Best SEO Agencies in the United States (2026) – Ranked by Case Studies
- 2022 to 2023: sessions up 29%, blog pageviews up 67%, search impressions up 116%
- Since 2020: sessions up 103%, blog pageviews up 407%, lead generation up 47%
- Search impressions up 418% and average search position improved 77%
- 170 average monthly citations in AI search
- 64% increase in website traffic and 71% increase in organic traffic
- 90% increase in email sessions, with a 24% open rate and 1,170 influenced contacts
- Social media: 564% increase in clicks and 171% increase in sessions to the site
- HOA email campaign converted at 17%
- A single email generated 3 new paving projects
- 357 new form submissions for content downloads
- 82% increase in organic traffic
- 86% increase in time on page
- 31% increase in keyword ranking and 20% average content conversion rate
- 41.1% Increase in Organic Sessions
- 43.2% Increase in Organic Leads
- #1 Rankings for Focus Keywords
- 200+ Keywords Ranking in Position 1
- 37% YoY Increase in Site Traffic
- 23% YoY Increase in Revenue
- 12,000+ New Sessions in First Month
- 67% Increase in Average Organic Traffic (US)
- 234% Increase in Ranking Keywords (US)
- 212% Increase in Keywords Ranking Positions 1-3 (US)
- Organic impressions up 31.66% in 30 days, from 120K to 158K
- Clicks up 18.71%, from 545 to 647
- Ahrefs site health score raised from 76 to 100
- Average position improved from 28.3 to 22.1
- Page load speed improved 45%, from 3.2s to 1.8s
- 102% growth in total impressions, from 8.87M to 17.8M
- 10.9% increase in total clicks, from 101K to 112K
- Average position improved 29%, from 17.4 to 12.3
- 933 Google AI Overview citations
- 3,500+ total form submissions
- 10,000+ monthly organic visitors in 12 months, up from under 800
- 22 new patients a month from organic search, up from 3
- 68% reduction in patient acquisition costs
- 325% increase in non-branded organic traffic
- 14.5% visitor-to-consultation rate vs. a 3.2% industry average
- 94% YoY increase in engagement time
- 29% YoY increase in engaged sessions
- 14% decrease in bounce rate
- 22% more pages per session
- 10% increase in form submitters
- 23% increase in sessions in the first month
- 194% YoY increase in impressions
- 170% YoY increase in non-branded impressions
- 184% month-over-month increase in organic event rate
- 50+ localized websites launched simultaneously
- 21% increase in organic traffic within 90 days
- 134% increase in organic keywords in the first five pages
- 23% increase in first-page keyword rankings
- 2,400% increase in consulting sales meetings (Q1 2026)
- 111% increase in qualified deal creation (Q1 2026)
- 100% increase in Google Ad Grant budget utilization
- LinkedIn campaigns reached 6,900 law enforcement agencies in Q1 2026
- 777,000 organic sessions in 2025
- 555% increase in top 10 keyword rankings since 2018
- 342% increase in total keywords since 2018
- 160% increase in online appointment requests since 2020
- 88% increase in new subscribers
- 112% increase in online giving
- 48% increase in first-time donors
- Monthly leads 80 → 140
- Keyword rankings 2,515 → 8,941
- Monthly traffic 3,274 → 9,318
- Keyword rankings 1 → 6,165
- Organic traffic 1 → 2,996 visits/mo
- Traffic value $1 → $4,292/mo
- 1,659% more new visitors from organic search
- Keyword rankings 167 → 1,055
- Monthly traffic 2,589 → 10,856
- Monthly lead volume 29 → 50+
- Units Sold +3,580%
- Amazon Keywords Ranked +1,964%
- $ Value of Sales +1,749%
- Organic Keywords +45x
- Organic Traffic +117%
- Page 1 Ranking Keywords +22%
- Quality Leads +20%
- First Page Rankings +2,894%
- Cost Per Lead -61%
- Overall revenue up 13%
- Organic traffic up 65%
- 5.5x organic keyword growth
- 110% increase in AI visibility
- AI visibility up 340%
- Organic keyword growth of 140%
- Organic sessions up 37%+ in the first 12 days after launch
- Bounce rate down 25%
- Pages per session and session duration up 26%+
- Lighthouse scores of 100 (best practices), 98 (accessibility), 93 (SEO)
