Ranked · 18 of 21 assessed
Ordered by Agency List ScoreCustom software, AI, and systems integration for nonprofits, schools, and healthcare clients
SEO and PPC services for inbound lead capture and search visibility
Development and dev services for inbound lead capture and search visibility
Custom Software and API Integration for Live Events and Enterprises
Custom AI-powered software development for logistics and enterprise operations
Transforming ideas into software across diverse industries
Development and dev services for inbound lead capture and search visibility
Philly-based digital product design and development agency
Analytics and content services for inbound lead capture and search visibility
SEO and PPC services for inbound lead capture and search visibility
Custom software development and cloud services for diverse industries
AI-driven custom software development for diverse industries
Designs, builds, and deploys software products and solutions.
Empowering pioneers with technology for applications and marketplaces
Custom software and CRM solutions for enterprise needs
Development and dev services for inbound lead capture and search visibility
Crafts digital experiences with branding and web development
Designs award-winning websites and mobile applications for diverse clients
Also in Pennsylvania · 8 not ranked here
5 have not yet been assessed on the Agency List Score. Alphabetical.About this ranking
What this page ranks
This page ranks 18 of the 21 assessed custom software development agencies in Pennsylvania, United States — the ones carrying a published score — out of 26 listed.
The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.
Cohorts and awards
Agencies are compared within a cohort — here, Custom Software Development in Pennsylvania, United States. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 21, so the strongest award available here is top 10%.
The 5 custom software development agencies not yet assessed are listed on this page but not ranked.
A further 3 were assessed and no published evidence of their work was found, so no score is shown for them.
Paid placement
Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.
Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.
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Questions
- How many custom software development agencies are in Pennsylvania, United States?
- 26 are listed on Agency List in Pennsylvania, United States. 21 of them have been assessed on the Agency List Score as of October 2026, and 18 of those carry a published score.
- Which custom software development agency in Pennsylvania, United States is ranked highest?
- OpenSource Technologies has the top Agency List Score, 97, among the 21 assessed agencies in Custom Software Development in Pennsylvania, United States.
- Why are 8 custom software development agencies listed here but not ranked?
- 5 of the 26 listed have not yet been assessed on the Agency List Score. A further 3 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
- How is the ranking determined?
- By Agency List Score, within the Custom Software Development in Pennsylvania, United States cohort of 21 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.