Pennsylvania · Winner of 2022 Philadelphia 100 Fastest Growing Company Award
OpenSource Technologies (OST) is the web development company Philadelphia organizations turn to for powerful web solutions. From corporate portals to complex web platforms, our work is guided by client vision, user behavior, and data-driven strategies. Award-winning team based in Lansdale, with a second US office in Atlanta, Georgia.
Industries we serve in Pennsylvania
The same six anchor verticals we serve nationally, with deeper presence in Pennsylvania given our Lansdale headquarters and 14 years of in-state work.
Education
Custom CMS platforms, alumni directories, ADA-conformant builds for charter networks and private colleges across PA.
Education vertical →Nonprofit & civic
Multi-year engagements for advocacy organizations and civic-tech platforms based in Philadelphia and surrounding counties.
Nonprofit vertical →Healthcare & wellness
Medical directory platforms, telemedicine-adjacent tools, and HIPAA-aware infrastructure for PA-based health-sector clients.
Healthcare vertical →Real estate technology
Multi-tenant SaaS, brokerage tools, property platforms. Strong presence with PA-based real estate technology operators.
Real Estate vertical →E-commerce
Custom commerce platforms for Pennsylvania manufacturers, B2B distributors, and specialty retailers.
E-commerce vertical →Manufacturing & B2B
Embedded engineering teams for PA manufacturers and B2B safety-tech firms. Multi-year retainers with same team continuity.
Manufacturing vertical →In and around Philly
From Lansdale's Montgomery County offices to clients across the Commonwealth and beyond. We are a custom mobile-app and software-development company with two US offices (Lansdale, PA and Atlanta, GA) plus an India delivery team.
01 · Mobile app development in Philadelphia
From startups to mid-sized companies and global enterprises, our Philadelphia mobile-app team has delivered solutions across industries. Named work includes large-scale enterprise apps for KDD (Kuwait Danish Dairy), investment platforms, and mobile redesign for ScholarVets Network.
02 · Custom app development
We design, build, and maintain software that solves real business problems. Embedded software, IoT, mobile, custom software, cloud platforms, and security programming. Business consulting from discovery through delivery and beyond.
03 · Hire near you
Lansdale headquarters, 30 minutes from Philadelphia, 2 hours from Harrisburg. Same time zone, same business calendar. Senior leads attend kickoffs in person across the Commonwealth where the work calls for it.
04 · Repeat partnerships, not one-off
The OST team steps in repeatedly to solve complex business challenges. Most engagements run multi-year. Customers stick with us because we stick with them through the build, the launch, and everything that follows.
What Pennsylvania clients say
“The client was impressed with the amount of options that the agency provided them. They were pleased with the response time and ability to make adjustments quickly.”
““OpenSource Technologies Inc. was able to successfully bolster the client's IT needs. The team's workflow was highly effective, and internal stakeholders were particularly impressed with the vendor's level of engagement.””
“The responsive website is attracting new clients to the business. The creative team at OpenSource Technologies Inc. is patient, accommodating, and detail-oriented. Their project management style is also noteworthy.”
More named reviews on our testimonials page. Search "open source technologies" on Clutch for the full set.
Compliance and PA procurement
Pennsylvania state, county, and municipal procurement teams require defensible compliance posture. Our work meets the conformance standards typically asked for in PA SLED bids.
Procurement officers can reach out via the contact form below to receive the full procurement packet, including capability statement and reference contacts.
Pennsylvania-specific inquiries
Whether you are a PA-based business evaluating vendors, a school district preparing an RFP, or a procurement officer running a SLED bid evaluation, we respond within one business day.
