AI-Assisted Quality Engineering · Lean Six Sigma · Continuous Improvement

FROM
PROBLEM
TO CLOSED.

Closed Loop Consulting partners with manufacturers and industrial operations to eliminate defects, reduce waste, and build lasting quality systems — backed by 30+ years of combined hands-on quality and operations experience in high-reliability manufacturing.

$200M+
Combined Financial Impact Across Strategic Initiatives
30+
Years Combined in Manufacturing Quality & Operations Leadership
SPC
Power BI Dashboards · Minitab Analysis · Data-Driven Quality
Lean Six Sigma Black BeltGD&TValue Stream MappingDMAIC PPAP / APQPPower BIAI-Assisted WorkflowsRoot Cause Analysis IATF 16949AS9100 Rev DISO 9001Hoshin-Kanri SPC / MinitabCMM / GD&TOEE ImprovementCNC Programming Lean Six Sigma Black BeltGD&TValue Stream MappingDMAIC PPAP / APQPPower BIAI-Assisted WorkflowsRoot Cause Analysis IATF 16949AS9100 Rev DISO 9001Hoshin-Kanri SPC / MinitabCMM / GD&TOEE ImprovementCNC Programming
🔄
Full-Cycle Expertise
Quality engineering and executive operations leadership in a single engagement — from first-part inspection through enterprise process improvement.
📊
Data-Driven Quality
Power BI dashboards, Minitab statistical analysis, and SPC systems that turn quality data into decisions leaders can act on.
🌐
Global Operations Depth
Multi-site P&L leadership across North America, Latin America, Europe, China, Mexico, Brazil, and India.
🎓
Teach What We Do
With engineering teaching experience at SIU, College of DuPage, and TMA, we transfer knowledge to your team — not just deliverables.

What We Do

INTEGRATED EXPERTISE
ACROSS YOUR OPERATION

Patrycja brings quality engineering, standards, and statistical analysis depth. Dennis brings decades of operations leadership, GD&T expertise, and continuous improvement results across global manufacturing. Together they cover the full improvement lifecycle.

⚙️
Quality Management Systems

Design, implement, and certify QMS frameworks meeting the most demanding customer and regulatory standards in aerospace, automotive, and industrial manufacturing.

  • ISO 9001 / AS9100 Rev D / IATF 16949 / TL9000
  • ISO 14001 / ISO 45001 Compliance
  • PPAP / APQP / FMEA / Control Plans
  • GD&T Application & Blueprint Interpretation
  • CMM Programming & Measurement Systems Analysis
  • Supplier Quality Manual Development
  • Internal Audit Programs & Zero Non-Conformance
📊
Lean Six Sigma & CI

Measurable, sustainable improvement through disciplined DMAIC methodology, Value Stream Mapping, and Kaizen events — delivered by certified Black Belts with proven multi-million dollar impact records.

  • DMAIC / Lean Six Sigma Black Belt Projects
  • Value Stream Mapping (VSM) & Kaizen Events
  • Hoshin-Kanri / X-Matrix Policy Deployment
  • SPC, Process Capability & Minitab Analysis
  • OEE Improvement & Throughput Optimization
  • 1-Piece Flow, Kanban & Pull System Design
  • Demand Flow Technology Implementation
🏭
Operations Excellence

Senior operations leadership — improvements in production, supply chain, and organizational design that deliver measurable cost and efficiency impact and hold long after the engagement closes.

  • Multi-Site Operations Assessment & Roadmapping
  • P&L Restructuring & Cost Reduction Programs
  • Global Supply Chain & Sourcing Optimization
  • Warehouse / Inbound Logistics Transformation
  • Talent Development & Progression Modeling
  • M&A Integration & Plant Consolidation
  • Interim Quality & Operations Support
📊Power BI · Minitab · SPC · Data-Driven Quality

TOOLS THAT MAKE
QUALITY VISIBLE

Good quality decisions start with good data. We build the dashboards, statistical models, and tracking tools that turn raw process data into something your team can actually act on — using the platforms you already own.

From Power BI quality dashboards to Minitab capability studies and SPC control systems, we help you see variation, catch problems early, and prove improvement with numbers — and we increasingly use generative AI tools to do that work faster.

