OpenServed

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

Opace Digital AgencyVisit Website →
Acorns Children's Hospice Client-verified
Web Development, Web Design, SEO
Non Profit
201-500 Employees
N/A
Birmingham, United Kingdom
N/A
  • 129-page website built to a 12-week deadline
  • Launched on schedule on a new website framework
  • Year-on-year website and SEO support
Wrights Plastics Client-verified
Web Development, Web Design, SEO
Manufacturing
51-200 Employees
N/A
West Bromwich, United Kingdom
N/A
  • Magento website rebuilt after company acquisition
  • Client reports revenue moving back up
Spaces and Places Client-verified
Branding, Web Design, SEO
Storage
N/A
N/A
Nuneaton, United Kingdom
N/A
  • Full rebrand and website redesign delivered in 2012
  • SEO services provided ahead of the rebrand
ClickSliceVisit Website →
Questmoor Pharmacy Client-verified
SEO
Healthcare
1-10 Employees
N/A
Potters Bar, United Kingdom
N/A
  • 340% increase in targeted traffic
Dejex Client-verified
SEO
Home & Garden
11-50 Employees
N/A
Spalding, United Kingdom
N/A
  • 213% increase in organic traffic
Humax Direct Client-verified
SEO
Consumer Electronics
1-10 Employees
N/A
New Malden, United Kingdom
N/A
  • 69% increase in organic revenue
NFlowVisit Website →
Orbis Environmental Client-verified
SEO, PPC
Professional Services
1-10 Employees
N/A
United Kingdom
N/A
  • 116% inquiry increase
  • 4.93% average CTR
  • 2M+ organic impressions and 21.3K organic traffic
  • Client grew from 2 to 10 employees in 3 years (testimonial)
Indian Grocery Store
SEO
Retail
N/A
N/A
United Kingdom
N/A
  • 2.54M impressions and 10K+ clicks
  • 93K+ sessions at an 89.02% engagement rate
  • 520+ key events
Tonic Studios
SEO, PPC
Consumer Goods
N/A
N/A
United Kingdom
N/A
  • £920,962 conversion value at a 10.81 ROAS on £135K+ ad spend
  • 27,060 conversions at an 11.44% average conversion rate
  • 67.2M+ ad impressions
  • 18M+ website traffic and £48.60 average order value
Previsible | The AI Discovery AgencyVisit Website →
Sage Client-verified
SEO
SaaS
10K+ Employees
N/A
Newcastle upon Tyne, United Kingdom
N/A
  • Lead volume up 150%
  • SEO health score up from 57% to 97% in eight months
  • One SEO strategy across six brands in the US, UK and Germany
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
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
Aldermore Bank
SEO, CRO
Bank
1K-5K Employees
N/A
Reading, United Kingdom
N/A
  • £5.9M additional revenue
  • +15% callback form conversion rate
  • £393 returned for every £1 spent
Hill Dickinson
SEO, Web Development
Law Firm
1K-5K Employees
N/A
Liverpool, United Kingdom
N/A
  • +98% organic users
  • +93% organic visits
  • 3,600 high-ranking keywords a year after launch
UClimb LtdVisit Website →
Envoprint
SEO
Manufacturing
N/A
N/A
Chesterfield, United Kingdom
N/A
  • 149 keywords on page 1, 65 of them in positions 1-3
  • Rankings up 1,982 positions across key keywords
  • 57,000+ organic sessions in under four years
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
Mount Lighting
SEO
Manufacturing
N/A
N/A
Luton, United Kingdom
N/A
  • Rankings up 3,031 positions, with 67 keywords on page 1
  • Organic sessions up more than 100% to 69,123 over 12 months
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
Plume
SEO, PPC, Content Marketing
Software Development
1-10 Employees
N/A
Bristol, United Kingdom
N/A
  • 1:12 return on ad spend (ROAS)
  • 2X revenue growth over two years
  • +400% increase in relevant search visibility
Page One PowerVisit Website →
YorkTest
SEO, Content Marketing
Healthcare
11-50 Employees
N/A
York, United Kingdom
N/A
  • 270% Increase in U.S. Organic Traffic
  • 8,000+ New Organic Keywords
  • 'Food Sensitivity Test' Ranking Improved From #19 to #10
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
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
ProfileTreeVisit Website →
Belmore Court & Motel
Web Design, SEO
Hospitality
11-50 Employees
N/A
Enniskillen, United Kingdom
N/A
  • 1,000+ organic visitors per month
EastSide Arts
Web Design, Web Development, SEO
Non Profit
1-10 Employees
N/A
Belfast, United Kingdom
N/A
  • 800+ organic visitors per month
  • Ranks for close to 1,000 keywords
RT7 DigitalVisit Website →
Freshly Fermented
PPC, Content Marketing, SEO
Food & Beverage
1-10 Employees
N/A
Fareham, United Kingdom
N/A
  • Sales up 89% in 3 months (November 2019 to February 2020)
  • ACoS cut from 36.1% to 24.2% in 2 months
  • Conversion rate of 3.50% by the third month
Click IntelligenceVisit Website →
Timber Windows Direct
SEO
Home & Garden
1-10 Employees
N/A
Eversley, United Kingdom
N/A
  • Keywords in the top 3 up from 3 to 12 (June 2018 vs June 2019)
  • Keywords in the top 10 up from 5 to 37
  • Total ranking keywords up from 156 to 248
  • Organic traffic up from 124 to 602
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
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
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
BraftonVisit Website →
Routledge
SEO
Publishing
1K-5K Employees
N/A
Abingdon, United Kingdom
N/A
  • 4900 monthly search volume ranked for target keyword
  • 11000 combined monthly search volume across ranked variant keywords
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
Coalition TechnologiesVisit Website →
Bob & Lush
PPC, SEO
Pet Products
1-10 Employees
N/A
Batley, United Kingdom
N/A
  • 238.92% Increase in Organic Users Has

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