US · FMCSA ACTIVE HAZMAT
THE HOLDEN CORPORATION
dba MR JOHN
Pittsburgh, PA 15225 · DOT 364088
Company profile
Web-discovered · as of 2026-07-30
The Holden Corporation, doing business as Mr. John, is a specialized service provider based in Pittsburgh, PA, offering portable toilet rental, service, and liquid waste disposal. They operate a private fleet to service construction sites and special events in the regional area.
Fleet use
Specialized service
Operating scope
Regional
Service model
own account
Equipment
specialized
Ownership
Private
Employees
51-200
HQ · 1500 N 4th St, Pittsburgh, PA 15212
Active website (mrjohn.com) and DOT 364088 record confirms operations.
Registry record
Source FMCSA · as of 2026-08-01
Fleet size
43
power units
Activity
road freight carrier
private licence
In operation since
1989
27 drivers
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