OpenServed

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

KCS Building Group Client-verified
Web Design, SEO, CRO
Construction
11-50 Employees
N/A
Columbia, TN
N/A
  • New website, messaging and design
  • Conversion-driven service page copywriting
  • Always-visible phone number and contact form
  • SEO baselines
CloudSmart IT Client-verified
Web Design, Web Development, SEO
MSP
N/A
N/A
Tennessee, United States
N/A
  • New website showcasing IT services and elevating the brand
  • A page for each IT service with calls to action
  • Blog for news, insights and tech tips
  • SEO campaign
SEO
Coaching
N/A
N/A
Nashville, TN
N/A
  • Six-month SEO campaign to raise rankings, authority and organic sessions
  • Keyword research, on-site, technical and off-site SEO
  • Core Web Vitals and site speed optimization
  • Reach expanded from Nashville to the US for the online coaching program
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
Helpshift Client-verified
PPC, SEO, GEO
SaaS
201-500 Employees
N/A
San Francisco, CA
N/A
  • 16x pipeline influence and 5x ROAS over 24 months
  • Brand awareness among the ICP +80%
  • $700K pipeline influenced via ABM
  • Opportunities created +26%
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
SEO, PPC, CRO
Healthcare
11-50 Employees
N/A
Louisville, KY
N/A
  • 98 verified qualified leads a month after 20 months, up from 44
  • SEO alone drives 80 qualified leads a month at $11.25 each
  • Overall cost per qualified lead down from $209 to $34
Web Design, SEO, Local SEO
Healthcare
11-50 Employees
N/A
Aurora, CO
N/A
  • Page 1 Google keywords up from 6 to 20+
  • 49 verified SEO leads a month at $18 each, down from $560 per qualified lead
SEO, PPC
Healthcare
N/A
N/A
Aurora, CO
N/A
  • Cost per new patient cut 76%, from $177 to $43
  • Verified new patients up 77%, from 39 to 69 a month
  • Google reviews up from under 100 to 849 at 4.8 stars
  • Ranking #1 for "family dentist aurora"
Inspire Kids Montessori Client-verified
Web Design, SEO, Social Media Ads
Education
11-50 Employees
N/A
Phoenix, AZ
N/A
  • 50+ leads per month and 150 enrollments in under 12 months
  • About 300 leads and 93 enrollments within 90 days
  • Organic traffic up 240% with 3,300 new organic users
  • Page ranking up 260+ spots and click-through rate up 28.9%
First Family Insurance Client-verified
Social Media Ads, PPC, SEO
Insurance
11-50 Employees
N/A
Coral Springs, FL
N/A
  • 1,000+ leads per month after a year, at a 30% landing page conversion rate
  • 80% contact rate
  • Average cost per lead of $12, down from $26 in the first months
SEO, PPC
Law Firm
N/A
N/A
Redding, CA
N/A
  • 192 PPC leads, with a 53% conversion rate and 95% from live phone calls
  • Cost per lead cut from $172.50 to $128.64 in three months
  • 220% increase in organic traffic
Cutting Edge Countertops Client-verified
PPC, SEO
Manufacturing
51-200 Employees
N/A
Perrysburg, OH
N/A
  • Conversions +24% by February, +40% by March and +25% in April
  • 44,185 organic sessions and 18,143 paid search sessions
  • 195K overall web sessions
  • Average CTR 5.03%
Firenza Stone Client-verified
Web Design, SEO, PPC
Retail
11-50 Employees
N/A
Eastlake, OH
N/A
  • Clicks +1,027.4%
  • Website conversion rate +651.3%
  • Organic traffic +105%
  • Average 135 leads a month
  • Cost per click -14.4%
PPC, SEO
Retail
N/A
N/A
Islamorada, FL
N/A
  • Conversions +100%
  • Organic traffic +100%
  • User engagement +100%
  • Google and YouTube ads within a 30-mile radius
Local SEO, SEO, Content Marketing
Senior Care
N/A
N/A
The Villages, FL
N/A
  • Organic sessions +5,296% since August 2023
  • New users +5,301%
  • Engagement time +36.72%
  • Traffic grew more than 35-fold from the baseline
Web Design, SEO, Local SEO
Moving
N/A
N/A
Elk Grove Village, IL
N/A
  • Brand-new mobile-friendly website
  • Improved keyword rankings, organic traffic and conversions since 2018
SEO, Web Design
Media & Broadcasting
N/A
N/A
Chicago, IL
N/A
  • New responsive site with drop-down navigation and embedded videos
  • Pages optimized for search
La Diosa Client-verified
Local SEO, SEO
Restaurant
N/A
N/A
Miami Lakes, FL
N/A
  • Miami Lakes profile visibility up 63% and high-value keyword results up 69%
  • Calle 8 profile visibility up 30% and high-value keyword results up 35%
