Owning your search results is the new baseline for digital visibility. A slick website alone won’t cut it—whether you’re a Shoreditch startup or a Canary Wharf enterprise, SEO now determines how (and if) customers find you.
The challenge? London is crowded with agencies promising “#1 rankings” and “guaranteed results.” In reality, only a select few consistently deliver sustainable, measurable growth.
To help you cut through the noise, here’s a curated list of the Top 10 SEO Agencies in London for 2025—teams known for turning organic visibility into traffic, leads, and real revenue (not vanity metrics).
Top 10 SEO Agencies in London 2025
- Pearl Lemon
- The SEO Works
- Impression
- Passion Digital
- Bird Marketing
- CEEK Marketing
- PNdigital Ltd
- Breakline
- GenieCrawl
- Delante
1. Pearl Lemon
A go-to for brands expanding beyond the UK, Pearl Lemon excels at international SEO. Expect robust link-building, technical remediation, and multilingual strategies designed for competitive markets.
Best for: International SEO growth
Location: London, UK
Founded: 2016
Industries: SaaS, Healthcare, Finance, eCommerce
Pricing: From £2,500/month
Services: International SEO, technical audits, link building, local SEO, content marketing
Choose Pearl Lemon if you’re targeting multiple regions while strengthening your UK presence.
2. The SEO Works
This team stands out in tightly regulated sectors. They prioritise transparent reporting and ROI, making them a safe pair of hands where compliance and accuracy matter.
Best for: Healthcare, legal, and regulated sectors
Location: London & Sheffield, UK
Founded: 2009
Industries: Healthcare, Legal, Education, Professional Services
Pricing: From £3,000/month
Services: SEO audits, PPC, digital PR, content creation, local SEO
If your industry has strict rules, The SEO Works knows how to win without missteps.
3. Impression
Impression fuses analytics, CRO, and content strategy to ensure organic traffic converts. Their data-first approach turns dashboards into decisions.
Best for: Data-driven SEO & CRO integration
Location: London & Nottingham, UK
Founded: 2012
Industries: eCommerce, SaaS, Finance, Retail
Pricing: From £4,000/month
Services: Technical SEO, CRO, paid search, content marketing, analytics
Ideal for teams that live in Looker, GA4, and spreadsheets and want SEO that proves its value.
4. Passion Digital
Storytelling meets performance. Passion Digital builds brand authority while earning rankings, making them a strong fit for lifestyle and hospitality brands.
Best for: Creative SEO & brand storytelling
Location: London, UK
Founded: 2012
Industries: Lifestyle, Retail, Tech, Hospitality
Pricing: From £3,500/month
Services: SEO, social media marketing, paid advertising, content strategy
Pick Passion Digital when you need emotional resonance and measurable results
5. Bird Marketing
Built for SMEs, Bird Marketing delivers practical, transparent SEO that scales without stretching budgets. Think tailored roadmaps and close collaboration.
Best for: SME-focused SEO strategies
Location: London & Essex, UK
Founded: 2014
Industries: SMEs, eCommerce, B2B services
Pricing: From £2,000/month
Services: SEO, PPC, web design, digital branding
Great if you want an agency that feels like part of your in-house team.
6. CEEK Marketing
CEEK blends SEO with influencer and social campaigns, uniting outreach, content, and search for culture-forward brands.
Best for: Influencer-driven SEO campaigns
Location: London, UK
Founded: 2013
Industries: Fashion, Hospitality, Lifestyle, Tech
Pricing: From £2,500/month
Services: SEO, influencer marketing, social ads, PR
Choose CEEK when your audience lives on social and your brand needs momentum across channels.
7. PNdigital Ltd
A technical powerhouse. PNdigital tackles crawl inefficiencies, indexing issues, and Core Web Vitals—perfect for sites where performance is leaving money on the table.
Best for: Technical SEO & site optimisation
Location: London, UK
Founded: 2016
Industries: Finance, SaaS, eCommerce
Pricing: From £2,200/month
Services: Technical SEO, audits, local SEO, web development
If your site is slow, messy, or mis-indexed, start here.
8. Breakline
Breakline’s speciality is authoritative backlinks via digital PR. If your content is solid but your domain authority lags, they know how to earn coverage that counts.
Best for: Link-building & authority growth
Location: London, UK
Founded: 2012
Industries: SaaS, Tech, Retail
Pricing: From £3,000/month
Services: Link-building, SEO audits, keyword research, PR campaigns
Expect credible placements—not low-quality directories.
9. GenieCrawl
Laser-focused on local search. GenieCrawl helps businesses win in Google Maps and “near me” queries with GBP optimisation and reviews strategies.
Best for: Local SEO & Google Maps optimisation
Location: London, UK
Founded: 2018
Industries: Hospitality, Retail, Local Services
Pricing: From £1,500/month
Services: Local SEO, reviews management, Google Business Profile optimisation
If footfall and local leads matter most, GenieCrawl is built for you.
10. Delante
Headquartered in Poland with a strong London footprint, Delante specialises in international eCommerce SEO—ideal for stores targeting multiple markets.
Best for: eCommerce SEO with global reach
Location: Kraków, Poland (serving London clients)
Founded: 2014
Industries: eCommerce, SaaS, Retail
Pricing: From £2,800/month
Services: eCommerce SEO, international SEO, content strategy, paid media
A smart option when you need scalable growth across regions and catalogues.
Final Thoughts
Choosing an SEO partner isn’t about the lowest fee—it’s about fit and focus.
Need global growth? Pearl Lemon or Delante.
Operate in regulated markets? The SEO Works.
Want decisions driven by data? Impression.
Chasing local dominance? GenieCrawl.
Review case studies, understand their process, and ensure their strengths map to your goals. The right agency won’t just lift rankings they’ll drive durable revenue.
FAQ
How do I choose the best SEO agency in London?
Prioritise sector experience, transparent reporting, and proof of measurable outcomes.
What do SEO packages in London usually cost?
Typically £1,500/month for small businesses up to £8,000+/month for larger or more competitive scopes.
How long does SEO take to show results?
Expect meaningful movement in 3–6 months; tough niches may take longer.
Should I hire an SEO consultant instead of an agency?
Consultants are ideal for audits and targeted advice; agencies bring full-service execution and broader resourcing.
