OpenServed

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

Big LeapVisit Website →
SwimJim (Content Marketing)
Content Marketing, SEO
Fitness
51-200 Employees
N/A
Houston, TX
N/A
  • 70,000 New Page Views
  • 1,300 New Keywords Ranking
  • 430 Keywords Ranked on First SERP
Agility
SEO, Content Marketing
B2B
51-200 Employees
N/A
Draper, UT
N/A
  • 1,571% Increase in Keywords
  • 548% Increase in Organic Users
  • 412% Increase in Organic Sessions
KodeKloud
SEO, Content Marketing
Education
51-200 Employees
N/A
Singapore
N/A
  • 376K Increase in Impressions
  • 829 Increase in Positions on Google
  • 19K Increase in Clicks
BraftonVisit Website →
Faronics
Content Marketing, SEO
Cyber Security
51-200 Employees
N/A
Vancouver, Canada
N/A
  • 17% increase in blog pageviews QoQ
  • 76% increase in overall traffic
  • 98 goal completions in a single month
FFVA Mutual
Content Marketing, SEO
Insurance
51-200 Employees
N/A
Maitland, FL
N/A
  • 3x total organic keyword rankings on blog in 2020
  • 26 new referring domains in 2020
  • 14% increase in blog sessions in 6 months
  • 9% increase in new users in 6 months
Gerard Malouf and Partners
SEO, Content Marketing
Law Firm
51-200 Employees
N/A
Parramatta, Australia
N/A
  • 16 Position 1 rankings
  • 52 Page 1 rankings
  • 1222 blog goal completions
  • 100000+ sessions generated
  • nearly 2000 website conversions
Siege MediaVisit Website →
Tushy
Content Marketing, SEO
Ecommerce
51-200 Employees
N/A
Brooklyn, NY
N/A
  • 323% Increase in Traffic Value to Blog in Six Months
  • 400% Increase in Organic Traffic to Blog Within One Year
  • Top Traffic Attributed to Siege-Generated Content
TurboTenant
Content Marketing, SEO
Real Estate
51-200 Employees
N/A
Fort Collins, CO
N/A
  • 180% Increase in Organic Traffic to Blog in One Year
  • 280+ Links Generated
  • Top Ranking for "Free Tenant Screening" Keyword
Statrys
Content Marketing, SEO
Fintech
51-200 Employees
N/A
Hong Kong
N/A
  • $518,801 Increase in Traffic Value in 6 Months
  • 365% Increase in Organic Traffic in 6 Months
  • 1,622+ Links
VictoriousVisit Website →
Opencare
SEO
Dental
51-200 Employees
N/A
Toronto, Canada
N/A
  • 7,312 Positive Google Position Changes
  • 4.5M Impressions for "dentist near me"
  • 85% Increase in Click-Through Rate
Tithe.ly
SEO
SaaS
51-200 Employees
N/A
Nashville, TN
N/A
  • 7,757% Increase in Organic Clicks
  • 513% YoY Increase in Organic Traffic
  • 11,345 New Keywords Ranked
CSA Transportation
SEO
Logistics
51-200 Employees
N/A
Toronto, Canada
N/A
  • 84.6% Increase in Organic Keyword Growth
  • 173% YoY Increase in Clicks in One Quarter
  • 13.6% Increase in Monthly Organic Leads
Intero DigitalVisit Website →
Nomadix
SEO
Ecommerce
51-200 Employees
N/A
Woodland Hills, CA
N/A
  • 43.23% increase in e-commerce revenue
  • 29% increase in keywords ranking in the top 10 positions
  • 34.6% organic traffic boost
Classy Closets
SEO
Home Services
51-200 Employees
N/A
Chandler, AZ
N/A
  • 4,500+ first-page rankings
  • 443% increase in first-page rankings
OfficeChairs USA
SEO
Ecommerce
51-200 Employees
N/A
East Providence, RI
N/A
  • 58% increase in revenue from organic traffic
Straight NorthVisit Website →
Figo
SEO
Insurance
51-200 Employees
N/A
Chicago, IL
N/A
  • 2,097% Increase in traffic
Aligned Modern Health
SEO
Chiropractor
51-200 Employees
N/A
Chicago, IL
N/A