  • #1 in Google Map Pack for "Mexican food" and "tacos" across two locations
  • #1 organic ranking for "Mexican restaurant near me" and "taco Tuesday"
  • Helped triple revenue through organic SEO, Map Pack marketing and website automations
Spencer Couture Client-verified
Local SEO, SEO
Arts & Entertainment
11-50 Employees
N/A
Las Vegas, NV
N/A
  • Google Business profile visibility up 290% and keyword search results up 581% year over year
  • Top 2 in the Google Map Pack for "Las Vegas Art Gallery"
SEO, Branding
Retail
N/A
N/A
Washington, DC
N/A
  • Organic traffic up 91% in 9 months
  • 3,000+ ranked keywords in 9 months
  • #1 for "How to Get Weed in DC"
PPC, SEO
Construction
51-200 Employees
N/A
Clearwater, FL
N/A
  • Google Ads impressions up 2,176% to 2.16M, 2021 to 2022
  • Ad clicks up 78%, to 15,225
  • Ad conversions up 120%, to 2,393
  • Cost per acquisition down 39% and cost per click down 25%
  • Earlier SEO work drove 658% more website traffic
PPC, SEO, Local SEO
Finance
N/A
N/A
Tampa, FL
N/A
  • Google Ads impressions up 42% and clicks up 60% year over year
  • 1,448 conversions, up 21% year over year
  • 127% increase in Google rankings year over year
  • 239K users from SEO, up 26% year over year
  • Call clicks up 95% and direction requests up 138% year over year
SEO
E-commerce
N/A
N/A
Clearwater, FL
N/A
  • 299% increase in total sales vs. the previous three months
  • 163% increase in organic sessions, to 37K+
  • 222% increase in total conversions, to 980
  • 46% increase in average order value
  • 144K total sessions, up 85%
KT Tape Client-verified
Social Media Ads, Content Marketing, SEO
Sporting Goods
51-200 Employees
N/A
American Fork, UT
N/A
  • Social media following growth for a kinesiology tape brand
  • Live streaming and brand partnerships
  • Video production
Plasticity Brain Centers Client-verified
Web Design, SEO, PPC
Healthcare
N/A
N/A
Florida, United States
N/A
  • Website design and development for a neurorehabilitation center
  • Infographics and video production
  • SEO, PPC and social media marketing
SEO, PPC, Email Marketing
Automotive
N/A
N/A
Clinton, NJ
N/A
  • More website traffic for a Toyota dealership
  • SEO and pay-per-click campaigns
  • Newsletter design and distribution
Warren Law Firm Client-verified
SEO, PPC
Law Firm
N/A
N/A
San Francisco, CA
N/A
  • Revenue tripled, from $650K in 2021 to $1.9M in 2023 (21 months)
  • Google PPC returned up to 9X ROI on ad spend
  • 1,730 PPC conversions from January to August 2023
  • 474% increase in SEO keywords
  • Monthly organic traffic up from 69 to 4,200 visitors
Din Law Group Client-verified
SEO, PPC, GEO
Law Firm
N/A
N/A
Irving, TX
N/A
  • Organic traffic up 12.6X, from 74 to 933+ monthly visits
  • Ranking keywords up from 60 to 2,200
  • Backlinks up from 111 to 1,098
  • 2,795 paid search leads from calls and forms
  • Active caseload doubled
SEO, PPC, Content Marketing
Law Firm
N/A
N/A
Dallas, TX
N/A
  • Website traffic up 590% and conversions up 245%
  • Spanish-language video got 151% more impressions than English at 68% lower cost
  • Spanish video relevancy score 5x the English video's
Blind & Sons, Inc. Client-verified
SEO, PPC
Home Services
51-200 Employees
N/A
Barberton, OH
N/A
  • 54% increase in leads from SEO
  • 252% increase in leads from PPC
  • 194% total lead increase from digital marketing
Web Design, SEO, PPC
Home Services
51-200 Employees
N/A
Phoenix, AZ
N/A
  • Grew from a $13M business to $30M (2020 to 2023)
  • $34M+ revenue generated from digital marketing in four years
  • Digital marketing accounted for 50%+ of company revenue over four years
Lea Black Beauty Client-verified
Email Marketing, PPC, SEO, Social Media Ads, Web Design, Web Development
Beauty
1-10 Employees
N/A
Miami, FL
N/A
  • 28% Increase in User Engagement
  • 335.5% Increase in Organic Revenue
  • 4.9% Increase in Instagram Followers
  • 28% Increase in Facebook New Page Likes
  • 23.5% Increase in Followers Reached on Instagram
SEO
Furniture
1-10 Employees
N/A
La Conner, WA
N/A
  • 23.82% Increase in Organic Sessions
  • 127.44% Increase
  • $1,638.98
SEO
Consumer Electronics
51-200 Employees
N/A
Fullerton, CA
N/A
  • 32.27% Increase in Revenue
  • 99% Increase in Total Site Traffic
  • 111% Increase in And New Users Have
Lethal Performance Client-verified
