OpenServed

Best SEO Agencies for Enterprise Business (2026) – Ranked by Case Studies

Intero DigitalVisit Website →
Mizuno Client-verified
SEO
Sporting Goods
5K-10K Employees
N/A
Osaka, Japan
N/A
  • +86.65% Organic Revenue
  • +41.01% Organic Traffic
Aman Resorts
SEO
Hospitality
1K-5K Employees
N/A
Baar, Switzerland
N/A
  • 90% increase in organic revenue
  • 31% increase in organic visits in the first year
  • 420,000+ unique organic visitors in the first year
Auberge Resorts
SEO
Hospitality
1K-5K Employees
N/A
Mill Valley, CA
N/A
  • 86% increase in organic traffic
  • 126% increase in paid media ROI
  • 1,000 new first page rankings in the first year
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
Etsy
SEO
E-commerce
1K-5K Employees
N/A
Brooklyn, NY
N/A
  • $17M in incremental revenue recovered
  • $9M from localization tests and $8M from technical SEO fixes
  • Hreflang and metadata rules rebuilt across 25+ markets
Intercom (Fin.ai)
SEO
SaaS
1K-5K Employees
N/A
San Francisco, CA
N/A
  • 833K impressions in the first 30 days on a brand-new domain
  • 2,100+ keywords ranked, including Top 3 positions
WebFXVisit Website →
Thompson Tractor Client-verified
GEO, SEO
Heavy Equipment
1K-5K Employees
N/A
Birmingham, AL
N/A
  • 586% Increase in Traffic From Generative AI Sources
  • 500% Increase in leads driven from AI platforms
  • 136% Increase in Visibility in Google AI Overviews
  • 116% Higher Visibility in LLMs than Closest Competitor
  • 38% Avg Increase in SEO Leads YoY
Great Northern Corporation
SEO, PPC
Manufacturing
1K-5K Employees
N/A
Appleton, WI
N/A
  • 109% INCREASE IN ORGANIC TRAFFIC YOY
  • 103% Increase in Organic Form Submissions
  • 31% INCREASE IN FORM SUBMISSIONS FROM PAID TRAFFIC
Cleveland Brothers Equipment Company
SEO, Web Design, Web Development
Heavy Equipment
1K-5K Employees
N/A
Murrysville, PA
N/A
  • 1 Horizon Interactive Award
  • 82% Increase in Organic Traffic
TripleDart DigitalVisit Website →
Atlas HXM Client-verified
PPC, SEO, Lead Generation
Professional Services
1K-5K Employees
N/A
Chicago, IL
N/A
  • 4x deal volume and 3x deal quality in 7 months
  • Conversion rate +34%
  • Cost per opportunity down 27%
  • MQL-to-opportunity rate from 41% to 55%
  • Google Ads pipeline delivered ~5.5x ROI on spend
Glean
SEO, Content Marketing
AI
1K-5K Employees
N/A
Palo Alto, CA
N/A
  • Monthly organic clicks +275% (~18K to ~67K+)
  • Monthly impressions +365% (~260K to ~1.2M+)
  • Keywords ranked grew from ~4,000 to ~22,000+
  • Total monthly conversions grew from 250 to 1,800
  • Domain Rating rose from 55 to 71 over 20 months
Major TomVisit Website →
COBS Bread Client-verified
PPC, SEO
Food & Beverage
1K-5K Employees
N/A
Vancouver, Canada
N/A
  • 40% decrease in cost per franchise lead
  • 32% increase in website traffic
  • 10% increase in promotional product sales
Criteo
SEO
Marketing
1K-5K Employees
N/A
Paris, France
N/A
  • 200% increase in organic SEO traffic
  • 78% increase in website conversions
  • 400+ videos optimized for YouTube
Sixth City MarketingVisit Website →
Kent State University (College of Business) Client-verified
SEO, PPC, CRO
University
5K-10K Employees
N/A
Kent, OH
N/A
  • Leads from Google Ads +366% (2016 vs. 2015)
  • Overall leads +135% and paid leads +148% (2017 vs. 2016)
  • 6.4x ROI in 2017
  • 10+ enrollments and nearly 3x ROI in 2019
M/I Homes
SEO, Local SEO
Construction
1K-5K Employees
N/A
Columbus, OH
N/A
  • +48% overall website traffic (Sept 2018 vs. Sept 2017)
  • +12% organic traffic
  • +58% new users (about 10,000)
Straight NorthVisit Website →
DFIN Client-verified
PPC, SEO
Finance
1K-5K Employees
N/A
Chicago, IL
N/A
  • 50 Million Impressions
  • 300% Increase in conversions
Eaton
SEO
Industrial
10K+ Employees
N/A
Beachwood, OH
N/A
  • 400% Increase in leads
