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If you need SEO help in London, United Kingdom, the agencies listed here have been rated by real clients. Pick an Agency lists 53 SEO agencies in London, including top-rated Got Legs Digital and novi.digital, each with verified reviews and detailed performance ratings. With an average rating of 5★, 218 client reviews, budgets starting from $1k/month, you have real data to compare. Every profile includes ratings for performance, communication, value, and expertise — so you know what to expect. No paid placements.
53 agenciesAvg rating 5.0★218 verified reviews
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#1
Got Legs Digital is a growth marketing agency based in London. They specialize in assisting property, fintech, and startup companies in scaling their revenue through ethical marketing strategies.
#2
Founded in 2009 by CEO Aaron Crewe, Novi was built on the belief that digital marketing should prioritise long-term growth, supported by data-driven and psychology-focused strategies. Originally an SEO-focused agency, we’ve expanded our services to include PPC and paid social media to meet the evolving needs of our clients.
#3
Onelink is a marketing agency that specializes in building performance marketing strategies to help brands optimize their marketing operations and drive sustainable growth. They focus on eliminating inefficiencies and transforming media budgets into profits.
#4
Grow Metrix is a boutique digital marketing agency focused on transforming brands through tailored digital strategies. They partner with businesses from various sectors to deliver personalized marketing solutions that drive growth and enhance engagement.
#5
Bird have been helping customers achieve digital marketing success for over a decade. We apply our knowledge and expertise to deliver exceptional digital services. We stick to what we know and what we are good at, offering the best in Web Design, Pay Per Click and Search Engine Optimisation. Our aim is to bring our customer’s visions to life. We continually hone and refine our processes, investing a great deal of time and resource into research and development to ensure we are up-to-date with current design trends and digital marketing best practices. We have offices in London, New York and Dubai. Our teams work hard to achieve the highest levels of customer satisfaction and deliver a great return on investment for our clients. We truly believe our success is measured by our customer’s success! We also do our best to promote environmental awareness. All of our hosting infrastructure uses renewable energy sources, our offices are paperless and we review our suppliers every year so we can play our part to achieve a more sustainable future!Read more
#6
Founded in 2013, CreativeWeb has evolved from a small boutique web design studio into a thriving agency, designing & developing over 500 bespoke websites. They offer bespoke web solutions for businesses and enterprises worldwide.
#7
Bulldog Digital Media specializes in SEO and digital marketing, focusing on delivering big results without the need for large teams. They emphasize testing and learning from their own businesses to provide effective solutions for clients.
#8
Founded in 2017, Signify Digital started the way every good plan starts: with a chat over a drink. Combining our passions for digital marketing, innovation, and branding, we set about developing our service offering and began working with some fantastic clients. We are proud to have grown through recommendations and have developed strong relationships across a range of clients and sectors. As we grow, we never waver from our initial goal: to provide campaigns that deliver real results, with a personal approach to every project. Signify Digital is a highly personable online marketing agency with a focus on the healthcare sector. Based in Angel, London we provide a variety of digital marketing services for organisations both large and small including PPC, SEO and Paid Social Media. Our strength? Building meaningful relationships is our focus. We work closely with our clients to deliver a personal service with a highly individual approach. Unlike some other agencies, we don't automate everything and hold you to strict contract terms. We aim to build flexible and fluid relationships with clients and take the time to truly understand their business and company objectives.Read more
#9
Dating back to 2016, Millenio started as purely an SEO agency with the ambition to grow online businesses. Originating from link building we developed into a full digital marketing agency offering PPC and content creation. From local services, to begin with, we moved into large e-commerce businesses as time went on. Seeing the need for multiple channels we broadened our services as we knew even if we didn’t deliver all of them on a project, knowing how those other services could help is essential to maximising growth. Read more
#10
Startup Voyager is a UK-based growth agency that has helped several SaaS, Fintech and E-commerce companies supercharge their organic traffic growth and conversions. We formulate and execute a conversion-centric SEO strategy that outranks your competitors and drives traffic. We also help you convert your organic and paid traffic into more leads and revenue through UI/UX redesign, optimizing your conversion funnels, managing opt-ins and running hundreds of A/B tests.
