OpenServed

Best SEO Agencies in London, United Kingdom (2026) – Ranked by Case Studies

Geeky TechVisit Website →
Lyon Managed Services Client-verified
SEO
Technology
11-50 Employees
N/A
London, United Kingdom
N/A
  • 2450% increase in page one rankings
  • 590% growth in ranked keywords
  • 280% rise in ranked pages
District Technologies Client-verified
SEO, Content Marketing
SaaS
11-50 Employees
N/A
London, United Kingdom
N/A
  • 1200% increase in page 1 rankings
  • 443% increase in users
  • 267% increase in goal conversions
Yoti Client-verified
SEO, Content Marketing
Technology
201-500 Employees
N/A
London, United Kingdom
N/A
  • 100% more monthly impressions over 12 months
  • 63% more monthly clicks over 12 months
  • 19 page-one keywords in 12 months
Figment AgencyVisit Website →
PC Docs Client-verified
SEO, Local SEO, Content Marketing
Technology
11-50 Employees
N/A
London, United Kingdom
N/A
  • 38% increase in organic traffic after the first year
  • 51 Top 3 rankings
  • 100+ Page 1 rankings
  • 217% increase in Google Maps views
Start Hawk
SEO
SaaS
1-10 Employees
N/A
London, United Kingdom
N/A
  • 43 Page 1 rankings
  • 151% YoY increase in organic traffic
  • 273% YoY increase in goal completions
  • +6,235 increase in Google places
The London School of Beauty & Make-Up
SEO
Education
N/A
N/A
London, United Kingdom
N/A
  • 34% YoY increase in organic traffic
  • 184 Top 3 rankings
  • 321 Page 1 rankings
  • 408% YoY increase in goal completions from organic search
Signify Digital LtdVisit Website →
The Animation Guys Client-verified
SEO, Content Marketing
Media
1-10 Employees
N/A
London, United Kingdom
N/A
  • Ranking keywords up from 87 to 250+ in the first 6 months
  • 103% increase in organic traffic in 2021 versus 2020
  • 62% rise in top 10 keyword rankings in the first year
  • #1 for 'Animation Production London' within 6 months, from 26th
KMJ Solicitors
PPC, SEO
Law Firm
11-50 Employees
N/A
London, United Kingdom
N/A
  • 10+ high-quality enquiries via PPC per month on average
  • Google Ads average session duration up by over 1 minute
  • 32% increase in average position of target keywords
  • 41% increase in organic sessions since optimisation began
Raedan
SEO, Content Marketing
Finance
1-10 Employees
N/A
London, United Kingdom
N/A
  • 67% increase in contact form completions after one year
  • 12x more first-page keywords after 12 months
  • 5.9% average visitor conversion rate from the new landing pages
Ink DigitalVisit Website →
Connect Management Client-verified
SEO
Marketing
51-200 Employees
N/A
London, United Kingdom
N/A
  • +63% increase in organic impressions
  • +29% increase in organic clicks from high-intent keywords
  • +8.4 average keyword position improvement across 20 core phrases
Crosstown
SEO
Food & Beverage
51-200 Employees
N/A
London, United Kingdom
N/A
  • 334.711% increase in ranking keywords
  • 126.08% increase in organic clicks
  • 96% increase in organic revenue
Dishoom
SEO, Local SEO
Restaurant
1K-5K Employees
N/A
London, United Kingdom
N/A
  • 60K increase in clicks
  • 19% increase in non-branded clicks
  • 152% increase in non-branded impressions
New Perspective MarketingVisit Website →
Carbon Clean Client-verified
Branding, SEO, Lead Generation
Environmental Services
51-200 Employees
N/A
London, United Kingdom
N/A
  • $113M+ pipeline value created in the first year from online sources
  • +400% organic traffic over 6 months
  • +162% lead generation YoY
  • Millions added to pipeline within 60 days
POLARISVisit Website →
Tourbar
SEO
Travel
1-10 Employees
N/A
London, United Kingdom
N/A
  • 40% increase in traffic
  • 6x countries optimised