- Total contact form fills up 172% (Q1 2021 vs. Q1 2020)
- Organic contact form fills up 78%
- Paid conversions up 184% and cost per conversion down 50%
- New users from paid media up 500%
- Organic sessions to four main solutions pages up 67%
- Paid transactions up 60% and paid revenue up 90% year over year after three months
- Organic sessions and revenue nearly doubled year over year after three months
- Organic monthly blog sessions doubled in seven months
- Ranks #2 on Google for "bidet"
- +63% impressions across paid channels YoY
- 31M video views from TikTok campaign in 90 days
- 548,000 new users to elfcosmetics.com in 90 days
- 300% increase in Share of Voice on Facebook
- +38% increase in orders on elfcosmetics.com
- 130% increase in ad impressions
- 84% increase in ad revenue
- 71% increase in ROAS
- 55% increase in conversion rate (CVR)
- 10% decrease in cost-per-click (CPC)
- 22% visibility score from 180+ high-intent AI prompts
- $22.7K revenue from AI sessions YTD
- 3X visibility score vs nearest competitor
- +71% increase in AI referral traffic (vs prior 90 days)
- 40% growth in SEO organic traffic
- 30% increase in lead conversion
- Sales cycle shortened by 23 days
- $7M in marketing-influenced pipeline
- 5X monthly users
- 15X monthly sessions
- 4.5X page views
- 27% reduction in bounce rate
- 614% increase in website traffic
- 266% increase in pipeline
- 489% increase in pageviews
- 160% increase in organic search sessions
- Organic traffic +30%
- Conversion rate +30%
- SEO e-commerce sales +61% year over year
- $25M in revenue driven by organic search
- 1,200+ store locations cleaned up and managed
- Bob Dylan Center site replatformed from Craft CMS to multisite WordPress
- Both museum sites managed in a single CMS
- Tessitura ticketing and membership integrated
- Distinct brand experiences for the Bob Dylan Center and Woody Guthrie Center
- Sales tax revenue +46%
- $12.98M sales tax revenue in 2024 alone
- $1.9B economic impact in 2023 alone
- Gold MarCom Award for Tourism Website
- Two audience-first websites for visitors and investors
- 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
- Organic search sessions +13% to 194,000
- Social media users +311% in one month
- Google My Business clicks +22% YoY
- Client since 2018
- Delivered Website Design, Digital Marketing and SEO
- Delivered Website Design & Development and SEO
- Delivered Content Writing, Website Design and SEO
- 3X growth in ecommerce sales
- Products previously invisible on Google now found
- Strong revenue impact from SEO through new customer acquisition
- 131% increase in organic purchases YoY
- 10x growth in keywords triggering AI Overviews
- 45% increase in web order value YoY
- Record-breaking revenue month
- 28 earned media placements in six weeks
- 17 syndications from the debut announcement
- Backlinks up 96%, from 401 to 784
- 419 referring websites
- 45+ unique stories across 40+ publications in under 6 months
- First Forbes feature within 7 weeks of onboarding
- Backlinks nearly doubled, from 14K to 27K
- Domain rating up from 63 to 69 (March to August 2026)
- Bond announcement drew 8 pieces of coverage in 24 hours
- 50 approved media placements over 5 months
- 6.7M total views across earned media and syndications
- Domain Rating of 69
- 26,000 backlinks from 2,700 referring websites
- Sales revenue up 93% in the first year
- Keyword growth up 702%
- Sessions up 161x
- Traffic from customers up 337% in the Portland, OR metro
- 44% more orders fulfilled in the last 12 months
- Organic traffic up 3,080% (30x) in the first year
- Organic new users up 10x
- Expanded reach up 2,483%
- New customers up 1,298%
- Top 3 keywords up 875%
- 300+ estimate requests from Google Ads in the first year
- Conversion rate of 12% (10% to 15% after landing page and form changes)
- 3,000+ visits from ads and 6% click-through rate
- Ranking keywords grew from about 400 to 2,009 (+402%)
- Google Tag Manager implemented across 50+ domains
