Meet the folks who have the privilege of leading the best team in the industry.

Curtis Berry

Vice President of Engineering and Chief Information Officer

Curtis Berry came to Jamison in 1997 and serves as Vice President of Engineering and CIO. His role at Jamison has expanded from his start as Cold Storage Product Manager and has grown to include production engineering, R&D, IT applications and the BMP joint venture. He and his wife have 3 daughters and 2 grandchildren. Curtis is a licensed commercial pilot and flight instructor and is active in the Civil Air Patrol, Angel Flight East, Pilots ‘n’ Paws and the EAA Young Eagle Program where he has given over 300 youth an opportunity to experience flight at no cost to them.

Dave Briggs

Dave Briggs

Vice President Manufacturing

Dave Briggs joined Jamison in January 2012 as Operations Manager in Hagerstown. Dave trained as a Metallurgist and then earned a BS in business from Madison University. He has over 35 years of manufacturing experience in the fabrication and foundry industries. He worked for Pangborn Corporation, a leader in surface preparation equipment as a Metallurgist in charge of manufacturing at their abrasive plant and later Plant Manager of the Hagerstown MD plant. When Pangborn moved to Atlanta, Dave joined Empire Steel as Plant Operations Manager and later Canam Steel as the Structural Steel Manager then into project management for projects such as the Jets/Giants stadium, the Alexander Hamilton Bridge project and others. He has been an avid outdoorsman all his life. He’s also a loyal and avid Pittsburgh Steelers fan who rarely misses watching a game. He and his wife have raised three daughters.

Dwight Clark

Dwight Clark

President and Chief Executive Officer

Dwight Clark joined Jamison in 2001 as Vice President of Sales and Marketing. After graduating from the University of Puget Sound with a BA in Music and Business, Dwight worked for the Jet Propulsion Lab in in Pasadena, CA, in financial planning. Hired as an accountant he was promoted to financial analyst doing cost and variance analysis for some of the technical divisions and also doing reconciliation of the prime contract with NASA. Desiring to own his own business, Dwight purchased a manufacturer’s representative company, J-C Sales Company, also located in southern California, and kept it for 15 years. His door line was Butcher Boy until its sale in the late 1990’s when he then added the Jamison line. While running J-C Sales, he created a small manufacturing company making impact traffic doors but closed it after 5 years to focus on the bigger opportunity of selling insulated panels along with Jamison doors. Having been in the industry for almost 30 years has given Dwight the knowledge of the cold storage industry so critical to Jamison’s success. He and his wife have one daughter. He is also a great golfer with a 5 handicap.

Tom Lewis

Tom Lewis

Vice President, Sales of HCR

Tom Lewis joined Jamison/HCR as Vice President, Sales for HCR in 2010 and has been instrumental in its continued success. After graduating from Ohio University with a BBA and then earning an MBA from the Keller Graduate School of Management, Tom began his career with Paul Reilly’s startup of Rytec. In the 8 years there he had progressively more responsible roles selling high speed rollup doors. From there he was first recruited by Megadoor and then Dynaco in sales management positions. After selling other construction materials with two different companies Tom joined Jamison/HCR to lead our air door sales effort.

An Ohio native, Tom now resides in Greenville, SC and is an avid biker, determined to stay in good shape. His enthusiasm in all aspects of his life is contagious and adds much to his sales effectiveness.

Greg Lloyd

Greg Lloyd

Vice President Administration and Chief Financial Officer

Greg Lloyd has been with Jamison since 2005 and serves as Vice President Administration and Chief Financial Officer. A Summa Cum Laude graduate of the University of Baltimore with a BS in Accounting, Greg is a CPA. He worked 11 years for Coopers & Lybrand and was responsible for managing multiple audits for manufacturing, high tech and healthcare clients. In 1994 he became Vice President of Finance and Administration for Tristate Electrical Supply Co., a $100 million distributor. They made and digested two acquisitions and grew to be a $200 million company. After Tristate sold to a Dutch company, Greg became Controller for Garden State Tanning, a $300 million manufacturer of leather for car seats, dashboards and accessories. They had a total of 9 plants and he managed the finance departments of each location. He has been key to improving Jamison’s financial reporting as well as banking and insurance relationships.

He has a wife, two sons, two daughters, and four grandchildren. He is active in the community serving as Treasurer and later Chairman on the boards of United Way Washington County and Leadership Washington County. He has also served on the board of two local little leagues and his church. He enjoys golfing, spending time with the grandkids, and all Baltimore sports teams.

Boyce Martin

Boyce Martin III

Executive Vice President and General Counsel

Boyce Martin III, a native of Louisville, KY, serves as Executive Vice President-General Counsel & Secretary of Jamison and has been a member of the Board since 1997. Boyce is a 5th generation Jamison. He is a graduate of Kenyon College with a BA in history and was a four-year letterman, all-district and region, Captain and MVP of Kenyon’s soccer team. He received a JD from Boston University’s School of Law as a Edward F. Hennessey Scholar and began his legal career as an attorney at Frost Brown Todd, LLC, in Louisville. He has been deeply involved in Jamison in the last few years, playing a key role in the acquisition of HCR in 2004, the formation of the joint ventures in Mexico in 2004 and BMP in 2012, and formation of Jamotuf in 2015. He has been very active in numerous community service projects in Louisville serving on a several boards and capital campaigns. He continues to live in Louisville with his wife and 3 daughters and, in addition to his Jamison responsibilities, manages family real estate and other investments.

