Custom Software Development & Cybersecurity in Columbus, 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 city built on insurance, retail, and a growing technology base, that combination fits unusually well.

Columbus has an economic profile that few cities its size can match. Nationwide is headquartered here, and around it sits one of the deepest concentrations of insurance and financial-services talent in the country — carriers, agencies, third-party administrators, and the actuarial and claims operations that support them. The retail heritage runs just as deep: L Brands spun out Victoria's Secret and Bath & Body Works here, Big Lots and Designer Brands are headquartered in the metro, and a thriving DTC and apparel ecosystem grew up alongside them. Add a fast-growing logistics footprint, a major research university in Ohio State, and an Intel semiconductor megafab rising in Licking County, and you have a market where operations software, claims tooling, and customer-facing platforms are in constant demand.

Columbus has no shortage of staffing shops and enterprise consultancies. What is harder to find is a founder-led firm that ships modern web applications, builds the integration layer between legacy carrier 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 Columbus-region engagement, whether the buyer is an insurance agency, a retail operator, or a Central Ohio SaaS founder.

Columbus 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 Columbus 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.