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Our Team

Operating multiple manufacturing facilities in a diverse combination of high-tech to skilled trades, I.W. Tremont delivers value and quality everytime.

The Leadership Team

Just some of our team members who you may interact with on a daily basis.

Jim Averso

Jim Averso

Co-President, Partner

About Jim Averso

Jim Averso is a Co-President and Partner who is primarily engaged in Sales and Marketing at I.W.Tremont. He has been with the company for 31 years. He explained that his lifelong interest in technology, science, and engineering brought him to work for the family business. Jim plays a vital role in establishing relationships, facilitating growth, building distributor and OEM business and commercializing products. He is also instrumental in product development. He finds appropriate markets, sets up marketing campaigns and more. With lots of work on his plate, Jim loves what he does as he explained, “the prospect of new applications and technology is exciting here”. Jim enjoys working with the team and sees them all as family, especially the family who works with him.   When not working Jim enjoys his various charity work and is the president of a philanthropic organization. He loves spending time with his family and traveling with them.

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Ed Kemp

Industrial Filtration Sales Lead

About Ed Kemp

Ed has been with Filter Holdings for 18 years. He has actively worked and trained others in virtually every capacity at the Union NJ facility. Ed is extremely knowledgeable about industrial filtration processes and products. In his spare time, he enjoys reading, writing and rooting for the Philadelphia 76ers.

Carol Lindenmayer

Carol Lindenmayer

Office Administrator 

About Carol Lindenmayer

Carol Lindenmayer is an Office Administrator at I.W.Tremont and has been with the company 12 years. Carol first came to Tremont with no prior experience in the Laboratory and Scientific products field, but she had years of experience in office administration and customer service. Using that background, a fantastic work ethic and devotion to her job she has kept the front office operations working very well through change and improvement. She has a deep understanding of our customer relationships and individual roles of the team. During my interview with her she made it very clear that her favorite part about working here was working as a team with everybody and watching the company grow everyday. Carol is one of the very first impressions customers receive when calling or emailing. Outside of work Carol enjoys gardening, traveling, reading, and spending time with her family.

Andy headshot

Andy Averso

Co-President, Partner

About Andy Averso

Andy Averso is Co-President and Partner who is primarily engaged in Operations at I.W.Tremont. He has been with the company for 29 years. Andy was interested in joining the company as he explained he always had the intention of continuing the family business. In his long time with the company, Andy’s favorite part about working here is working with his brother Jim, son Andrew, nephew Porter, and in previous years his father Sal. Andy plays a very important part of how I.W.Tremont runs by overseeing all internal operations and physical plant. Andy has a strong interest in the products I.W.Tremont manufactures, where they are used and their function. When Andy is not in the office, you will either find him spending time with his family or performing. Andy is an avid musician and enjoys primarily playing guitar, playing with his band Soul Runner, and making YouTube videos.

Josh DeJong

Josh DeJong

Account Coordinator

About Josh DeJong

 Josh DeJong is an Account Coordinator at I.W.Tremont and has been with the company for about 12 years. In the time that Josh has worked here, he takes comfort in his position and his confidence in the work he completes. Josh plays a key role in processing order traffic through production to shipping. He also coordinates the flow of work orders, inventory control, customer graphic design and packaging labels. With his years of experience at I.W.Tremont, Josh explained his interest for all of the different places the company’s products are used. He explained, “It makes you feel good knowing you are actually doing something to help”. When he is not in the office, Josh enjoys building and maintaining his own computer, origami, and playing video games.

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Paul Silverthorne

Process Scale Life Sciences Sales Lead 

About Paul Silverthorne

Paul has over forty years of engineering and sales experience in the chemical and pharmaceutical process industries. Mr. Silverthorne has been in the filtration manufacturing industry since 2005.

Gus Aponte

Gus Aponte

Quality Manager

About Gus Aponte

Augusto (Gus) Aponte is the Quality Manager at I.W.Tremont and has been with the company for 8 years. Gus came to I.W.Tremont as he explained, “as he wanted to be part of a small team doing big things rather than a big team doing small things”. Gus manages a role in virtually all aspects of product realization and quality. Being the Manager of Quality, ISO and directly involved in production he gets to work closely with the entire team. Gus has brought I.W. Tremont through 8 successful ISO audits and has built a very strong quality assurance program. He has an interest in how the products impact people’s everyday lives and it mesh’s well with his lifelong interest in engineering. In his free time Gus enjoys hiking, traveling, and is also a Cub Scout Master.

Jennifer DeLorenzo

Jennifer DeLorenzo

Office Administrator 

About Jennifer DeLorenzo

Jennifer DeLorenzo is an Office Administrator at I.W.Tremont and will be with the company for 1 year. Jen enjoys a short commute to work and loves how the job description suits her. When interviewing, she also explained, “It felt like it would be a long-term job, like a sense of security”. Within a relatively short time here she felt at home and enjoys working with her co-workers, as well as the many different types of customers I.W.Tremont serves. Jen has responsibility for many tasks such as initial processing of orders, invoicing, filing, and much more. When she is not working, Jen likes to bake and spend time outdoors, especially hiking.

Salvatore J. Averso

Salvatore J. Averso

Founder, President & CEO Emeritus

Deceased 2021

Salvatore founded I.W. Tremont with the same enthusiasm, demand for quality and the highest business ethics as the company demonstrates today. Started in 1979, a particularly challenging economic period in the United States, he clearly demonstrated an entrepreneurial spirit that was ahead of his time. When leaving a large international firm with dominance in the analytical filtration industry to start his own company, Sal relied heavily on his strong scientific research background and a work ethic passed down from generations of family business owners. This powerful combination proved to be a successful one that would lead the business well into its second generation and beyond.

Being the proud father of Jim and Andy, he had hoped that one day they and his grandchildren would join him at the company to help realize his vision of what he knew it could be. Sal did get opportunity to work alongside the third generation of Averso’s in the business, albeit briefly as he had an intense battle with a rare cancer to fight, and fight hard he did. He sadly passed in July of 2021 and is missed every day.

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I.W. Tremont

Find the Right Technical Paper for Your Application

Since 1979, I.W. Tremont has produced high-quality filtration and specialty media for laboratories, diagnostics, and technical applications—combining material science expertise with exceptional service.