826 agencies indexed·Latest entry: 3 June 2026
Service · 481 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
  • 481 UK agencies offering seo
  • Across 35 UK locations
  • Reviewed 17 May 2026
Showing 385-408 of 481 seo agenciesView in full archive
Builtvisible logo
Builtvisible
Specialist·London·51-200 Employees

Builtvisible, a leading digital marketing firm located in the heart of London, prides itself on forging significant connections between individuals, communities, and brands. By leveraging strategic data, SEO, and content, we offer dynamic organic strategies that make an immediate impact. Renowned for executing campaigns with a high return on investment focus, Builtvisible is also instrumental in d

Modo25 logo
Modo25
Independent·Leeds·11-50 Employees

As a premier digital marketing agency, Modo25, with its headquarters in Leeds and London, sets itself apart through its extensive in-house offerings and the ground-breaking BOSCO™ platform. This pioneering platform enables clients to fine-tune their digital marketing initiatives. Modo25's distinct methodology revolutionises the digital marketing landscape, providing bespoke solutions that amplify

Click Consult logo
Click Consult
Network·Cheshire·51-200 Employees

Click Consult, a UK-based digital marketing agency, is celebrated for its proficiency in both organic search (SEO) and paid search (PPC) campaigns. Differentiating itself with a multiple award-winning method, Click Consult leverages profound industry insights and extensive cross-channel expertise to accelerate expansion for aspiring brands. Their bespoke strategies and pioneering solutions consist

Bespoke logo
Bespoke
Independent·Preston·11-50 Employees

Specialising in bespoke web design, Bespoke Digital Agency is a leading digital agency rooted in Lancashire, with additional offices in London and Manchester. Distinguishing itself with a wealth of experience, Bespoke has successfully executed over 250 custom web design projects, prioritising speed, flexibility, and performance. Each website is meticulously crafted to resonate with the client's un

Incisive Edge logo
Incisive Edge
Independent·London·11-50 Employees

Based in London, Incisive Edge is a growth-focused marketing agency specialising in B2B technology and SaaS. They provide a strategic blend of inbound marketing, content creation, marketing automation, and demand generation to help clients-from startups to global enterprises-accelerate pipeline and ROI. By focusing on measurable outcomes and data-driven insights, Incisive Edge empowers organisatio

Technique Web logo
Technique Web
Independent·Oxford·2-10 Employees

Technique Web, nestled in the heart of Banbury, Oxfordshire, is a distinguished web design agency renowned for its unique focus on transforming website visitors into leads or business transactions. This core objective ensures not only visually stunning websites for our clients but also ones that deliver measurable outcomes. Our commitment to keeping pace with advancing website technologies and eme

The Game Marketer logo
The Game Marketer
Specialist·London·11-50 Employees

The Game Marketer, an expert marketing agency rooted in Wimbledon, London, stands out with its comprehensive knowledge of the gaming sector. Their unique selling point is a team of passionate gaming enthusiasts turned marketers, guaranteeing that each promotional campaign strongly echoes within the gaming community. Excelling in video game marketing, advertising, and creative services, they levera

PHD logo
PHD
Network·London·1000+ Employees

PHD Media, a London-based agency, specialises in strategic communications and media planning services. They excel in media purchasing, digital marketing, and data analytics, all geared towards helping brands connect efficiently with their desired audiences. PHD Media's unique selling point is their innovative use of data-driven insights to craft powerful campaigns. They predominantly serve sectors

Manning Gottlieb OMD logo
Manning Gottlieb OMD
Network·London·201-500 Employees

Based in London, MG OMD is a distinguished agency renowned for its innovative and integrated media campaigns, specifically designed to yield real impact across all communication facets. The agency specialises in planning and securing advertising spaces, bolstered by unrivaled expertise in sculpting media strategies that resonate with diverse audiences. Setting itself apart, MG OMD boasts an award-

Urban Element logo
Urban Element
Independent·Oxford·2-10 Employees

Urban Element is a leading digital marketing agency rooted in Oxfordshire. It distinguishes itself through a steadfast commitment to comprehend client businesses and craft bespoke digital strategies. By fusing creativity, proficiency, and innovation, they escalate traffic, generate leads, and boost sales. Boasting two decades of industry experience, Urban Element has forged robust alliances with p

Sister London logo
Sister London
Independent·London·11-50 Employees

Sister London is a London-based comprehensive marketing agency, renowned for its unique fusion of strategic insight and engaging content to craft campaigns that defy conventions. With a specialisation in digital marketing, PR, events, and design, Sister London injects a creative and innovative approach into the spheres of destination, food, and lifestyle brands on a worldwide scale.

