California contractor license
OTTO H ROSENTRETER CO
- A General Engineering
- B General Building
- C-61 / D21 Machinery And Pumps
OTTO H ROSENTRETER CO is an A General Engineering, B General Building and C-61 / D21 Machinery And Pumps contractor in El Segundo, Los Angeles County, licensed in California for 64 years (since 1962). As of Dec 12, 2025, the license is active with an expiration date of Oct 31, 2027 on record and a license bond is on file.
OTTO H ROSENTRETER COA General Engineering · B General Building · C-61 / D21 Machinery And Pumps · checked Dec 12, 2025
ActiveLicense number#212038
Licensed sinceSep 11, 1962
Years licensed64 years
Expiration on recordOct 31, 2027
City and countyEl Segundo, Los Angeles County
License bondOn file
ProjectsNone on file
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Dec 12, 2025.