9 SEO companies are in Pennsylvania and scored on public evidence. One listed company publishes a comparable monthly SEO entry price of $3k/mo; the others remain Not published.
Demand concentrates in Philadelphia, Pittsburgh, Harrisburg. The most common in-house disciplines here are Analytics, Content Marketing, Technical SEO, and the verticals with the deepest local bench are Ecommerce, Healthcare, Home Services.
Profiles listed
9
In Pennsylvania
Published retainer floor
$3k/mo
Only published floor
Median disclosed tenure
0 yrs
Oldest founded 1996
Hub Score range
49–88
Median 55 of 100
Ordered by Hub Score. Entity type and missing commercial facts are labeled explicitly; nothing is sponsored.
A Harrisburg-headquartered, full-service agency whose official history traces operations to 1996, with 750 experts on staff and current SEO plans starting at $3,000 per month.
A Philadelphia digital consultancy founded in 2002, with a current 250-plus published workforce population spanning full-time staff, contractors, part-timers and interns.
A Bristol-based agency that opened in 2009 and now publishes a 100-plus-person team across SEO, paid media, content, development, creative and client services.
A Harrisburg agency founded in 2020, combining SEO and AI-search visibility with websites, paid media, content, social, analytics and custom software.
A Bristol and Philadelphia web company operating since 2012, combining technical and local SEO, content, authority building, conversion-focused WordPress sites and maintenance.
A Bristol-based independent marketing-operations and technology consultant working since 2019 across SEO, websites, paid media, automation, analytics and campaign systems.
A Philadelphia-based SEO firm serving small and mid-sized businesses with technical and local search, content, paid media, web development, conversion and analytics.
A Harrisburg-area owner-led web practice offering SEO, SEM, content, custom development, ecommerce, hosting, security and maintenance.
A Philadelphia web-design company offering deeper SEO campaigns, on-page foundations, conversion-focused sites and ongoing support for small businesses.
All 9 Pennsylvania listings compared on the four facts buyers screen first: age, headcount, entry price and pricing model.
| Company | City | Founded | Team | Retainer from | Pricing | Website visits | Hub Score |
|---|---|---|---|---|---|---|---|
| WebFX | Harrisburg | 1996 | 500+ | $3k/mo | Monthly retainer | No public estimate | 88 |
| Seer Interactive | Philadelphia | 2002 | 250-500 | Not published | Not published | No public estimate | 77 |
| 1SEO Digital Agency | Bristol | 2009 | 50-150 | Not published | Not published | No public estimate | 73 |
| WD Strategies | Harrisburg | 2020 | 10-20 | Not published | Not published | No public estimate | 60 |
| Total Web Company | Bristol | 2012 | Not published | Not published | Not published | No public estimate | 55 |
| Gary Hagins | Bristol | 2019 | Not published | Not published | Not published | No public estimate | 52 |
| Philly SEO PRO | Philadelphia | Not published | Not published | Not published | Not published | No public estimate | 52 |
| Conklin Web Solutions | Harrisburg | Not published | Not published | Not published | Not published | No public estimate | 49 |
| The 215 Guys | Philadelphia | Not published | Not published | Not published | Not published | No public estimate | 49 |
Only one listed company publishes a comparable monthly entry retainer: $3k/mo. Treat it as one reference point, not a market average; scope, competitiveness and content volume change the actual price.
Floors shown in USD, as published or disclosed by each company.
Picked mechanically from the data on this page, so you can start a shortlist without reading every profile.
Longest-running
WebFX · 88Trading since 1996.
Lowest entry retainer
WebFX · 88Starts at $3k/mo.
Boutique team
WD Strategies · 6010-20 people — senior time on the account.
Largest bench
WebFX · 88500+ people across disciplines.
Share of listed companies that deliver each discipline in-house. Anything missing here is work you would brief to a second vendor.
Verticals the listed companies document experience in. Deep local bench means you can compare two or three shops that already know your SERP.
Pennsylvania listings with published headcount span 10-20 (1), 50-150 (1), 250-500 (1), 500+ (1). Another 5 listings leave headcount Not published. Not published is the most common published commercial model, which helps frame a normal engagement before a sales call.
Match scale to your problem. 1 of the 4 with published headcount is under 50 people, where the people who win the pitch usually do the work. 2 operate at 150+, which buys bench depth for multi-market or multi-location programmes but adds account-management layers.
Treat the published floor as one reference point. The only comparable public monthly entry price is $3k/mo. Ask every shortlisted company for the same line-item scope — hours, content output, technical implementation, reporting and contract term — before comparing proposals.
Verify tenure independently. Among the 6 listings with a sourced founding year, median tenure is 0 years; the longest-running listing, WebFX, has traded since 1996. Founding dates can be checked against company registers and archived versions of the site.
100 points across five factors, each computed from a fact you can check yourself. Nothing here is bought, voted on or averaged from review sites.
