Custom Software Development & Cybersecurity in Cleveland, OH

QUANT LAB USA pairs custom software engineering with hands-on penetration testing rooted in the MITRE ATT&CK framework — not just selling development hours. For a healthcare-and-manufacturing economy where compliance and uptime are non-negotiable, that combination fits unusually well.

Cleveland punches far above its weight in healthcare. Cleveland Clinic, University Hospitals, and MetroHealth anchor a medical ecosystem with global reach, and around them sits a dense layer of medical-device makers, health-tech startups, biotech research, and the practices and specialty groups that feed the hospital systems. The other half of the economy is industrial: Northeast Ohio remains one of the most concentrated manufacturing regions in the country, from steel and polymers to precision components, with companies like Sherwin-Williams, Parker Hannifin, Eaton, and Lincoln Electric headquartered in the metro. Both halves run on operations software — patient intake and scheduling on one side, jobs and inventory and machine data on the other — and both face hard compliance and security expectations.

Cleveland has plenty of staffing firms and enterprise consultancies. What is harder to find is a founder-led shop that ships modern web applications, builds the integration layer between legacy EHR or MES systems and new tooling, and runs credible offensive security engagements — all under one roof. That is what we offer. Active Directory abuse paths, lateral movement, ADCS certificate abuse, Kerberoasting, web app exploitation — that is in-house capability, not a subcontracted line item. And every line of software we ship is reviewed against the same threat models we use on offensive engagements.

QUANT LAB USA is a founder-led shop with a track record of shipping production software and running full-scope security engagements. Our pen testing work includes an end-to-end internal Active Directory assessment for a regional financial-services firm — eleven attack modules, every finding mapped to a MITRE ATT&CK technique, the full attack chain from standard user to Domain Admin documented with screenshots and timestamps. The client passed their compliance audit on the first attempt. That is the same methodology we apply to every Cleveland-region engagement, whether the buyer is a health-tech vendor, a manufacturer, or a Greater Cleveland SaaS founder.

Cleveland runs on Eastern Time, the same as our Macon, Georgia headquarters, so we share the entire business day — no awkward windows for standups, reviews, or same-day questions. Most engagements start with a 60-minute scope by video. For engagements above roughly $25k we travel to Cleveland for an on-site kickoff and for internal pen tests that require physical network access. Build cycles run weekly with a Friday staging URL, written notes, and the next-week plan. Pen test reports are delivered in two formats: a technical deliverable with reproduction steps and remediation detail for the security team, and a board-readable executive summary with a prioritized remediation roadmap. Fixed-scope, fixed-price proposals on most engagements; full code, database, and infrastructure handover at acceptance.