#11
Smarketa is a digital marketing agency that helps eCommerce and service-based businesses grow through expertly executed SEO, PPC, and data-driven performance strategy. We build and manage complete digital campaigns focused on increasing traffic, generating leads, and growing revenue.Our agency is built on a dedicated team of specialists with deep expertise in SEO and PPC. We work closely with brands across the UK, Europe, the US, and Australia – tailoring every strategy to your goals, not a template.Read more
#12
Bold websites and results-driven marketing for brands of all sizes, from London and Lille to the world. We're a dynamic team that blends creativity with data and technology, shaping digital experiences that inspire conversation, strengthen brands, and deliver measurable business growth.Website Design & DevelopmentWe design intuitive, responsive sites built for user experience, accessibility and SEO. Deliverables include UX research, prototypes, CMS implementation, ecommerce and optimisation for speed and conversions.SEO, Paid Media & Paid SocialFrom technical SEO audits and content planning to PPC, paid social and conversion tracking, we build acquisition systems that compound over time and report transparently on results.Social, Content & CreativeConcept, content production and campaign execution for platforms where your audience actually is. We combine cultural curiosity with clear briefs to create shareable work.Digital Strategy & AnalyticsWe build analytics frameworks, track meaningful KPIs and optimise journeys through testing, turning data into clear guidance for smarter marketing decisions.Read more
#13
Meet Hemanth Balaji, London-based freelance SEO guru. I help clients worldwide skyrocket their organic visibility. From small retail businesses to big players like Sports Direct, New Look, and House of Fraser - I've got the portfolio to prove my SEO prowess. 10+ years of experience, both in start-ups and large organizations, and a focus on driving commercial success make me your go-to guy for all things SEO.
#14
Growth Division finds scalable marketing channels for startups. We do this by identifying the highest impact channels to market, building your growth infrastructure and putting together a team of specialist experts to execute growth experiments in those channels. This unique growth process underpins our mission: to discover how to build high-growth companies we can be proud of. Define. Validate. Grow. We review your current marketing strategy and channels-to-market. Then build hypotheses & action plans on what channels to rigorously test. We use expert marketers, each specialised in their own field, to test & validate each channel. Finding which channel you should invest in. We align ourselves to your growth targets, prove each channel's ROI and leave you with validated routes to market ready to scale. Why Growth Division? Rigorous Approach to Growth We see so many startups trying a bit of this and a bit of that, some Facebook ads here, some email marketing there. The problem is there is a lack of methodology and a lack of rigour. Our approach is more scientific and thought-through Unbiased and Flexible By using freelancers on monthly contracts we can swap in and swap out the skills we need to help you grow. If you work with a traditional agency they have in-house resources they need to utilise, rather than having their Facebook ad specialist sitting around they’d get them working on your project. Our agile structure means we don’t have biases when recommending and working on channels. World Class Experts By using channel-specific experts who work on that channel day-in-day-out you can rule out the person in charge of the channel as a contributing factor as to whether that channel is successful or not. We offer what a generalist marketer cannot - an expert at everything. Read more
#15
Rudo is a London-based web design and development agency specialising in creating inspiring, engaging, and conversion-focused websites for B2B clients. Our team of experienced marketers, designers, and developers is dedicated to crafting high-quality, impactful, and product-oriented websites tailored to the unique needs of our clients.
#16
e intelligence is a leading Digital Marketing and Web Development Agency that helps businesses build their brands across the globe. Our tailor-made digital solutions help companies increase revenue through our Digital Marketing, SEO, PPC and Website Development Services.Whether you’re small or large, we have just the right solution for your growth needs. Our ROI focused approach and a passionate team help us deliver our services that help our clients grow. A combination of intelligence and diligence is what sets us apart from the competition, worldwide. Leading brands rely on our expertise to help them growSo whatever your digital pursuit may be, we are all ears! Visit www.eintelligenceweb.comRead more
#17
Aspectus delivers on brand, marketing, and communication goals, leveraging intelligence and global expertise to achieve measurable success for businesses across various sectors.
#18
We help small businesses and enterprise brands grow their digital footprint with award-winning digital marketing services. As a distributed team of freelancers with combined decades of experience across a range of industries and markets, we can offer our services at a fraction of the cost of full time hires or other agencies. (And we’re just, if not more, effective!)