SEO, PPC, Email Marketing
Automotive
11-50 Employees
N/A
Wellington, FL
N/A
  • 1,103% increase in revenue
  • 456% increase in website traffic
  • 14,213 first-page Google positions (up from 3,800)
  • 479% increase in paid revenue with 124% increase in ad spend
  • 923% growth in online sales over three years
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
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
The Loken Group Client-verified
Web Design, SEO, Web Development
Real Estate
51-200 Employees
N/A
Houston, TX
N/A
  • 6.8% More Clicks
  • 105% More Views
  • 45% More Impressions
Web Design, SEO, Web Development
Telecom
11-50 Employees
N/A
Houston, TX
N/A
  • 43% More Users
  • 38% More Traffic
  • 45% More Returning Users
Web Design, SEO, Web Development
Energy
51-200 Employees
N/A
Houston, TX
N/A
  • 44.07% More Traffic
  • 17K new users
  • 52.28% More Searches
Lowbrow Customs Client-verified
SEO, Web Development
Automotive
11-50 Employees
N/A
Brunswick, OH
N/A
  • Organic traffic +28% YoY within 6 weeks of launch
  • Transactions and revenue +156% YoY
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
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%
Low VA Rates Client-verified
SEO, PPC, Content Marketing
Finance
N/A
N/A
Lindon, UT
N/A
  • More than doubled organic traffic in a year
  • Doubled traffic and leads
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
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
The Oaks Plastic Surgery Client-verified
SEO
Healthcare
N/A
N/A
Houston, TX
N/A
  • 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%
SEO
Healthcare
11-50 Employees
N/A
Houston, TX
N/A
  • 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
SEO
Home Services
1-10 Employees
N/A
Austin, TX
N/A
  • 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
Web Design, Social Media Ads, SEO
Healthcare
51-200 Employees
N/A
Oklahoma City, OK
N/A
  • 245% increase in Instagram followers
  • 3X higher search ad CTR than industry average
  • 46% increase in blog page views
PPC, SEO
Home & Garden
1-10 Employees
N/A
Edgewater, MD
N/A
  • 112 leads in first month of search ads campaign
  • 11% website lead conversion rate
  • 801 leads from SEO in one year
PPC, Social Media Ads, SEO
Technology
51-200 Employees
N/A
Lafayette, CO
N/A
  • 50 Contacts in 2 Months
  • 96% Reduction in Cost Per Lead
  • 7K Clicks on Facebook Ads in 2 Months
Fit Club New York Client-verified
Local SEO, SEO, Content Marketing
Fitness
N/A
N/A
New York, NY
N/A
  • +2,846% organic traffic
  • +567% ranked keywords (645 to 4,301)
  • +278% page-one rankings (40 to 151, Jan 2021 to June 2025)
SEO
SaaS
N/A
N/A
Studio City, CA
N/A
  • +269% organic traffic
  • +48% page-one rankings (23 to 34)
  • +164% ranked keywords (335 to 885, Jan 2018 to Dec 2023)
SEO
Technology
N/A
N/A
Los Angeles, CA
N/A
  • +657% organic traffic
  • +300% page-one rankings
  • +432% ranked keywords
ArcStone Client-verified
SEO, Content Marketing
Marketing
11-50 Employees
N/A
Minneapolis, MN
N/A
  • 51% increase in organic keywords
  • 1,936.99% increase in organic traffic
  • Domain Rating from 51 to 54
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
SEO
Technology
11-50 Employees
N/A
Lincoln, NE
N/A
  • All-time high revenue
  • 89% increase in organic traffic
  • Domain Rating from 46 to 57
Search Solution Group Client-verified
SEO, Web Design, Lead Generation
Professional Services
51-200 Employees
N/A
Charlotte, NC
N/A
  • +40% inbound leads by Q1 2023
  • +50% organic search traffic over six months
  • +35% click-through rate after moving to responsive search ads
SEO, Web Design, Lead Generation
Manufacturing
1K-5K Employees
N/A
Charlotte, NC
N/A
  • +250% organic traffic
  • +40% lead quality
  • 5x return on investment
  • 28 separate brand sites consolidated into a 2,201-page platform
  • Where-to-buy tool linked to 200,000+ distributors
Web Development, SEO, PPC
Healthcare
N/A
N/A
Charlotte, NC
N/A
  • Grew to 18+ locations and 2 additional markets (Raleigh, NC and Savannah, GA)
  • Platinum Award winner for SEO
  • Website built in 2015 and improved continuously since
CentralStar Cooperative Client-verified
Web Design, Web Development, SEO
Agriculture
201-500 Employees
N/A
Lansing, MI
N/A
  • 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%
