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Meet Our Team

Ralph Lary, CEO - Managing Partner

Ralph Lary

CEO - Managing Partner

Ralph L. Lary, III is the Managing Partner/ Founder of Arena Technical Resources, LLC (ATR) in Rockville Md., and is responsible for the executive management of a full service information technology consulting and staffing company. Prior to ATR, he was the Vice President and General Manager, DC Region, for Spherion, a global technology services company, and Senior Consultant with Price Waterhouse. Ralph is a University of Maryland, College Park graduate, with a Bachelor's of Science in Aerospace Engineering and Master's of Business Administration in Finance and Marketing. Ralph grew up and still resides in Potomac, Maryland, and when he’s not working at ATR he enjoys working on Laryland, his family farm in Maine, and spending time with his wife Nancy and two sons, Leon and Roswell.

Nancy Lary, CFO - Partner

Nancy Lary

CFO - Partner

Nancy Lary earned her undergraduate degree in Economics and received a Master's in Business Administration. Nancy began her career in Economic Research before entering the Price Waterhouse Office of Government Services management consulting. Ms. Lary was hired from Price Waterhouse to create the IT department at a fast growing Dental Benefit company and eventually was promoted to Vice President of IT and Claims Processing.   Nancy retired for a few years to raise her two sons who both graduated from the United States Naval Academy and continue to serve in the Navy as Nuclear Officers. Ms Lary returned to work for Arena Technical Resources in Human Resources and Financial Management. She continues in this function today and has been with ATR for 12 years. 

Charles Tenly, COO - Partner

Charles Tenly

COO - Partner

Charles joined ATR in January 2009 and works to continue to grow the company with a focus on day-to-day operations and business development. He has over 14 years of experience in the staffing and recruiting arena. His experience ranges from working with Fortune 50 companies to assisting the growth of small startups. Charles is extremely passionate about the industry and enjoys working with individuals and organizations helping them grow their career and companies.  Charles graduated with his Bachelor's in Communication from University of Maryland.  In his spare time you can find him and his wife chasing their two young kids around parks or ball fields. He is a die hard Terps and Skins fan!  

Michael McKenna, Partner

Michael McKenna


Mike became a partner in 2005 (ATR began in 2002) with business partner Ralph Lary III and Charles Tenly. Now in its fourteenth year of business, ATR continues to grow organically year over year by refining the successful business model process that has been the backbone of the company’s success.  Mike and his wife, have two children one currently a college sophomore and one working in health care. In his spare time, Mike enjoys golf, running and traveling. Family and friends say that Mike is “incredibly positive” and approaches his personal life as well as his business with a can-do attitude. 

Brett DellaPenna, Partner

Brett DellaPenna


After graduating from Auburn University in 2008, Brett started his career in outside sales working for a telecommunications and information technology company in Atlanta, GA. He ended up back home in 2010 where he started his career in IT Staffing at ATR. As a Senior Technical Recruiter/Account Manger, Brett helps to train and develop new recruiters. He prides himself on building strong relationships with both candidates and clients. Brett is an avid sports fan and loves rooting for the Auburn Tigers.  War Eagle!  

AJ Dalasio, Recruiting Manager

AJ Dalasio

Recruiting Manager

Born in Scranton, PA (home of “The Office”), AJ is a graduate of The Catholic University of America and has been with ATR since 2014. He started off as an intern and through building client and candidate relationships has become one of the top producers here at ATR. When he’s not placing candidates, AJ enjoys cooking, playing video games, and watching movies (and is a huge Star Wars fan).

Don Bacon, Account Director

Don Bacon

Account Director

Don joins ATR with 22 plus years of IT Staffing and Solutions experience. Prior to ATR he was with Randstad, a global HR / Staffing Recruiting company. His primary role the last 15 years was in their Strategic Account Organization with a focus on driving both business and delivery for a Fortune 100 client. He looks forward to parlaying that experience into success with ATR and is excited to be able to mentor others who are newer to the industry. Don is a graduate of University of Maryland- College Park with a Bachelor’s in Criminology / Psychology Minor . He and his wife Denise reside in Bethesda, Maryland. They have two children, a son who graduates from college in May and a daughter who is finishing up year one in college. Don loves to cook, read fiction paperbacks and is still active in competitive softball.

Matt Benz, Account Manager

Matt Benz

Account Manager

Born and raised in Bethesda, Maryland, Matt has been working at ATR as a Technical Recruiter since early 2015. Talking to new people and helping connect IT professionals with exciting opportunities drives him on a daily basis. Outside of working at ATR, you will usually find Matt at one of three places: College Park to watch Maryland Terrapins Football & Basketball; Chinatown to root for the Washington Capitals at Verizon Center; or playing a round of golf at his home course TPC Potomac.

David Rondon, Account Manager

David Rondon

Account Manager

David joined Arena Technical Resources because the leadership (Charles Tenly, Ralph & Nancy Lary) would allow him to utilize his strengths in order to reach his personal and professional goals. He believes in the mission and vision that the company has and continues to pursue. He is grateful to be living in the suburbs of Maryland, on the outskirts of  Washington, D.C. where there is the option of solitude or being able to drive into the heart of the city, enjoying the diversity and energy that the most powerful city in the world showcases. David spends his free-time reading, listing to music, exercising, football, baseball, and basketball.

Samuel Loman, Account Manager

Samuel Loman

Account Manager

Sam is from Kensington, Maryland and is a recent graduate of the University of Maryland, College Park where he attained a Bachelors of Science in Finance & International Business with a minor in Spanish Language, Business, and Cultures. During his time at Maryland he completed a two year scholars program that focused on business, society, and the economy. Additionally, Sam loves traveling and was able to go on a short study abroad trip to the United Arab Emirates and a full semester abroad in Barcelona, Spain. When Sam isn’t at work you can find him rooting on the Capitals, Redskins, Wizards and Nationals. Sam loves helping others and is excited to be able to do so on a daily basis while at ATR. 

