Best SEO Agencies (2026) – Ranked by Case Studies
Fit Club New York Client-verified
- +2,846% organic traffic
- +567% ranked keywords (645 to 4,301)
- +278% page-one rankings (40 to 151, Jan 2021 to June 2025)
- +269% organic traffic
- +48% page-one rankings (23 to 34)
- +164% ranked keywords (335 to 885, Jan 2018 to Dec 2023)
- +657% organic traffic
- +300% page-one rankings
- +432% ranked keywords
Robinson Law Client-verified
- Form fills +210% in 6 months
- Qualified calls from 76 to 207
- Paid search and cross-network new users from 211 to 852
- Google LSA calls from 60 to 138
- Phone call conversions +25% (240 in the Services campaign)
- Cost per conversion -19% to $4.35
- Total ad spend -16.5%
- Organic traffic +19% (May 2024 vs. April 2024)
- Conversions +262% to 264
- Phone calls to 370
- New users +35% (5.33K) and views +30% (9.59K)
- Cost per conversion -3% to $17.57
The Oaks Plastic Surgery Client-verified
- 1,066% ROI: $740,400 in online revenue from a $63,500 SEO budget
- Organic visits up from 35 to 1,397 per month for a brand-new practice
- 40 new keywords in the top 3 and 167 in the top 10
- Leads up from 0 to 15 conversions per month
- Online market share up from 0% to 8.81%
- 1,266% ROI: $319,050 in online revenue from a $23,350 SEO budget
- Online orders up from 38 to 344 per month
- Organic visits up from 1,517 to 3,073 per month
- Online market share up from 13.37% to 44.21%
- 24 new keywords in the top 3 and 28 in the top 10
- 2,577% ROI: $862,065 in online revenue from a $32,206 SEO budget
- Organic visits up from 20 to 1,370 per month
- Leads up from 14 to 110 calls and 0 to 7 web forms per month
- Online market share up from 4.80% to 78.80%
- 39 new keywords in the top 3 and 33 in the top 10
Dean McGee Eye Institute Client-verified
- 245% increase in Instagram followers
- 3X higher search ad CTR than industry average
- 46% increase in blog page views
- 112 leads in first month of search ads campaign
- 11% website lead conversion rate
- 801 leads from SEO in one year
- 50 Contacts in 2 Months
- 96% Reduction in Cost Per Lead
- 7K Clicks on Facebook Ads in 2 Months
CentralStar Cooperative Client-verified
- Online sales up 83.2% (Jan-Jun 2024 vs. the previous period)
- Online orders up 100.9%
- Organic search up 54.9%
- Session events up 66.6%
- Total users up 53.7%
- Engaged sessions up 45.6%
- Session events up 41.9%
- Organic search up 44.1%
- New users up 505% in one month
- Organic search traffic up 809.6%
- Engaged sessions up 681.2%
- Event count up 713.5%
Container Exchanger Client-verified
- 233.24% increase in organic revenue
- 18.52% increase in leads
- 18% conversion growth
- $100M+ lifetime sales
- Magento 2 + ReactJS rebuild handling 10,000+ daily visitors
- 63% more orders
- 179% increase in traffic
- 30,000+ SKUs supported
Wafer World Client-verified
- 140,538 impressions
- 180 ranking keywords
- 6,966 clicks to the site
- +1,251% organic clicks
- 932 organic clicks
- Average search position 26.0
- +104.1% tracked conversions
- 1,644 organic sessions
- 298 tracked conversions
CTDI Client-verified
- Redesigned website on modern web technologies
- Streamlined navigation and faster page loads
- Updated digital branding
- Content calendar and social content highlighting culture
- Paid ad campaigns built around target audiences
- Meta data and heading tags optimized
- HubSpot templates built with training and support
- 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
Jeeva Clinical Trials Client-verified
- 4X increase in organic search visibility
- 40% increase in website engagement rate
- 10%+ monthly increase in social followers
- 50+ high-intent keywords on page 1
- 2X increase in organic traffic in 3 months
- 52% increase in transactions from organic
- 38% quarterly organic revenue increase
- 25% quarterly increase in new organic users
- 75%+ of target keywords on page 1 within 6 months (phase 2)
- 20% average quarterly increase in organic traffic
- 17% average quarterly increase in organic revenue
COBS Bread Client-verified
- 40% decrease in cost per franchise lead
- 32% increase in website traffic
- 10% increase in promotional product sales
- 200% increase in organic SEO traffic
- 78% increase in website conversions
- 400+ videos optimized for YouTube
- 16,000+ qualified leads
- 3.4M impressions across the U.S. and Canada
- 5% conversion rate on the main product line
Island Inn Client-verified
- Direct website bookings up 13% year over year
- 36% rise in contact form submissions
- 20% reduction in cost per acquisition
