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Mary Adelsberger

Owner & CEO

Mary is the passion, creativity, and drive behind AAC. With her 15 years of organizational development and sound & vibration control experience, she has built an awesome team. Every person is a team player and an expert in the industry while having the passion to provide you with the best experience possible. She works extremely hard not only for the success of the company, but for the happiness of her team. She has a hand in almost everything we do including assembly and install. 

 In the famous words of Jeb Blount: "Before we do anything we have to review it with Mary."


Adam Adelsberger
Director of Sales & Architectural Sales Executive

As a mechanical engineer, machinist, custom designer/fabricator with 20 years in the sound & vibration control field (working with Mason, Kinetics, & VMC), Adam is the brain behind AAC. Adam's favorite part of the job is serving our customers and instills that in all of us.


Little known fact - Adam is a part-time Jimmy Hoffa investigator and he predicts ol Hoffa is in a jacked up floor somewhere in Baltimore.

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Tim Maggi
Architectural Sales Consultant

Tim is one of those people you just feel good around. His gracious attitude and genuine interest in the lives of others makes him gem to work with. Tim as been in the industry of helping companies and individuals get the results they want for over 10 years. He is here to serve and make your (and our) lives easier. 


Tim works side-by-side with Adam in architectural sound and vibration control. They make an awesome team.


Jonathan Lininger
HVAC Sales Executive

Jonathan has been on the AAC team since 2018 and has quickly become an expert in HVAC vibration isolation. Jonathan's tenacity, reliability, and accessibility makes him a fan favorite. He says the best part of the job is helping our customers and building long-lasting friendships. He not only strives to be the best everyday, but he mentors others on the team so they can do the same. 

His favorite hobbies are hunting, fishing, golfing, and sunning himself like a cat on the beach while drinking a cold brewski in an AAC koozie.


Chris Gove
HVAC Sales Consultant

Chris started his career in the commercial mechanical field as a tech for Shapiro & Duncan. So when he started as our estimator and bid coordinator he was already in the driver's seat. Chris doesn't just throw numbers out there; he makes sure he has the most complete and accurate estimate as possible to help our customers plan their budget to the best of their ability.

When he's not bidding jobs in the DMV, he's Chris-Crossing the country as a roadie for his hero and mentor Lil Skies.

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Corey Huntley

Corey's bio to come.... 


Ron Stonesifer

Logistics Administrator

Starting in 2018, Ron has become an expert on all products AAC. His many years in the logistics field has made him a great asset to our team.  Together with Cindy, he is the reason we can have such a large inventory and can get you what you need, when you need it. You can always rely on Ron. 

After the company Holiday Party of 2018, Ron shipped Chris to the Marshall Islands. It was so funny! Classic Ron.


David Bodnar

Submittal Coordinator

Dave is our chameleon. He can do any task you put in front of him. His creativity, passion, drive, and humility makes him an amazing resource for our team. Although his main focus is submittals, he also is our graphic design/marketing go-to and will pitch in for assembly and install whenever needed.


Cindy Lockard

Sales Administrator

As our most experienced team member, she knows the industry inside and out. Her first and last job ever started 50+ years ago with Frank J. Dean Co. She continues to be a wealth of knowledge and support for the team.


Cindy served as an operative for MI-6 before joining AAC. The 2016 film, The Accountant, was inspired by many of her past missions.


Our Evolution


Our history goes back to 1965, when Frank J. Dean Co. was first established earning a well-respected reputation for supplying sound and vibration control products in DC, Maryland, and Northern Virginia.


Since 2004, we have worked with the  the top three sound and vibration control manufacturers in the US (Mason Industries, Kinetics Noise Control, and The VMC Group), AAC Independent has developed an unparalleled expertise that ensures our customers will receive the most superior sound and vibration control products and services available.


AAC Independent was established in 2016. Then in 2017, we acquired the Frank J. Dean Company.



Today and every day, AAC Independent strives to make the world a more peaceful place – from our personal interactions and collaborative work environment to the control of sound and vibration. We differentiate ourselves by using respect, humility, integrity, and dependability to guide us in our decisions, and to ensure the most positive experience for our customers.​