Explore Top SEO Companies in London
Use the advanced filter to find companies near you or refine the results Last updated in: September, 2026

London, United Kingdom Head office in: United Kingdom
Fox Agency is an integrated marketing agency in the B2B sector, with offices in London and Leeds. Fox combines technology, data, creativity and nous t...
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ROI Focused Digital Marketing Agency Do you need a solution partner for PPC & SEO or Paid Social Media? We are only interested in strong and long...
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London, United Kingdom Head office in: United Kingdom
Fireworx is a creative, marketing and digital agency that’s here for entrepreneurs, the risk takers, the crazy ones, those who want to stand out from...
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We are Kingpin We are a specialist, multi-award-winning B2B technology marketing agency based in Central London and San Francisco. Through smart data...
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Brandlective Communications is a Digital Marketing agency who assist businesses and professionals get recognition online. We are excited about online...
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London, United Kingdom Head office in: United Kingdom
The Home Agency is responsible for the marketing communications of many a household name. Today there are 200 of them, spread across Leeds, London, an...
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We help fans around the world explore their love of music. We help lawyers in London beat news outlets to the punch. We help consultants in New York f...

London, United Kingdom Head office in: Ireland
Sing! is an award winning digital performance marketing agency. We help clients do digital better. We have over 50 years digital marketing experience...
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London, United Kingdom Head office in: United Kingdom
We are CTI Digital. Our award-winning team of 150 Digital Strategists, Designers, Marketers, and Developers put digital at the heart of your organisat...
Creative Digital specializes in helping small and medium-sized businesses grow online. We fuse our creative passion and digital expertise to provide o...
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We are experts in crafting creative campaigns with multiple touch points to tell your story in an authentic way that brings your brand values and prop...
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Make is a London-based digital agency, we're a young diverse team of digital experts. With offices in the heart of London’s creative community, we’ve...
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At Manning Gottlieb OMD we believe the creative use of media is essential in helping our clients. Creativity builds brands, demands attention, capture...
Consider Creative is a creative agency. Marketing and inspiring communication is what we do. We are a results-driven, creative team, delivering brilli...
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Infectious Media is an international programmatic agency that partners with global brands to deliver effective and efficient media campaigns. Founded...
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We are a Google award winning digital marketing agency working with mid tier business or start ups who are looking to grow fast. Our speciality is in...
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atom stands for ‘acquisition through online marketing’ and that’s exactly what we do – create and manage innovative online marketing campaigns to help...
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We are a full service digital agency based in Richmond, London, with a focus on ecommerce. We are a Magento partner and love building ecommerce websit...
We're a digital marketing agency, based out of Waterloo in London. We love the fact we’re independent and we’re obsessed with delivering our clients v...
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London, United Kingdom Head office in: United Kingdom
We deliver an exciting brand experience in a clear and concise way, using defined processes and a talented and friendly team; simple as that. Our 30 y...
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Zeo Agency is an international digital marketing agency, and the organizer of Digitalzone, the largest digital marketing conference in Eastern Europe....
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We're a full-Service Ecommerce Agency focused on giving our customers data-driven solution to their online businesses. We have worked with e-commerce...
We create brand clarity from market complexity, helping clients to identify, articulate and tell their stories in the most creatively compelling way t...
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London, United Kingdom Head office in: United Kingdom
A&P is a multi-disciplined, award winning marketing communications agency who work with some of the UK's best known brands in both the private and...
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Filter SEO Companies in Cities near London
Find the right tech company near you or from a specific city. Some of the best companies might be located in smaller cities.
Find more SEO companies around the world
TechBehemoths is the world's most advanced and user-friendly platform to match IT Companies with real clients without hustle.
What is SEO and what are its benefits for your projects?
SEO (search engine optimization) is the process of optimizing your website in order to get a higher ranking in organic search results and consequently more organic traffic.
SEO is a long term strategy and requires advanced knowledge of ranking algorithms and some technical background, to be able to optimize websites for popular search engines like Google, Bing, Yahoo, DuckDuckGo, etc.
According to the latest survey on digital marketing conducted by TechBehemoths, about 70% of IT companies revealed that SEO is their main channel for leads, meaning that it’s a vital marketing activity that generates traffic, prospects and sales.
Some of the benefits of SEO are:
- Free organic traffic
- Brand awareness
- Better control over brand traffic
- A vital marketing channel for leads & sales
- Supports other channels: social media, paid ads, direct traffic, etc.
- Optimizes your advertising budget
- Usually, has a higher conversion rate
- Gives you a competitive advantage
- Is a good long term investment, generating decent results
It’s not easy to find a reputable SEO company, as some SEO agencies used to provide questionable/suspicious services in the past, and lots of businesses became reluctant to pay for search engine optimization services.
