The industry of Search Engine Optimization (SEO) companies represents a diverse array of organizations, with key operations in the Pennsylvania region. These firms vary widely in their range of offerings, from ecommerce SEO services to PPC services, social media advertising to connected TV, and OTT. Their comprehensive solutions are often powered by intuitive platforms and driven by results-oriented strategies. The scope of their services extends to elements like website audits, keyword research, link building, and content creation. As the industry evolves towards more sophisticated digital marketing paradigms, there's an increasing emphasis on organic traffic generation and enhanced online visibility. With the arena constantly expanding, there is anticipation for the continued rise of Pennsylvania-based SEO companies, offering more innovative solutions.


Top 22 search engine optimization companies in Pennsylvania

1. WebFX

  • Website: webfx.com
  • Headquarters: Harrisburg, Pennsylvania, United States
  • Founded: 1996
  • Headcount: 201-500
  • Latest funding type: Private Equity
  • LinkedIn

Webfx.com is a digital marketing company specializing in ecommerce SEO services, PPC services, social media advertising, video commerce, and connected TV and OTT. They offer marketing solutions through their proprietary platform, MarketingCloudFX, helping businesses track performance, conduct industry research, calculate ROI, and make strategic decisions.


2. Web 2.0 Ranker

  • Website: web20ranker.com
  • Headquarters: Harrisburg, Pennsylvania, United States
  • Founded: 2015
  • Headcount: 51-200
  • LinkedIn

Web 20 Ranker is a leading provider of wholesale and private label SEO services. They specialize in helping businesses improve their search engine rankings and generate more organic traffic. With a team of experienced SEO professionals, they offer a wide range of services including website audits, keyword research, link building, and content creation.


3. 1SEO Digital Agency

  • Website: 1seo.com
  • Headquarters: Bristol, Pennsylvania, United States
  • Founded: 2009
  • Headcount: 51-200
  • LinkedIn

1seo.com is a leading digital marketing agency that offers a full suite of marketing and advertising services. With over 10 years of experience, they have a proven track record of helping businesses grow online. Their team of highly skilled professionals is dedicated to delivering top-notch service and results for their clients. Whether it's search engine optimization, pay-per-click advertising, social media marketing, or website design, 1seo.com has the expertise to drive success for any business.


4. Strategic Connection

Strategic Connection is a digital marketing agency that provides comprehensive marketing strategies to drive traffic and business growth. They create captivating websites and graphics to attract new customers and offer content marketing services to improve SEO and engage target audiences.


5. Philly Online Marketing

Philly Online Marketing is your local resource for premier internet advertising in and around the Philadelphia tri-state area. Specializing in SEM(Search Engine Marketing/Pay Per Click/Google Adwords) along with Display, Social Media, In-App Mobile ads, Responsive Design Websites, Lead Conversion Tracking, Call recording, SEO and More. Helping Philadelphia area local businesses get visibility on all the major search engines(Google, Yahoo, Bing, Superpages, CitySearch & More). Includes complete call recording tracking from the client's website as well as where the people went once on your website. The client uses the data to get a clear picture on the performance and their ROI. We use the data to optimize JUST on the search words(keywords) that get your business the most sales leads. Works far better than most any place you can advertise because it is so targeted to your Local area and only seen by Local people searching for your services.


6. New Equation

Seer Interactive is a digital marketing agency that leverages big data to provide strategic insights and grow businesses. They specialize in search engine optimization (SEO), pay-per-click (PPC) advertising, and analytics.


7. Dinkum Interactive

Dinkum Interactive is a digital performance agency specializing in website management, technical SEO, and WordPress development. With 18 years of experience, we offer proven solutions to start-ups, e-commerce businesses, non-profits, and agencies. Our services include proactive WordPress management, web analytics, search engine optimization, and custom plugin development.


8. Nucitrus

  • Website: nucitrus.com
  • Headquarters: Quakertown, Pennsylvania, United States
  • Founded: 2012
  • Headcount: 11-50
  • LinkedIn

NuCitrus is a digital marketing agency that offers website development, website design, mobile app development, and SEO services. They specialize in creating attractive and user-friendly website experiences that drive results. With a process-driven approach, they optimize websites to deliver revenue-generating results and help businesses reach their target audience with impactful messages.


9. SRS Marketing Company

SRSMarketing is a company that offers a range of marketing solutions to businesses. They provide services such as SEO, social media marketing, content creation, and website design. With their expertise, they help companies increase their online presence and attract more customers.


