independent·Chester·11-50 Employees

As a leading digital agency in Welshpool and Chester, Gloversure is celebrated for its dedication to transforming the online sphere. Pioneering in the digital industry, Gloversure operates on a foundation of creativity and transparency, offering an extensive array of services such as bespoke web design, custom development, eCommerce solutions, mobile app development, branding, and marketing. Our e

Diony logo
Diony
Independent·Leeds·11-50 Employees

Diony, based in Hull, is a fully-fledged performance marketing agency renowned for its search-first marketing strategy. Our services span across SEO, PPC, social media, eCommerce, and imaginative solutions, all designed to propel brand expansion. Employing a unique blend of expert talent, innovative technology, and a vibrant culture, Diony is dedicated to crafting and executing influential concept

Gavin Willis Creative Marketing logo
Gavin Willis Creative Marketing
Independent·Northampton·2-10 Employees

Gavin Willis Creative Marketing (GWCM) is a prominent digital marketing and web design agency rooted in Northampton and Shoreditch, London. With an impressive track record of 28 years, GWCM is renowned for its strategic prowess and extensive service range, encompassing branding, digital marketing, video production, and WordPress support services. These services are instrumental in elevating brand

KINESSO logo
KINESSO
Network·London·501-1000 Employees

As a leading agency based in London, KINESSO provides innovative, technology-driven performance marketing solutions designed to achieve tangible business results. Our core services encompass Consulting, Data & Tech, Media, Experience, and Content. We leverage advanced automation, AI capabilities, and first-party data to enhance and optimise the connection between brands and their target audiences.

Sweans logo
Sweans
Independent·London·51-200 Employees

Situated in the heart of London, Sweans proudly positions itself as a premier web design and eCommerce agency, celebrating over 16 years of industry expertise. Specialising in WordPress, Shopify, and bespoke eCommerce solutions, Sweans is committed to elevating Direct-to-Consumer (D2C) brands. With a global portfolio of more than 3,000 fulfilled clients, Sweans takes immense pride in delivering cu

Digithrive for Schools logo
Digithrive for Schools
Specialist·London·11-50 Employees

Digithrive for Schools, a premier digital and creative agency headquartered in London, delivers bespoke marketing solutions specifically for independent schools. This agency, as a subsidiary of Zest Media Group, harnesses a robust database of over 100,000 contacts and collaborates with prominent digital platforms such as Facebook and Google for crafting high-impact school marketing campaigns. The

It Works Media logo
It Works Media
Independent·Leeds·2-10 Employees

It Works Media, a Leeds-based SEO agency, is renowned for delivering potent outcomes in the realm of search marketing. The distinctive edge of It Works Media lies in their bespoke approach to diverse marketing services such as Digital PR, SEO, and content marketing. Each strategy is meticulously crafted to align with the specific requirements and objectives of every brand, thereby guaranteeing opt

Barracuda Digital logo
Barracuda Digital
Independent·London·11-50 Employees

Barracuda, a prominent digital marketing firm in London, UK, stands out due to its recognised skillset and inventive commercial creativity. It specialises in driving transformative results for its clients through a blend of expert knowledge, extensive experience, and pioneering methods. Barracuda provides an array of services encompassing SEO, paid media, user testing, CRO, analytics and tracking,

LoudLocal logo
LoudLocal
Independent·London·2-10 Employees

LoudLocal, a reputable digital marketing agency headquartered in Kenilworth, Warwickshire, boasts a secondary office in London. Specialising in delivering clear, straightforward digital marketing solutions, this agency is dedicated to addressing the unique requirements of small to medium-sized businesses at a local and global level. With an ethos centred around flexibility, LoudLocal shuns the con

We Are Marketable logo
We Are Marketable
Independent·Nottingham·2-10 Employees

We Are Marketable, a Nottingham-based digital marketing agency specialising in lead generation, is distinguished by its commitment to producing tangible results. Our unique approach involves customising digital marketing strategies to meet individual client requirements, facilitating increased leads and sales without resorting to gimmicks. Boasting over 15 years of industry experience and advocati

Barques logo
Barques
Independent·Birmingham·11-50 Employees

Barques is a Birmingham-based creative agency, specialising in producing compelling communications that stimulate growth for brands, irrespective of their scale. Barques stands out due to their cooperative methodology, amalgamating state-of-the-art design with pioneering technology to craft tangible assets that engage audiences on diverse platforms. Their internal team comprises designers, develop

