842 agencies indexed·Latest entry: 17 July 2026
Service · 493 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
  • 493 UK agencies offering seo
  • Across 37 UK locations
  • Reviewed 17 May 2026
Showing 1-24 of 493 seo agenciesView in full archive
STRINGERSEO Limited logo
STRINGERSEO Limited
Independent·Brighton·2-10 Employees·Verified

We help businesses grow online without the digital jargon. Working alongside business owners and their teams, we build websites and digital experiences that actually work for real users. Our focus? Creating SEO and content approaches that connect UK brands and small to medium businesses with the people they're trying to reach. The online world is crowded and complex. We cut through that noise with

Mobiteam UK logo
Mobiteam UK
Independent·London·11-50 Employees·Verified

Mobiteam, a renowned creative, design, and development agency, is strategically located in London. Best known for its bespoke web design and development services, Mobiteam excels in crafting visually appealing and top-tier websites, customised for corporate, personal, and eCommerce needs. The unique selling proposition of Mobiteam lies in its dedication to produce websites that not only captivate

pjm:digital logo
pjm:digital
Independent·Leeds·2-10 Employees·Verified

With a quarter-century of expertise, pjm:digital is a Bradford-based digital agency specialising in eCommerce. As a renowned digital agency in West Yorkshire, our forte is creating effective eCommerce strategies, crafting engaging web designs, and implementing impactful digital marketing techniques. We're proud to be a certified Shopify Partner, bringing unique solutions tailored to UK businesses

The Marketing Optimist logo
The Marketing Optimist
Independent·Leeds·2-10 Employees·Verified

There are lots of reasons we keep clients for a long time, our current average is 5 years, mainly they stay because we keep solving tricky marketing problems from them, like increasing sales via their websites and social media...

5RV Digital logo
5RV Digital
Independent·Birmingham·201-500 Employees·Verified

5RV Digital is a full-service digital marketing firm that focuses on SEO strategies that bring lasting visibility and lead generation. We work with small to medium businesses across sectors to optimise online presence through structured SEO planning, content enhancement, and local visibility improvement. Our team understands what it takes to stand out in Birmingham's competitive digital space. As

Supplyant logo
Supplyant
Independent·Northampton·11-50 Employees·Verified

Supplyant, a Northampton-based eCommerce marketing agency in the UK, stands out for its dedication to resolving intricate eCommerce challenges for businesses, thereby facilitating swift expansion through bespoke marketing strategies and proficient website development. Their two-decade-long collaboration with Google, coupled with an emphasis on customer experience, guarantees that each client benefits from a customised approach, triggering significant business evolution.

DESIGN DPI logo
DESIGN DPI
Independent·Leeds·2-10 Employees·Verified

DESIGN DPI a multi-award-winning creative agency based on the outskirts of Doncaster in South Yorkshire, offers an all-encompassing spectrum of services. Specialising in animation, branding, logo creation, website development, and tailor-made software solutions, we also excel in digital marketing strategies such as SEO, email marketing, and social media management.

Coda logo
Coda
Independent·Bournemouth·11-50 Employees·Verified

Coda is a global marketing communications agency and consultancy serving the industrial B2B sector. With unrivalled heritage and sector experience, they offer a sought-after combination of deep scientific and technical sector knowledge, digital expertise and sharp creativity. They deliver the branding and pipeline growth that powers some of the worlds best industrial brands.

Herron logo
Herron
Independent·Sheffield·11-50 Employees·Verified

Herron is a Sheffield-based creative agency in the United Kingdom, renowned for empowering brands through genuine brand narratives, standout brand identities, compelling campaigns, and immersive digital experiences. Our unique methodology at Herron involves an in-depth partnership with clients, crafting bespoke strategies and solutions that engage target audiences, resulting in heightened interact

Newton Day logo
Newton Day
Independent·London·11-50 Employees·Verified

Newton Day is a family-owned marketing company that helps busy sales and marketing leaders get more done. We take on the big marketing jobs that need clear thinking and practical action, and we automate the smaller tasks that slow teams down. Based in London, with operations across the Midlands, we work with technology, professional services, and museums and heritage organisations. Our team is approachable, experienced, and focused on making marketing work.

Superrb logo
Superrb
Independent·Portsmouth·11-50 Employees·Verified

Superrb is a creative digital studio designing flagship websites and Shopify Plus ecommerce experiences for ambitious brands. We combine brand thinking, UX strategy and technical expertise in one senior in-house team, creating digital experiences that engage customers and support long-term growth. Part creative studio, part digital consultancy, we're built for brands that take design seriously.