When looking for and choosing an SEO service provider, you should consider a lot of aspects. Ideally, you should do some basic research, set up clear goals and ask yourself a few questions before hiring a company.
Here are some things to look for when searching for SEO agencies to partner with:
- Expertise
- Portfolio
- Years in business
- Case studies
- Price (expect to pay at least $30 / hour if you’re hiring an agency)
- Approach and particularities (technical SEO, link building, content optimization, etc.)
- Communication and reporting
TechBehemoths lists more than 30,400 SEO companies from all over the world. Check out their profiles and feel free to get in touch with them.
To ease the selection process, we’ve created a powerful filter which you can use to narrow down the results based on your requirements and shortlist the companies.
SEO and search in the AI era
SEO has dramatically changed since the launch of chatbots like ChatGPT, Perplexity, Claude, etc. (post end of 2022), and disrupted the whole search industry for both business owners/publishers and users who search on the web.
User interaction has completely changed, with more users opting for natural language questions instead of search keywords.
While the traditional 10 blue links in Google or Bing are not gone, their importance has shifted , as traditional search engines now integrate summarized answers via AI (Eg. Google AI Overviews, Bing Copilot Search).
Traditional search engines are shifting to chatbot-like interfaces, where users discuss with AI and get relevant and customized answers, just like in ChatGPT or Claude.
This is good and bad news for both business owners and users.
On the positive side, AI chatbots offer endless possibilities for content creation, automation, customization, app/software development, etc. and the entry point is really low. But there are downsides too:
There have been many concerns that AI systems are using copyrighted content to train themselves and generate answers without giving credit or sending referral traffic to the original content creators.
Users can experience AI hallucinations (made up, false information), no real-time data, bias and might diminish critical thinking and evaluation of multiple sources to create an opinion or an action.
SEO is still the foundation
Being present and visible in both search engines and chatbots is critical these days. SEO is the foundation for that, as chatbots operate in a similar way: they use their large language models (LLMs) to answer questions and 3rd party sources (Bing index, web APIs, etc.) to provide real time or recent info and citations/sources within the answers.
If your website is present in Google or Bing index and ranks well in their organic search results, it’s most likely that it will be often cited in chatbots (although it’s not directly correlated).
This is why a new type of SEO has emerged: AEO (Answer Engine Optimization) or GEO (Generative Engine Optimization) which is basically SEO for AI.
To make sure that your website ranks well and is present in traditional search index and AI based search engines, you still need to have a good technical SEO foundation. Here are some fundamental aspects that you need to consider:
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Robots.txt - should be properly configured so that search engines can access your website
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Crawlability - make sure you have a sitemap and meta robots tags on pages that you want or don’t want to appear in search results
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Duplicate content - implement canonical tags, so that search engines know what are the primary/preferred pages to be indexed and ranked/cited.
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Site speed - is essential for users and search engines. Your web pages should load fast on all kinds of devices.
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Mobile first - smartphones are the primary devices for most users, so having a mobile-first website is highly recommended. For more advanced sites with high traffic volumes: PWA and mobile apps could work too.
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Schema markup - chatbots and search engines rely on structured data to better understand your pages and the type of content you are serving to users. Common schema types can be: local business, event, product, review, rating, etc.
There are other parts of SEO that should be also considered like content creation and backlink/citation building.
Content creation is a significant part of SEO and many companies choose to either outsource or automate the process by using AI tools. It’s important to note that search engines don’t penalize content created by AI, however the quality of content is vital and often content created at scale with AI, doesn’t present much value.
This is why SEO agencies can have a smart/modern approach where they use humans/professionals and AI to help them create valuable content, not just generate content that has no value.
Before you hire an SEO agency it’s important to ask and know exactly how they use AI and what’s their workflow.
Some agencies offer link building/citation building services. Our advice is to avoid bulk/automated link submission services and opt for customized and high quality link building services. Focus on quality rather than quantity.
Managing technical SEO can be overwhelming, hence you can opt for reliable SEO agencies that can make sure your website is up and ranking in search engines, while you can focus on achieving the desired business results.
How to shortlist SEO agencies for your projects?
Finding the right SEO agency for your projects might be a difficult task. That’s why, TechBehemoths offers a few tools to facilitate this process:
Search
Simply search for SEO related services and include the desired location (city or country) and browse the listings. Look at companies with awards, positive reviews, great/excellent profile strength and strong portfolios.
Feel free to get in touch with the right companies directly from listings.

Advanced filter
Use the advanced filter to narrow down your search results by lots of handy criteria like: location, technologies and tools, team size, hourly rate, review count and rating, and many more.
You can also sort the filtered results to get a more organized view of your shortlisted companies.
There is an option to save your filter results and choose to receive notifications if new companies meet your filter criteria.

Submit project
Head over to Submit project techbehemoths.com/project-submission and include your project description and specifications, and our system will match it with the best possible tech service providers. You will get a list of curated companies ready to execute your projects.
