- 5% increase in organic traffic
- Bounce rate down 88%
- Average time on site up 49% and pages per session up 57%
- 400+ "Not Found" errors cut 90%
- 500 server errors cut 99%
- Organic traffic up 83% year over year within four months
- Organic revenue up 122% with no product or pricing changes
- Organic outpaced other channels by 25%+ in sessions, revenue and AOV
Joe & Bella Client-verified
- 507% increase in page one keywords
- 328% increase in top-3 keyword rankings
- 14,731 keyword position improvements
- 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
- 142% increase in non-branded clicks
- 66% increase in high-quality referring domains
StoneX Client-verified
- Thousands of pages redirected in a WordPress to HubSpot migration without losing search authority
- 244% growth in organic traffic
- 69% of traffic now organic (up from 33%)
- Monthly blog views from 720 to 5,600
- 400% increase in monthly visitors (10K to 50K)
- 323% increase in average time on page
Taco Bar Catering Client-verified
- Conversions and year-over-year revenue +250%
- Online orders and phone calls +85%
- 7,225+ items sold and 315+ online orders
- $105,700+ revenue generated by SEO
- Listed in the local 3-pack
- Conversions up 6x
- Ranked #1 in Orange County, within the top 3 results
- 33,000+ visits
- 458+ passes sold
- $747K+ revenue generated by SEO
- Conversions up 7x
- Year-over-year revenue +350%
- 35,150+ visits
- 458+ memberships
- $1.37M+ revenue generated by SEO
Level Nine Sports Client-verified
- Migrated from Magento 1.0 to headless BigCommerce
- Revenue and conversion rate up, bounce rate down
- Resolved recurring outages and TLS payment risk
- 12% improvement in organic click-through rate
- 18.7% improvement in SERP rankings for key terms
- 326.7% improvement in mobile Core Web Vitals (144.7% desktop)
- 46% faster mobile page load (72.7% desktop)
- 40% increase in overall revenue
- 45% increase in average order value
- 49% increase in search engine rankings
- 15% increase in overall sessions
Recreations Outlet Client-verified
- 103% Shopify revenue growth to $1.08M
- $211K per year in Play Pass and birthday sales online
- 309% email marketing revenue growth
- 16.09x Google Ads ROAS
- 542 Google AI Overview citations (from 1)
- 108% growth in total impressions
- 142% CTR improvement
- 25-30% ROAS increase
- 106% organic revenue growth in 6 months
- 50% increase in top-3 keyword rankings
- 55.7K backlinks acquired
- $367K conversion value added
John H. Fisher, P.C. Client-verified
- Domain Rating grew from ~22 to ~36 (Ahrefs, Nov 2017 to mid-2022)
- Referring domains grew from ~110 to ~520
- Monthly leads grew from ~25 (2020) to ~110 (2022)
- 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)
- Domain Rating grew from ~23 to ~31 (Ahrefs, 2020 to 2022)
- Referring domains grew from ~150 to ~400
- Organic leads grew from ~90 to ~590 per month (2020 to 2022)
Elite Med Spa Client-verified
- Organic traffic +160%
- Paid search leads +31%
- Paid-generated customers +45%
- Organic traffic +364%
- Organic search leads +160%
- Customers generated +45%
- Organic traffic +74%
- Paid search leads +40%
- Paid-generated customers +45%
- Product-level keyword targeting plus Facebook ads to win new customers
Krista Software Client-verified
- 43 media placements including Forbes and Fortune
- 37 inbound links to the survey report
- Domain rating increase within the first 30 days
- 13 placements across top industry trade outlets
- 22.5M total audience size
- 20 inbound links to the survey post
- 35 syndicated articles
- 109 media placements including Axios, Bankrate and Nasdaq
- 209.42M audience size
- 46 inbound links
- 1,200+ website visits
Sunshine Supply Client-verified
- 46% traffic increase
- Average search positions reduced by 30%
- 47:1 ROI on the SEO program
- 31% increase in organic traffic
- 27% increase in search results clicks
- 40% improvement in website traffic
- 25% of website traffic coming from the blog
- 10% boost in conversion rates
Silva Injury Law Client-verified
- 85% increase in organic traffic
- 79% increase in form leads
- 60% increase in case sign-ups
- 9,900 organic search traffic per month
- 215+ leads per month
- 900+ 1st page rankings on Google
- 20+ leads per month from organic search
- 1.5K organic traffic visits per month
- Top 3 Google rankings for hundreds of relevant keywords
Southwest Chiropractic Client-verified
- 980% increase in website phone calls and forms
- 74% increase in organic website traffic
- 400+ calls per month directly from Google Maps