Launch Digital logo
Launch Digital
Independent·Glasgow·2-10 Employees·Verified

Launch, a dynamic marketing agency, operates from strategic locations in Glasgow, London, and Ayrshire. What distinguishes Launch is its distinctive blend of imaginative creativity and digital expertise, generating progressive communication strategies whilst proudly maintaining its status as a family-owned enterprise offering a bespoke touch. Providing an extensive array of services, Launch specia

Synmek logo
Synmek
Independent·London·2-10 Employees·Verified

Synmek is a premier web design agency in London, renowned for delivering tailored web design and development solutions for businesses across various scales. Distinguished for its steadfast dedication to crafting SEO-enhanced, high-performing websites, Synmek not only captivates audiences, but also propels tangible business expansion. By merging proficiency, innovation and advanced technology, Synm

Mr Digital logo
Mr Digital
Independent·Brighton·11-50 Employees·Verified

Mr Digital, a Brighton-based digital marketing agency in the UK, prides itself on a data-driven approach that assures measurable results. Their unique selling proposition is a guarantee of success or services offered at no cost, backing their confidence in their data-reliant strategies to hit set goals. What distinguishes Mr Digital further is their unique Infinity-5 framework, consistently boosti

Scoot logo
Scoot
Independent·Glasgow·2-10 Employees·Verified

Scoot is a strategic digital marketing agency that prides itself on delivering bespoke solutions, specially designed to align with the unique goals of each of our clients. We offer a full suite of digital solutions designed to drive growth and transformation for your business. We create custom-built solutions that deliver results and drive value for our clients - no matter what that looks like. We

Invanity logo
Invanity
Independent·Oxford·11-50 Employees·Verified

Invanity is the revenue-first marketing agency. That means we refuse to separate marketing from commercial outcomes. Everything we do is built to create desire, capture demand, and bring the repeatable revenue that fuels growth. An ambitious, agile team, we back brands who want more momentum and more return and we go after it with them - curious, driven, and commercially awake.

Fishtank Agency logo
Fishtank Agency
Independent·Leeds·11-50 Employees·Verified

Fishtank, a digital and creative agency in Yorkshire, UK, excels in metamorphosing corporate communication via compelling storytelling. By presenting groundbreaking solutions, they routinely secure enduring ROI for their clientele. Fishtank's distinctive edge lies in their dedication to strategic thought, use of data for business problem-solving, and proficiency in brand strategy, creative leaders

REASON8 Marketing logo
REASON8 Marketing
Independent·Leicester·2-10 Employees·Verified

Founded in 2020 by Tom, an experienced Computer Science educator, REASON8 Marketing specialises in bolstering the digital footprint of businesses across all sectors and sizes. Our goal is to enhance online visibility, resulting in an upsurge of inquiries, amplified brand recognition, and a boost in sales. Boasting over eight years' expertise in website development and upkeep, Tom, in concert with

Reason8 logo
Reason8
Independent·Leicester·2-10 Employees·Verified

Reason8, a devoted family-led enterprise based in the UK, partners with its clientele to craft bespoke websites designed to cater to their specific requirements. The support doesn't halt there; Reason8 further broadens its suite of services to those ambitious clients who aim to bolster their online footprint. Leveraging SEO and website management techniques, we assist businesses in ascending to un

underscore logo
underscore
Independent·London·11-50 Employees·Verified

Established in 1999, Underscore is a cohesive collective of strategic thinkers, collaborating intensively with international partners and clients. We aim to craft engaging brand and digital strategies that captivate attention and achieve critical objectives. Our proficiency lies in attentive listening, strategic planning, and an unswerving focus on putting the "audience first" to ensure brands res

Appeal Digital logo
Appeal Digital
Independent·Bristol·11-50 Employees·Verified

As a premier web design and digital development agency located in Bristol, Appeal Digital excels in developing bespoke WordPress, WooCommerce, and software solutions. Our targeted digital experiences are designed to expedite goal achievement for teams. We stand out in the crowded B2B marketing landscape through our extensive proficiency in website performance, technical SEO, and digital design. Thi

RJM Digital logo
RJM Digital
Independent·London·2-10 Employees·Verified

RJM Digital, a London and Eastbourne-based digital marketing firm, excels in utilising AI to bolster digital marketing tactics. Offering an array of services such as SEO, web design, and bespoke Google Ads, RJM Digital aims to assist businesses in flourishing and magnetising their target audience. With a strong commitment to sustainability, RJM Digital also offers eco-friendly website solutions th

Levity Digital logo
Levity Digital
Independent·Belfast·2-10 Employees·Verified

Levity Digital is a specialist SEO agency serving UK and Irish businesses. We help SMEs grow organic search visibility and stay ahead in an era where AI is reshaping how people find businesses online. Based in Northern Ireland, we combine proven SEO fundamentals with forward-looking AI visibility strategies.

Unit Digital logo
Unit Digital
Independent·Sheffield·2-10 Employees·Verified

Unit Digital Ltd is a top-tier, Sheffield City Centre-based digital marketing agency offering comprehensive services. Distinguished by its distinctive fusion of creative agency sparkle and in-house team dedication, Unit Digital ensures a straightforward, results-oriented, and client-centric method. Comprising a close-knit group of seasoned industry professionals, they excel in engaging audiences a

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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.