10. Boomtown Internet Group

  • Website: boomtownig.com
  • Headquarters: Glenmoore, Pennsylvania, United States
  • Founded: 1993
  • Headcount: 11-50
  • LinkedIn

Boomtown Internet Group is a digital marketing and web design service company based in Philadelphia. They offer services such as SEO management, web design, digital advertising, graphic design, and WordPress care plan. With a focus on data-driven strategies, they help businesses optimize eCommerce product pages and reach new customers through search engine optimization and social media marketing. Their team of experts provides measurable results and proven success to help companies grow their businesses online.


11. Vendilli Digital Group

  • Website: vendilli.com
  • Headquarters: Pittsburgh, Pennsylvania, United States
  • Founded: 2007
  • Headcount: 11-50
  • LinkedIn

Vendilli Digital Group is a marketing agency that specializes in helping businesses grow through digital strategies. They offer a range of services including inbound marketing, web design and development, Google Street View tours, HubSpot consulting, branding and strategy, digital advertising, storybrand messaging, search engine optimization, and video production.


12. Make Your Mark

Make Your Mark Digital is a digital marketing agency that specializes in inbound marketing, Facebook advertising, and Google Adwords. They offer services such as lead generation, social media advertising, and search engine optimization.


13. WebTek

  • Website: webtekcc.com
  • Headquarters: Akron, Pennsylvania, United States
  • Founded: 1999
  • Headcount: 11-50
  • LinkedIn

Webtekcc.com is a web design and digital marketing agency that specializes in creating stunning and intuitive responsive websites. With a focus on engaging potential customers, they offer services such as web design, video production, search engine optimization, content marketing, and social media marketing. They aim to help businesses build their brand, increase online visibility, and achieve success in the digital sphere.


14. Venerate Media Group

Venerate Media Group is a professional digital marketing agency that offers a range of services including search engine optimization, pay per click advertising, content creation, email marketing, and social media management. They specialize in creating impactful marketing solutions for various industries.


15. Trinity

  • Website: trinity.one
  • Headquarters: Philadelphia, Pennsylvania, United States
  • Founded: 2005
  • Headcount: 11-50
  • LinkedIn

Trinity.one is a digital optimization team founded in 2006. They offer professional services to enhance brands' online presence and competitiveness.


16. Outreach Monks

Outreach Monks is a link-building agency that offers strategic and sustainable solutions to businesses and agencies worldwide.


17. River Avenue Digital

River Avenue Digital is a marketing agency that specializes in digital marketing for small businesses. They offer services such as paid social ads, Google ads, paid search, and digital advertising campaigns to help businesses stand out and attract the right customers.


18. Lseo

  • Website: lseo.com
  • Headquarters: Wilkes-Barre, Pennsylvania, United States
  • Founded: 2014
  • Headcount: 11-50
  • Latest funding type: Acquired
  • LinkedIn

LSEO is an SEO agency that offers forward-thinking and original content to online businesses. With a team trained in the latest SEO practices, LSEO delivers customized campaigns and real results for clients in various industries.


19. Cosmitto

  • Website: cosmitto.digital
  • Headquarters: Pittsburgh, Pennsylvania, United States
  • Founded: 2010
  • Headcount: 11-50
  • Latest funding type: Series A
  • LinkedIn

Cosmitto is a digital marketing agency that offers a wide range of services to improve online visibility and customer engagement. With expertise in SEO, web design, social media management, and content strategy, we help businesses connect with their target audience and drive results.


20. Ydop

  • Website: ydop.com
  • Headquarters: Lancaster, Pennsylvania, United States
  • Founded: 2006
  • Headcount: 11-50
  • LinkedIn

YDOP is an award-winning digital marketing agency based in Lancaster, PA. They specialize in website design and development, search engine optimization, paid search, social media marketing, reputation management, and near-user marketing. With their expertise and personalized approach, they help businesses with localized markets achieve their digital marketing goals.


21. Pittsburgh Internet Consulting

Pittsburgh Internet Consulting is a professional consulting firm that offers a range of marketing services to help businesses achieve their goals. They specialize in inbound marketing, search engine optimization, paid search, content creation, social media marketing, email marketing, website design, and eCommerce solutions.


22. NuStream

NuStream is a digital marketing company that offers web design, video production, and other digital marketing services. We help businesses create compelling media solutions and ensure their online presence reflects their brand.


Want to find more search engine optimization companies?


If you want to find more companies that offer comprehensive SEO solutions aimed at enhancing online visibility you can do so with Inven. This list was built with Inven and there are hundreds of companies like these globally.


With Inven you'll also get to know the company's:


  • Ownership: Which of these are private equity backed? Which are family-owned?
  • Contact data: Who are the owners and CEO's? What are their emails and phone numbers?
  • Financials: How do these companies perform financially? What are their revenues and profit margins?

...and a lot more!