  • 53% Increase in sales
EOSYS
SEO
Industrial
51-200 Employees
N/A
Smyrna, TN
N/A
  • 57% Increase in organic leads
Power DigitalVisit Website →
Platform 9
PPC, SEO
SaaS
51-200 Employees
N/A
San Jose, CA
N/A
  • 3x Increase in Page One Google Keywords (15 to 53)
  • 231% Increase in Organic Sessions
  • 227% Increase in New Users
  • 30% Increase in Organic-Assisted Conversions
  • $55 Decrease in CPA MoM
PlushCare
SEO, Content Marketing, Public Relations
Healthcare
51-200 Employees
N/A
San Francisco, CA
N/A
  • 45,400 Additional Keywords Gained
  • 5,214% Increase in Keywords Ranking Positions 1-3
  • 862% Increase in Organic Sessions
  • 32% Campaign ROI
Gardyn
SEO, Content Marketing, Public Relations
Indoor Gardening
51-200 Employees
N/A
Bethesda, MD
N/A
  • 57 Total Media Placements
  • 787MM Total Media Impressions
  • $10M Series A Funding Round Secured
  • 2 Top-Tier Industry Awards Won
SeoProfyVisit Website →
ATAS
SEO
Fintech
51-200 Employees
N/A
Riga, Latvia
N/A
  • 56K additional organic clicks (191K to 247K)
  • 73% CTR increase
  • 51% average ranking position improvement
Dmarket
SEO
Gaming
51-200 Employees
N/A
Kyiv, Ukraine
N/A
  • 40% organic traffic growth in the first year
  • 331 high-quality links built
  • 294% growth in top-3 keyword rankings
FXTM
SEO
Finance
51-200 Employees
N/A
Limassol, Cyprus
N/A
  • 329% traffic growth across 6 priority markets (43.6K to 186.9K monthly)
  • 1,286% keyword visibility growth
  • 43% growth in top-3 keywords
OuterBoxVisit Website →
Cardinal Peak
SEO
Industrial
51-200 Employees
N/A
Lafayette, CO
N/A
  • 167% Increase in Organic Traffic YoY
  • 169% Increase in Organic Goal Conversions YoY
  • 99% Increase in Keyword Rankings
NRS World
SEO
Retail
51-200 Employees
N/A
Decatur, TX
N/A
  • 106% Increase in Organic New Users
  • 145% Increase in Revenue
  • 332% Increase in Keyword Rankings
  • 74% Increase in Organic Search Traffic
A&C Plastics
Web Development, SEO, PPC
Manufacturing
51-200 Employees
N/A
Houston, TX
N/A
  • 1,225% Organic Search Traffic Increase
  • 450% Increase in Organic Online Leads
  • 522% Boost in AdWords Conversions
  • 70% Less Spend per Conversion
  • 345% More Paid Traffic
CB/I DigitalVisit Website →
Bokksu
SEO
Food & Beverage
51-200 Employees
N/A
New York, NY
N/A
  • "japanese snacks" from #9 to #2 (9,900 searches)
  • "japanese subscription box" from #5 to #1 (1,600 searches)
  • Recovered ranking for "Japanese snack box" after a drop
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
Saigon Paper
Web Development, SEO
Manufacturing
51-200 Employees
N/A
Ho Chi Minh City, Vietnam
N/A
  • Organic traffic +60% within 2 months of launch
  • Organic search drove 80% of client inquiries
  • Bilingual Vietnamese and English corporate site
ClickSliceVisit Website →
Holy Clothing
SEO
Fashion
51-200 Employees
N/A
Fallbrook, CA
N/A
  • 86 of 90 tracked keywords ranking #1
  • Organic revenue doubled from $60,000 to $120,000 per quarter
  • 3,000 organic shopping visits in 3 months from Merchant Center optimisation
Queensberry Promotions
SEO
Entertainment
51-200 Employees
N/A
Turnford, United Kingdom
N/A
  • 340,000 organic sessions (Jan-Nov 2025)
  • 5,200 organic clicks to the tickets page in 3 months, double the prior 3 months
  • #1 for "5 v 5 boxing"
Plumbworld
SEO
Home & Garden
51-200 Employees
N/A
Evesham, United Kingdom
N/A
