What departments does O'Hara's Son Roofing Company (OSR) have?

O'Hara's Son Roofing Company (OSR) has employees across 8 departments including Operations, Finance, Civil Engineering & Construction, Program & Project Management, Sales.

What is the largest department at O'Hara's Son Roofing Company (OSR)?

The largest department at O'Hara's Son Roofing Company (OSR) is Operations with 4 employees.

Where are O'Hara's Son Roofing Company (OSR) employees located globally?

O'Hara's Son Roofing Company (OSR) has employees across 2 continents and 2 countries including Ireland, United States Of America.

How has O'Hara's Son Roofing Company (OSR)'s team size changed over time?

O'Hara's Son Roofing Company (OSR)'s team has decreased from approximately 64 to 60 employees based on available data.

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.

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

North America
88

United States Of America
88

Europe
1

Ireland
1

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

B. M.
Chief Operating Officer
Mobile Phone
Email
K. W.
Corporate Controller
Mobile Phone
Email
A. B.
Director Of Fp&a & Treasury
Mobile Phone
Email
D. G.
Director Of Lead Generation & Sales Operations
Mobile Phone
Email
J. A.
Senior Director, New Construction
Mobile Phone
Email
J. R.
Assistant Director Of Operations
Mobile Phone
Email
S. C.
Director Of Operations
Mobile Phone
Email
R. T.
Traveling Project Manager
Mobile Phone
Email

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 Info

Location

Last Update

T. W.
Estimator Of New Construction
Mobile Phone
Email
United StatesNorth Carolina
May 31, 2026
L. B.
Service Formen
Mobile Phone
Email
United StatesTexas
May 30, 2025
N. F.
Accountant
Mobile Phone
Email
UNITED STATES
Nov 19, 2024
S. J.
Regional Sales Service Executive
Mobile Phone
Email
Oct 22, 2024
J. H.
National Sales Executive - Sled
Mobile Phone
Email
United StatesMissouri
Mar 26, 2026
J. S. K.
Manager Of National Service Operations
Mobile Phone
Email
United States
Aug 08, 2025
M. K.
Administrator Of Roofing
Mobile Phone
Email
United StatesMichigan
Apr 16, 2026

Frequently Asked Questions

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

O'Hara's Son Roofing Company (OSR) was founded in 1987 operates in the Construction industry. The company's main headquarters is located in 6437 North Avondale Avenue Chicago, Illinois 60631 United States; you can contact the 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?

O'Hara's Son Roofing Company (OSR) employees' email format typically follows the pattern of . 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?

O'Hara's Son Roofing Company (OSR) has approximately 105 employees as of May 2026. These team members are located across 2 continents, including North AmericaEurope.

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

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

Chief Operating Officer: B. M.
Corporate Controller: K. W.
Director Of Fp&a & Treasury: A. B.
Director Of Lead Generation & Sales Operations: D. G.
Senior Director, New Construction: J. A.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Everything for prospecting,
in one platform.

What you can expect from LeadIQ:

B2B data verified in real-time
Sync data to your CRM, & add it to an outreach sequence in one click
Integrations with your tech stack for optimal efficiency
A patented AI cold email generator
Account & contact-level job change tracking

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

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

Name search is limited — try advanced search instead