  • 23% increase in signups
Marie Curie
SEO
Non Profit
1K-5K Employees
N/A
London, United Kingdom
N/A
  • 250+ features gained
  • 10% increase in domain authority
  • 2,182 social shares
Fruit 4 London
SEO
Food & Beverage
11-50 Employees
N/A
London, United Kingdom
N/A
  • 1400% traffic increase
  • 35% increase in new customers
  • 500% revenue increase
Reflect DigitalVisit Website →
UKTV Play
SEO
Media & Broadcasting
201-500 Employees
N/A
London, United Kingdom
N/A
  • 378% increase in backlinks
  • 22% increase in impressions
  • 27% increase in citation flow
  • 22% increase in trust flow
Roehampton University
SEO
University
1K-5K Employees
N/A
London, United Kingdom
N/A
  • 49% increase in organic users
  • 4.7% increase in organic sessions
  • 22% improved CTR
  • 50 more ranking keywords in the top 20
Greenwich Peninsula (SEO)
SEO
Real Estate
N/A
N/A
London, United Kingdom
N/A
  • 263% YoY visibility increase
  • 130% YoY impression growth
  • 71% YoY click growth
  • 30% improved average ranking position YoY
CTI DigitalVisit Website →
Royal College of Occupational Therapists (SEO)
SEO
Non Profit
51-200 Employees
N/A
London, United Kingdom
N/A
  • +55% organic page views
  • +50% mobile traffic
  • +16% total users and +11% organic users
Royal College of Occupational Therapists
SEO, Web Development
Non Profit
51-200 Employees
N/A
London, United Kingdom
N/A
  • +89% mobile traffic
  • -43% bounce rate
  • +51% organic page views and +49% organic mobile traffic
Drinkaware
SEO, PPC, Email Marketing
Non Profit
11-50 Employees
N/A
London, United Kingdom
N/A
  • +127% conversion rate from paid search
  • 77% open rate on targeted emails
  • +63% overall engagement
Exposure NinjaVisit Website →
Master the Curriculum
Web Development, SEO
Education
1-10 Employees
N/A
London, United Kingdom
N/A
  • 70% increase in YoY traffic
  • 27,000 existing customer accounts migrated
  • 3,200 products successfully migrated
Clear Review
SEO, Content Marketing
SaaS
N/A
N/A
London, United Kingdom
N/A
  • $33 million cash exit achieved
  • 111 position 1 keyword rankings in US
  • 500+ social shares on PR content
Accelex
SEO, Content Marketing, CRO
Fintech
51-200 Employees
N/A
London, United Kingdom
N/A
  • 112% of lead target within 9 months
  • 17% organic traffic growth YoY
  • 65% increase in key solution page sessions
ClickSliceVisit Website →
Furl
SEO
Furniture
11-50 Employees
N/A
London, United Kingdom
N/A
  • #1 ranking for "designer sofa beds" (up 30 positions)
  • 44% month-on-month increase in organic traffic
  • Organic traffic now matches paid traffic
Bauce Brothers
SEO
Food & Beverage
1-10 Employees
N/A
London, United Kingdom
N/A
  • 628% increase in organic traffic to collection pages
  • Page 1 rankings for new niche collection pages
PixatedVisit Website →
Knight Frank
PPC, SEO
Real Estate
N/A
N/A
London, United Kingdom
N/A
  • 46% increase in lead volume
  • 55% of leads closed to paying clients
  • 81% lower CPA
  • 90% increase in traffic to the landing page
Bloom & Wild
PPC, SEO, Social Media Ads
Florist
N/A
N/A
London, United Kingdom
N/A
  • Ranking first for 90% of target search phrases
  • 122% increase in website conversions
  • 59% lower PPC CPA
  • 48% lower CPC
UClimb LtdVisit Website →
AURA Architecture
SEO
Architecture
1-10 Employees
N/A
London, United Kingdom
N/A
  • Rankings up 6,174 positions since August 2019, with 88 keywords on page 1
  • Organic traffic up nearly 700% to 90,455 sessions
Intelligent People
SEO, Content Marketing
Recruitment
N/A
N/A
London, United Kingdom
N/A
  • Page-1 keywords grew from 71 (May 2022) to 314 (May 2025)
  • Monthly impressions up from 737K to 1.97M (May 2024 to May 2025)