📈
Power BI Quality Dashboards
Quality KPI dashboards, supplier scorecards, cost-of-quality tracking, and defect trend reporting built in Power BI — real-time visibility for your quality and operations teams.
📐
Minitab & Statistical Analysis
Process capability studies (Cp/Cpk), gage R&R, hypothesis testing, and DOE — rigorous statistical analysis to support root cause work and validate improvements.
📋
SPC & Control Systems
Control chart design, control plan development, and SPC implementation that keeps processes inside their limits and flags drift before it becomes a defect.
🔧
GD&T, CNC & CMM Support
GD&T application and blueprint interpretation, CNC process knowledge, and CMM measurement support — bridging design intent and shop-floor reality.
🤖
AI-Assisted Quality Workflows
We use generative AI tools in our own day-to-day quality work — drafting QMS procedures and work instructions, accelerating data analysis and reporting, and structuring CAPA and audit documentation. We bring that faster, modern way of working to your projects and can show your team how to apply it responsibly.

Our Process

THE CLOSED LOOP
METHODOLOGY

Every engagement follows the same four-phase process — from identifying the true root cause to verifying that the improvement holds. Nothing is left open.

01
Assess

On-site gap analysis, process mapping, data collection, and baseline measurement. We see your operation as it actually runs — not as the SOP says it should.

02
Analyze

Root cause identification using DMAIC, Fishbone, 5-Why, FMEA, SPC, GD&T review, and Minitab statistical analysis. Data-driven conclusions, no assumptions.

03
Implement

Structured improvement execution with your teams. Control plans, standard work, digital systems, and change management built for durability and operator ownership.

04
Verify

Post-improvement measurement, process capability confirmation, and audit readiness verification. The loop is not closed until the numbers — and the auditors — prove it.

ISO 9001:2015
AS9100 Rev D
IATF 16949
VDA 6.3
ISO 14001
ISO 45001
TL9000
Six Sigma Black Belt
Hoshin-Kanri
PPAP / APQP
FMEA / Control Plans
GD&T / Blueprint Reading
CMM Programming
SPC / Minitab
VSM / Kaizen
OEE Systems
Power BI / SAP
Power BI
Generative AI Tools
CNC Process Knowledge

Industries Served

BUILT FOR
HIGH-STAKES MANUFACTURING

Our principals have held senior quality and operations roles inside the industries we serve. We understand your standards, your customers, and your cost pressures — because we have worked inside them.

✈️
Aerospace & Defense

AS9100 Rev D, FAA compliance, first article inspection, GD&T interpretation, and precision manufacturing QMS design.

🚗
Automotive

IATF 16949, VDA 6.3, PPAP, APQP, OEE improvement, and Tier 1 / Tier 2 supplier quality development including PPM reduction to near-zero.

Electronics & EV

High-power connector quality, EV supply chain containment, defect reduction programs, and electro-mechanical assembly quality systems.

📡
Telecommunications & Wireless

TL9000 compliance, zero-defect programs for Verizon, US Cellular, and wireless infrastructure manufacturers across metal fabrication and composite manufacturing.

🔧
Industrial & HVAC

ISO 9001 implementation, warehouse operations, inbound logistics quality, compressor and refrigeration assembly CI programs.

🌎
Global / Multi-Site Operations

Multi-site management across North America, Latin America, Europe, China, Mexico, Brazil, and India — P&L, plant consolidation, and M&A integration.

The Principals

PRACTITIONERS FIRST.
CONSULTANTS SECOND.

Closed Loop Consulting pairs a seasoned operations executive with a dedicated quality engineering specialist — two professionals who have spent their careers inside the quality and operations functions of the industries they now serve.

PP
Patrycja Pezan, MSE
Principal Quality Specialist
M.S. Quality Engineering Management, SIU · B.S. Industrial Management & Applied Engineering, SIU

Patrycja brings over 15 years of quality engineering experience across aerospace, automotive, and electronics manufacturing. She has worked in QMS implementation, supplier quality development, Six Sigma project execution, and process capability improvement at scale. She is skilled in Power BI dashboarding, Minitab statistical analysis, and SPC, and applies GD&T and CMM knowledge to support precision manufacturing clients from blueprint review through measurement validation. She actively uses generative AI tools to accelerate documentation, analysis, and continuous improvement work, bringing a modern, efficient approach to traditional quality engineering. She holds a B.S. in Industrial Management & Applied Engineering and an M.S. in Quality Engineering Management, both from SIU.

