Best SEO Agencies in Pennsylvania (2026) – Ranked by Case Studies
All Pro Trailer Superstore Client-verified
- 113% Increase in SEO Conversions
- 50% Increase in SEO Conversion Rate
- 600% Increase in Leads from Email Marketing
- 46% Increase in SEO Users
- 948% Increase in Web Visits from Email
- 88% INCREASE IN ORGANIC PAGES PER SESSION
- 78% Increase in Lead Form Submissions in First 6 Months
- 337% Increase in Calls from PPC Ads
- 24% Increase in Phone Calls in First 6 Months
- 583% Increase in Form Submissions from Google Ads
- 23% Increase in Form Submissions from Social Media
Amacoil Client-verified
- 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
- Google Business Profile views up 75% in the first year
- Search engine visibility up 21%
- 1,400 keywords driving organic traffic
- Domain authority score up 6 points
- Custom Stud Master landing page became the #2 entry point, over 10% of traffic
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
- 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
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
Zentz Industrial Services Client-verified
- Google Ads conversions in under 2 months
- Google Ads rebuilt and SEO strategy implemented
- 41% Increase in Organic Transactions
- 10% Increase in Organic Revenue
- 35% Increase in Overall Sessions
- 47% Increase in Overall New Users
- 23% Increase in Overall Transactions
- 23% Increase in Monthly Organic Sessions
- 1,672,890 Sessions
- $972k
- 26% Increase in Overall Annual Revenue
- $2.6 m in Illion
- 340% increase in organic impressions
- 269% increase in organic traffic
- 191% increase in total keywords
- 97% increase in clicks
- 455% increase in impressions
- 15.4 position improvement for all ranking keywords
- 200% increase in organic impressions
- 350% increase in organic traffic
- 17,794 ranking keywords in 12 months
- 70x ROI on SEO (June 2024 to February 2025)
- 170 enrolled students from organic form submissions
- +142% organic traffic (58,950 vs. 24,408)
- 2.14M organic impressions vs. 1.02M
- 5.8x ROI from SEO and PPC combined
- 3.3x ROI from SEO
- 2.8x ROI from PPC
- +75% organic search traffic YoY
- 6.7x ROI on SEO (Aug 2025 to Jan 2026)
- One December organic lead covered about 6x annual ROI
- Shifted budget from Angi to the agency
- 37 new Page 1 keywords
- $55377 boost in monthly traffic value
- 443% increase in monthly traffic
- 21 new keywords in positions 1-5
- 4 new websites launched
- $20K increase in monthly traffic value
- 26K new monthly sessions
- 1611% monthly traffic increase (Hatfield site)
- 690% increase in organic traffic value (Hatfield site)
- 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
- 50% eCommerce Sales Increase by Year End
- 34% eCommerce Revenue Increase (Q1 vs. Post-Optimization Quarter)
- 100% Leasing Occupancy
- 1.9M Campaign Impressions
- 1,020 Total Conversions
- 89,500+ Website Sessions
- +300% page-one rankings
- +206% organic traffic
- +132% ranked keywords
- Visibility that led an NBC News team to the studio
- +385% lead form submissions
- 2x visitor engagement rate
- +43% organic search traffic
- #1 for "weight loss philadelphia" by July 2022
- 62% Increase in Organic Sessions Post-Launch YoY
- 130% Increase in Organic Conversion Rate Post-Launch YoY
- 273% Increase in Organic Goal Completions Post-Launch YoY
- A single sale from AI-search traffic generated 270% ROI on SEO and AI marketing spend
- 726% ROI on digital marketing program
- 317% ROI on digital advertising program
- #2 ranking for "Electric Vehicle Dealer Near Me"
- 57,738 impressions in July alone
- Improved local rankings for "Oil Change Pittsburgh PA"
- #1-3 Local Map Pack rankings across Philadelphia in 4 months
- "Philadelphia employment lawyer" and "employment attorney near me" in the Map Pack
- Large increase in discovery searches and inbound calls
- Google Business Profile and review system overhauled
- 706 Gain in Google SERP Positions
- 154.14% Increase in Organic Users YoY
- 90.28% Increase in Organic Pageviews YoY
- 5,231% increase in keyword rankings (Oct 2019 to May 2020)
- 1,600% increase in keywords in the top 3 positions (Oct 2019 to May 2020)
- +200x increase in blog traffic
- +300K additional visitors
- Successfully launched Magento eCommerce websites for premium jeweler in only nine weeks.
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