  • Monthly clicks up from 13.8K to 14.3K (May 2024 to May 2025)
  • Average position improved from 30.7 to 26.3 (May 2024 to May 2025)
Hydra CreativeVisit Website →
ElectraLink
SEO, GEO
Energy
51-200 Employees
N/A
London, United Kingdom
N/A
  • 48.61% increase in engaged time on the website
  • Top spot on Google for several key search terms
  • Google AI Overview recognition
Odyssey New MediaVisit Website →
Scruffy Dog Creative Group
SEO, PPC, Social Media Ads
Arts & Entertainment
51-200 Employees
N/A
London, United Kingdom
N/A
  • +320% page 1 rankings increase
  • +304% organic traffic increase
  • +2 new brands
Republic MarketingVisit Website →
Rove Legal
SEO, Content Marketing, CRO
Law Firm
1-10 Employees
N/A
London, United Kingdom
N/A
  • 11K new monthly website visitors
  • 960 new first-page keyword rankings (up from 19)
  • 1,979 keywords ranking in total
  • 195 keywords in the top 3 positions
  • 80% increase in enquiries
SEO BrandVisit Website →
MOO
SEO, GEO
Printing
201-500 Employees
N/A
London, United Kingdom
N/A
  • 1,500%+ increase in monthly ChatGPT citations
  • 44% increase in Gemini visibility
  • 3,000%+ increase in total monthly AI impressions
  • 600+ pages cited by AI models
MoburstVisit Website →
Titanbet
SEO
Gaming
51-200 Employees
N/A
London, United Kingdom
N/A
  • 40x keyword performance improvement
  • 3,900% increase in overall keyword traffic
  • 60% improvement in average daily organic download rate
  • 10 keywords ranked in top 10
PMGVisit Website →
Travelex
SEO, Content Marketing, Data & Analytics
Finance
1K-5K Employees
N/A
London, United Kingdom
N/A
  • 31000 organic clicks in 6 months
  • 3.6 million organic impressions in 6 months
  • 33% YoY traffic growth
  • 21 new articles created
Page One PowerVisit Website →
Kreo
SEO, Content Marketing
SaaS
11-50 Employees
N/A
London, United Kingdom
N/A
  • 216% Increase in Total Ranking Keywords
  • 394% Increase in Keywords in Top 10
  • 177% Increase in Organic Traffic YoY
VictoriousVisit Website →
Exceptional Villas
SEO
Travel
11-50 Employees
N/A
London, United Kingdom
N/A
  • 571% Increase in Organic Traffic
  • 3x Increase in Ranking Keywords
  • 463% Increase in Page One Keywords
  • 780% Return on Investment
Allies GroupVisit Website →
Summit: Ally Pally (Wire & Sky)
SEO, PPC, Social Media Ads
Hospitality & Leisure
N/A
N/A
London, United Kingdom
N/A
  • 60+ print and online articles reaching an audience of 3.2 million+
  • 60+ influencer social posts across TikTok, Instagram, Facebook and X
  • Sell-out opening day
  • Broadcast coverage on ITV and BBC London
NFlowVisit Website →
Avita Jewellery
PPC, SEO
Retail
N/A
N/A
London, United Kingdom
N/A
  • £90K+ in online sales and £370K+ in offline sales
  • £1,043 average order value
  • 11K+ organic traffic and 37.6M+ organic impressions
  • 1.08% average CTR at a £0.82 average CPC
Reeva DigitalVisit Website →
Shenai Wedding
SEO
Event Services
N/A
N/A
London, United Kingdom
N/A
  • Organic sessions +158%
  • Organic engagement +198%
  • Leads +180%
  • New users +163%
  • Engagement time +124%
Impressive Digital AgencyVisit Website →
Graff (via Kennedy)
PPC, SEO
Jewelry
N/A
N/A
London, United Kingdom
N/A
  • 5.5M+ impressions across paid channels
  • 35,000+ outbound clicks
  • 100% of "Graff" keywords ranking on page 1
Elit-WebVisit Website →
Omnisend
SEO
SaaS
201-500 Employees
N/A
London, United Kingdom
N/A
  • 2x organic traffic
  • 12,000 referring links
CB/I DigitalVisit Website →
Get Licensed
SEO
Education
51-200 Employees
N/A
London, United Kingdom
N/A
  • SEO recovery plus long-term SEO for the UK's largest security training company