Power BIMinitab / SPCAI-Assisted Workflows Six SigmaAS9100 IATF 16949ISO 9001/14001 VDA 6.3PPAP / APQP GD&TCMM SAPM.S. Quality Eng. (SIU)
DP
Dennis Pezan, MSE, MBA
Principal — Operations, CI & Business Transformation
M.S. Industrial Systems Engineering, USC · MBA Operations, Colorado Technical · B.S. Manufacturing Engineering, Cal Poly Pomona

Dennis is a C-suite operations executive with 30+ years leading global manufacturing, lean transformation, and business initiatives totaling over $200M in documented financial impact. His experience spans VP and Director roles at Electri-Flex, Amphenol, BorgWarner, and Ingersoll Rand across automotive, aerospace, telecom, biometric, and industrial sectors. Fluent in English and Spanish, he has managed multi-site P&L operations across five continents with $300M revenue responsibility. An active engineering faculty member at SIU and former instructor at College of DuPage and TMA, he teaches GD&T, CNC, blueprint reading, and manufacturing processes — a level of technical depth that is rare at the executive level.

Lean Six Sigma Black BeltHoshin-Kanri GD&T / Blueprint ReadingCNC Programming ISO 9001/14001/45001AS9100 / TL9000 IATF 16949APQP / PPAP OEE SystemsP&L / EBITDA M&A IntegrationGlobal Supply Chain Bilingual EN/ESSIU Faculty

By the Numbers

RESULTS THAT
SPEAK IN DOLLARS

Selected aggregate outcomes from Patrycja and Dennis’ combined careers — the same methodologies, tools, and discipline brought to every client engagement.

$200M+
Strategic Business Impact Over 20+ Years
$300M
Revenue Under Direct Operations P&L Responsibility
99%
PPM Improvement (872 → 13) Automotive Tier 1
$20M
Per-Facility Savings via M&A Integration
80%
Overtime Reduction via 4-Shift Model
1.67
Cpk Achieved — General Motors Line (from 1.0)
0
External Audit Non-Conformances Sustained YoY
100%
Throughput Increase via 1-Piece Flow & Pull System

Case Studies

THE LOOP
CLOSED.

Representative engagement outcomes across quality engineering, operational excellence, and AI-enabled CI disciplines.

Electronics / EV Connectors
High-Power EV Connector Defect Reduction — Tier 1 Manufacturer

End-to-end containment-to-closure quality program for a high-power EV connector product line. DMAIC root cause analysis, GD&T-informed dimensional review, process capability improvement, and supplier corrective action across the supply chain.

67%
Defect Reduction
1.67
Cpk Achieved
Automotive / Tier 1 — BorgWarner
PPM Reduction & OEE Transformation — Transmission Technologies

Comprehensive quality and operations improvement across metal fabrication, clutch assembly, and packaging automation. Implemented automatic inspection equipment, Bluetooth wireless gage data collection, 4-shift operator model, and IATF 16949 certification.

99%
PPM Improvement (872→13)
.83
OEE (from .33)
Telecom / Wireless — Amphenol
Multi-Site Lean CI Program — 5 Wireless Infrastructure Plants

Led process improvements across 5 manufacturing sites. Reduced lead time 50%, eliminated all customer rejects at fiber pedestal line, reduced unit cost 25% via Design for Manufacturing, and delivered $1.5M annualized savings through Hoshin-Kanri policy deployment.

$1.5M
Annualized Savings
50%
Lead Time Reduction
Industrial / Global Supply Chain — Ingersoll Rand
M&A Integration & Supply Chain Transformation

Plant consolidation of three manufacturing businesses across CA, CO, and NJ. Delivered $20M per facility in cost reductions, $2.6M inventory reduction, doubled inventory turns, and 66% supplier DPM reduction at program inception.

$20M
Per-Facility Savings
Inventory Turns

Get Started

START WITH A
FREE ASSESSMENT

Every engagement begins with a no-cost preliminary assessment. We identify your highest-impact opportunities — quality, operations, or AI/technology — before any commitment is made.

📍
Headquarters
Saint Charles, Illinois · Serving clients nationally & globally
✉️
Email
patrycjapezan@closedloopconsulting.net
🏭
Primary Markets
Aerospace · Automotive · Electronics · Telecom · Industrial
📊
Tools We Build
Power BI Dashboards · Minitab Analysis · SPC · Control Plans
📋
Engagement Types
Project-based · Retainer · Interim Executive Leadership