  • 38 keywords ranking #1 within 3 months
  • 80 tracked keywords in the top 3 (up from 30)
Single GrainVisit Website →
Single Grain
SEO
Marketing
51-200 Employees
N/A
Los Angeles, CA
N/A
  • 300% ROI in 9 Months
  • 742 Leads Generated (114 High-Quality MQLs)
  • 1,549 Organic Backlinks Earned
  • 160,000 Impressions Per Day
LS Building Products
SEO, AEO, Technical SEO
Construction
51-200 Employees
N/A
East Peoria, IL
N/A
  • 67% Increase in Organic Traffic
  • 1,400 New Organic Keywords
  • 540% Increase in Google AI Overview Mentions
  • 400% Growth in Organic Traffic Value
LS Building Products
SEO, AEO, Content Marketing
Construction
51-200 Employees
N/A
East Peoria, IL
N/A
  • 400+ New AI Citations in 12 Months
  • 174 More Mentions on Google AI Overviews
  • 113 More Mentions on ChatGPT
  • 6.7K Increase in Organic Traffic Worth $220,000
NoGoodVisit Website →
CheckSammy
PPC, SEO, CRO
Waste Management
51-200 Employees
N/A
Addison, TX
N/A
  • 163% Decrease in B2B Cost Per Lead
  • 158% Increase in B2B Qualified Leads
  • 32% Paid Media Spend Saved Through Optimizations
Payzer
PPC, SEO, CRO, Content Marketing
SaaS
51-200 Employees
N/A
Charlotte, NC
N/A
  • 21% Increase in Sales Qualified Leads
  • 46% Improved Conversion Rate
  • 30% Improved CTR
  • 4% Increase in Organic Sessions MoM
SparkCharge
PPC, SEO, CRO, Web Design
EV Charging
51-200 Employees
N/A
Somerville, MA
N/A
  • 668% Increase in Organic Web Traffic
  • 8.5x Decrease in Website Bounce Rate
  • 87% Conversion Rate
  • 89% Increase in On-Site Engagement
Lounge LizardVisit Website →
Physicians’ Reciprocal Insurers Marketing
Content Marketing, Email Marketing, Influencer Marketing, SEO, Social Media Ads
Insurance
51-200 Employees
N/A
Roslyn, NY
N/A
  • +22% Organic Users
  • +576% Paid Users
  • +11% Direct Users
  • +434% Conversion Rate
  • +498% Conversions
Website Closers
Content Marketing, CRO, Web Design, SEO, Web Development
Finance
51-200 Employees
N/A
Tampa, FL
N/A
  • 8K PPC Conversions in 1 Year
  • 536% Increase in time on-site
  • 4,709 Keywords ranking on Google
NHS Chicago
Branding, Web Development, PPC, Web Design, SEO
Non Profit
51-200 Employees
N/A
Chicago, IL
N/A
  • +56.7% Boost in Organic Search
  • +43.95% Time on Site
  • +51.04% Increase in Page Visits
Australian Internet AdvertisingVisit Website →
LTrent Driving School
SEO, Local SEO, PPC
Education
51-200 Employees
N/A
Sydney, Australia
N/A
  • 168% increase in organic sessions across Sydney suburb pages
  • 73% increase in phone enquiries from Google Maps listings
  • 52% reduction in Google Ads cost per acquisition
  • Page-1 rankings for "driving lessons" in 17 of 19 target suburbs
  • Blog traffic up 210%, with blog booking conversions up 89%
Fanquip
SEO, PPC, Social Media Ads
Manufacturing
51-200 Employees
N/A
Singleton, Australia
N/A
  • 37% improvement in average search position
  • 1.4M annual search impressions
  • Average Google ranking in the top 17
UFO Performance MarketingVisit Website →
IVC Technologies
SEO, Local SEO
Industrial
51-200 Employees
N/A
Lebanon, OH
N/A
  • 2.3x increase in leads in one year
  • 3x increase in sitewide traffic in 2 years
  • 99% of target keywords ranking #1 in Google
Fast Park & Relax
SEO, PPC, Web Development
Travel
51-200 Employees
N/A
Cincinnati, OH
N/A
  • +800% ROAS
  • +201% increase in site traffic
