Leadership

Neal Goldenberg

Chief Executive Officer

Neal Goldenberg, PTI Tech’s CEO, has been integral to the successful operation and growth of his family-owned-and-operated manufacturing company since joining in 1997. As a requirement for employment, he worked in every department within the organization, including quality, production, engineering, purchasing, program management, finance, marketing, and sales. In doing so, he has top-down knowledge of what makes for a successful business and an appreciation for the importance of having a dynamic, client-focused culture throughout the organization. Since assuming the role of president in 2013, Neal has achieved his primary goals of building his senior management team, developing strong client relationships, and continuing the transformation of PTI Tech’s performance-driven culture through core values and hands-on involvement.

In 2015, Neal identified the strategic need to vertically integrate injection mold construction capability. This ultimately led to the successful acquisition and integration of a local injection molding tool company. The result was a substantial increase in profit margins and significantly shortened program lead times. In 2018, Neal recognized the disruptive impact of additive manufacturing/3D-printing technology on the manufacturing industry. In response, he established a partnership with DesignPoint Solutions (now Hawk Ridge Systems) to construct a 3D-print lab “Center of Excellence,” which runs the latest technology in additive manufacturing of plastics, metals, and composites, at PTI Tech’s facility in Clifton, New Jersey.
 
Neal serves on several boards and organizations, including Society of Plastics Engineers (SPE), New Jersey Manufacturing Extension Program (NJMEP), Manufacturers Network of New Jersey, and the New York Chapter of EO (Entrepreneurs’ Organization). Neal has his undergraduate degree in finance from UMass Amherst and earned an MBA from the NYU Stern School of Business, with a co-major in entrepreneurship and operations management.

Chris Hoffman

Executive Vice President

Chris Hoffman serves as Vice President of Operations, bringing over a decade of proven leadership in engineering and manufacturing. With expertise in metal stamping, injection molding, and automation, he has delivered high-impact results across the automotive, medical, and biopharmaceutical industries, earning a reputation for driving efficiency and strategic vision.

With a B.S. in Mechanical Engineering from NJIT and a Master’s in Engineering Management from Penn State, Chris combines technical expertise with a deep understanding of production systems, lean manufacturing, and quality control.

Chris is driven by a commitment to engineering and manufacturing excellence—where precision, quality, and customer focus are embedded into every process. Under his direction, the team operates with agility, innovation, and a relentless focus on delivering high-performance solutions that consistently exceed both industry standards and customer expectations.

Guy Mariella

Chief Technology Officer

A veteran of material science and metallurgy, Gaetano (Guy) brings to PTI Tech over three decades of engineering experience in designing solutions for the military, aerospace, medical, and electronics industries.

Under his guidance, the engineering team at PTI Tech develops and delivers best-in-class products and manufacturing processes that leverage the advantages of combining both engineered polymers and metals. Guy’s innovative thinking and development of refractory powder metal techniques and polymeric processing have helped hundreds of clients solve complex problems, from medical devices to military hardware.

Prior to bringing his intellect to PTI Tech in 2015, Guy’s work in powdered metals engineering includes over 20 years of experience at Bayer MaterialScience and H.C. Starck Inc. (formerly Kulite Tungsten Corporation), where he served as director of process control and development. In this role, he was responsible for production and process control, new process creation, and research and development. He spent another 10 years at Kulite Semiconductor Products Inc. where he served in multiple roles, including Director Supply Chain, Senior Manufacturing engineer, and Program Manager. Guy estimates that throughout his career, he has sintered over 30 million pounds of powder metal products.

A leader in manufacturing engineering, R&D, injection molding, and powdered metallurgy, Guy has presented several papers at major conferences and holds multiple patents. Guy received his degree in metallurgy and material science from NYU Tandon / Brooklyn Polytechnic.

Michael Wiseman

Director of Sales & Marketing

Michael Wiseman serves as Director of Sales & Marketing at PTI Tech, where he leads the company’s commercial strategy, business development, customer engagement, and marketing initiatives. With more than 15 years of experience in the plastics and metals industries, Michael brings a unique combination of technical expertise, engineering leadership, and commercial experience to PTI Tech’s continued growth. His focus is on developing strategic customer relationships and identifying opportunities where PTI Tech’s engineering and advanced manufacturing capabilities can solve complex customer challenges.

Since joining PTI Tech in 2023, Michael has played an integral role in expanding the company’s customer base, developing new business opportunities, and strengthening relationships across the defense, aerospace, medical, and industrial markets. He works closely with customers and PTI Tech’s engineering and manufacturing teams to evaluate new programs and guide opportunities from initial concept and technical review through commercialization and production. His background enables him to bridge the gap between customer requirements, engineering solutions, and long-term commercial strategy.

Prior to joining PTI Tech, Michael held several engineering and executive leadership positions at ARC Group Worldwide, including Vice President of Engineering. Throughout his career, he has led multidisciplinary engineering teams, managed complex new product development programs, supported global manufacturing operations, and served as a technical leader for customers across a variety of demanding applications. His experience spans plastic injection molding, metal injection molding (MIM), precision tooling, advanced materials, and manufacturing process development.

Michael earned a Bachelor of Science in Plastic Engineering Technology with a minor in Business Management from Pennsylvania State University and a Master of Engineering Management from Duke University. He has also been actively involved with industry organizations including the Metal Injection Molding Association (MIMA) and Metal Powder Industries Federation (MPIF), serving in a variety of board, technical committee, and conference leadership roles. At PTI Tech, Michael combines his technical foundation and commercial leadership to help strengthen the company’s position as a trusted U.S.-based manufacturing partner for complex, mission-critical applications.

