Leadership 

Jim Petersen
President and Chief Executive Officer

David Van Beek
Chief Operations Officer
David Van Beek joined PetersenDean as co-owner and vice president of Finance in 1990 after a successful career at a Big 8 accounting firm and subsequently as the operations manager of a large, publicly held retailer. David now serves as PetersenDean's chief operating officer. He is active in the Western States Roofing Contractors Association, the National Association of Roofing Contractors and the Building Industry Association. He also volunteers for Catholic Charities, the Make-A-Wish Foundation and Habitat for Humanity. David holds both general contractor’s licenses and roofing licenses in several states. He earned his B.S in Accounting from Santa Clara University.

Joe Dean
Senior Vice President, Re-roof Operations
As PetersenDean's senior vice president, Joe Dean oversees all re-roofing operations. A certified journeyman and master craftsman, Joe co-founded PetersenDean in 1984. Throughout his years with the company he has trained scores of roofing crews, imparting technical expertise and his values around doing roofs right. Joe participates in the Western States Roofing Contractors Association, the National Association of Roofing Contractors and the Building Industry Association.

Micheal Clifton
Vice President, Solar Solutions

Michael Clifton joined Petersen-Dean after 34 years as CEO of MC Solar Engineering when PetersenDean acquired MC Solar in 2007. He has overseen the installation of more than 6000 solar systems in California and other states, and has taught several solar classes at San Jose State University and San Jose City Colleges Solar Programs. Mike earned his BS Degree in Engineering from Stanford University and MS Degree from San Jose State University. He is NABCEP certified solar engineer, California-licensed contractor in general building, solar, electrical, plumbing, and sheet metal, while also holding contractor’s licenses in Florida, Arizona, and Nevada.

Aaron Nitzkin
Executive Vice President, PD Solar
Aaron Nitzkin brings to Petersen-Dean an extensive background in business development, sales, and marketing, having worked for both start-ups and Fortune Global 500 companies. These companies include The Walt Disney Company, Kobe Steel, Knowledge Universe, and Sharp Electronics. Since 2002, he has been pursuing his passion for green building and solar energy. Through his work at OCR Solar & Roofing, he was instrumental in dramatically increasing adoption of solar by homebuilders throughout California. Aaron is fluent in Japanese, earned an MBA from Stanford University’s Graduate School of Business, a BA from Indiana University, and is a member of Phi Beta Kappa.

David Morosoli
Vice President, Solar Commercial and Retrofit 

Vice President of Northern California and Reno Operations, David Morosoli joined PetersenDean in 2004 after 15 years working in the computer and electronic industries. A retired captain in the United States Army, Dave holds a B.S. in Industrial Technology from San Jose State University and a minor in Military Science. He is an active member of the California Professional Association of Specialty Contractors.

Dieter Folk
Senior Vice President, Northern California and Reno
Dieter joined PetersenDean in 2009. He has 30+ years in the roofing industry and his company, Old Country Roofing, was the first NHBA certified roofing company in the United States. More recently, he was the owner on OCR Solar and Roofing, Inc. and partnered with BP Solar in providing state of the art turnkey solar roofing systems. Dieter is a licensed California general building, roofing and insulation contractor and holds a Nevada contractor's roofing license. He is the current President of the Northern California Association of Roofing Contractors, a chapter of CALPASC, and has taken an active role in CALPASC to help review and set standards for subcontractors in the roofing business.

R. Michael Momboisse
Executive Vice President, Strategic Development

Mike formerly served as President of OCR Solar & Roofing, acquired by Petersen-Dean in 2009. Before joining OCR, Mike served as Of Counsel in the Corporate Department of Carr & Ferrell LLP where he specialized in mergers and acquisitions, corporate financings and general corporate law. Prior to that time Mike also served in a variety of different roles including Vice President and Co-Manager of the Shugart Venture Fund and Chief Financial Officer/Vice President Corporate Development for EMCON, a NASDAQ-listed environmental engineering, consulting and construction company where he oversaw the strategic growth and eventual sale of the company. Mike earned his BSC Degree in Accounting from Santa Clara University and his JD from the University of California at Los Angeles School of Law

Jay Petersen
Executive Vice President, National Sales and Analytics

Jay Petersen joined PetersenDean in March 2009, bringing with him over 20 years of experience in senior leadership positions in Sales, Service Delivery, Operations and Finance. Jay's previous experience includes both domestic and international positions with Cisco Systems, Telcordia, Hewlett-Packard and Pacific Bell, leading and developing diverse sales and delivery teams across multiple countries in Asia, and The Americas. Jay holds a Bachelor of Science Degree from the University of San Francisco and is fluent in Spanish and conversational Japanese.