Ignacio Garcia Sancho Muriel

Ignacio Garcia Sancho Muriel

Jamison Door LatinoAmerica General Manager

Ignacio García-S Muriel joined Jamison Door LatinoAmerica as a General Manager in 2012. He studied Industrial Engineering and graduated from Universidad Iberoamericana, and obtained his MBA from Ipade Business School. His experience began as the National Sales Director for Mine Safety Appliance México in 2008. In 2010, he served as the Peixe Urbano Country Manager. Ignacio’s years of professional experience led him into management for Jamison JDLA.


Dan Rhyner

Vice President of HCR, Inc

Dan Rhyner, an Illinois native, is Vice President of HCR, Inc. and a key player in the proliferation of air doors. He first attended Elgin Community College in Illinois then transferred to Montana State University to earn a BS degree in Mechanical Engineering where he was #1 in his class and received the Gold Medal Award for Outstanding Graduate from The College of Engineering at Montana State. He first worked as a design engineer for Nordyne, Inc. in St. Louis, Missouri designing residential and light commercial air conditioning and heat pump systems. Next was designing large point of use air conditioning and heating systems for commercial and military jet aircraft for Jetway Systems in Ogden, Utah. He and his wife and two young children love living in Montana where he spends his spare time fishing, hunting, woodworking and cycling.


Peter Smith

President of HCR Inc

Pete Smith succeeded his father, George, as President of HCR Inc in 2003 and has held that position since. Pete was born in Syracuse, NY where George worked as a design engineer for Carrier Corporation. While at Carrier, George had the rare opportunity to listen to Willis H. Carrier, the “Father of Psychrometrics” speak. Twenty years later George would use his background in Applied Psychrometrics to design re-circulatory air curtains for the frozen food industry and start HCR Inc. Pete joined his father at HCR in 1988 after working for 11 years in aviation maintenance and the aerospace fields. Pete has a BS in Aerospace Engineering from the University of Maryland. When not at work he restores / builds vintage machines such as motorcycles and airplanes. He says his greatest accomplishments are teaching one daughter how to fly, riding and racing dirt bikes with another daughter, building a Baja Bug street rod with his son, and holding on to his loving wife of 31 years.

John Stocks

John Stocks

Vice President Retail / Food Service Solutions

John Stocks joined the Jamison team in September of 2018 as Vice President Retail / Food Service Solutions. He is based out of his office in Texas. John brings 30 years of industry experience from construction, installations, manufacturing, operations, business management and sales. He and wife Glenda were married in 1981 and are blessed with 2 children and 1 grandchild. John and his family founded the Kaufman County Christian Center in Texas. Faith, Family and Friends are the connecting points at KCCC. John’s business experience is driven by defining customer opportunities and bringing sustainable solutions.

Maria Elena Urrutia

Maria Elena Urrutia

General Manager of Jamison Door LatinoAmerica

Maria Elena Urrutia came to Jamison Door LatinoAmerica in September 2015 as a General Manager. She is a graduate of UPIICSA Unidad Interdisciplinaria de Ingenieria, Ciencias Sociales y Administrativas del Instituto Politecnico Nacional IPN in Business Administration. She did some profesional courses after school including Management studies in the ICAMI. She started her laboral experience in a Company of Frica Group. Maria Elena was General Manager of Frigocel Mexicana, S.A. de C.V. for several years and then was General Manager of Espumados de Estireno, S.A., both EPS Expanded Poliestirene Companies. Her time in the EPS environment enabled her to accumulate knowledge about termal isolation and construction. The history and trajectory of Jamison Door and Jamison Door LatinoAmerica played a pivotal role in Maria Elena joining the team. She enjoys spending time with her family, dancing, and traveling.

John Williams

John Williams


John Williams became Jamison’s Chairman, President and CEO in 2000 at the request of his son-in-law, Matt Wyskiel.John had semi-retired and was living in Florida but was excited about the challenge of leading Jamison. After earning a BBA from Baylor University and a MBA from the Wharton School at the University of Pennsylvania he went into the US Army for two years and then worked as a Certified Public Accountant on the audit staff for Ernst & Ernst in San Antonio,Texas. From there he joined Harte-Hanks, an NYSE media company becoming its Treasurer before moving into operations. He was general manager of the San Angelo (TX)Standard-Times, Publisher of the Bryan-College Station (TX) Eagle and then President of the Harte-Hanks Community Newspapers in the Dallas (TX) suburbs. Next was a stint as President, Garden State Newspapers before becoming President/CEO of Gray Communications Systems, Inc. (now Gray Television). During his tenure, Gray went from the pink sheets to being listed on the NYSE. Gray owned several newspapers and television stations as well as some other non-media related businesses.

John now lives in Baltimore with his wife of 54 years. They both enjoy time with their children and grandchildren and traveling. He is also on the Board of Directors of the University of Maryland Medical System, the National Association of Manufacturers and the Maryland Chamber of Commerce.

Feature Product:
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PCAV® Push-Thru Conditioned Air Vestibule

A conditioned air vestibule that uses a push-to-open versus a motorized opening.
U.S. Pat. No. 10,921,049 and Patents Pending

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Jamison Mexico:

The largest manufacturer of temperature controlled doors in Mexico.

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Jingxue manufactures the Jamison HCR product line for all of China.

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