
About Us
Mission Statement
Our mission is to be the top choice for facility services across commercial, educational, healthcare, and government sectors, delivering exceptional service and complete customer satisfaction.
Vision Statement
We aim to enhance client well-being through clean, safe environments while supporting our employees with better conditions, career growth, and training in advanced technologies.

Company History
Proudly family-founded and minority-owned since 1985, CJM has grown into a trusted, certified leader in facility services and the largest minority-owned janitorial company in Maryland.
1985
C J Maintenance, Inc., a janitorial service firm, was established by James and Kristine Choe as a sole proprietorship.
1992
Certified as a Minority Business Enterprise to the Maryland/DC Minority Supplier Development Council (MSDC).
2000
Baltimore and Washington Business Journals ranked C J Maintenance second (2nd) of all janitorial companies.
1996
Certified as a Maryland Department of Transportation Minority Business Enterprise (MBE) and a Minority Owned Business Enterprise of Baltimore City.
1990
The company was incorporated in the state of Maryland, and increased its employee base to 100 full-time and part-time employees.
2005
Began providing other facility and general maintenance services.
2007
Obtained Green Seal Certification.
2011
Acquired a new building and moved our offices to a larger location, still in Columbia, Maryland, to accommodate our growth.
2012
Nearly thirty (30) million square feet of office and industrial space cleaned on a daily basis.
2013
Received the CIMS-GB Expert certification for multiple individuals; progressing to CIMS-GB certification company wide.
2014
Certified as a Minority Business Enterprise by the Capital Region Minority Supplier Development Council (CRMSDC).
2015
Over thirty (35) million square feet of office and industrial space cleaned daily.
2016
Ranked as the second largest Minority Business Enterprise by the Baltimore Business Journal.
2020
Expanded our services into New Jersey.
2025
Moved into our new building at 9730 Patuxent Woods Drive in Columbia, MD.
2025
40th Anniversary! 1985 to 2025