  • +151% increase in ecommerce revenue
TripleDart DigitalVisit Website →
Callbotics.ai
SEO, GEO
AI
51-200 Employees
N/A
Dallas, TX
N/A
  • Organic clicks up 11.5x in 9 months
  • Impressions up roughly 401x monthly
  • LLM referral sessions up 22x in six months
  • Average ranking improved from below page four to the top ten
Signeasy
GEO, SEO, Content Marketing
SaaS
51-200 Employees
N/A
Dallas, TX
N/A
  • LLM traffic +3,650% (about 20 to 750 monthly sessions)
  • 98 leads generated from LLM traffic in 6 months
  • Pages cited in LLMs grew from 3 to 55+
  • Monthly leads from 5-6 to 24 (+300%)
BNP EngageVisit Website →
Sterilex
Web Design, SEO, Content Marketing
Manufacturing
51-200 Employees
N/A
Hunt Valley, MD
N/A
  • Website redesigned for clarity, speed and lead generation
  • Mobile-first architecture with product filtering
  • Schema and structured data for AI-search (AEO) readiness
  • Content rewritten for clarity, authority and conversion
Drummond Scientific
Web Development, PPC, SEO
Manufacturing
51-200 Employees
N/A
Broomall, PA
N/A
  • Website redesigned with a WooCommerce e-commerce store migrated in
  • Google Ads and Shopping campaigns launched from zero
  • Brand guidelines and refresh
  • Ongoing SEO and performance monitoring
CSP AgencyVisit Website →
SierraConstellation Partners
SEO
Consulting
51-200 Employees
N/A
Los Angeles, CA
N/A
  • Total impressions +120% since the campaign start (after a Google update drop)
  • First-page keyword presence more than doubled
  • Top-10 keywords from about 8 to 28
Replicant
SEO, Content Marketing
AI
51-200 Employees
N/A
San Francisco, CA
N/A
  • Goal conversions from 10 to 183 per month (+1,730%)
  • Keywords on page 1 from 20 to 172 (+760% first-page rankings)
  • +345% monthly impressions
  • +94% website clicks from Google
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
Outpace SEOVisit Website →
APG
SEO
Manufacturing
51-200 Employees
N/A
Minneapolis, MN
N/A
  • 511% increase in referring domains (602 to 3,675 in six months)
  • 38% increase in top-10 keyword rankings
  • 26% increase in top-3 keyword rankings
  • 6% increase in organic clicks
Botanical Sciences
SEO, Local SEO
Cannabis
51-200 Employees
N/A
Pooler, GA
N/A
  • 281% increase in top-10 keyword rankings (12 months)
  • 25% year-over-year increase in organic clicks
  • 9,500% growth in AI Overview visibility
BluShark DigitalVisit Website →
Kerri Castellini Trusts and Estates Attorney
SEO, Link Building
Law Firm
51-200 Employees
N/A
Washington, DC
N/A
  • Domain Rating grew from ~0 to ~37 (Ahrefs, 2016 to 2022)
  • Referring domains grew from ~0 to ~580
  • Organic new users grew from ~3,400 to ~10,000 per month at peak (2020 to 2022)
Dayne Phillips Attorney at Law
SEO, Local SEO, Link Building
Law Firm
51-200 Employees
N/A
Columbia, SC
N/A
  • Domain Rating grew from ~0 to ~25 (Ahrefs, 2018 to 2022)
  • Referring domains grew from ~0 to ~420
  • Organic new users grew from ~1,200 to ~4,000 per month (2020 to 2022)
SearchbloomVisit Website →
Nature's Seed
SEO
Agriculture
51-200 Employees
N/A
Lehi, UT
N/A
  • 741% increase in revenue
  • 366% increase in referring pages
  • 300% increase in ecommerce conversion rate
  • 126% increase in referring domains
Easy Climber
SEO
Home Health
51-200 Employees
N/A
Richmond, VA
N/A
  • 238% increase in organic sessions
  • 135% increase in keywords on page 1