#19
Word Heroes | Fully Managed Content Creation That Delivers ResultsAt Word Heroes, we help brands stand out online through fully managed, results-driven content creation. From engaging blog articles to scroll-stopping social media videos, we deliver premium content designed to drive traffic, build trust, and generate leads. Our editors, and creators work closely with each client to craft tailored content that reflects your brand voice and resonates with your audience. With flexible packages, hands-free management, and a proven track record, we make it easy for businesses to scale their content—without sacrificing quality. What We Deliver: ✅ Blog Articles – Well-researched, SEO-optimised content that builds authority and fuels organic growth.✅ Branded Videos – High-quality, brand-aligned videos that inform, entertain, and convert.✅ User-Generated Content (UGC) – Authentic, creator-driven videos that boost social proof and engagement.✅ Talking Head Videos – Personable, professional videos that put your message front and center.✅ Shorts & Voiceovers – Attention-grabbing short-form content for reels, TikTok, YouTube Shorts, and more.✅ Stories & Carousels – Visual storytelling designed for maximum engagement across Instagram, LinkedIn, and Facebook.✅ Social Media Posts – Thumb-stopping content designed to build community and amplify your reach. Why Clients Choose Word Heroes: 🌎 Global Reach, Local Expertise – UK, US, French, German, Spanish, Italian, Thai — local content creators who truly understand your voice and your market.📈 Results-Focused – Every piece of content is designed to drive engagement, authority, and conversions.💡 Strategic + Creative – We combine storytelling, SEO, and data-driven strategy for maximum impact.⏱️ Fully Managed – From planning to publishing, we handle it all—freeing you up to focus on growth.📊 Proven Performance – 10K+ blog articles, 25K+ videos, 300K+ social posts delivered worldwide.Read more
#20
MADX Digital is a London-based agency specializing in SEO, content marketing, and generative AI solutions for businesses seeking to enhance their digital presence. With a team of 11-50 professionals established in 2020, they deliver data-driven strategies tailored to client needs.
#21
ClickSlice is an SEO agency in London that offers powerful SEO services to help businesses increase their online visibility and generate more revenue from their website. Our SEO process is refined and tested to ensure the highest level of success across all industries. Our process involves reverse-engineering what the top ranking sites on page 1 are doing and mapping all these data points into visuals charts. We then work towards tweaking our clients' site to suit these same averages. This results in us following a proven strategy which we know works! If you would like to increase the online visibility of your website and generate more sales/enquiries, please get in touch today and one of our team members will be more than happy to help. Read more
#22
We are problem solvers. Our imagination drives us to find creative ways to deliver the performance that gives your digital marketing campaigns the competitive edge. Proud to have a roster of long-standing clients, we work as partners to our clients: sharing our values, flexing to meet their needs and quickly responding to challenges. Some of the brands we partner with include Mazda, Octopus Investments, Knight Frank, Jigsaw, Biona. Our services: Organic marketing (SEO, content marketing, organic social, digital PR) Paid media (search marketing, paid social, YouTube, programmatic) Web performance (UX/UI, CRO, landing page design and optimisation) Why Passion Digital? We give your brand the competitive edge Everyone here is a strategist. We combine insight and data with channel expertise to find new ways to gain ground in your industry and stand out from your competition. We are big on collaboration Your challenges are our challenges. We work alongside you as true partners to find new ways to gain ground in your industry and stand out from your competition. We are flexible Independent and nimble, we have the skills and the freedom to adapt to your business needs, fast. We can adjust strategies and change tactics to find new solutions that will work for you. Imagine Better Delivering our clients the best ROI is what drives us. We Imagine Better across everything we do: performance for our clients, growth as an agency and our impact on society and the environment. We strive to work with brands that share our values of being connected, having a growth mindset and wanting to make a difference. Let's Imagine Better together. Contact us at enquries@passiondigital.co.uk to discuss your project. Read more
#23
Based in London, Passionates delivers comprehensive digital services including AI development, branding, web design, and video production. The 33-strong client base rates them 5.0, reflecting their expertise across SEO, UX/UI, ecommerce, and generative AI solutions.
#24
Burst is a leading digital agency with Dutch roots, experienced in blending business, data, creativity and technology. Like our clients, we have a holistic view, we adapt quickly to new challenges and value cultural differences. The world is changing rapidly and your customers lead the way. They expect you to keep up and create seamless journeys. In these challenging times, Burst is your business partner. We create long-lasting value for our clients and your customers.
