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Greg Buchner / President

Greg Buchner has served as President of CleanOffice since 2002 and oversees all day-to-day operations of the company. In addition, Greg focuses on identifying and implementing strategies to effectively expand the company's operations and its ability to serve its clients.

Greg is a graduate of James Madison University with a degree in Business Administration.  His professional career has been centered around B2B sales and Client Relationship Management with a focus on Commercial Property Services.

As President of CleanOffice, Greg has overseen the company’s growth from a small operation with less than 10 employees to a full-service company with over 300 employees.  Highlights of this successful run are noted below:

  • Reston Chamber of Commerce – Medium Business of the Year 2005

  • Washington Business Journal – Green Business Finalist 2009

  • Washington Business Journal Top Commercial Cleaning Companies 2009-2017

  • BSCAI New Member of the Year 2016

  • GreenSeal GS-42 Certification 2009-2017


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Rene Brunal, RBSM / Director of Operations

Oversees all aspects of service-delivery to our clients on a daily basis.

Rene Brunal comes to CleanOffice, Inc. and brings over 20 years of janitorial and facilities experience.  He has held virtually every operational position from day-porter to Vice President, and has worked with leading building service contractors throughout the Mid-Atlantic region.  Throughout his 20+ year career, he has supported high level clients in all sectors of commercial real estates (Shopping Malls, Retail, Corporate Headquarters, Commercial Office, Educational Institutions and Healthcare Facilities). 

Originally from Colombia, South America, Rene currently lives in Frederick, MD with his wife Sara, his son Chris, and daughter Alice Marie. During his spare time, he enjoys spending time with his family, traveling, and photography.


Heather Parker, RBSM / Director of Client Services

Heather Parker was originally hired by CleanOffice in 2004 and handled a variety of customer-oriented roles that helped her form a deep base of knowledge in the building-services industry.

In her role as Director of Client Services, Heather is in charge of overseeing all aspects of the client-experience and will focus on client-retention and expanding existing client relationships. Heather is an active member of BSCAI and serves as the Vice President/President Elect for the Mid-Atlantic Chapter.

Heather is fully bilingual in English & Spanish and is a graduate from George Mason University with a B.A. in Psychology. She currently resides in Delaplane where she enjoys relaxing with her two “kids”, Dexter the French Bulldog and Charlie the Greyhound.


Dennis Emison – Controller / Director of Accounting

Dennis Emison joins CleanOffice with nearly 20 years of experience in Accounting and Management.  He is a 25-year Northern Virginia resident who has worked in Property Management for nearly his entire career. 

He has led Accounting teams as small as 3 employees and as large as 30 employees.  

Dennis went to Woodbridge High School and he graduated with a degree in Business Management from West Virginia Wesleyan College where he also played baseball for all 4 years.  Dennis is an avid animal lover.


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Alba Mathewson/HR Manager

Alba Mathewson joined the CleanOffice team at the end of 2018 as their HR Manager.

Alba has a BS in Behavioral Science, an MPA and a PHD-ABD in Public Policy and Administration.  She has several years Human Resources experience in a variety of functions including recruiting, employee relations, benefits, training & development and compensation. She has over 20 years experience in the mental health field as a social worker/therapist.

Originally from Brooklyn, NY, Alba has lived in Northern Virginia for nine years with her husband and children. She's currently working on her dissertation based on Hispanic immigrants in the labor force.