Michael Warren

Director of New Product Development & Quality

Michael Warren serves as PTI Tech’s Director of New Product Development & Quality, bringing over 15 years of experience in engineering, quality systems, and operational excellence. Since joining PTI Tech in 2015, Michael has advanced through roles of increasing responsibility—from Project Engineer to Engineering Program Manager, then Quality Assurance Manager—before assuming his current leadership position. In this capacity, he oversees all aspects of quality assurance, compliance, and continuous improvement across PTI’s manufacturing operations.

Throughout his tenure, Michael has been instrumental in strengthening PTI Tech’s quality management systems and leading the organization through successful audits for ISO 9001 and AS9100 certifications. He is focused on advancing PTI’s culture of operational excellence through data-driven quality initiatives and cross-functional collaboration.

Prior to joining PTI Tech, Michael spent five years as an Engineer with Becton Dickinson (BD), where he gained valuable experience in product development, validation, and process improvement within the medical device industry.

Michael holds a Bachelor of Science in Mechanical Engineering and an MBA with a concentration in Leadership and Consulting, both from Binghamton University. Known for his hands-on leadership style, he empowers his team to identify and resolve issues at the source, fostering a culture of quality, accountability, and continuous improvement throughout the organization.

Brenda Vega

Senior Production Manager

Brenda Vega serves as Senior Production Manager at PTI Tech, bringing more than 20 years of experience in manufacturing and operations, including production planning and logistics. Since joining PTI Tech in 2015, Brenda has advanced through roles of increasing responsibility, including Expeditor, Production/Logistics Supervisor, Production Planning Manager, and now Senior Production Manager.

In her current role, Brenda is responsible for coordinating production planning and execution, aligning staffing, capacity, and manufacturing priorities with business needs and customer commitments. She works closely with Quality, Logistics, Engineering, Purchasing, Planning, and other cross-functional teams to align priorities, address constraints, and maintain focus on delivery requirements.

Her progression at PTI Tech has given her experience across multiple areas of the operation and a strong understanding of how those functions work together throughout the manufacturing process. Brenda partners across functions to align production priorities, resource needs, and customer commitments, supporting the quality, reliability, and teamwork that contribute to PTI Tech’s continued growth and reputation.

Eric DelNero

Director of Manufacturing Systems

Eric DelNero serves as the Director of Manufacturing Systems at PTI Tech, where he oversees the company’s technical capabilities across Polymer Molding, Metal Injection Molding, CNC Machining, Manufacturing Engineering, Facilities, and Environmental, Health & Safety.

With more than 15 years of manufacturing experience across the medical, automotive, aerospace, and defense industries, Eric brings a broad background in manufacturing engineering, automation, tooling, and operational leadership. He has led multidisciplinary teams and managed the development and launch of new programs, with a focus on building robust, scalable manufacturing processes and supporting long-term operational performance. 

Eric also brings extensive experience in lean manufacturing, continuous improvement, quality systems, ISO compliance, and process optimization. In his role at PTI Tech, he works across the organization to strengthen manufacturing capabilities, advance technical solutions, and support the company’s continued growth.  Eric holds a B.S. in Mechanical Engineering and Engineering Management from Syracuse University.

Chad Milliman

General Manager of Polmold

Chad joined PTI Tech in March of 2020, bringing with him 30 years of expertise in precision toolmaking and leading toolroom teams, R&D molding, manufacturing engineering, and injection molding across US aerospace, medical, and automotive industries.

Chad’s technical manufacturing and mold making expertise, combined with his leadership skills, commitment to continuous improvement, and state-of-the-art processes required for high-precision industries, made him a perfect fit to lead Polmold’s tooling operations.

In three short years, Chad has made a tremendous impact at Polmold. Improvements include streamlining operations, reducing waste, improving quality control, and leaps in productivity. He has also led the modernization of Polmold facilities, including new GF+ High Speed Mills, Sinker and Wire EDMs, adding capacity, precision, and speed.

In addition to technical and leadership expertise, Chad has brought a wealth of industry contacts and has expanded Polmold’s customer base to help grow the business.

Chad also is deeply committed to his American toolmaking and machinist craft. Recognizing the need to train and develop the next generation of talent, Chad created the Polmold Apprenticeship program. Drawing heavily from nearby Lincoln Technical Institute, this program will help to ensure the bright future of the toolmaking craft and US manufacturing.

Tina Okun Smith

Director of Human Resources

Tina Okun Smith brings more than 25 years of leadership experience in human resources and business operations across complex organizations, including Fortune 500 environments. She has built and led high-performing teams, implemented scalable systems, and aligned people strategy with operational execution to support sustained growth.

Throughout her career, Tina has partnered closely with executive leadership to translate business strategy into workforce planning, performance management, and organizational development initiatives. She has overseen talent acquisition, retention strategy, learning and development platforms, and HR infrastructure, ensuring teams are structured and supported to deliver measurable results.

Earlier in her career, Tina held senior global operations roles overseeing large-scale shared services organizations, multi-million-dollar budgets, and cross-border teams. She drove measurable productivity gains through staffing redesign, vendor optimization, and process improvement initiatives grounded in Six Sigma principles, while maintaining service continuity during periods of significant organizational change.

Tina holds a Bachelor of Arts in Business Administration and Marketing from Muhlenberg College and maintains certifications in Six Sigma Quality Management and Total Quality Leadership.