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O'Hara's Son Roofing Company (OSR) logo

O'Hara's Son Roofing Company (OSR) Employee Directory

ConstructionIllinois, United States51-200 Employees

OSR, short for O'Hara's Son Roofing, is a Chicago-based contractor formed in 1987. It began as a family-owned business serving residential, commercial, and industrial roofs, but has since redirected its focus to commercial roofing. The firm specializes in new construction, roof replacement, leak repair, and preventive maintenance, pursuing high-quality workmanship with a strong emphasis on safety and clear communication. With nationwide service, OSR maintains consistent standards for clients across the United States. The company operates as a mid-sized commercial roofing contractor headquartered in Chicago, Illinois. In January 2026, OSR announced the acquisition of CP Rankin Inc., a Chalfont, Pennsylvania-based commercial roofing provider, signaling further expansion.

Find O'Hara's Son Roofing Company (OSR) employees' phone numbers or email addresses

O'Hara's Son Roofing Company (OSR) Global Highlights

Location
Employees

North America
91

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  • United States Of America
    91

O'Hara's Son Roofing Company (OSR)'s Leadership

  • Assistant Director Of Operations at O'Hara's Son Roofing Company (OSR)
    J. R.
    Assistant Director Of Operations
    Mobile Phone
  • Regional Sales Service Executive at O'Hara's Son Roofing Company (OSR)
    S. J.
    Regional Sales Service Executive
    Mobile Phone

O'Hara's Son Roofing Company (OSR) Employee Metrics

100%
50%
0%
2026
2025
  • Sales
  • Entrepreneurship
  • Healthcare Services
  • Program & Project Management
  • Accounting
  • Other
  • Civil Engineering & Construction

Contact profiles from O'Hara's Son Roofing Company (OSR)

Name
Title
Contact
Location
Last Update
  • Assistant Director Of Operations at O'Hara's Son Roofing Company (OSR)
    J. R.
    Assistant Director Of Operations
    Mobile Phone
    Apr 29, 2025
  • Regional Sales Service Executive at O'Hara's Son Roofing Company (OSR)
    S. J.
    Regional Sales Service Executive
    Mobile Phone
    Oct 22, 2024

Frequently Asked Questions

What is O'Hara's Son Roofing Company (OSR) known for?

Minus sign iconPlus sign iconO'Hara's Son Roofing Company (OSR) was founded in 1987 and operates in the Construction industry. You can contact O'Hara's Son Roofing Company (OSR)'s main corporate office by phone at
+1-847-255-****
. Explore O'Hara's Son Roofing Company (OSR)'s company overview page for more information.

What is O'Hara's Son Roofing Company (OSR)'s most common email format?

Minus sign iconPlus sign iconO'Hara's Son Roofing Company (OSR) employees' email format typically follows the pattern of First@oharasson.com. Trying to find reliable and up-to-date employee contact data? Find more O'Hara's Son Roofing Company (OSR) email formats with LeadIQ.

How many employees does O'Hara's Son Roofing Company (OSR) have currently?

Minus sign iconPlus sign iconO'Hara's Son Roofing Company (OSR) has approximately 105 employees as of October 2026. These team members are located across 1 continents, including North America.

Who are O'Hara's Son Roofing Company (OSR)'s key employees and leadership?

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As of October 2026, O'Hara's Son Roofing Company (OSR)'s key employees include:

  • Assistant Director Of Operations: J. R.
  • Regional Sales Service Executive: S. J.

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