Marketing EssentialsVisit Website →
Otterbein SeniorLife Client-verified
SEO, PPC, Content Marketing
Senior Care
1K-5K Employees
N/A
Lebanon, OH
N/A
  • 59% year-over-year increase in new contacts
  • 41% year-over-year increase in leads to sales
  • 63% year-over-year increase in customer growth
Kuno CreativeVisit Website →
AAON Client-verified
PPC, Content Marketing, SEO
HVAC
1K-5K Employees
N/A
Tulsa, OK
N/A
  • 19.16% click-through rate and $1.04 CPC on Delta Class PMAX ads
  • 28,999 "Prison Break" video plays
  • 6,929 clicks from the video's social share button via Google Ads
  • 91 AI Overview placements
  • Organic traffic +6.6% year over year
inSegmentVisit Website →
Rockland Trust Client-verified
SEO, PPC, Web Development
Bank
1K-5K Employees
N/A
Rockland, MA
N/A
  • First-page rankings for relevant local keywords
  • Conversion-focused microsites supporting seasonal campaigns
Cumberland Farms
Local SEO, SEO
Retail
5K-10K Employees
N/A
Westborough, MA
N/A
  • 600+ stores correctly listed across search engines and GPS providers
BNP EngageVisit Website →
CTDI Client-verified
Web Design, SEO, Content Marketing
Technology
10K+ Employees
N/A
West Chester, PA
N/A
  • Redesigned website on modern web technologies
  • Streamlined navigation and faster page loads
  • Updated digital branding
  • Content calendar and social content highlighting culture
SmartBug MediaVisit Website →
StoneX Client-verified
SEO, Web Development
Finance
1K-5K Employees
N/A
New York, NY
N/A
  • Thousands of pages redirected in a WordPress to HubSpot migration without losing search authority
Siege MediaVisit Website →
MedVet
SEO
Veterinary
1K-5K Employees
N/A
Worthington, OH
N/A
  • $115K Monthly Traffic Value Rebound in 6 Months
  • 2,302 Links
  • 136K Monthly Organic Traffic Rebound in 6 Months
Sinch
Content Marketing, SEO
SaaS
1K-5K Employees
N/A
Stockholm, Sweden
N/A
  • 1,094% Increase in Traffic Value to Blog Within One Year
  • 102% Link Growth
  • 625,287 Impressions From Siege-Generated Content
Angi
Content Marketing, SEO
Home Services
1K-5K Employees
N/A
Denver, CO
N/A
  • 5M+ Organic Impressions
  • 26 Posts Ranking Page One
  • 600+ 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
Stanford University
SEO, Content Marketing
University
10K+ Employees
N/A
Stanford, CA
N/A
  • 3.8K monthly traffic generated
  • 81 backlinks earned
  • $12000 worth of traffic generated
Quench USA
SEO, Content Marketing
Consumer Goods
1K-5K Employees
N/A
King of Prussia, PA
N/A
  • 37 new Page 1 keywords
  • $55377 boost in monthly traffic value
  • 443% increase in monthly traffic
  • 21 new keywords in positions 1-5
NP DigitalVisit Website →
Lantern by SoFi
SEO
Fintech
1K-5K Employees
N/A
San Francisco, CA
N/A
  • 1,164% increase in position 1-3 rankings YoY
  • 561% increase in organic search traffic YoY
  • 260% increase in "Select Offer" conversions YoY
Verint
SEO
SaaS
1K-5K Employees
N/A
Melville, NY
N/A
  • 210% increase in non-branded organic clicks YoY
  • 33% increase in keywords ranked in positions 1-10
  • 32% increase in total organic search clicks
SoFi Invest
SEO
Fintech
1K-5K Employees
N/A
San Francisco, CA
N/A
  • 509% increase in organic search sessions YoY
  • 22,337 new funded accounts from organic search
  • 605 new position 1-3 rankings for non-branded keywords
Cardinal Digital MarketingVisit Website →
America's Best
SEO
Retail
1K-5K Employees
N/A
Atlanta, GA
N/A
  • 120 Keywords with First-Page Rankings
  • 41% Increase in Website Traffic
  • 31% Increase in Page Views
Mission Healthcare
SEO, Web Design
Home Health
1K-5K Employees
N/A
San Diego, CA
N/A
  • 151% Increase in GBP Views YoY
  • 95% Increase in Total Organic Impressions
  • 69% Increase in Total Organic Clicks
  • 25% Increase in Total Keyword Rankings YoY