Axonn Media logo
Axonn Media
Independent·London·2-10 Employees

Axonn is a premier digital marketing agency headquartered in London, renowned for its unique integration of cutting-edge technology and a keen focus on emotional connectivity. This distinctive approach places personal touch at the heart of all their campaigns and client relationships. Their all-encompassing services range from strategic planning, content production, campaign execution, to insightf

Dandy Marketing logo
Dandy Marketing
Independent·London·2-10 Employees

Dandy Marketing is a London-based digital marketing firm, renowned for its expertise in catering to SMEs. Setting Dandy Marketing apart is their unwavering dedication to innovation and transparency, providing unrestricted services devoid of binding contracts, whilst focusing on strategies that are not only cost-effective but yield substantial results. They are masters of augmenting their clients'

WCS Agency logo
WCS Agency
Independent·Cardiff·2-10 Employees

WCS Agency, a dynamic marketing and PR firm located in Cardiff, embodies the fusion of creativity and strategy, deeply rooted in Welsh heritage yet extending its influence globally. This agency distinguishes itself with a steadfast team of professionals, leveraging cutting-edge tools to deliver targeted, strategic, and impactful marketing outcomes. WCS Agency's commitment goes beyond superficial m

Eleven Marketing & Communications logo
Eleven Marketing & Communications
Independent·Chester·11-50 Employees

As a leading UK-based strategic creative agency, Eleven excels in crafting engaging brands, campaigns, and content for non-profit organisations. Through our unique Whole Picture Thinking™ framework, we adopt an innovative and disciplined approach to every project. This allows us to deliver remarkable value to our clientele. By prioritising strategic creativity, Eleven has successfully spearheaded

Zest Digital logo
Zest Digital
Independent·Oxford·11-50 Employees

As a top-tier growth marketing agency, Zest Digital proudly holds numerous accolades and operates from various locations including Oxford, Bristol, Birmingham, London, New York, and Amsterdam. Known for our comprehensive and scalable growth marketing strategies, we specialise in an array of services including PPC, SEO, content creation and more. Our signature products, the Growth Engine and Growth

Upperdog logo
Upperdog
Independent·Bournemouth·11-50 Employees

Upperdog is a UK-based, data-driven digital marketing firm. This agency differentiates itself through its all-inclusive digital marketing strategy, providing services encompassing website development, PPC initiatives, social media promotions, and SEO, all purposefully crafted to deliver measurable outcomes for its clients. Upperdog takes great pride in its cooperative and open communication, prefe

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Editor's note
The UK has roughly 476 agencies that put SEO at the top of their service list. They split into three buckets: boutique consultants and small specialist shops charging £500-3,000 a month; mid-market agencies running fuller programmes at £1,500-7,500; and network or holding-group agencies billing £7,500-20,000 and up for enterprise work. In 2026 the discipline has expanded. Traditional ranking optimisation still matters - Google Search Central is clear that crawlability, helpful content, and trust signals carry the same weight as they always did. But visibility now also means being cited in AI Overviews and surfaced by ChatGPT and Perplexity. Most credible UK agencies are quietly absorbing this as Generative Engine Optimization (GEO) without making it a separate service line. A few are loud about it. Watch for which.
Typical cost
£500-20,000+
per month, retainer

Boutique / freelance £500-3,000 · Mid-market £1,500-7,500 · Network £7,500-20,000+. One-off audits £1,500-10,000.

Realistic timeline
3-12 months
to compounding results

1-3mo technical foundations · 3-6mo ranking and traffic gains · 6-12mo+ revenue compounding.

Red flags
5 to watch
in any pitch
  • · Guaranteed rankings or 'top 3 in 30 days' promises
  • · Pure performance-based pricing (misaligns incentives)
  • · Aggressive link building or 'private networks' (PBNs)
  • · Vague reporting that won't connect to revenue
  • · No request for Search Console + analytics access
Frequently asked

What brands ask about seo agencies.

5 questions our editors get most often, answered honestly. No agency-marketing speak.

Curated by humans

UK SEO retainers in 2026 split into three tiers: boutique consultants and small specialist shops run £500-3,000 a month, mid-market agencies £1,500-7,500, and network or holding-group shops £7,500-20,000+. One-off audits land between £1,500 and £10,000 depending on site complexity. Pure performance-based pricing exists but tends to misalign incentives - Google Search Central itself warns against providers leaning on guarantees rather than process.