Trusted SPC
for People Who Believe in
Math, Not Magic

Quality isn't an accident—it's controlled variables. Whether you deploy GainSeeker (Local) or GS (Cloud), Hertzler provides the clean data foundation needed for "Lights-Out" manufacturing efficiency.

Math-Based Manufacturing
Engineering-Grade SPC
Statistical Process Integrity
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Why Hertzler?
"Why Hertzler? We speak your language—Variance, Cpk, OEE, and NCRs. Since 1986, we’ve helped engineers move from "I think" to "The data proves." While "trendy" software comes and goes, we’ve spent 40 years perfecting the physics of process control and shop floor integrity. We don't just sell tools; we provide the mathematical foundation for sustainable quality. Trust the name that defined SPC.
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Built on Proven SPC Logic
The Hertzler "No-Fluff" Difference:

Real-time SPC, validated data, and AI-driven insights grounded in 40 years of proven process control expertise.

  • Physics-Based Alerts

    Standard SPC rules trigger the moment a process drifts, eliminating the unpredictability that kills your OEE.

  • Expose the Hidden Factory

    Identify the variables causing rework loops that standard dashboards and manual logs miss.

  • Stable Process Capability

    Real-time Cpk/Ppk monitoring that tells you when to adjust—and more importantly, when to stay the course.

  • No Black Boxes

    Our AI tools are an analytical layer that sifts through thousands of data points to find the root cause, grounded in 40 years of SPC logic.

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Real Results, Real Reviews

Reliable, efficient, easy-to-use program with easy report generation. Has paid for itself many times over.
Operations Manager
Food Manufacturer
I have nothing but good things to say about Gainseeker. It makes data collection extremely easy to get to in a short amount of time.
Engineering Technician
Automotive
Our experience has been very positive. The support from Hertzler has been outstanding.
Quality Manager
Food & Beverage
Simple UI - Economical cost - Bug-free operation - Great customer support
Manufacturing Engineer
Biotechnology
Best SPC Software in the World. Yes, I know the title sounds a bit hyped. But the GainSeeker Suite from Hertzler System is really the best SPC software package that I have seen. I have worked with many packages over the years and GainSeeker Suite is hands down the easiest to use for our operators.
Senior Quality manager
Consumer Packaged Goods.
SPC and DMS at its best. This is a great SPC and DMS system and can be adopted to just about anything. We are using this system at 14 plants and working on 1 overseas now. I took some time to learn the template language since it can be used on many different platforms and languages. Also great for importing other applications as well to do SPC reporting and analytic . I highly recommend this software to anyone.
IT Technician Quality Sys Analysis
Food & Beverage
Taking SPC to the next level. Originally, we brought in Gainseeker to deal with some complex machine and measurement system feedback loops. Since then, we have expanded our usage of the software well past that so that it touches nearly every part of our business and the database serves as our main source of shop floor quality data.
Digital Manufacturing Technical Lead
Defence and Aerospace
Our experience has been a real partnership. We have worked together on multiple implementation projects across multiple facilities and they have a great grasp of what we do and how we work. They truly partner with us when implementing something new to ensure seamless implementation, training, and deployment. The speed at which we have launched new projects has been a huge asset and is in no small part to their philosophy of partnership.
Continuous Improvement Manager
Food Production Company
I have stayed with GainSeeker for 20+ years. The software provides exactly what I need and the Hertzler Support Team finds solutions as those needs evolve or if a problem should develop.
Quality Assurance Manager
Electrical/ Electronics Manufacturer
Charting Wizards Sold me. The software is great! The team at Hertzler is top notch as well. They are very helpful when you have questions or want something to work slightly different. They go out of their way to come up with solutions that will work for you.
Senior Quality Systems Leader
Packaging and Containers Manufacturer
4.6 stars and counting! Explore our verified customer reviews on Capterra.
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Flexible Deployment, Uncompromising Quality
Unpredictability in manufacturing is expensive and stressful. Whether you choose the deep control of GainSeeker on-premises or the agility of our cloud-based GS Premier, Hertzler provides world-class SPC solutions designed to restore predictability to your floor.
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GainSeeker Suite (On-Premise)
Installed on customer-managed servers; supports hybrid architectures.
Always Available: Operates on your local network and is unaffected by internet outages.
Enterprises requiring deep customization, local control, and complex integrations.
SPC, OEE, scrap & defect tracking, CAPA, audit trails, and regulatory compliance.
Extensive Python scripting for tailored workflows and complex logic.
Deep integration with MES, ERP, PLCs, and OPC servers.
GainSeeker AI Analyst for advanced correlation and root-cause discovery.
Secure access via internal corporate network (LAN/VPN).
Full customer control of infrastructure, data storage, and update cadence.
Higher – requires internal server maintenance, patching, and IT support.
Perpetual license (starting ~$2,195) plus implementation and maintenance.
Scalable implementation ranging from several weeks to months.
Dimension
Deployment Model
Offline Resilience
Primary Use Case
Core SPC & Quality
Customization
Data Integration
Analytics & AI
Accessibility
Security & Control
IT Overhead
Pricing Model
Implementation
GS Premier (Cloud)
Fully cloud-based SaaS; accessed via web browser.
Offline Data Collection: Built-in caching allows you to continue inspections and save data even if the connection drops.
Organizations seeking rapid deployment, simplified IT, and remote accessibility.
SPC, Cp​/Cpk​, Pareto analysis, real-time alerts, and OEE dashboards.
No-code inspection design; extensible via JavaScript and configurable reports.
Direct RS-232 device connectivity and API-based ERP/MES integration.
AskGS conversational AI for interpreting charts and identifying instability.
Secure access from desktops, tablets, or mobile devices, anywhere with an internet connection.
Encrypted cloud security with automatic updates and vendor-managed infrastructure.
Low – hosting, maintenance, and security handled by Hertzler.
Subscription-based (SaaS) model with lower upfront capital investment.
Accelerated onboarding with minimal setup effort and faster time-to-value.
Regardless of your deployment choice, both platforms utilize the same proven Hertzler statistical engine to ensure data integrity and audit-ready compliance.
Hertzler SPC Solutions
See Hertzler’s SPC Software in Action

A no-pressure, 90-minute technical session tailored to your floor.

What to Expect:

  • Customized Scope: We solve your specific challenges, not a canned script.
  • Proven Results: See how Daikin, Dart, and Reynolds leverage Hertzler to kill waste.
  • Clear ROI: See exactly how we reduce COPQ and cycle times in your environment.
  • Execution Roadmap: A collaborative plan to fast-track your implementation.
Risk-free. No pressure. Just math.
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