Organic search has never mattered more. Search has changed. AI Overviews now sit at the top of Google. LLMs like ChatGPT are where people go for product recommendations. GEO and AEO are changing how brands get discovered entirely. All things considered, having your SEO nailed is the difference between being found and being invisible. The businesses investing in it now are building an advantage that’ll be very hard to close later. Not sure where to start? We’ve pulled together the top SEO agencies in the UK across different specialisms so you can find the right fit for your business without wading through hundreds of agency websites to get there.
1. eComOne: Best eCommerce SEO Agency in the UK
Location: Lincoln | Best for: eCommerce brands (£3M–£30M revenue)
A lot of agencies claim to do eCommerce SEO, but few actually understand it. We do.
eComOne was founded by Richard Hill, who built and scaled his own multi-million-pound eCommerce business before launching the agency. That means we understand product page SEO, category architecture, seasonal demand and the difference between traffic that looks good in a report and traffic that actually fills a shopping basket.
We’ve been running for over 13 years and are B Corp certified. Our eCommerce SEO service is built specifically for online retailers, covering technical fixes, category page optimisation, content strategy and link building. PPC, Digital PR and CVO are all part of the mix too, making us a growth partner rather than a one-trick rankings provider.
Our work with Safelincs is a good example of what that looks like in practice. Working in fire safety, we helped them rank strongly in Google and become the brand that AI tools like ChatGPT reference when people search for fire safety products. That’s the kind of SEO that pays dividends for years.
We were named eCommerce Team of the Year at the eCommerce Awards, and our podcast eCom@One has clocked over 200 episodes with industry leaders on everything from Google Ads to the realities of scaling a brand.
Explore our case studies or get in touch to see what’s possible.
What makes us stand out: Deep eCommerce specialism, B Corp certified, full-funnel performance marketing and a founder who’s actually run an eCommerce business.
The Top 10 SEO Agencies in the UK
Blue Array: Best for Pure SEO Specialism at Scale
ReadingBest for: Mid-market to enterprise brands prioritising organic search
Blue Array bill themselves as the UK’s largest specialist organic search agency. No other services such as PPC or social. Just SEO and Generative Engine Optimisation (GEO), done with depth.
Founded by Simon Schnieders (who previously led SEO at Zoopla and the Daily Mail) they coined the term “consulgency” to describe their model: consultancy-level thinking with agency-level execution. They also run their own SEO Academy.
What makes them stand out: Pure-play SEO focus, GEO capabilities and enterprise-ready scale without the full-service price tag.
Impression Digital: Best for Integrated Performance Marketing
NottinghamBest for: Mid-market brands wanting SEO alongside wider digital growth
Impression Digital treats SEO as one part of a larger commercial strategy. With over 120 staff, they work with businesses that want SEO sitting alongside paid media, CRO and broader digital activity – particularly those operating across multiple regions or international markets.
What makes them stand out: Strong integration of SEO and paid media; a good fit for brands wanting joined-up thinking across multiple channels.
The SEO Works: Best for Long-Term Agency Partnerships
Sheffield / London / LeedsBest for: Brands wanting a reliable, results-driven partner
The SEO Works has been running since 2008 and has grown to over 80 staff. They’re a Google Premier Partner, have won over 30 industry awards, and count the NHS and Decathlon among their clients. Their reputation is built on long-term partnerships rather than short-term wins, which is how SEO works best.
What makes them stand out: Proven track record across complex campaigns and a genuine commitment to keeping clients for the long haul.
Propeller: Best SEO Agency for Hospitality and Travel Brands
LondonBest for: Hotels, restaurants, travel brands and food businesses
Propeller focus on hospitality, food, drink and travel. Their clients include Twinings and Firmdale Hotels, and their sector knowledge gives them a real edge when it comes to how consumers search in these industries. If you’re in hospitality and want an agency that truly gets your world, Propeller is one of the best in the UK.
What makes them stand out: Deep hospitality and travel specialism with a thorough understanding of search intent in experience-led sectors.
Digitaloft: Best for Combining Technical SEO and Digital PR
Kendal / ManchesterBest for: Brands wanting authority-building alongside technical SEO
Digitaloft treat technical SEO and digital PR as a single unified strategy rather than two separate services. For brands that want to improve rankings and build online authority at the same time, that’s a smart approach. Their Cumbrian base also means senior attention without the London price premium.
What makes them stand out: Creative digital PR fused with technical SEO and a strong record for improving domain authority.
SALT.agency: Best for Complex Technical SEO
Leeds / LondonBest for: Brands with complex technical requirements and international ambitions
SALT.agency builds bespoke strategies rather than applying the same template to every client. They’re particularly strong on technically demanding work such as crawl budget issues and for businesses operating across global markets.
What makes them stand out: Deep technical expertise, international reach and no off-the-shelf packages.
Go Up: Best SEO Agency for Legal, Property and Recruitment
Soho, LondonBest for: Legal firms, property companies and recruitment agencies
Go Up has built deep sector knowledge across legal, property and recruitment. They combine SEO with digital PR as a unified service and offer AI search optimisation across ChatGPT, Gemini and Perplexity. It’s a small team by design, so senior practitioners handle accounts directly, which is worth a lot.
What makes them stand out: Sector-specific expertise, GEO capabilities and direct senior involvement on every account.
Skale: Best SEO Agency for B2B SaaS Companies
LondonBest for: B2B SaaS and technology companies
Skale works exclusively with B2B SaaS businesses, which puts them in a completely different lane to most agencies on this list. Their entire model is built around connecting SEO to the metrics that actually matter in SaaS rather than reporting on traffic.
They’re known for large-scale content programmes and link acquisition built around aggressive growth targets. They also build detailed 12-month revenue forecasting models before a campaign begins, so clients know exactly what they’re investing in and why.
What makes them stand out: Exclusively B2B SaaS, revenue-tied reporting, upfront forecasting and a team that genuinely understands long sales cycles and complex buying decisions.
Reboot Online: Best for Research-Led SEO Across Multiple Sectors
UK-based (Remote)Best for: Brands in eCommerce, finance, travel and B2B wanting a data-first approach
Reboot Online run their own independent SEO experiments to test what actually moves rankings, rather than relying on industry assumptions. Their team covers multiple sectors with in-house market specialists across key European regions for brands with international ambitions. If you want to understand the thinking behind your strategy rather than just receive a monthly report, they’re a good match.
What makes them stand out: Independent SEO research, multi-sector experience and a genuinely data-led approach.
How to Choose the Right SEO Agency for Your Business
A few questions worth asking before you commit to any of the top SEO agencies in the UK:
- Do they have case studies in your sector? Generic traffic growth figures tell you very little. Ask for examples that show revenue impact. If you’re an eCommerce brand, see what strong SEO results actually look like.
- How do they handle AI search? Google’s AI Overviews and tools like ChatGPT are now part of how people discover brands. Any agency not thinking about GEO in 2026 is already behind.
- What does success look like to them? If an agency leads with keyword rankings rather than revenue, that’s a yellow flag. Rankings are a means to an end, never the end itself.
If you’re an eCommerce brand serious about scaling, there’s a clear place to start. Get in touch with eComOne to see what’s possible, or book a free strategy session and we’ll show you exactly where your biggest organic opportunities are.
About the Author
Emma Derbyshire
Head of Growth
Emma Derbyshire is Head of Growth at eComOne, one of the UK’s leading eCommerce growth agencies. With over a decade of experience in online retail, she helps established eCommerce brands turn underperforming traffic into scalable, search-led revenue. Emma works closely with ambitious retailers to implement profit-focused growth frameworks across SEO and PPC, helping brands outrank […]
