JENNMAR Executive and Leadership Team

Tony Calandra, the Chief Executive Officer, Jennmar Holdings LLC at JENNMAR, directs the overarching strategy and corporate vision for the global manufacturing and engineering entity. Calandra oversees the company's expansion into demanding industries like mining, tunneling, and civil construction, ensuring the delivery of specialized ground control products and solutions. This leadership role involves guiding the development and implementation of engineered support systems, steel structures, and resin products that are critical for safety and performance in challenging environments. Tony Calandra also champions the company's integrated approach, leveraging a network of affiliates to serve infrastructure markets globally. The Chief Executive Officer's focus remains on enhancing operational efficiency and stability through reliable products and expert technical support, solidifying JENNMAR's market position. This executive drives the company's commitment to innovation and customer-centric solutions across all underground and aboveground construction applications.

David Jefford, the Chief Financial Officer at JENNMAR, manages all fiscal operations and financial strategy for the family-owned manufacturing and engineering company. Jefford directs the financial planning, budgeting, and investment activities essential for JENNMAR's global operations, particularly within the mining, tunneling, and civil construction sectors. Overseeing financial reporting and risk management, the Chief Financial Officer ensures compliance and optimizes capital allocation for engineered support systems and custom fabrication projects. David Jefford plays a critical part in maintaining the financial health and stability required to support the company's extensive network of affiliates and its worldwide service to infrastructure markets. This executive's responsibilities include securing funding for research and development of advanced ground control solutions and ensuring the profitability of operations that enhance safety and performance in challenging environments. Jefford's financial acumen supports JENNMAR's integrated approach to improving operational efficiency and stability.

Michael Portwood, the Chief Operating Officer at JENNMAR, directs the day-to-day operational execution and efficiency across the company's global manufacturing and engineering functions. Portwood oversees the production and delivery of ground control products and solutions, including engineered support systems, steel structures, and custom fabrication, ensuring they meet stringent safety and performance standards for industries such as mining and tunneling. The Chief Operating Officer manages supply chain logistics and optimizes manufacturing processes to enhance operational efficiency and stability worldwide. Michael Portwood also coordinates the activities of JENNMAR's network of affiliates, ensuring a cohesive approach to serving infrastructure markets. This executive's focus is on streamlining operations, implementing best practices in challenging environments, and supporting the technical expertise provided to clients from initial consultation through field application. Portwood drives the reliable delivery of products that improve underground and aboveground construction applications.

Brian Delloma, the President at JENNMAR, leads the strategic direction and market engagement for the global manufacturing and engineering company. Delloma spearheads initiatives to expand JENNMAR's reach in demanding sectors like mining, tunneling, and civil construction, focusing on the delivery of specialized ground control products and solutions. This leadership role involves fostering relationships with key industry partners and overseeing the development of engineered support systems, steel structures, and custom fabrication tailored for safety and performance. Brian Delloma drives the company's integrated approach, ensuring its network of affiliates effectively serves infrastructure markets worldwide. The President's mandate includes enhancing operational efficiency and stability through innovative products and comprehensive technical expertise. Delloma's leadership ensures JENNMAR's commitment to providing reliable solutions that improve underground and aboveground construction applications, reinforcing the company's reputation for excellence.