John Corsi

CEO | COO | Board Member

Charlotte Metro

About

As a senior executive with extensive accomplishments developing and implementing transformative strategic plans, I consistently over-achieve targets and deliver excellent performance. Growing up in the midwest with a mom (registered nurse) who was raised on a farm and a dad (WWII veteran) who was 1st generation Italian-American, I was taught "If you're going to do something, do it right!" As a result, I have a personal standard of excellence in all that I do. My leadership style focuses on building and maintaining trust with hourly and salaried teammates through clear communication, setting high standards and holding team members accountable, and doing it in a way that motivates and inspires others to achieve the highest possible performance. I lead by example and recognize that personal engagement is key to effective leadership. The breadth of my experience is distinctive from most roles leading P&L, to include manufacturing, logistics, and sales. I've grown from being an Army platoon leader, to night shift supervisor, engagement manager, within consulting, industry, and technology for startups and established firms.

Experience

  • Chief Executive Officer - North America at Grenzebach Group
    Mar 2025 - Present · 1 yr 5 mos

    Responsible for the profitable growth of Grenzebach across all businesses in North America. This includes Grenzebach Corporation Building Materials, Millennium Control Systems, Millennium Power Systems, and Grenzebach Data Center Solutions.

  • Chief Operations Officer at Charter Next Generation
    Nov 2022 - Dec 2024 · 2 yrs 2 mos

    Directly managed EVP Operations & Engineering, Chief Procurement Officer, VP Sustainability, VP Technical, VP's Manufacturing (2), and Director Logistics with a total team of 2,000. Continued the alignment and integration of two recently-merged companies. - Achieved year-over-year increase in EBITDA. Launched Margin Improvement Teams resulting in annual savings through raw material, technical design, freight, recycling, and packaging cost savings. - Increased share price valuation. - Designed and produced mono-material packaging which achieved volume growth year-over-year and earned "how to recycle" letters of designation for CPG customers. - Implemented Lean tools, including Manage for Daily Improvement (MDI) and Single Minute Exchange of Dies (SMED) resulting in increase in Gallup Engagement scores and reduction in changeover times.

  • National Gypsum Company (Charlotte, North Carolina, United States)
    • Senior Vice President, President of Building Products / Operations
      2020 - 2022 · 2 yrs

      Co-owned P&L responsibility for ~80% of the company’s revenue. Managed VP Technology & Innovation, Regional Manufacturing Managers, and Directors of Sustainability, Engineering, Procurement, Supply Chain, and Logistics. - Achieved average year/year improvement in EBITDA. Led EBITDA Improvement Teams resulting in significant annual savings through raw material, labor cost reductions, and freight cost reductions. - Managed through the COVID-19 Pandemic with decisive action on cost control and employee safety. - Immediately cut labor costs at start of pandemic, with furloughs across eight plants. Hired back furloughed employees within one year. - Cut capital expenditures, preserving cash flow to ensure survival. - Created Customer Service Excellence and Efficiency Teams, bringing together sales and operations teams to work together. Cut missed orders and reduced changeover downtime by increasing Make-To-Order SKU’s and reducing Stock SKU’s.

    • Vice President, Manufacturing Operations & Engineering
      2011 - 2020 · 9 yrs

      Managed directly three Regional Manufacturing Managers and Directors of Safety, Quality & Continuous Improvement, Engineering, Supply Chain, Logistics, Procurement, and SAP. Led weekly meetings including CFO, VP Sales & Marketing, Sales Directors, and direct reports, generating strategies to service customers and optimize EBITDA. - Served as Company Champion for SAP Implementation, replacing legacy systems into one instance of SAP ECC on Hana database. - Achieved record performance in safety and quality, the best in the history of the company in both, including Total Case Incident Rate and Percent Defective. - De-certified eight union plants including Teamsters, United Steelworkers, and Boilermakers, transitioned to and retained non-union status.

    • Vice President, Business Development
      2005 - 2011 · 6 yrs

      P&L responsibility for business units including Interior Finishing Products and Cement Board. Products sold to independent Gypsum Supply Distributors, Mass Merchandisers, and Tile Distributors. - Directly managed two Business Unit GM’s, CFO, Sales & Marketing, and Regional Managers of Manufacturing & Operations.

  • Chief Operating Officer - Connection to eBay at Accenture
    2002 - 2004 · 2 yrs

    Startup joint venture between eBay and Accenture providing auction management, logistics software, and services to Fortune 500 companies opening eBay as a sales channel. - Responsible for all operations functions, including finance, auctions, logistics, customer service, information technology, and professional integration services.

  • Interim CEO and Vice President Supplier Sales & Business Development at KETERA TECHNOLOGIES INC
    2000 - 2002 · 2 yrs

    Startup e-procurement joint venture between American Express, Kleiner Perkins, and Ventro Corporation. - Served as Interim CEO and subsequently led key functions within the company. Served as VP Business Development for Ventro Corp. during incubation phase.