Hanna / Olin Ltd
United States
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Hanna / Olin Ltd was founded by Laurie Olin and Robert Hanna, and is based in United States.
Key facts
- Industry
- landscape architectural firm
About
American office for landscape architecture, active in Philadelphia
Founders
Founder
1500 Founder Rating
Founder
1500 Founder Rating
In context
We hold 30 other landscape architectural firm companies. 1 of them have closed, after a median of 63 years, and 29 have no closure recorded.
Counted across this directory, from founding and closing years in public records. Medians cover only companies whose closure is recorded; a company with no closure date may have quietly ceased without the record catching it.
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