Dan OSullivan: Email & Phone Number

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RETIRED at Liberty Mutual Insurance|Sumter County, Florida, United States

Position:

RETIRED at Liberty Mutual Insurance

Location:

Sumter County, Florida, United States

View Dan OSullivan's Email

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Last updated: 2026-06-12

Updated: 2026-06-12

Found email addresses for Dan OSullivan:

Business emails:

d**************n@libertymutual.com,

s******n@libertymutual.com

Personal emails:

b***********1@yahoo.com,

d******l@hotmail.com,

d******l@juno.com

Found phones for Dan OSullivan:

+1-205-***-**71,

+1-909-***-**37,

+1-623-***-**40

A different Dan OSullivan?

Work Experience 37 years

RETIRED at Liberty Mutual Insurance

Aug 2017 - Current

Architect at Liberty Mutual Insurance

Jan 2011 - May 2017

Director, Enterprise Storage at Liberty Mutual Insurance

Jan 2009 - Dec 2010

Director, Enterprise Security at Liberty Mutual Insurance

Aug 2007 - Dec 2008

Director, Enterprise Storage at Liberty Mutual Insurance

Jul 2005 - Jul 2007

Director, PMO at Sappi

Dec 2002 - Jul 2005

Director, Infrastructure Operations at Cyrk

Apr 2000 - Nov 2002

Vice President, Infrastructure Operations at First Data Corporation

Dec 1989 - Apr 2000

Dan OSullivan started working in 1989, then the employee has changed 3 companies and 6 jobs. On average, Dan OSullivan works for one company for 4 years 6 months.

Their professional focus is Business Continuity, Business Intelligence, and Cloud Computing across 3 core areas.

Education

University of Massachusetts Amherst

High School Diploma at Boston Latin School

Frequently Asked Questions

What is Dan OSullivan's email address?

SignalHire found verified email addresses for Dan OSullivan, both business and personal. Their business email is d**************n@libertymutual.com, and personal emails include b***********1@yahoo.com, d******l@hotmail.com, and d******l@juno.com.

What is Dan OSullivan's phone number?

SignalHire found multiple verified phone numbers for Dan OSullivan: +1-205-***-**71, +1-909-***-**37, and +1-623-***-**40.

How do I contact Dan OSullivan at Liberty Mutual Insurance?

You can reach Dan OSullivan through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Dan OSullivan's professional background?

Dan OSullivan has 37 years of professional experience. They have held roles including Architect, Director, Enterprise Storage, and Director, Enterprise Security at companies such as Liberty Mutual Insurance, Liberty Mutual Insurance, and Liberty Mutual Insurance. Their education includes University of Massachusetts Amherst, and High School Diploma from Boston Latin School.

Is Dan OSullivan's contact information up to date?

Yes. Dan OSullivan's SignalHire profile was last updated on 12 June 2026, reflecting their current position as RETIRED at Liberty Mutual Insurance in Boston, MA, United States.

Dan OSullivan Namesakes

Name

Company

Position

Dan OSullivan

Amazon

Systems App Dev Eng (Cognos TM1 Developer)

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Dan OSullivan

Prospect Medical Holdings, Inc.

Information Technology Security Engineer

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Dan Osullivan

Westminster Country Club

Executive Chef

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