John Cosgayon, Technical Recruiter

John Cosgayon

Technical Recruiter

John is a recent graduate of Christopher Newport University in Newport News, VA with a BA in Communication and a minor in Sociology. During this time at CNU, he spent time on the martial arts club team and also led a worship team for one of the college ministries. He has a 3rd Degree Black Belt in martial arts and has been training since he was six years old and had started to teach when he was twelve years old. He is a self-taught guitar player, but he's learned to play the piano years ago. Helping different kinds of people towards one overall goal is something that John has had lots of experience with so he felt that ATR would be a great place for him to further develop his leadership and communication skills and truly apply himself as one of the newest members of the ATR team! 

Rachel Frumkin, Technical Recruiter

Rachel Frumkin

Technical Recruiter

Rachel was born and raised in Montgomery County Maryland and she is a recent graduate from Towson University. She received a Bachelors of Science in Psychology with a minor in Family Studies. During her time at Towson, Rachel was the Vice President of her sorority, Alpha Epsilon Phi. Rachel spends her free time water skiing with her family as well a rooting for the Redskins, Nationals, Capitals, Wizards and Terps (except on the rare occasion when they play Towson). Rachel enjoys almost any activity that involves being outdoors and is excited about being a part of the ATR team.  

Heather Clarke, Technical Recruiter

Heather Clarke

Technical Recruiter

Heather was born and raised in Germantown, MD and graduated from West Virginia University in 2015. She received a Bachelor of Science Degree in Sport and Exercise Psychology with a minor in Disability Studies. During her time at WVU, she was a member of the Sport and Exercise Psychology club and volunteered in numerous events to give back to the community which is something she greatly enjoys. Heather is a big fan of all WVU sports and the Baltimore Orioles, and you can often catch her at an O’s game during the summer. Heather looks forward to gaining new experiences and is very excited about being a part of the ATR team.

Chris Backes, Technical Recruiter

Chris Backes

Technical Recruiter

Originally from St. Louis, MO, Chris is a graduate of Loyola University New Orleans. He moved to the DC Metro area for a Master’s program in philosophy at CUA. After deciding to transition out of academia, Chris joined ATR in 2018. When he isn’t at in the office, Chris enjoys practicing his French, cooking, and the occasional Marvel movie. Chris looks forward to the challenges of a new environment and is eager to learn more skills while at ATR.

Callahan O'Meara, Technical Recruiter

Callahan O'Meara

Technical Recruiter

Raised in the small town Cranbury, NJ (exit 8A off the New Jersey Turnpike) and recent graduate of Salisbury University with a BS in Marketing. Named after a Clint Eastwood movie character, Dirty Harry Callahan, he enjoys all things outdoors, The Sopranos, and playing basketball. Avid sports fan of the New York Giants, UMiami Football, Brooklyn Nets, and Orioles and loving son to Bob and Anita and brother to sisters Logan and Madeleine. Callahan enjoys learning about people and looks forward to the opportunities and challenges that ATR has to offer. 

Brandon Thompson, Technical Recruiter

Brandon Thompson

Technical Recruiter

Brandon was born and raised in Montgomery County Maryland and is a recent graduate from The Citadel, The Military College of South Carolina. He earned a Bachelors Degree in Business Administration focusing on sales, marketing and finance. He is a die hard Washington D.C. sports fan and loves rooting for his skins. Brandon loves traveling and was able to study abroad in Cyprus, a small island in the Mediterranean sea. When Brandon isn’t busy at work you can find him playing basketball, golf or fishing in some pond. Brandon loves interacting and serving others and looks forward to opportunities and growing within ATR.

David Giampetroni, Technical Recruiter

David Giampetroni

Technical Recruiter

David was born and raised in Rockville, Maryland where he attended Montgomery College and received an Associate’s Degree in General Studies. Afterwards, he was accepted to the University of Maryland, College Park and was awarded a Bachelor’s of Arts Degree in Communication Studies with a focus in Sociology. David is driven by connecting IT candidates with promising opportunities where they can grow professionally and succeed in their career. If David is not working in the office, he can be found bass fishing at any freshwater lake or pond in the Montgomery County area or fishing for stripers at the Chesapeake Bay. David is looking forward to working with the ATR team because of their motivation to win and their opportunities for advancement. 

Chris McKenna, Business Analyst

Chris McKenna

Business Analyst

Before coming to ATR was the Vice President and Treasurer of Phi Sigma Kappa at Towson University. Chris helped organize fundraisers and social events throughout the university which helped the fraternity build a stronger network with the Towson community. Outside of work, Chris spends his time at his home in Annapolis where he enjoys watching Ole Miss on Saturdays, the Ravens on Sundays, and playing golf in the off-season. Chris looks foreword to working with the team over at ATR.

Aileen Grau, Human Resources Generalist

Aileen Grau

Human Resources Generalist

Aileen was born and raised in Rockville, Maryland and is a recent graduate of the University of Mary Washington in Fredericksburg, Virginia. She graduated with a Bachelors of Science in Psychology and a minor in Business Administration. While there, she was also the manager of the basketball team for two years. When she’s not working, she enjoys hanging out with friends, reading, and volunteering at her local animal shelter. Aileen is very excited about joining the ATR team and looks forward to learning new strategies and growing within the company.

Bart Teems, ATR's IT GUY

Bart Teems


He does our IT stuff...

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