Quality. On Demand.


Sigma delivers certified inspections, quality services, and smart digital tools — fast, flexible, and backed by decades of hands-on industry experience.

What We Do:

At Sigma Services LLC, we provide precision-driven quality solutions that move as fast as your production line. From rapid-response inspections to engineering consulting and workforce development, we help manufacturers contain issues, prevent defects, and build long-term operational resilience.

With more than 30 years of hands-on experience in automotive, aerospace, and defense, our team doesn’t just understand quality — we’ve lived it, led it, and solved it on the front lines.

When quality can’t wait, Sigma delivers.

What We Offer:

  • Certified inspectors on standby — deployable to your site or suppliers within hours. Available through annual retainers with on-demand activation. Ideal for containment, rework, and emergency inspection needs.

  • Fast to launch. Built around your process. Backed by data.

    We deploy quality gates within 12–24 hours, using certified inspectors and proven inspection methods tailored to your parts and failure modes. Materials are handled with precision and full traceability, while real-time reporting keeps your team informed at every step. Seamlessly integrated into your workflow, our team acts as an extension of yours — delivering performance without disruption.

  • Assurance & Engineering Consulting
    Sigma provides embedded quality professionals and supplier-focused engineers to strengthen processes and reduce risk. Our Quality Assurance Associates integrate into OEM or supplier teams to manage daily quality operations and support escalation efforts, while our Quality Engineers lead supplier industrialization and apply advanced tools to prevent defects at scale. Services are available as part of a retainer plan or can be accessible via short-term/long-term contracts.

  • Sigma’s AI-enhanced platform transforms inspector inputs into optimized inspection and rework strategies, reviewed by Quality Engineers and deployed through our mobile app. Real-time data powers custom dashboards aligned to client KPIs, with optional ERP integration for end-to-end quality visibility. Available as a standalone system, managed service, or integrated access to Sigma’s infrastructure.

  • Sigma’s AI tools analyze inspection data to recommend optimized rework and inspection methods, which are reviewed by engineers and deployed through mobile workflows. Logic-based automation triggers alerts and routes issues based on risk, while real-time dashboards and ERP integration provide full quality visibility. Available via project engagement, platform licensing, or system integration.

  • Sigma monitors, maintains, and optimizes your quality dashboards and inspection systems — delivering real-time visibility, monthly reporting, and proactive risk insights. Offered as a subscription, this hands-off service ensures your quality data stays accurate, actionable, and aligned to your goals without internal management overhead.

  • Sigma Ascent™ is our proprietary, tiered training program for developing quality professionals — from entry-level inspectors to advanced engineers. Used internally at Sigma and available externally, courses can be purchased as SCORM or MP4 files, delivered live online, or taught in person. Organizations can license individual modules or the full curriculum, with options for white-label branding.

 

Why Choose Us?

Quality. On Demand. Excellence by Design.

Based in Charleston and rooted in the Greenville manufacturing community, Sigma Services was built to serve South Carolina’s top industries — and scale across the U.S., Mexico, and Canada. We understand the pace, pressure, and precision that quality demands in automotive, aerospace, and defense.

  • Rapid Response: Inspectors onsite in hours, not days.

  • Custom Solutions: We build around your process — not from a playbook.

  • Real Experience: Decades in plant-level quality and supplier development.

  • Transparent Pricing: No surprises. Clear retainer and activation models.

  • Scalable Support: From emergency rework to long-term embedded teams.

We're not just a vendor. We're your local, strategic partner — ready when quality can't wait.

At Sigma Services, we believe quality is a mindset. Embedded in how we think, how we train, and how we show up for your operations.

Our Company Ethos:
At Sigma Services, we are driven by excellence, integrity, and a people-centric approach. We strive for the highest standards in quality, uphold ethical practices, and empower our clients’ and our associates to succeed. With a focus on transparency and continuous advancement, we deliver tailored solutions that drive results and keep you ahead in your industry.