- Custom Google Analytics dashboard created
- SEO audits and Kentico upgrade
- 113% increase in session duration
- 76% decrease in bounce rate
- 21% increase in organic traffic
- WordPress site built with an EventBrite calendar integration
- Accessibility and ease of use prioritized
- SEO and enhancements supported since 2017
- #2 ranking for "Electric Vehicle Dealer Near Me"
- 57,738 impressions in July alone
- Improved local rankings for "Oil Change Pittsburgh PA"
- Organic mobile traffic up from 57,339 (2017) to 104,186 (2019)
- Call-only ads cost $129.67 less per click than standard expanded search ads
- Placed in Google AI Overviews within days of publishing one blog post
- 12 keywords on page 1 of Google after 6 months
- 736% increase in organic traffic over 2 years
- 1,000% increase in organic keyword rankings
- 132% average increase in web actions
- 163% increase in keywords ranked (580+ total)
- #1 among competitors
- Referring domains grew from 76 to 195
- 76% increase in new visitors
- 3.36K impressions in 30 days
- 94% Single-Year Growth in Organic Traffic
- 48% Increase in Organic Revenue
- 1M New Shoppers Through Organic Search
- 110% Increase in Revenue
- 59% Increase in New Users
- 32% Increase in Organic Sessions
- 113% increase in revenue in two months
- 66% increase in organic users
- 19.5% increase in ecommerce conversion rate
- 109% increase in transactions from organic visitors
- 1122% increase in conversions
- 87% increase in organic sessions
- 1400% increase in top 3 ranking keywords
- 108 More Keywords Ranked by Google
- 155+ Google Position Change
- 17K More Visits Within Six Months
- 300M+ Press Reach Converted Into Demand Generation
- 1.27% Qualified Lead Conversion Rate (Organic Social)
- #1 Search Result for "Robotic Put Wall"
- 72 New Qualified Leads Generated
- 12x the search visibility of competitors in the first three months
- Average Google search position improved by 27 spots
- Organic search traffic +27%
- Instagram impressions +20,400% and engagements +48,300%
- Instagram followers more than doubled
- Search visibility (organic impressions) +88% over 12 months
- AI visibility +120%
- 15 new keywords ranking in Google
- 45K+ impressions on the new location pages
- 42.5% of all users came from organic search
- Website visits of 50K per quarter
- SEO traffic +800%
- 70% of traffic organic from SEO and GEO
- Average time on site 2m 55s (+5%)
- Spa and elopement package interest and bookings up
- Top 10 organically trafficked tourism website in the US
- Site traffic exceeded 9 million visits within a year
- Organic traffic +32%
- Constituent business leads +25%
- 200+ landing pages and 750+ original stories
- Organic traffic from 22K to 68K per month (209% growth)
- 400% more quality leads
- 140% mid-season monthly clicks increase
- 1,300% growth in qualified leads
- 645% organic traffic growth
- 940% increase in top-10 keyword rankings
- Organic Google search traffic +419% vs. the prior eight months
- Organic traffic grew from ~50 visitors per week to 6x in under six months
- Direct sales surpassed distributor sales by the start of month five
- Organic traffic doubled about every six weeks from Oct 2017 to Mar 2018
- Several money keywords ranked on page one of Google and Bing
- Target phrases moved from page two or three to page one of Google
- Began appearing in the Google local 3-pack for fitness club terms
- 600+ total leads over 3 years
- Peak of 35 leads per month from SEO and PPC combined
- 20+ leads in the first month
- Thousands of new organic visitors within two months of launch
- Nearly a dozen qualified inbound leads with no paid efforts
- Blog content drove revenue and traffic growth within 9-12 months
- Posts kept bringing new traffic months after publishing
- Organic impressions up from 20,000 to 55,000 per month
- 63% YoY growth in organic traffic
- 54% YoY increase in organic traffic
- 25% YoY growth in organic revenue
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