David E. Stumbos
Chief Legal Officer
David Stumbos joined Petersen-Dean in 2007 as Senior Vice President, Chief Legal Officer. After a successful career as a civil trial attorney, David joined Centex Homes where he held regional and national positions in the legal department. Based in PetersenDean's San Francisco office, David has practiced law since 1980. He is a graduate of the University of California, Davis and Hastings College of the Law.

Brian Owen
Senior Vice President, LA/Central Region
Following family tradition, Brian Owen is the third member of his family to pursue a career in roofing. Applying the broad base of his liberal arts undergraduate degree, including a B.A. in Economics and Business, Brian focuses on continually improving PetersenDean's core competencies: strength and flexibility. He is a board member of the Roofing Contractors Association of California.

David Morgan
Senior Vice President, Las Vegas
David Morgan is General Manager of Red Rose, Inc. a subsidiary of PetersenDean located in Las Vegas, Nevada. There, Dave has spent more than 35 years in the roofing business. He began as a tradesman, became a supervisor and estimator, and later an owner of Red Rose, one of Southern Nevada's most well-recognized roofing companies.

Gregory O'Donnell
Senior Vice President, Inland Empire Region
Gregory O'Donnell joined PetersenDean in 2003. Today he leads the Inland Empire, Orange County and San Diego regions for PetersenDean, overseeing operations including construction specifications, estimating, project budgeting, and sales activities. A California-licensed contractor in general building, roofing, and sheet metal, Greg is involved in the Building Industry Association's San Diego and Inland Empire divisions, as well as the Western States Roofing Contractors Association.
 

David Wikel
Senior Vice President of Florida Operations
David Wikel has more than 20 years of experience in the commercial roofing industry. He began a career in Sales and Estimating with Therma Seal Roofs in 1986 and purchased the company in 2002. When Therma Seal Roof Systems, Inc. was acquired by Petersen Dean in 2008, Dave became the regional manager for Petersen Dean in charge of four divisions in Florida. He is a past board member of the Florida Roofers and Sheet Metal Association, and is currently a director with The Boys and Girls Club of Palm Beach County. Dave holds a degree in Business Administration from Duke University. 

Johannes Moehnle
Chief Information Officer
In his role as Chief Information Officer, Johannes Moehnle oversees all aspects of PetersenDean's accounting and information systems. Johannes became a consultant in the United States in 1978, designing and establishing accounting and information systems after earning degrees in business administration, communications, and electronics. For 18 years prior to joining PetersenDean in 2003, he served as controller and IT manager for Pacific Coast Roofing.

Jason Brinkmann
Senior Vice President, Texas
Jason Brinkmann is division manager of Brinkmann Roofing Company Inc., a subsidiary of PetersenDean located in Houston, Texas. Jason oversees daily operations of Brinkmann's corporate headquarters in Houston and three additional locations throughout Texas. He has served as general manager of Brinkmann for the eight years prior to joining the PetersenDean team in 2007. He earned his B.A. in Business Management at Texas A&M University.

Craig Dallas
Vice President of Sales and Marketing, Southeast Division
Craig Dallas joined Petersen Dean in October 2007 after an extensive career in sales and marketing within the building materials industry. He was with Boral Industries for more than 13 years and prior to that he worked with the Masco Corporation. After graduating from Duke University, Craig began his career at RJR-Nabisco, working at the company’s corporate office in the operations, sales, and marketing areas. Craig's primary focus is to use his experience in building national alliances with the country's top builders and commercial contractors to implement PetersenDean’s strategy to grow our business from Florida into the Souheastern United States.

Steve Amend
Senior Vice President, Santa Rosa
Steve Amend joined PetersenDean Roofing and Solar Systems in 2007 when his company, Roofing Services Inc., was acquired by PetersenDean. Having served as president of RSI for 20 years, Steve has more than 31 years of experience in the roofing industry. He is a past president and treasurer of the Independent Roofing Contractors of California as well as a trustee and instructor for the Contractors of California’s State Approved Apprenticeship Program. A past Rotary president, Steve remains an active Rotarian and is involved in community service projects for Habitat for Humanity and Rebuilding Together. He graduated from California State University, Long Beach, with a degree in History and Anthropology