SEO agencies in London.
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. This page shows every agency on AgencyIndex offering seo in London.

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

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.

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

Rise - Growth Marketing Collective, a distinctive agency based in London, specialises in presenting a flexible and transparent substitute to conventional growth marketing agencies. Stand-out attributes include Rise's holistic strategy that merges the strategic acumen of a consultancy with the practical efficiency of an outsourced marketing team. This approach delivers customised, effective growth

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

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

Elevate Your Search Position is a Bromley-based SEO specialist firm, straddling the London-Kent boundary. What sets our agency apart is our promise to secure Page 1 Google rankings for your business within 90 days, utilising a methodically designed, research-led strategy to build customised SEO campaigns that cater to each client's distinct requirements. Our demonstrated history of propelling sign

In Digital, a London-based performance marketing agency, excels in intertwining data science with creative strategies. This unique approach allows us to seamlessly enhance our clients' teams as an in-house extension, promoting optimal growth. Offering bespoke access to our principal services such as digital planning, performance analytics, and e-commerce solutions, we consistently deliver impressi

SAGE Marketing provides global B2B marketing and brand management services to global startup companies. We are your CMO as a Service. From converting customer needs into business opportunities to engaging people on-line, off-line, and face-to-face, SAGE tailors the right marketing mix to your stage, budget, and needs. We will scale your brand and business to the next level. SAGE is home to experienced team of marketers, strategists, creatives, and tech enthusiasts who are leading startups to business success! Additionally, we are a HubSpot Diamond Partner, we help many startup and established companies to maximize their marketing & sales impact with HubSpot CRM.

Re:signal is a premier digital marketing agency headquartered in the UK, renowned for its expertise in ecommerce SEO. With a history of driving marked organic revenue growth for global brands, such as ASICS and FatFace, Re:signal firmly stands as a trailblazer in the field. Their entirely remote team crafts bespoke SEO strategies for clients across the UK, US, and Europe, cementing their leadershi

GA Agency is an award-winning digital marketing agency helping brands all over the world grow their business and revenue in the online space. Our strategy and data-driven approach allow us to build an effective tailor-made digital marketing strategy to take your business to the next level.

Distinctly, a leading digital marketing agency based in Old Street, London, boasting more than a decade of industry experience. This agency sets itself apart by integrating creative ingenuity with data-driven analysis, fuelling significant growth for brands with ambition.

As a leading SEO specialist in London, Rapid SEO London offers cost-effective, high-impact digital marketing solutions starting at just £495 + VAT monthly. Our distinctiveness lies in our ability to deliver quick, tangible results through our advanced coding methods and adaptable strategies - no long-term contracts. We aim to boost our clients' online presence optimally. We take immense pride in o

Passion Digital, a London-based digital marketing agency, excels in blending creativity with performance to create engaging campaigns that convert potential audiences into profitable leads and revenue. This agency transcends traditional boundaries by integrating data-driven strategies with content planning, thus providing customised solutions across a spectrum of services, from SEO to Amazon Adver

Situated in the heart of London, KOTA is a distinguished creative web design and branding agency. Our steadfast dedication to delivering visually impressive digital experiences sets us apart. We seamlessly integrate aesthetic appeal with a focus on return on investment, ensuring each project we undertake not only enthralls but also generates revenue. Specialising in strategic brand development and

First Place SEO helps local businesses in London grow fast. We offer SEO services, Google Ads management, and website help to get you more customers. Our team knows how to get your business on the first page of Google in London. We use proven methods so you get more calls, leads, and sales. If you want to rank higher and beat your competition in London, First Place SEO is ready to help. Get found

Deep and Unique Services at ELITEHUB Luxury Digital Agency ELITEHUB is a premier luxury digital agency specializing in a wide range of services tailored for high-end brands and affluent individuals. Our offerings encompass various facets of digital marketing and personal services, ensuring that our clients receive comprehensive support in achieving their goals.

The digital results agency with a complete focus on making your online activity work harder than ever before. If the name rings a bell, that's because we're the sibling of creative agency J2. We were born in a world of big ideas but have evolved an unshakeable focus on digital results. From growing brands to driving sales, every campaign is geared to improve the bottom line. We optimise PPC, Paid

Mintense UK is a London-based performance marketing agency with over a decade of experience in multilingual SEO, Google Ads, PPC and social media advertising. Their native-speaker teams cover 16+ languages, delivering tailored digital campaigns that drive visibility, leads and international growth across the UK, Europe and the US.

The SEO Works is a highly respected authority in search marketing, GEO, AI search, web development, and pay-per-click social services for distinguished brands and thriving SMEs in the UK. With a fifteen-year long track record, this agency remains committed to a single objective: boosting businesses' online customer base.

OmniFound is a forward-thinking SEO agency built for the evolving world of digital discovery. Based in London, we specialise in helping brands grow across traditional search, AI-driven engines, and social platforms. Our services cover traditional SEO, AI SEO (GEO), Local SEO and SEO driven web design

Black Stone Media is a UK-registered digital media agency that specializes in organic, asset-based marketing strategies, search engine optimization (SEO), localized copywriting, and social media growth. The firm is structured as an organic-first agency, meaning they focus on building long-term search authority and community presence rather than managing paid advertising campaigns or ad spend budgets. They act as a strategic and creative engine handling target market research, copywriting, app store optimization, social media strategy, and localized community outreach materials while collaborating with their clients' internal technical teams to deploy the work.

Crimson Social is a property-focused marketing agency helping estate agents, developers and property businesses grow through social media, paid advertising and digital marketing.

Fourmeta Agency is an award-winning digital agency specializing in Shopify, ecommerce development, UX/UI design, branding, SaaS, AI product development, MVP development, mobile app development, and digital growth for ambitious brands worldwide.
AgencyIndex tracks 165 seo agencies in London. The list above is filtered to that intersection and ordered with verified and featured listings first.
For the wider editor's view on seo agencies in the UK, see the seo service brief. For context on London's marketing cluster, see the London location brief. The pricing, timeline and red-flag notes below apply to seo as a discipline; they do not change materially in London.
Boutique / freelance £500-3,000 · Mid-market £1,500-7,500 · Network £7,500-20,000+. One-off audits £1,500-10,000.
1-3mo technical foundations · 3-6mo ranking and traffic gains · 6-12mo+ revenue compounding.
- · 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
Other services in London.
What brands ask about seo agencies.
The 5 questions our editors get most often, answered honestly. These apply to seo as a discipline regardless of city.