ATI Physical Therapy
PPC, SEO
Physical Therapy
5K-10K Employees
N/A
Downers Grove, IL
N/A
  • 54% Decrease in Cost Per Lead
  • 77% Increase in Conversion Rate
  • 80% of New Patients Without Physician Referral
OuterBoxVisit Website →
Haverly
PPC, Social Media Ads, SEO
Property Management
1K-5K Employees
N/A
Fort Washington, PA
N/A
  • 100% Leasing Occupancy
  • 1.9M Campaign Impressions
  • 1,020 Total Conversions
  • 89,500+ Website Sessions
Parmore Arcadia Trails
PPC, Social Media Ads, SEO
Senior Living
1K-5K Employees
N/A
Houston, TX
N/A
  • 100% Leasing Occupancy
  • 429 Total Conversions
  • 527K Campaign Impressions
  • 6,500+ Campaign Clicks
  • 19,650 Website Sessions
Dial Senior Living
PPC, Social Media Ads, SEO
Senior Living
1K-5K Employees
N/A
Omaha, NE
N/A
  • 100% Increase in PPC Conversion Rate
  • 54.55% Decrease in Cost per Conversion
  • 8x Higher CTR From GDN Retargeting
  • 20% YoY Increase in Walk-In Tours
  • 110,000 Ads Served in 90 Days
MoburstVisit Website →
Reddit
SEO
Publishing
1K-5K Employees
N/A
San Francisco, CA
N/A
  • Over 90% increase in organic downloads in under a year
  • 700+ phrases indexed in App Store top 5 rankings
Uber
SEO
Ride-Hailing
10K+ Employees
N/A
San Francisco, CA
N/A
  • 27% growth in organic downloads in 90 days
  • Keyword strategy across 10 languages
Microsoft
SEO, CRO
AI
10K+ Employees
N/A
Redmond, WA
N/A
  • UK: +134% iOS search installs
  • Japan: +107% iOS search installs
  • Australia: +64% iOS search installs
  • US: +56% iOS search installs
  • US iOS preview video A/B test: 28% conversion rate lift
Big LeapVisit Website →
Pluralsight
SEO, Content Marketing
SaaS
1K-5K Employees
N/A
Draper, UT
N/A
  • 36 Million Impressions
  • 98.6% Increase in Organic Traffic
  • 2,388 Increase in Keyword Positions
GM Nameplate
SEO, Content Marketing
Manufacturing
1K-5K Employees
N/A
Seattle, WA
N/A
  • 1,215 Improvements in Keyword Rankings
  • 6 Keywords Ranked on First Page
  • 3 Keywords Ranked #1
Visionworks
SEO, Content Marketing
Retail
5K-10K Employees
N/A
San Antonio, TX
N/A
  • 40% Increase in Clicks
  • 124% Increase in Organic Views
  • 250+ Local Content Created
CB/I DigitalVisit Website →
Ferrara
SEO
Food & Beverage
1K-5K Employees
N/A
Oakbrook Terrace, IL
N/A
  • Keywords in top 3 +63.16%
  • Keywords in top 4-10 +71.43%
  • Keywords in top 21-100 +118.31%
First Citizens Bank
SEO
Bank
10K+ Employees
N/A
Raleigh, NC
N/A
  • SEO and AI search program for a $221B-asset bank with 500+ branches
  • Gains of +63% and 2,000+ shown on page
American Stock Transfer & Trust Company (Amstock)
SEO
Finance
1K-5K Employees
N/A
Brooklyn, NY
N/A
  • Applied advanced SEO for the Global Stock Transfer & Trust Company - Amstock.com
Seer InteractiveVisit Website →
Carta
SEO
Fintech
1K-5K Employees
N/A
San Francisco, CA
N/A
  • +800% conversion rate
  • +$44K new organic conversions
VITAS Health
SEO
Healthcare
10K+ Employees
N/A
Miami, FL
N/A
  • +52% organic click-through rate
Griswold Home Care
SEO, Content Marketing
Healthcare
1K-5K Employees
N/A
Blue Bell, PA
N/A
  • +200x increase in blog traffic
  • +300K additional visitors
CTI DigitalVisit Website →
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
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
Uniper
SEO, PPC, Web Development
Energy
5K-10K Employees
N/A
Düsseldorf, Germany
N/A
  • +30% website speed
  • Stronger security and a refined online presence
Forthea Digital MarketingVisit Website →
Nexeo Plastics
SEO
Industrial
1K-5K Employees
N/A
The Woodlands, TX
N/A
  • E-commerce platform clicks up 80%
  • End market page traffic up 166%
  • Non-brand page-1 keyword performance up 107%
  • 248% boost in organic visibility
National Oilwell Varco (NOV)
SEO
Industrial
10K+ Employees
N/A
Houston, TX
N/A
