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Custom software · Lansdale, PA

Software that has to work the first time.

We build, modernize, and run custom software for K-12, government, nonprofits, and growing businesses.

New platforms. Legacy systems. Mobile apps. Ongoing maintenance. AI when it fits.

No pitch deck. No pressure. We respond within 1 business day.

14+ Years
150+ Projects
35+ Countries
4.8★ Clutch
SAM-registered WP Engine Partner AWS-certified WCAG 2.2 AA · 508

The 2026 reality

AI helps you sketch. We help you ship.

A buyer can ask ChatGPT for a stack, a wireframe, and a budget in 20 minutes. What AI can't do (yet) is the part that decides whether your software actually works in production.

What AI does well

Sketches, drafts, prototypes

  • Lovable, v0.dev, Bolt: usable MVP in days
  • Cursor + Claude Code: features in minutes
  • ChatGPT: first-pass tech recommendations
  • AI-generated wireframes and copy
What we do

Production systems that hold up

  • Pass WCAG 2.2 AA + Section 508 audits
  • Integrate with the 14 systems you already run
  • Survive 100x traffic spikes without downtime
  • Earn a state procurement officer's approval
  • Maintain across 5 years of platform drift

AI-fluent. Policy-aware. Production-grade.

We use AI dev tools where they help us ship faster, and we ship without them when your policy says we should. Your contract sets the rules. We follow them. Read our AI policy →

Claude CodeCursorCodexCopilot

Our hidden #1 service

Skip hiring 6 senior engineers.

Most clients don't book a 'project.' They retain us as their engineering team, building features, running servers, monitoring analytics, fixing what breaks. One contract. Predictable budget. Always-on coverage.

  • Site & app management
  • New features as needed
  • Server & cloud operations
  • Analytics & reporting
  • Integration work
  • On-call response
Explore Maintenance

Customer stories

Real names, real outcomes, on camera.

Five clients agreed to talk about their work with us on video. Plus 36 reviews independently verified by Clutch.

4.8/5.0

36 verified reviews on Clutch. Each one independently confirmed by Clutch with the client.

Read all reviews on our testimonials page →

How we work

Three reels on how we work.

Each one covers a different part of working with OST.

~90 seconds

How OST Can Help You

Common questions

Frequently asked.

What's a typical engagement size?
Anywhere from a 4-week scoped engagement (e.g. an accessibility audit + remediation plan) to multi-year retainers running custom platforms and AI integrations. Most clients land somewhere in the 3-12 month range for build engagements, with optional ongoing maintenance.
Do you work with US clients only?
Mostly. Our delivery team is global with US-time-zone presence, but our buyers are predominantly US mid-market businesses, agencies, K-12, higher ed, and government. We follow your client's AI policy and data-residency rules.
Are you SAM-registered? Can you respond to RFPs?
Yes. We're SAM-registered and have past performance across K-12, higher ed, civic, and nonprofit. Section 508 + WCAG 2.2 AA conformance is standard. Capability Statement available on request.
How do you handle AI in your engagements?
AI is one tool among many. We integrate Generative AI when it solves a real problem (search, content generation, customer support, document processing) and we say no when it doesn't fit. Every AI integration we ship has a human-in-the-loop checkpoint.
What's your accessibility track record?
We've shipped WCAG 2.2 AA + Section 508 conformant builds across K-12, higher ed, healthcare, and nonprofit. Our team includes a WCAG-certified Accessibility Oversight lead. We audit and remediate. We don't bolt accessibility on at the end.
Ask AI