Empower Agency logo
Empower Agency
Independent·London·11-50 Employees

Empower Agency, a London-based strategic digital partner, excels in fostering causes that generate positive influence. Recognised as a certified B Corp, Empower distinguishes itself by amalgamating research, insight, and strategy to devise innovative and persuasive digital campaigns that champion significant transformation. They concentrate on empowering teams and captivating audiences by offering

OnBrand logo
OnBrand
Independent·London·11-50 Employees

Based in Hertfordshire, OnBrand is a comprehensive marketing agency with a specialism in business expansion. What distinguishes OnBrand is its unwavering commitment to aid companies at critical junctures, whether it's facilitating small businesses' shift to e-commerce or empowering larger firms to improve their customer journey with digital and audio marketing strategies. Boasting a wide range of

Croud logo
Croud
Network·London·201-500 Employees

Centrally located in London, Croud is a comprehensive media agency that also operates from additional bases in Shrewsbury, New York, Atlanta, and Dubai. Croud distinguishes itself with a robust commitment to performance-oriented expansion and innovation, capitalising on a profound legacy in analytics, strategic planning, and strategy to ensure enduring success for aspirational worldwide brands. Th

Loop Digital logo
Loop Digital
Independent·Northampton·11-50 Employees

Loop Digital, a Northampton-based digital marketing firm, excels in providing bespoke digital marketing strategies. Our speciality lies in empowering small to medium enterprises (SMEs) with measurable growth and enduring success through our array of services, including SEO, web design, and conversion rate optimisation. Our distinctive trait is our dedication to building enduring client relationshi

Assisted logo
Assisted
Independent·Leicester·11-50 Employees

Assisted, a renowned digital marketing agency located in Leicester, has been bestowed with multiple accolades and boasts branch offices in Leamington Spa and Hemel Hempstead. Assisted prides itself on its bespoke, data-informed, and ROI-centric strategies that span across SEO, PPC, social media management, content development, and website design. These strategies ensure that our clients not only a

Figment Agency logo
Figment Agency
Independent·London·11-50 Employees

Figment Agency, a celebrated SEO agency residing in London, specialises in crafting streamlined and potent SEO strategies. With a distinctive focus on the healthcare and professional services sectors, Figment is dedicated to helping businesses attain consistent growth by linking them with their perfect clients via online channels. Their bespoke strategy, which incorporates their trademarked Search

Elixirr Digital logo
Elixirr Digital
Independent·Essex·51-200 Employees

As a globally recognised, multi-award-winning digital marketing and IT agency, Elixirr Digital, part of the overarching Elixirr Group, uniquely merges iOLAP's expert services to deliver bespoke, data-driven digital marketing solutions. Our commitment to driving quantifiable results for every client sets us apart. Specialising in comprehensive web design and development, we pride ourselves on our i

Candy Marketing logo
Candy Marketing
Independent·Liverpool·2-10 Employees

Candy Marketing, a premier digital marketing firm situated in the UK, operates out of Manchester and Liverpool. The agency sets itself apart with its celebrated digital tactics that augment online visibility via intelligent design, development, and sector-specific knowledge. Excelling in crafting immersive customer experiences, Candy Marketing delivers superior UX/UI design, smooth website develop

Mediahub logo
Mediahub
Network·London·1000+ Employees

Mediahub, a London-based agency, specialises in strategic media planning and buying, merging human insight with data-led strategies. Their core services encompass the creation of media strategies, cross-channel media procurement, and bespoke advertising solutions, customised to align with each client's unique requirements. What sets Mediahub apart is their emphasis on integrating human expertise w

Caffeine Marketing logo
Caffeine Marketing
Independent·Cardiff·2-10 Employees

Caffeine Marketing, a renowned full-service digital marketing firm based in Cardiff, provides comprehensive UK-wide coverage. Our unique selling proposition is our practical approach to facilitating remarkable online triumphs through bespoke digital marketing strategies, tailored to every client's distinct requirements. Since our inception in 2011, we've maintained a consistent performance record.

M3.Agency logo
M3.Agency
Independent·Birmingham·11-50 Employees

M3.agency is a renowned marketing agency headquartered in Birmingham, further known for its strategic offices located in London and Albrighton. Recognised for its pioneering marketing strategies, M3.agency recently made waves with the successful roll-out of their cutting-edge MG3 Hybrid+ campaign, embodying the spirit of contemporary marketing approaches. Specialising in the creation of bespoke, e

Ink Digital logo
Ink Digital
Independent·London·2-10 Employees

Ink Digital, a versatile SEO and digital marketing agency, is located in the heart of London. Uniquely, we provide customised strategies for every client, guaranteeing optimal return on investment via personalised SEO, PPC, web design, digital PR campaigns, among others. Our strength lies in our commitment to incorporating data-driven insights and current industry trends, ensuring we deliver excep

Fit Design logo
Fit Design
Independent·London·2-10 Employees

Our London-based, award-winning agency is a leading expert in bespoke web design. We specialise in creating innovative, mobile-optimised websites, setting ourselves apart with our commitment to engaging user experiences and customised eCommerce solutions. We utilise Swiss-style design to cater to our clients' unique requirements. Well-regarded for a wide array of digital marketing services, we shi

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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.