  • 2,145 new organic keyword rankings
  • 28% increase in competitor share of voice
CenterPoint Energy
SEO, PPC
Utilities
5K-10K Employees
N/A
Houston, TX
N/A
  • 502% ROI on the Home Service Plus program
  • +54% page-1 non-brand keywords year over year
  • $1.2M in equipment sales revenue
  • +40% organic goal completions
CSP AgencyVisit Website →
Charter Communications (Spectrum)
SEO
Telecom
10K+ Employees
N/A
Stamford, CT
N/A
  • Organic traffic value from $11M to $23.6M per month
  • +43% page-one rankings and +49% click-through rate
  • +26% organic traffic
  • 100+ employees trained on SEO best practices
  • 95% of link value retained through website consolidation
Grid Dynamics
SEO, Content Marketing
Technology
1K-5K Employees
N/A
San Ramon, CA
N/A
  • ROI of 5,342% (4,221 lead submissions, 844 viable leads, 8 closed-won projects)
  • +472.8% new users and +73.3% organic traffic
  • +362% organic traffic to target pages
  • Keywords on page 1 grew from 143 to 215
Avalaunch MediaVisit Website →
Kaiser Permanente
SEO, CRO
Healthcare
10K+ Employees
N/A
Oakland, CA
N/A
  • 39% increase in YOY blog traffic
  • 1,953% increase YOY in keyword traffic
  • 928% increase in YOY website traffic
  • 37% YoY increase in provider traffic
Staples
Content Marketing, SEO
Office Supplies
10K+ Employees
N/A
Framingham, MA
N/A
  • Built thought leadership content
  • Grew organic traffic to the content hub
  • Improved rankings for competitive keywords
PortentVisit Website →
RealTruck
SEO, Content Marketing
Automotive
5K-10K Employees
N/A
Ann Arbor, MI
N/A
  • 94% Single-Year Growth in Organic Traffic
  • 48% Increase in Organic Revenue
  • 1M New Shoppers Through Organic Search
Enercare
SEO, Content Marketing, CRO
Home Services
1K-5K Employees
N/A
Markham, Canada
N/A
  • 23% Increase in YoY Organic Traffic
  • 24% Increase in Form Fill Conversion Rates
  • 65% Increase in YoY Total Conversions
NoGoodVisit Website →
Intuit
PPC, SEO, CRO, Email Marketing, SMS Marketing
SaaS
1K-5K Employees
N/A
Mountain View, CA
N/A
  • 500% Increase From Trial Sign-Ups to Active Users
  • 45% Increase in Trial Sign-Ups Using Persona-Specific Search Ads
  • 100% NPS Score
Spring Health
PPC, SEO, CRO, Email Marketing, SMS Marketing
Healthcare
1K-5K Employees
N/A
New York, NY
N/A
  • 113% Increase in Provider Qualified Leads
  • 149% Increased Conversion Rate
  • 58% Increase in Employee Headcount
  • 30% Increase in Patient Registrations MoM
Coalition TechnologiesVisit Website →
Medisys Health Network
SEO
Medical
1K-5K Employees
N/A
Jamaica, NY
N/A
  • 23.84% Increase in Organic New Users
  • 41,739 New Users
  • 16.07% Increase in Traffic to the Site This Month
  • 48% Increase in Organic Sessions
  • 51% Increase in Organic New Users Have
Roku Inc.
Email Marketing, SEO
Consumer Electronics
1K-5K Employees
N/A
San Jose, CA
N/A
  • 25.47% Increase in Users
  • 27.15% Increase in Sessions
  • 8.81% Increase in New Users
  • 25% Increase in Users
  • 24.34% Increase in Users
VictoriousVisit Website →
SoFi
SEO
Fintech
5K-10K Employees
N/A
San Francisco, CA
N/A
  • 11,900 Page-One Keywords Achieved
  • 3,220 Increase in Tracked Keyword Growth
  • #1 Ranking for "Student Loan Refinance"
Delta Electronics
SEO
Consumer Electronics
1K-5K Employees
N/A
Fremont, CA
N/A
  • 105% Increase in Conversion Events
  • 92% Increase in Top-10 Keywords
  • 66% Increase in Conversion Rate
First Page Digital SingaporeVisit Website →
Avis
SEO
Car Rental
10K+ Employees
N/A
Singapore
N/A
  • 442% increase in conversions
  • 278% increase in clicks
  • 83% increase in keywords ranked on page 1
M1 Maxx
SEO, GEO
Telecom
1K-5K Employees
N/A
Singapore
N/A
  • 65% AI mention rate for 'sim plan recommendations'
  • 200% AI visibility growth

Find the best SEO agencies for your business size