- 900+ calls or forms submitted from the PPC campaign
- 280% increase in organic website traffic
- 212% increase in calls per month directly from Google Maps
- 163% increase in conversions with a new website
- 212% increase in organic traffic
- 131% increase in Google Maps phone calls
Cafe Gianni Client-verified
- 100% of wine dinners and cooking classes sell out
- Organic social reach up 98% and page likes up 92%
- Catering and large party bookings up 82.5%
- 36.9% additional revenue from online orders
- Page 1 for "Italian restaurant Mount Dora" and "best Italian restaurants in Lake County"
- Named to Yelp's top 10 barber shops in Rochester Hills
- New customers up 40% each month
- 82% increase in sales
- 189% increase in sales
- 345% increase in phone inquiries
- 64% increase in social media inquiries
- 1,300 average organic reach per day
Inspire Pottery Client-verified
- 105.64% increase in organic search sessions (YoY)
- 95.12% increase in engaged organic sessions
- 84.65% increase in engaged sessions
- Total traffic more than doubled
- 138% increase in impressions in eight months
- ~89% growth in clicks
- 47% improvement in average search position
- Daily clicks from ~15 to ~35 in six months
- Daily impressions from ~1,200 to ~2,800
- ~133% growth in clicks and impressions
RUX Client-verified
- 5M+ paid ad impressions
- 105K+ website page views
- 44% growth in organic traffic
- 300% increase in website leads
- 350% increase in web traffic
- 333% increase in organic search traffic
- 45X increase in organic search traffic
- 1,250+ website leads generated
- 270% increase in website traffic
Coastal Contracting Client-verified
- 165% more leads than expected
- 21% lower cost per lead than predicted
- 20% lead conversion rate, 6x the 3.37% industry average
- Over 2.5x as many new customers at a 23% close rate
- 336% more leads than predicted, even on a reduced budget
- 71% lower cost per lead than expected
- 24% lead conversion rate, over 4x the 3.37% industry average
- 20-50% more new clients per month from website search traffic
- 66% increase in hardscape installations, from 12 to 20 jobs in a year
- 294% more leads than predicted from search
- Average 25% lead conversion rate, over 6x the 3.37% industry average
- PPC cost per lead 63% below projections
- About 4x as many new customers as projected at a 50% close rate
VLK Architects Client-verified
- Average combined rank improved from #82 to #27 (+203%)
- Impressions +159% (4,700 to 12,180) in 3 months
- Impressions +47% (53K to 78K) in 3 months
- Average position improved from #34 to #29 (+17%)
- Multiple featured snippets won for key search terms
- Visibility doubled from 20% to 40% in 3 months
- Keywords grew from 1,264 to 1,793 (+41%)
- Multiple featured snippets within the first 30 days
King Law Offices Client-verified
- 34% increase in organic client acquisition in 3 months
- $130K in additional monthly revenue within 3 months
- 26K top-ranking keywords across search engines and AI
- Revenue from the first 3 months more than covered annual marketing fees
- Ranked keywords up from 20 to 528 in 10 months (+2,540%)
- 18 #1 rankings, 15 of them previously outside the top 100
- Organic traffic up 468% year over year
- 351 SERP features by November 2025, including featured snippets and local packs
- Organic sessions up from 176 to 710 in August-November, year over year
- 104% increase in search-driven clicks over two years
- 145% increase in online visibility over two years
- Consistently top 3 in the Google Map Pack
- Revenue more than covered the annual marketing investment
Fetch Pet Insurance Client-verified
- 56% increase in new policy sales
- 400% increase in paid social sales
- 42% decrease in cost per sale
- 64% decrease in cost per sale for non-brand paid search
- 80% increase in "HSA" keyword ranking
- "HSA" keyword ranking moved #5 to #1 in SERPs
- 83% increase in "HSA" keyword CTR
- 253% increase in search visibility
- 20% increase in qualified leads
- 28% decrease in cost per qualified lead
Sun and Earth Construction Client-verified
- 31% increase in organic clicks in three months
- 35% increase in impressions
- Organic ranking up 300%+
- Google Ads conversions up 48.57% and cost per click down 67.50%
- Organic clicks up 50% and impressions up 105% over 12 months
- Organic clicks up 337% and impressions up 486% over 16 months
- Google Ads conversions up 61.04% while costs fell 37.39%
- Google Ads conversion rate up 211.33%
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