Web Design, Web Development, SEO
Manufacturing
11-50 Employees
N/A
Hudsonville, MI
N/A
  • Total users up 53.7%
  • Engaged sessions up 45.6%
  • Session events up 41.9%
  • Organic search up 44.1%
Web Design, Web Development, SEO
Non Profit
N/A
N/A
Cassopolis, MI
N/A
  • New users up 505% in one month
  • Organic search traffic up 809.6%
  • Engaged sessions up 681.2%
  • Event count up 713.5%
Amacoil Client-verified
Web Design, SEO, Content Marketing
Manufacturing
11-50 Employees
N/A
Aston, PA
N/A
  • Search visibility up 42.9% in the first 90 days
  • Visitors up 7.2% and user sessions up 5.6%
  • Session duration up 8.58%
  • 7 of 20 tracked keywords improved
Local SEO, SEO
Automotive
N/A
N/A
Doylestown, PA
N/A
  • Google Business Profile views up 75% in the first year
  • Search engine visibility up 21%
  • 1,400 keywords driving organic traffic
Web Design, SEO
Manufacturing
51-200 Employees
N/A
Hatfield, PA
N/A
  • Domain authority score up 6 points
  • Custom Stud Master landing page became the #2 entry point, over 10% of traffic
Island Inn Client-verified
PPC, Email Marketing, SEO
Hospitality
N/A
N/A
Sanibel, FL
N/A
  • 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
SEO
Retail
N/A
N/A
Castro Valley, CA
N/A
  • 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%
SEO, Content Marketing
Retail
1-10 Employees
N/A
Shoreham, MI
N/A
  • 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
Squaremouth Client-verified
GEO, SEO, Content Marketing
Insurance
11-50 Employees
N/A
St. Petersburg, FL
N/A
  • 270% more revenue from ChatGPT in 6 months
  • Search traffic up 78% while competitors lost 34.5% to AI Overviews
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
SEO
Healthcare
51-200 Employees
N/A
Brisbane, CA
N/A
  • 580% growth in 5 months
  • $22M Series A raised
Taco Bar Catering Client-verified
SEO, Local SEO
Food & Beverage
N/A
N/A
California, United States
N/A
  • 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
SEO
Hobbies & Leisure
N/A
N/A
Fountain Valley, CA
N/A
  • Conversions up 6x
  • Ranked #1 in Orange County, within the top 3 results
  • 33,000+ visits
  • 458+ passes sold
  • $747K+ revenue generated by SEO
SEO
Fitness
N/A
N/A
Newport Beach, CA
N/A
  • Conversions up 7x
  • Year-over-year revenue +350%
  • 35,150+ visits
  • 458+ memberships
  • $1.37M+ revenue generated by SEO
John H. Fisher, P.C. Client-verified
SEO, Link Building
Law Firm
1-10 Employees
N/A
Kingston, NY
N/A
  • 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)
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)
SEO, Local SEO, Link Building
Law Firm
11-50 Employees
N/A
Albany, NY
N/A
  • 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)
Le Bledo Eatery Client-verified
Web Design, SEO
Restaurant
N/A
N/A
Springfield, VA
N/A
  • Google Business Profile views +28.5% YoY
  • Engaged sessions +24.8%
  • Website views +41.4% vs. the prior quarter
  • Redesigned menu with sticky sidebar, allergy key and catering order forms
PPC, SEO
Education
201-500 Employees
N/A
Vienna, VA
N/A
  • Bing Ads clicks +124% (2022 vs. 2021)
  • Bing Ads revenue +96.5% and transactions +80.5%
  • Bing Ads viewable impressions +222%
SEO, Local SEO
Franchise
N/A
N/A
Tampa, FL
N/A
  • Users +236% since SEO began
  • Page views +150%
  • Bounce rate -13% YTD
  • Page 1 for a top keyword within 2 months
Sunshine Supply Client-verified
Web Development, SEO, PPC
Wholesale Distribution
11-50 Employees
N/A
San Diego, CA
N/A
  • 46% traffic increase
  • Average search positions reduced by 30%
SEO
Wholesale Distribution
1-10 Employees
N/A
Springfield, IL
N/A
  • 47:1 ROI on the SEO program
  • 31% increase in organic traffic
  • 27% increase in search results clicks
Web Development, Web Design, SEO
Medical & Scientific
11-50 Employees
N/A
Woburn, MA
N/A
  • 40% improvement in website traffic
  • 25% of website traffic coming from the blog
  • 10% boost in conversion rates
Joe & Bella Client-verified
SEO
Fashion
1-10 Employees
N/A
Northbrook, IL
N/A
  • 507% increase in page one keywords
  • 328% increase in top-3 keyword rankings
  • 14,731 keyword position improvements
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
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

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