#25
We help businesses in the financial, legal, automotive, and e-learning sector generate leads profitably at high volume. ⭐️ Specialists in paid media, we’ve managed over £50,000,000 in advertising spend across Facebook, Google, and Native, with ROI being the number 1 priority. 💰Fixated on making money for our clients, not from them… ✅ We don’t believe in smoke and mirror tactics, or high client turnover. We’re looking for long-term partnerships and honest, open dialogue. Get in touch for a free consultation, let's see if we're a good fit! 🤝 Read more
#26
We are ROAST. ROAS & Growth Agency, driving ROAS in the new era of discoverability. ROAST are the discovery explorers – helping brands get found everywhere discovery happens. We specialise in Media Strategy & Planning, Data & Measurement, Organic Performance, Paid Search & Social, Media Activation and Digital & Traditional Media. ROAST work in collaboration with our sister agency Kitty. UK's Best Small Companies to Work For 2018-2024 | Most Effective Agency 2020 | Best Digital Agency 2019 Our goal is simple, to increase the return on your advertising spend (ROAS).We do this by simplifying the problem and moving forward with the right performance marketing tactics targeting the correct audience, at the right time. We extract solutions from data science along with experimentation and apply it where it will be most valuable. By using digital data at scale, combined with the very best industry tools and tech, we can build highly successful Performance Marketing campaigns for you, as well as new ways you can use that data.How we work with you: Being independent allows us to be flexible with our clients. Digital Marketing moves quickly and we can change our strategy and tactics just as quickly.We make sure we build you the correct team, formed around your business. This team will be selected as the right team to drive success for YOUR business.We never build our teams around certain departments, we make them client centric. This way your challenge and goal are always the focus.We form partnerships built on TRUST.Word of mouth and strong client relationships have been the driving force of our agency growth from day one. With trust laying heavily at the heart of all of our partnerships, we are fortunate enough to see our clients return to and refer us, time and again.With decades of industry experience, we know which brands work best with us, if we don't think we are right for you, we will let you know. We always strive to build meaningful and genuine connections.Read more
#27
Ignite SEO London is an award leading SEO agency in London, we know the exact strategies that deliver results. At Ignite SEO, we take great pride in our dedicated team, our efficient processes, and our unmatched customer service. We consider every client to be a vital part of our business, and we collaborate closely with them to ensure they achieve the results they desire. As the founder of Ignite SEO, Adam Collins envisages a world in which businesses, regardless of their size, utilise the full potential of SEO to thrive online. His unwavering commitment to excellence, combined with his dedication to client success, propels our mission to spark growth and enhance visibility for businesses.Read more
#28
Greenlight is a multiple award-winning digital and commerce agency that designs, builds, consults, trains and implements transformational strategies across: paid search & Shopping, programmatic display, SEO, content marketing, digital PR, creative, site design & build, analytics, eCommerce systems integration, conversion rate optimisation, user experience, affiliate marketing, and data & audience insights. With the consistent objective of achieving dramatic growth for its clients, Greenlight delivers innovative work for brands such as ghd, Dixons Carphone, Superdry, Furniture Village, and eBay in over 30 countries.Read more
#29
Specializing in SEO services, Paper Gecko helps London-based businesses improve their search visibility and organic reach. With a perfect rating, this digital marketing agency delivers results-driven strategies tailored to client needs.
#30
EUROPEAN PERFORMANCE MARKETING We help companies and E-commerce websites to acquire new clients in Europe with multilingual Digital Ads and international SEO strategies. Based in London, Verona, and Lille, we specialize in multilingual digital strategies, offering tailored solutions to maximize online visibility and engagement by considering the cultural specifics of various markets. Are you looking for a Performance Marketing Agency?With effective multilingual strategies in over 52 countries, we create unique campaigns for businesses of all shapes and sizes and your business could be next…! Start your multilingual SEM journey with Mintense. SERVICES: International SEO, Multilingual Googla Ads campaigns and Social Ads. FIELDS: Machinery, Industrial B2B production, e-commerce, industrial machine manufacturing.Read more
53 agencies
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04 · FAQ
We currently list 53 SEO agencies in London, United Kingdom. Browse their profiles and read verified reviews to find the right partner.
Compare agencies based on verified client reviews, campaign results, industry expertise, and pricing. Look for agencies in London with experience in SEO and a track record of delivering strong ROI.
Pricing varies by scope and agency size. Most SEO agencies charge a management fee of 10–20% of ad spend or a flat monthly retainer. Request quotes from multiple agencies in London to compare.
Yes. Many SEO agencies in London work with remote clients. While a local agency can offer in-person meetings, remote collaboration is standard in the industry and gives you access to a wider talent pool.
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