History & Owners

Don’s Johns, Inc. was established in 1964 by Thelma and Don Rainwater as a small septic company. Their business was one of the first portable toilet companies in the nation and in the Washington D.C. Metropolitan area. The first toilets were built of wood and constructed as quickly as the orders came in. Over the past 50 years, Don’s Johns has come a long way from the original wooden outhouse. Today, we proudly offer a wide variety of portable restroom and sanitation equipment to our customers. Since the beginning, we’ve provided the Virginia, Maryland and Washington DC Metropolitan area with premier portable sanitation products and service.

Ownership Team

Kristie-website2015Kristie Harrell – Chief Executive Officer
Kristie joined Don’s Johns full time in 1992. She is the granddaughter of founders Don and Thelma Rainwater and started helping at Don’s Johns from the age of 10 stuffing envelopes for billing. She has done every job in the company – from service driver to Quality Control to President.

Kristie has grown the company to become the standard for portable restrooms in the Maryland, Virginia and Washington D.C. Metro Area.

Prior to Don’s Johns full time, Kristie worked as a lobbyist for an Anti-Apartheid Lobbying Firm. She then worked briefly for a law firm before passing up law school to join her families’ business.

Kristie holds a BA degree in International Studies from West Virginia University. She attended the University of Pennsylvania in their international studies program spending time in Nigeria (Africa).


Conrad-website2015Conrad Harrell – 
Conrad joined Don’s Johns full time in 2001. Conrad is responsible for the leadership of the Sales and Marketing departments as well as the implementation of technologies to make Don’s Johns successful. Conrad has brought GPS, Radio Frequency inventory management (SPUD) as well as route optimization (TAC Total Activity Control from Clear Computing) to Don’s Johns.

Prior to joining Don’s Johns, Conrad worked for management consultant PRTM in their strategy practice working for clients such as Nortel, Bay Networks, IBM, IFC World Bank Group, and Leviton Manufacturing. Conrad spent 6 years in the Naval Architecture and Marine Engineer Group of Computer Sciences Corporation working as Project Manager and Engineer for clients such as the US Navy.

Conrad worked through college as a driver, toilet assembler and yard team for Don’s Johns, Inc. Conrad holds a MBA in Strategy and Finance from the Wharton School of the University of Pennsylvania. Conrad has a BS in Marine Engineering Systems from the U.S. Merchant Marine Academy.