  • 125% increase in keywords ranking in top 3
  • 281% increase in referring domains
Funnel Boost MediaVisit Website →
Mike Calvert Toyota
Local SEO, SEO
Automotive
51-200 Employees
N/A
Houston, TX
N/A
  • +22% Increase in Organic Traffic
  • +14% Increase in Phone Call Leads
  • Page 1 keywords: 928 to 1599
  • Average Google position: 39 to 16.8
  • AI Overview citations: 23 to 121
VASC
SEO, CRO, Technical SEO
Vein Care
51-200 Employees
N/A
San Antonio, TX
N/A
  • 184% Increase in Users
  • 213% Increase in Sessions
  • 124% Increase in Conversions
  • 120% Increase in Clicks
  • 15 Page 1 rankings within six months
WpromoteVisit Website →
Erin Condren
PPC, SEO, Content Marketing
Personalized Gifts
51-200 Employees
N/A
Austin, TX
N/A
  • 25% lower CPA
  • CPA equal to 10% of predicted 12-month customer spend
  • 35% increase in organic traffic
Travelpro
SEO, Technical SEO, Content Marketing
Travel
51-200 Employees
N/A
Boca Raton, FL
N/A
  • +154% SERP Feature Appearances YoY
  • +23% Organic Revenue YoY
  • +15% Organic Impressions YoY
Optimum7Visit Website →
MTPoolDistributors.com
SEO
Industrial
51-200 Employees
N/A
Miami, FL
N/A
  • Recovered from a 65% organic traffic loss
  • 300% revenue increase
Garrett.com
SEO
Retail
51-200 Employees
N/A
Garland, TX
N/A
  • Organic footprint expanded by 100%+ in six months
  • Recovered lost authority after a site migration
Fasteners Direct
SEO, Web Design
Industrial
51-200 Employees
N/A
Webster, NY
N/A
  • Doubled page-one rankings through migration and SEO
Impressive Digital AgencyVisit Website →
Kudosity
SEO
SaaS
51-200 Employees
N/A
Sydney, Australia
N/A
  • +40% non-brand clicks year on year
  • +370% ChatGPT traffic
  • +590% ChatGPT-driven conversions
  • 11 sites consolidated into 1 while holding rankings
Acer Australia
SEO, PPC
Consumer Electronics
51-200 Employees
N/A
N/A
N/A
  • +159% online revenue in five months
  • +84% traffic
  • +23% conversion rate
  • 10x revenue in September 2020 vs September 2019
LinkDoctorVisit Website →
Industrial Defender
SEO
Cyber Security
51-200 Employees
N/A
Foxborough, MA
N/A
  • 562% increase in organic keywords
  • 577% increase in organic traffic
  • Domain Rating from 37 to 42
Muzigal
SEO, Content Marketing
Education
51-200 Employees
N/A
N/A
N/A
  • 600% increase in organic keywords
  • 193% increase in organic traffic
  • Domain Rating from 15 to 37
Search BergVisit Website →
Nanda & Associate Lawyers
SEO, Content Marketing, Email Marketing
Law Firm
51-200 Employees
N/A
Mississauga, Canada
N/A
  • 122.4% increase in organic traffic (12,700+ per month)
  • 300% increase in conversions
  • 45,000+ new site users
3Alpha LLC
SEO, Content Marketing, Web Development
Professional Services
51-200 Employees
N/A
Duluth, GA
N/A
  • 76% increase in new visitors
  • 3.36K impressions in 30 days
Black PropellerVisit Website →
CUBE84
PPC, Social Media Ads, SEO
Consulting
51-200 Employees
N/A
Arlington, VA
N/A
  • 400% increase in lead volume within 6 months
  • 100% increase in lead volume by month four without increasing budget
  • 50% increase in lead volume and quality in two months
Piedmont Door Solutions
PPC, Ad Creative, SEO
Home Services
51-200 Employees
N/A
Charlotte, NC
N/A
  • Conversion rate up from 5.94% to 10.40% (+74%)
  • 99.85% statistical significance

Find the best SEO agencies for your business size